Commit Graph

1355477 Commits

Author SHA1 Message Date
Pavel Begunkov
c4b680ac28 nvme: fix implicit bool to flags conversion
nvme_map_user_request() takes flags as the last argument, but
nvme_uring_cmd_io() shoves a bool "vec" into it. It behaves as
expected because bool is converted to 0/1 and NVME_IOCTL_VEC is
defined as 1, but it's better to pass flags explicitly.

Fixes: 7b7fdb8e2d ("nvme: replace the "bool vec" arguments with flags in the ioctl path")
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Reviewed-by: Jens Axboe <axboe@kernel.dk>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Anuj Gupta <anuj20.g@samsung.com>
Reviewed-by: Kanchan Joshi <joshi.k@samsung.com>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: Caleb Sander Mateos <csander@purestorage.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2025-06-04 09:51:10 +02:00
Keith Busch
10f4a7cd72 nvme: fix command limits status code
The command specific status code, 0x183, was introduced in the NVMe 2.0
specification defined to "Command Size Limits Exceeded" and only ever
applied to DSM and Copy commands.  Fix the name and, remove the
incorrect translation to error codes and special treatment in the
target code for it.

Fixes: 3b7c33b28a ("nvme.h: add Write Zeroes definitions")
Cc: Chaitanya Kulkarni <chaitanyak@nvidia.com>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2025-06-04 09:51:10 +02:00
Uday Shankar
a2f4c1ae16 selftests: ublk: kublk: improve behavior on init failure
Some failure modes are handled poorly by kublk. For example, if ublk_drv
is built as a module but not currently loaded into the kernel, ./kublk
add ... just hangs forever. This happens because in this case (and a few
others), the worker process does not notify its parent (via a write to
the shared eventfd) that it has tried and failed to initialize, so the
parent hangs forever. Fix this by ensuring that we always notify the
parent process of any initialization failure, and have the parent print
a (not very descriptive) log line when this happens.

Signed-off-by: Uday Shankar <ushankar@purestorage.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20250603-ublk_init_fail-v1-1-87c91486230e@purestorage.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-06-03 20:19:44 -06:00
Caleb Sander Mateos
43a67dd812 block: flip iter directions in blk_rq_integrity_map_user()
blk_rq_integrity_map_user() creates the ubuf iter with ITER_DEST for
write-direction operations and ITER_SOURCE for read-direction ones.
This is backwards; writes use the user buffer as a source for metadata
and reads use it as a destination. Switch to the rq_data_dir() helper,
which maps writes to ITER_SOURCE (WRITE) and reads to ITER_DEST(READ).

Signed-off-by: Caleb Sander Mateos <csander@purestorage.com>
Fixes: fe8f4ca710 ("block: modify bio_integrity_map_user to accept iov_iter as argument")
Link: https://lore.kernel.org/r/20250603184752.1185676-1-csander@purestorage.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-06-03 17:24:59 -06:00
Caleb Sander Mateos
c09a8b00f8 block: drop direction param from bio_integrity_copy_user()
direction is determined from bio, which is already passed in. Compute
op_is_write(bio_op(bio)) directly instead of converting it to an iter
direction and back to a bool.

Signed-off-by: Caleb Sander Mateos <csander@purestorage.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Anuj Gupta <anuj20.g@samsung.com>
Link: https://lore.kernel.org/r/20250603183133.1178062-1-csander@purestorage.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-06-03 12:45:45 -06:00
Ming Lei
da12597a1d selftests: ublk: cover PER_IO_DAEMON in more stress tests
We have stress_03, stress_04 and stress_05 for checking new feature vs.
stress IO & device removal & ublk server crash & recovery, so let the
three existing stress tests cover PER_IO_DAEMON.

Then stress_06 can be removed, since the same test function is included in
stress_03.

Signed-off-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20250602132113.1398645-1-ming.lei@redhat.com
Reviewed-by: Uday Shankar <ushankar@purestorage.com>
[axboe: remove test_stress_06.sh from Makefile too]
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-06-02 12:00:31 -06:00
Uday Shankar
08652bd86e Documentation: ublk: document UBLK_F_PER_IO_DAEMON
Explain the restrictions imposed on ublk servers in two cases:
1. When UBLK_F_PER_IO_DAEMON is set (current ublk_drv)
2. When UBLK_F_PER_IO_DAEMON is not set (legacy)

Remove most references to per-queue daemons, as the new
UBLK_F_PER_IO_DAEMON feature renders that concept obsolete.

Signed-off-by: Uday Shankar <ushankar@purestorage.com>
Reviewed-by: Caleb Sander Mateos <csander@purestorage.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20250529-ublk_task_per_io-v8-9-e9d3b119336a@purestorage.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-05-31 14:38:57 -06:00
Uday Shankar
17574aa2a0 selftests: ublk: add stress test for per io daemons
Add a new test_stress_06 for the per io daemons feature. This is just a
copy of test_stress_01 with the per_io_tasks flag added, with varying
amounts of nthreads. This test is able to reproduce a panic which was
caught manually during development [1]; in the current version of this
patch set, it passes.

Note that this commit also makes all stress tests using the
run_io_and_remove helper more stressful by additionally exercising the
batch submit (queue_rqs) path.

[1] https://lore.kernel.org/linux-block/aDgwGoGCEpwd1mFY@fedora/

Suggested-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Uday Shankar <ushankar@purestorage.com>
Link: https://lore.kernel.org/r/20250529-ublk_task_per_io-v8-8-e9d3b119336a@purestorage.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-05-31 14:38:53 -06:00
Uday Shankar
236918d3e9 selftests: ublk: add functional test for per io daemons
Add a new test test_generic_12 which:

- sets up a ublk server with per_io_tasks and a different number of ublk
  server threads and ublk_queues. This is possible now that these
  objects are decoupled
- runs some I/O load from a single CPU
- verifies that all the ublk server threads handle some I/O

Before this changeset, this test fails, since I/O issued from one CPU is
always handled by the one ublk server thread. After this changeset, the
test passes.

In the future, the last check above may be strengthened to "verify that
all ublk server threads handle the same amount of I/O." However, this
requires some adjustments/bugfixes to tag allocation, so this work is
postponed to a followup.

Signed-off-by: Uday Shankar <ushankar@purestorage.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20250529-ublk_task_per_io-v8-7-e9d3b119336a@purestorage.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-05-31 14:38:48 -06:00
Uday Shankar
abe54c1603 selftests: ublk: kublk: decouple ublk_queues from ublk server threads
Add support in kublk for decoupled ublk_queues and ublk server threads.
kublk now has two modes of operation:

- (preexisting mode) threads and queues are paired 1:1, and each thread
  services all the I/Os of one queue
- (new mode) thread and queue counts are independently configurable.
  threads service I/Os in a way that balances load across threads even
  if load is not balanced over queues.

The default is the preexisting mode. The new mode is activated by
passing the --per_io_tasks flag.

Signed-off-by: Uday Shankar <ushankar@purestorage.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20250529-ublk_task_per_io-v8-6-e9d3b119336a@purestorage.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-05-31 14:38:43 -06:00
Uday Shankar
b9848ca7a7 selftests: ublk: kublk: move per-thread data out of ublk_queue
Towards the goal of decoupling ublk_queues from ublk server threads,
move resources/data that should be per-thread rather than per-queue out
of ublk_queue and into a new struct ublk_thread.

Signed-off-by: Uday Shankar <ushankar@purestorage.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20250529-ublk_task_per_io-v8-5-e9d3b119336a@purestorage.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-05-31 14:38:39 -06:00
Uday Shankar
8f75ba28b8 selftests: ublk: kublk: lift queue initialization out of thread
Currently, each ublk server I/O handler thread initializes its own
queue. However, as we move towards decoupled ublk_queues and ublk server
threads, this model does not make sense anymore, as there will no longer
be a concept of a thread having "its own" queue. So lift queue
initialization out of the per-thread ublk_io_handler_fn and into a loop
in ublk_start_daemon (which runs once for each device).

There is a part of ublk_queue_init (ring initialization) which does
actually need to happen on the thread that will use the ring; that is
separated into a separate ublk_thread_init which is still called by each
I/O handler thread.

Signed-off-by: Uday Shankar <ushankar@purestorage.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20250529-ublk_task_per_io-v8-4-e9d3b119336a@purestorage.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-05-31 14:38:35 -06:00
Uday Shankar
9773709752 selftests: ublk: kublk: tie sqe allocation to io instead of queue
We currently have a helper ublk_queue_alloc_sqes which the ublk targets
use to allocate SQEs for their own operations. However, as we move
towards decoupled ublk_queues and ublk server threads, this helper does
not make sense anymore. SQEs are allocated from rings, and we will have
one ring per thread to avoid locking. Change the SQE allocation helper
to ublk_io_alloc_sqes. Currently this still allocates SQEs from the io's
queue's ring, but when we fully decouple threads and queues, it will
allocate from the io's thread's ring instead.

Signed-off-by: Uday Shankar <ushankar@purestorage.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20250529-ublk_task_per_io-v8-3-e9d3b119336a@purestorage.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-05-31 14:38:30 -06:00
Uday Shankar
bf098d7269 selftests: ublk: kublk: plumb q_id in io_uring user_data
Currently, when we process CQEs, we know which ublk_queue we are working
on because we know which ring we are working on, and ublk_queues and
rings are in 1:1 correspondence. However, as we decouple ublk_queues
from ublk server threads, ublk_queues and rings will no longer be in 1:1
correspondence - each ublk server thread will have a ring, and each
thread may issue commands against more than one ublk_queue. So in order
to know which ublk_queue a CQE refers to, plumb that information in the
associated SQE's user_data.

Signed-off-by: Uday Shankar <ushankar@purestorage.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20250529-ublk_task_per_io-v8-2-e9d3b119336a@purestorage.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-05-31 14:38:26 -06:00
Uday Shankar
ab03a61c66 ublk: have a per-io daemon instead of a per-queue daemon
Currently, ublk_drv associates to each hardware queue (hctx) a unique
task (called the queue's ubq_daemon) which is allowed to issue
COMMIT_AND_FETCH commands against the hctx. If any other task attempts
to do so, the command fails immediately with EINVAL. When considered
together with the block layer architecture, the result is that for each
CPU C on the system, there is a unique ublk server thread which is
allowed to handle I/O submitted on CPU C. This can lead to suboptimal
performance under imbalanced load generation. For an extreme example,
suppose all the load is generated on CPUs mapping to a single ublk
server thread. Then that thread may be fully utilized and become the
bottleneck in the system, while other ublk server threads are totally
idle.

This issue can also be addressed directly in the ublk server without
kernel support by having threads dequeue I/Os and pass them around to
ensure even load. But this solution requires inter-thread communication
at least twice for each I/O (submission and completion), which is
generally a bad pattern for performance. The problem gets even worse
with zero copy, as more inter-thread communication would be required to
have the buffer register/unregister calls to come from the correct
thread.

Therefore, address this issue in ublk_drv by allowing each I/O to have
its own daemon task. Two I/Os in the same queue are now allowed to be
serviced by different daemon tasks - this was not possible before.
Imbalanced load can then be balanced across all ublk server threads by
having the ublk server threads issue FETCH_REQs in a round-robin manner.
As a small toy example, consider a system with a single ublk device
having 2 queues, each of depth 4. A ublk server having 4 threads could
issue its FETCH_REQs against this device as follows (where each entry is
the qid,tag pair that the FETCH_REQ targets):

ublk server thread:	T0	T1	T2	T3
			0,0	0,1	0,2	0,3
			1,3	1,0	1,1	1,2

This setup allows for load that is concentrated on one hctx/ublk_queue
to be spread out across all ublk server threads, alleviating the issue
described above.

Add the new UBLK_F_PER_IO_DAEMON feature to ublk_drv, which ublk servers
can use to essentially test for the presence of this change and tailor
their behavior accordingly.

Signed-off-by: Uday Shankar <ushankar@purestorage.com>
Reviewed-by: Caleb Sander Mateos <csander@purestorage.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Jens Axboe <axboe@kernel.dk>
Link: https://lore.kernel.org/r/20250529-ublk_task_per_io-v8-1-e9d3b119336a@purestorage.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-05-31 14:38:21 -06:00
Jens Axboe
f4d22ac96a Merge tag 'md-6.16-20250530' of https://git.kernel.org/pub/scm/linux/kernel/git/mdraid/linux into block-6.16
Pull MD fixes from Yu:

"- fix REQ_RAHEAD and REQ_NOWAIT IO err handling for raid1/10
 - fix max_write_behind setting for dm-raid
 - some minor cleanups"

* tag 'md-6.16-20250530' of https://git.kernel.org/pub/scm/linux/kernel/git/mdraid/linux:
  md/md-bitmap: remove parameter slot from bitmap_create()
  md/md-bitmap: cleanup bitmap_ops->startwrite()
  md/dm-raid: remove max_write_behind setting limit
  md/md-bitmap: fix dm-raid max_write_behind setting
  md/raid1,raid10: don't handle IO error for REQ_RAHEAD and REQ_NOWAIT
2025-05-30 04:42:53 -06:00
Yu Kuai
01bf468c4e md/md-bitmap: remove parameter slot from bitmap_create()
All callers pass in '-1' for 'slot', hence it can be removed.

Link: https://lore.kernel.org/linux-raid/20250524061320.370630-6-yukuai1@huaweicloud.com
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Xiao Ni <xni@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
2025-05-30 15:47:23 +08:00
Yu Kuai
38f520a37d md/md-bitmap: cleanup bitmap_ops->startwrite()
bitmap_startwrite() always return 0, and the caller doesn't check return
value as well, hence change the method to void.

Also rename startwrite/endwrite to start_write/end_write, which is more in
line with the usual naming convention.

Link: https://lore.kernel.org/linux-raid/20250524061320.370630-4-yukuai1@huaweicloud.com
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Reviewed-by: Xiao Ni <xni@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
2025-05-30 15:47:23 +08:00
Yu Kuai
b886475804 md/dm-raid: remove max_write_behind setting limit
The comments said 'vaule in kB', while the value actually means the
number of write_behind IOs. And since md-bitmap will automatically
adjust the value to max COUNTER_MAX / 2, there is no need to fail
early.

Also move some macros that is only used md-bitmap.c.

Link: https://lore.kernel.org/linux-raid/20250524061320.370630-15-yukuai1@huaweicloud.com
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Xiao Ni <xni@redhat.com>
2025-05-30 15:47:23 +08:00
Yu Kuai
2afe17794c md/md-bitmap: fix dm-raid max_write_behind setting
It's supposed to be COUNTER_MAX / 2, not COUNTER_MAX.

Link: https://lore.kernel.org/linux-raid/20250524061320.370630-14-yukuai1@huaweicloud.com
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
2025-05-30 15:47:23 +08:00
Yu Kuai
9f346f7d4e md/raid1,raid10: don't handle IO error for REQ_RAHEAD and REQ_NOWAIT
IO with REQ_RAHEAD or REQ_NOWAIT can fail early, even if the storage medium
is fine, hence record badblocks or remove the disk from array does not
make sense.

This problem if found by lvm2 test lvcreate-large-raid, where dm-zero
will fail read ahead IO directly.

Fixes: e879a0d9cb ("md/raid1,raid10: don't ignore IO flags")
Reported-and-tested-by: Mikulas Patocka <mpatocka@redhat.com>
Closes: https://lore.kernel.org/all/34fa755d-62c8-4588-8ee1-33cb1249bdf2@redhat.com/
Link: https://lore.kernel.org/linux-raid/20250527081407.3004055-1-yukuai1@huaweicloud.com
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
2025-05-30 15:46:45 +08:00
Ming Lei
39d86db34e loop: add file_start_write() and file_end_write()
file_start_write() and file_end_write() should be added around ->write_iter().

Recently we switch to ->write_iter() from vfs_iter_write(), and the
implied file_start_write() and file_end_write() are lost.

Also we never add them for dio code path, so add them back for covering
both.

Cc: Jeff Moyer <jmoyer@redhat.com>
Fixes: f2fed441c6 ("loop: stop using vfs_iter_{read,write} for buffered I/O")
Fixes: bc07c10a36 ("block: loop: support DIO & AIO")
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20250527153405.837216-1-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-05-27 10:14:26 -06:00
Mingzhe Zou
208c1559c5 bcache: reserve more RESERVE_BTREE buckets to prevent allocator hang
Reported an IO hang and unrecoverable error in our testing environment.

After careful research, we found that bch_allocator_thread is stuck,
the call stack is as follows:
[<0>] __switch_to+0xbc/0x108
[<0>] __closure_sync+0x7c/0xbc [bcache]
[<0>] bch_prio_write+0x430/0x448 [bcache]
[<0>] bch_allocator_thread+0xb44/0xb70 [bcache]
[<0>] kthread+0x124/0x130
[<0>] ret_from_fork+0x10/0x18

Moreover, the RESERVE_BTREE type bucket slot are empty and journal_full
occurs at the same time.

When the cache disk is first used, the sb.nJournal_buckets defaults to 0.
So, only 8 RESERVE_BTREE type buckets are reserved. If RESERVE_BTREE type
buckets used up or btree_check_reserve() failed when request handle btree
split, the request will be repeatedly retried and wait for alloc thread to
fill in.

After the alloc thread fills the buckets, it will call bch_prio_write().
If journal_full occurs simultaneously at this time, journal_reclaim() and
btree_flush_write() will be called sequentially, journal_write cannot be
completed.

This is a low probability event, we believe that reserve more RESERVE_BTREE
buckets can avoid the worst situation.

Fixes: 682811b3ce ("bcache: fix for allocator and register thread race")
Signed-off-by: Mingzhe Zou <mingzhe.zou@easystack.cn>
Signed-off-by: Coly Li <colyli@kernel.org>
Link: https://lore.kernel.org/r/20250527051601.74407-4-colyli@kernel.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-05-27 07:38:19 -06:00
Robert Pang
5a08e49f23 bcache: remove unused constants
Remove constants MAX_NEED_GC and MAX_SAVE_PRIO in btree.c that have been unused
since initial commit.

Signed-off-by: Robert Pang <robertpang@google.com>
Signed-off-by: Coly Li <colyli@kernel.org>
Link: https://lore.kernel.org/r/20250527051601.74407-3-colyli@kernel.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-05-27 07:38:19 -06:00
Linggang Zeng
1e46ed947e bcache: fix NULL pointer in cache_set_flush()
1. LINE#1794 - LINE#1887 is some codes about function of
   bch_cache_set_alloc().
2. LINE#2078 - LINE#2142 is some codes about function of
   register_cache_set().
3. register_cache_set() will call bch_cache_set_alloc() in LINE#2098.

 1794 struct cache_set *bch_cache_set_alloc(struct cache_sb *sb)
 1795 {
 ...
 1860         if (!(c->devices = kcalloc(c->nr_uuids, sizeof(void *), GFP_KERNEL)) ||
 1861             mempool_init_slab_pool(&c->search, 32, bch_search_cache) ||
 1862             mempool_init_kmalloc_pool(&c->bio_meta, 2,
 1863                                 sizeof(struct bbio) + sizeof(struct bio_vec) *
 1864                                 bucket_pages(c)) ||
 1865             mempool_init_kmalloc_pool(&c->fill_iter, 1, iter_size) ||
 1866             bioset_init(&c->bio_split, 4, offsetof(struct bbio, bio),
 1867                         BIOSET_NEED_BVECS|BIOSET_NEED_RESCUER) ||
 1868             !(c->uuids = alloc_bucket_pages(GFP_KERNEL, c)) ||
 1869             !(c->moving_gc_wq = alloc_workqueue("bcache_gc",
 1870                                                 WQ_MEM_RECLAIM, 0)) ||
 1871             bch_journal_alloc(c) ||
 1872             bch_btree_cache_alloc(c) ||
 1873             bch_open_buckets_alloc(c) ||
 1874             bch_bset_sort_state_init(&c->sort, ilog2(c->btree_pages)))
 1875                 goto err;
                      ^^^^^^^^
 1876
 ...
 1883         return c;
 1884 err:
 1885         bch_cache_set_unregister(c);
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^
 1886         return NULL;
 1887 }
 ...
 2078 static const char *register_cache_set(struct cache *ca)
 2079 {
 ...
 2098         c = bch_cache_set_alloc(&ca->sb);
 2099         if (!c)
 2100                 return err;
                      ^^^^^^^^^^
 ...
 2128         ca->set = c;
 2129         ca->set->cache[ca->sb.nr_this_dev] = ca;
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 ...
 2138         return NULL;
 2139 err:
 2140         bch_cache_set_unregister(c);
 2141         return err;
 2142 }

(1) If LINE#1860 - LINE#1874 is true, then do 'goto err'(LINE#1875) and
    call bch_cache_set_unregister()(LINE#1885).
(2) As (1) return NULL(LINE#1886), LINE#2098 - LINE#2100 would return.
(3) As (2) has returned, LINE#2128 - LINE#2129 would do *not* give the
    value to c->cache[], it means that c->cache[] is NULL.

LINE#1624 - LINE#1665 is some codes about function of cache_set_flush().
As (1), in LINE#1885 call
bch_cache_set_unregister()
---> bch_cache_set_stop()
     ---> closure_queue()
          -.-> cache_set_flush() (as below LINE#1624)

 1624 static void cache_set_flush(struct closure *cl)
 1625 {
 ...
 1654         for_each_cache(ca, c, i)
 1655                 if (ca->alloc_thread)
                          ^^
 1656                         kthread_stop(ca->alloc_thread);
 ...
 1665 }

(4) In LINE#1655 ca is NULL(see (3)) in cache_set_flush() then the
    kernel crash occurred as below:
[  846.712887] bcache: register_cache() error drbd6: cannot allocate memory
[  846.713242] bcache: register_bcache() error : failed to register device
[  846.713336] bcache: cache_set_free() Cache set 2f84bdc1-498a-4f2f-98a7-01946bf54287 unregistered
[  846.713768] BUG: unable to handle kernel NULL pointer dereference at 00000000000009f8
[  846.714790] PGD 0 P4D 0
[  846.715129] Oops: 0000 [#1] SMP PTI
[  846.715472] CPU: 19 PID: 5057 Comm: kworker/19:16 Kdump: loaded Tainted: G           OE    --------- -  - 4.18.0-147.5.1.el8_1.5es.3.x86_64 #1
[  846.716082] Hardware name: ESPAN GI-25212/X11DPL-i, BIOS 2.1 06/15/2018
[  846.716451] Workqueue: events cache_set_flush [bcache]
[  846.716808] RIP: 0010:cache_set_flush+0xc9/0x1b0 [bcache]
[  846.717155] Code: 00 4c 89 a5 b0 03 00 00 48 8b 85 68 f6 ff ff a8 08 0f 84 88 00 00 00 31 db 66 83 bd 3c f7 ff ff 00 48 8b 85 48 ff ff ff 74 28 <48> 8b b8 f8 09 00 00 48 85 ff 74 05 e8 b6 58 a2 e1 0f b7 95 3c f7
[  846.718026] RSP: 0018:ffffb56dcf85fe70 EFLAGS: 00010202
[  846.718372] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[  846.718725] RDX: 0000000000000001 RSI: 0000000040000001 RDI: 0000000000000000
[  846.719076] RBP: ffffa0ccc0f20df8 R08: ffffa0ce1fedb118 R09: 000073746e657665
[  846.719428] R10: 8080808080808080 R11: 0000000000000000 R12: ffffa0ce1fee8700
[  846.719779] R13: ffffa0ccc0f211a8 R14: ffffa0cd1b902840 R15: ffffa0ccc0f20e00
[  846.720132] FS:  0000000000000000(0000) GS:ffffa0ce1fec0000(0000) knlGS:0000000000000000
[  846.720726] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  846.721073] CR2: 00000000000009f8 CR3: 00000008ba00a005 CR4: 00000000007606e0
[  846.721426] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  846.721778] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  846.722131] PKRU: 55555554
[  846.722467] Call Trace:
[  846.722814]  process_one_work+0x1a7/0x3b0
[  846.723157]  worker_thread+0x30/0x390
[  846.723501]  ? create_worker+0x1a0/0x1a0
[  846.723844]  kthread+0x112/0x130
[  846.724184]  ? kthread_flush_work_fn+0x10/0x10
[  846.724535]  ret_from_fork+0x35/0x40

Now, check whether that ca is NULL in LINE#1655 to fix the issue.

Signed-off-by: Linggang Zeng <linggang.zeng@easystack.cn>
Signed-off-by: Mingzhe Zou <mingzhe.zou@easystack.cn>
Signed-off-by: Coly Li <colyli@kernel.org>
Link: https://lore.kernel.org/r/20250527051601.74407-2-colyli@kernel.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-05-27 07:38:19 -06:00
Linus Torvalds
914873bc7d Add the CONFIG_X86_NATIVE_CPU=y build option to locally optimize the kernel
build with '-march=native'.
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
 -----BEGIN PGP SIGNATURE-----
 
 iQJFBAABCgAvFiEEBpT5eoXrXCwVQwEKEnMQ0APhK1gFAmgy+q4RHG1pbmdvQGtl
 cm5lbC5vcmcACgkQEnMQ0APhK1gtng//US0TNfQpSoZSL7ezle4/H5F4VdKq0a8u
 FN7LbjSFPtOQCOmWJfcj3AvYMEiZURVqwyc2MNxIPqunaXT9gHVCrKJ1ZilhjPn4
 UW6XEaDoNxXtKOBf9RiCAjAYkWr4IIKSgz7JrZaQLXfwzwP8Ux0MLm4kjatjEMnb
 kLoYPJf7eO32QCfO2qIwEb2THtxpbLJijmEg/QdAjmshKyz4tQ1ecQ/7KjondDK5
 hTnRQsKqucBMH8BwZ9Wx49HRWjmzeZ41lzgHaOj8R2pXFQNmcfdogvh0+BuGanGP
 2vZCJGYqmr2h4HHcHLJdioZBEkrHSTnCsfu5GIjQq9jzLum4634TXxNq8MklzAEt
 YC8EvOam/LaaEyDdEDUXMlEeZszQHDL8Gr+F5JBM6iDF/1zq0bYSm0498/ShQbvk
 /oVPKQQSixwrEPSVvowpJacCT6kagOhiEaV1cAglRETZYWtZ5yIdwhvpOn4ur1Gq
 cQxpaMvzy2O6zy0HepMf/B+mr6So+gmWD+tiu1qfuRozJwdZ7ruUMAZBd2fv/+lC
 xWv42JV3CYp5sLy/7uld3UnLDGYRZjh20Cl8HETT1VIqvR5MPXG1HuuwbaAccO0h
 /nnVxDka5W4VccyN6vAXH+PzDKCOIu9Pke8CQDtNiYvotVlRiwFGVxwqubMsci7M
 xMfTKNsU4aw=
 =WXzD
 -----END PGP SIGNATURE-----

Merge tag 'x86-build-2025-05-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 build updates from Ingo Molnar:
 "Add the CONFIG_X86_NATIVE_CPU=y build option to locally optimize the
  kernel build with '-march=native'"

* tag 'x86-build-2025-05-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/kbuild/64: Restrict clang versions that can use '-march=native'
  x86/kbuild/64: Test for the availability of the -mtune=native compiler flag
  x86/kbuild/64: Add the CONFIG_X86_NATIVE_CPU option to locally optimize the kernel with '-march=native'
2025-05-26 21:41:14 -07:00
Linus Torvalds
24244df067 Two changes to simplify the x86 vDSO code a bit.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
 -----BEGIN PGP SIGNATURE-----
 
 iQJFBAABCgAvFiEEBpT5eoXrXCwVQwEKEnMQ0APhK1gFAmgy+aQRHG1pbmdvQGtl
 cm5lbC5vcmcACgkQEnMQ0APhK1gaJxAAoYLmzJfVa/s4NdjYXpEM4H+iUOiynbOX
 TQsQOprRLNrYvdMhduFWrre1uzrvid+RVyV/eKtJ2hQMyMWlC8bJ4IpXbxFC4jAJ
 kAOtYj0HjfAgZfOxZ+JRye0ODVe7vne0dXhfrPNmM6VjIZV0jvIj213uhvmZuXSN
 J59TSYB8J79r4WwrEexA1BFjjKrQsD2wEgi4LEryJRXtw/pWF7RpeuTga46ggLnn
 7iTrWyo/fKQ6TVirGI2fJj1+g9jrvLED7hk5Lx4Ek1iYt6E/b6WjMyIvVL3HMlfo
 GVjMt1Or9eRG9n4iqmFaMwJSmL2w3HLJmHazl7dIC8KLOfgwKikxUu5l+QMdhTgm
 kKZbJoup7ZJ4XpjKDD1KcHNL07MkMYNgsmn1vCaBtt/Ez/YRfjtYbJy1PJtjFdNw
 05pUWYXIx9ySjqPRVOwGbCTeXzFlJPSRFH0m7FARCbVMkFBXVcyF5NWpzmGF++iz
 GBW1oBgIz5uXyXDv9+U+QJklJPLMeXkrz3B9vz4O7VwEpNhujHJW3rqXdQB2/SAn
 T8LWCOw4NJIYIVl2gHrA7ZEOeN5lY9zv/QQS5zVZSh5tJl/lcX5C+QDXWjFl0oMI
 HxUI1b3Mb28aEyqNnJPaxY/K/S45X/BulL6nhnoU9NX2ulA/S72jhn3kMdxOPeKS
 8fyX0O5TGA4=
 =WdUd
 -----END PGP SIGNATURE-----

Merge tag 'x86-entry-2025-05-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 vdso updates from Ingo Molnar:
 "Two changes to simplify the x86 vDSO code a bit"

* tag 'x86-entry-2025-05-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/vdso: Remove redundant #ifdeffery around in_ia32_syscall()
  x86/vdso: Remove #ifdeffery around page setup variants
2025-05-26 21:21:12 -07:00
Linus Torvalds
0aee061726 Move the x86 page fault tracepoints to generic code, because
other architectures would like to make use of them as well.
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
 -----BEGIN PGP SIGNATURE-----
 
 iQJFBAABCgAvFiEEBpT5eoXrXCwVQwEKEnMQ0APhK1gFAmgy+RARHG1pbmdvQGtl
 cm5lbC5vcmcACgkQEnMQ0APhK1jTHA//eIBOFKJdxmhpJ95kzA0tRXue+FUSTAX+
 j9rMZOJpR9hnVkr0pBxH8bU42lji4+6b2vujMHaT59n5i2kH5tPFHW1xfEnpbVNw
 thSRsFxrUKsNnKPBju0vK9WQs9e1cn2ZvVBbh2SHrATKQrcTCmJroEERZDX0cdnn
 VrPeGoc7UUAjxE23c3vnZOzAJDapIc9zPAdfVGRa7xHqlq5grryG+SfHFzT/fd08
 5Qwu8TN37jo1HU5v2I4RYIh4Alc1lXtWTfJAc0bks0Cpryu+Et9+N2XANu/VatVw
 cve/Ubwdou9m0QxQtUTULttEbMSBB8Ylc7DJ1PdGkhULxNM8cCb+Yx9C8Gk0+8Rf
 SP8/ZSVK8EE+3ETP+J8r8VXoXrNgTPSjMeI1s4rZD/b9QpRKE4g/Khu+R9UA8JBV
 yuYdy2xkeRbfFVzoGDSVnZItk18MuAoq4hSNqgAxl9/S33HWG84KHQAnjzixCqb4
 9Ai7n3/FBEe1edLJXKoqWK96mTa5P/vpGjMnL8wQ0rAnSYI+V2OSwPpZ9HHviw3g
 qYYMqsmiU6ChbfcUnuub/YwdJFdRieVSOa7wh3H6mfKAuakpS0At8fIyD5mBtFtA
 /qeSD9INII/guT1gdTgqGsirXeObbmNpC+HJjz8hRvsoP6hdoT2L/UZsUH89LcDl
 qd8MKeV1Kew=
 =xi0h
 -----END PGP SIGNATURE-----

Merge tag 'x86-debug-2025-05-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 debug updates from Ingo Molnar:
 "Move the x86 page fault tracepoints to generic code, because other
  architectures would like to make use of them as well"

* tag 'x86-debug-2025-05-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/tracing, x86/mm: Move page fault tracepoints to generic
  x86/tracing, x86/mm: Remove redundant trace_pagefault_key
2025-05-26 21:18:59 -07:00
Linus Torvalds
020fca04c6 Misc x86 cleanups: kernel-doc updates and a string API transition patch.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
 -----BEGIN PGP SIGNATURE-----
 
 iQJFBAABCgAvFiEEBpT5eoXrXCwVQwEKEnMQ0APhK1gFAmgy+I0RHG1pbmdvQGtl
 cm5lbC5vcmcACgkQEnMQ0APhK1g5vRAAr0+sk9sxuu7RfVwLaYzYqK2tzwYYr4o4
 bud0fDR/h53cGtanaGdWGPk/YIYraQJHrzCVbHa4XcLoeUVNIKSJqQjpujxgatMC
 ixQgLmWJNiu7ZqPwNiisLPSxshB+5Svi+mFXFt4MoqZuUY/IcG/f5EI6ntd2z9/g
 Yc+iU94KLJDlAvDixvrb+DvVxGkYo8OmwXELIqJm/K/4Wm6iz+OboJpZLBe0hcGx
 N9DO/n8jGj61XTCWO//hX0xziUZuSNRtrr7DieobGrYZJrSysWu9pTVzry9zGCk2
 x/mTt/7zaY1kC/eKAQhi+gZ95rx+R/5HrKfPPS9mQZ+Jf5KNKTVJ94QB0AmLrg5U
 OWUY+3N2alJPuUOP4q8CjQ2BrVijzUaZg/5K1G+8ekzlBJYlkWaZlsgEUi1bTM2M
 UaGMajDrXrZyANlx2ux79R0nFWJKdrJVNHN7MEpB4P6ezozbuN0r4NJBIKDAKysW
 o3m2cE6oe3Bi1Xe8btbVuWInfWwdOnZHr1yry27htumkuqlO5mzV22qlLL7zXno8
 ZvpfGoAXkIFPFyYW30NGyGQfYwCCEnsLizPa3K0t7Oc8rDsKAXX8Xt+4dDo7J+JY
 TTnmMVGlDvSKX+Wi+cZrRTXH7LvibuDvaWHumhz51plGBtL0WS6SxO3MXmgBGhr1
 DXBYD2qoOgc=
 =0OZh
 -----END PGP SIGNATURE-----

Merge tag 'x86-cleanups-2025-05-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 cleanups from Ingo Molnar:
 "Misc x86 cleanups: kernel-doc updates and a string API transition
  patch"

* tag 'x86-cleanups-2025-05-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/power: hibernate: Fix W=1 build kernel-doc warnings
  x86/mm/pat: Fix W=1 build kernel-doc warning
  x86/CPU/AMD: Replace strcpy() with strscpy()
2025-05-26 21:15:06 -07:00
Linus Torvalds
785cdec46e Core x86 updates for v6.16:
Boot code changes:
 
  - A large series of changes to reorganize the x86 boot code into a better isolated
    and easier to maintain base of PIC early startup code in arch/x86/boot/startup/,
    by Ard Biesheuvel.
 
    Motivation & background:
 
 	| Since commit
 	|
 	|    c88d71508e ("x86/boot/64: Rewrite startup_64() in C")
 	|
 	| dated Jun 6 2017, we have been using C code on the boot path in a way
 	| that is not supported by the toolchain, i.e., to execute non-PIC C
 	| code from a mapping of memory that is different from the one provided
 	| to the linker. It should have been obvious at the time that this was a
 	| bad idea, given the need to sprinkle fixup_pointer() calls left and
 	| right to manipulate global variables (including non-pointer variables)
 	| without crashing.
 	|
 	| This C startup code has been expanding, and in particular, the SEV-SNP
 	| startup code has been expanding over the past couple of years, and
 	| grown many of these warts, where the C code needs to use special
 	| annotations or helpers to access global objects.
 
    This tree includes the first phase of this work-in-progress x86 boot code
    reorganization.
 
 Scalability enhancements and micro-optimizations:
 
  - Improve code-patching scalability (Eric Dumazet)
  - Remove MFENCEs for X86_BUG_CLFLUSH_MONITOR (Andrew Cooper)
 
 CPU features enumeration updates:
 
  - Thorough reorganization and cleanup of CPUID parsing APIs (Ahmed S. Darwish)
  - Fix, refactor and clean up the cacheinfo code (Ahmed S. Darwish, Thomas Gleixner)
  - Update CPUID bitfields to x86-cpuid-db v2.3 (Ahmed S. Darwish)
 
 Memory management changes:
 
  - Allow temporary MMs when IRQs are on (Andy Lutomirski)
  - Opt-in to IRQs-off activate_mm() (Andy Lutomirski)
  - Simplify choose_new_asid() and generate better code (Borislav Petkov)
  - Simplify 32-bit PAE page table handling (Dave Hansen)
  - Always use dynamic memory layout (Kirill A. Shutemov)
  - Make SPARSEMEM_VMEMMAP the only memory model (Kirill A. Shutemov)
  - Make 5-level paging support unconditional (Kirill A. Shutemov)
  - Stop prefetching current->mm->mmap_lock on page faults (Mateusz Guzik)
  - Predict valid_user_address() returning true (Mateusz Guzik)
  - Consolidate initmem_init() (Mike Rapoport)
 
 FPU support and vector computing:
 
  - Enable Intel APX support (Chang S. Bae)
  - Reorgnize and clean up the xstate code (Chang S. Bae)
  - Make task_struct::thread constant size (Ingo Molnar)
  - Restore fpu_thread_struct_whitelist() to fix CONFIG_HARDENED_USERCOPY=y
    (Kees Cook)
  - Simplify the switch_fpu_prepare() + switch_fpu_finish() logic (Oleg Nesterov)
  - Always preserve non-user xfeatures/flags in __state_perm (Sean Christopherson)
 
 Microcode loader changes:
 
  - Help users notice when running old Intel microcode (Dave Hansen)
  - AMD: Do not return error when microcode update is not necessary (Annie Li)
  - AMD: Clean the cache if update did not load microcode (Boris Ostrovsky)
 
 Code patching (alternatives) changes:
 
  - Simplify, reorganize and clean up the x86 text-patching code (Ingo Molnar)
  - Make smp_text_poke_batch_process() subsume smp_text_poke_batch_finish()
    (Nikolay Borisov)
  - Refactor the {,un}use_temporary_mm() code (Peter Zijlstra)
 
 Debugging support:
 
  - Add early IDT and GDT loading to debug relocate_kernel() bugs (David Woodhouse)
  - Print the reason for the last reset on modern AMD CPUs (Yazen Ghannam)
  - Add AMD Zen debugging document (Mario Limonciello)
  - Fix opcode map (!REX2) superscript tags (Masami Hiramatsu)
  - Stop decoding i64 instructions in x86-64 mode at opcode (Masami Hiramatsu)
 
 CPU bugs and bug mitigations:
 
  - Remove X86_BUG_MMIO_UNKNOWN (Borislav Petkov)
  - Fix SRSO reporting on Zen1/2 with SMT disabled (Borislav Petkov)
  - Restructure and harmonize the various CPU bug mitigation methods
    (David Kaplan)
  - Fix spectre_v2 mitigation default on Intel (Pawan Gupta)
 
 MSR API:
 
  - Large MSR code and API cleanup (Xin Li)
  - In-kernel MSR API type cleanups and renames (Ingo Molnar)
 
 PKEYS:
 
  - Simplify PKRU update in signal frame (Chang S. Bae)
 
 NMI handling code:
 
  - Clean up, refactor and simplify the NMI handling code (Sohil Mehta)
  - Improve NMI duration console printouts (Sohil Mehta)
 
 Paravirt guests interface:
 
  - Restrict PARAVIRT_XXL to 64-bit only (Kirill A. Shutemov)
 
 SEV support:
 
  - Share the sev_secrets_pa value again (Tom Lendacky)
 
 x86 platform changes:
 
  - Introduce the <asm/amd/> header namespace (Ingo Molnar)
  - i2c: piix4, x86/platform: Move the SB800 PIIX4 FCH definitions to <asm/amd/fch.h>
    (Mario Limonciello)
 
 Fixes and cleanups:
 
  - x86 assembly code cleanups and fixes (Uros Bizjak)
 
  - Misc fixes and cleanups (Andi Kleen, Andy Lutomirski, Andy Shevchenko,
    Ard Biesheuvel, Bagas Sanjaya, Baoquan He, Borislav Petkov, Chang S. Bae,
    Chao Gao, Dan Williams, Dave Hansen, David Kaplan, David Woodhouse,
    Eric Biggers, Ingo Molnar, Josh Poimboeuf, Juergen Gross, Malaya Kumar Rout,
    Mario Limonciello, Nathan Chancellor, Oleg Nesterov, Pawan Gupta,
    Peter Zijlstra, Shivank Garg, Sohil Mehta, Thomas Gleixner, Uros Bizjak,
    Xin Li)
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
 -----BEGIN PGP SIGNATURE-----
 
 iQJFBAABCgAvFiEEBpT5eoXrXCwVQwEKEnMQ0APhK1gFAmgy9WARHG1pbmdvQGtl
 cm5lbC5vcmcACgkQEnMQ0APhK1jJSw/+OW2zvAx602doujBIE17vFLU7R10Xwj5H
 lVgomkWCoTNscUZPhdT/iI+/kQF1fG8PtN9oZKUsTAUswldKJsqu7KevobviesiW
 qI+FqH/fhHaIk7GVh9VP65Dgrdki8zsgd7BFxD8pLRBlbZTxTxXNNkuNJrs6LxJh
 SxWp/FVtKo6Wd57qlUcsdo0tilAfcuhlEweFUarX55X2ouhdeHjcGNpxj9dHKOh8
 M7R5yMYFrpfdpSms+WaCnKKahWHaIQtQTsPAyKwoVdtfl1kK+7NgaCF55Gbo3ogp
 r59JwC/CGruDa5QnnDizCwFIwpZw9M52Q1NhP/eLEZbDGB4Yya3b5NW+Ya+6rPvO
 ZZC3e1uUmlxW3lrYflUHurnwrVb2GjkQZOdf0gfnly/7LljIicIS2dk4qIQF9NBd
 sQPpW5hjmIz9CsfeL8QaJW38pQyMsQWznFuz4YVuHcLHvleb3hR+n4fNfV5Lx9bw
 oirVETSIT5hy/msAgShPqTqFUEiVCgp16ow20YstxxzFu/FQ+VG987tkeUyFkPMe
 q1v5yF1hty+TkM4naKendIZ/MJnsrv0AxaegFz9YQrKGL1UPiOajQbSyKbzbto7+
 ozmtN0W80E8n4oQq008j8htpgIhDV91UjF5m33qB82uSqKihHPPTsVcbeg5nZwh2
 ti5g/a1jk94=
 =JgQo
 -----END PGP SIGNATURE-----

Merge tag 'x86-core-2025-05-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull core x86 updates from Ingo Molnar:
 "Boot code changes:

   - A large series of changes to reorganize the x86 boot code into a
     better isolated and easier to maintain base of PIC early startup
     code in arch/x86/boot/startup/, by Ard Biesheuvel.

     Motivation & background:

  	| Since commit
  	|
  	|    c88d71508e ("x86/boot/64: Rewrite startup_64() in C")
  	|
  	| dated Jun 6 2017, we have been using C code on the boot path in a way
  	| that is not supported by the toolchain, i.e., to execute non-PIC C
  	| code from a mapping of memory that is different from the one provided
  	| to the linker. It should have been obvious at the time that this was a
  	| bad idea, given the need to sprinkle fixup_pointer() calls left and
  	| right to manipulate global variables (including non-pointer variables)
  	| without crashing.
  	|
  	| This C startup code has been expanding, and in particular, the SEV-SNP
  	| startup code has been expanding over the past couple of years, and
  	| grown many of these warts, where the C code needs to use special
  	| annotations or helpers to access global objects.

     This tree includes the first phase of this work-in-progress x86
     boot code reorganization.

  Scalability enhancements and micro-optimizations:

   - Improve code-patching scalability (Eric Dumazet)

   - Remove MFENCEs for X86_BUG_CLFLUSH_MONITOR (Andrew Cooper)

  CPU features enumeration updates:

   - Thorough reorganization and cleanup of CPUID parsing APIs (Ahmed S.
     Darwish)

   - Fix, refactor and clean up the cacheinfo code (Ahmed S. Darwish,
     Thomas Gleixner)

   - Update CPUID bitfields to x86-cpuid-db v2.3 (Ahmed S. Darwish)

  Memory management changes:

   - Allow temporary MMs when IRQs are on (Andy Lutomirski)

   - Opt-in to IRQs-off activate_mm() (Andy Lutomirski)

   - Simplify choose_new_asid() and generate better code (Borislav
     Petkov)

   - Simplify 32-bit PAE page table handling (Dave Hansen)

   - Always use dynamic memory layout (Kirill A. Shutemov)

   - Make SPARSEMEM_VMEMMAP the only memory model (Kirill A. Shutemov)

   - Make 5-level paging support unconditional (Kirill A. Shutemov)

   - Stop prefetching current->mm->mmap_lock on page faults (Mateusz
     Guzik)

   - Predict valid_user_address() returning true (Mateusz Guzik)

   - Consolidate initmem_init() (Mike Rapoport)

  FPU support and vector computing:

   - Enable Intel APX support (Chang S. Bae)

   - Reorgnize and clean up the xstate code (Chang S. Bae)

   - Make task_struct::thread constant size (Ingo Molnar)

   - Restore fpu_thread_struct_whitelist() to fix
     CONFIG_HARDENED_USERCOPY=y (Kees Cook)

   - Simplify the switch_fpu_prepare() + switch_fpu_finish() logic (Oleg
     Nesterov)

   - Always preserve non-user xfeatures/flags in __state_perm (Sean
     Christopherson)

  Microcode loader changes:

   - Help users notice when running old Intel microcode (Dave Hansen)

   - AMD: Do not return error when microcode update is not necessary
     (Annie Li)

   - AMD: Clean the cache if update did not load microcode (Boris
     Ostrovsky)

  Code patching (alternatives) changes:

   - Simplify, reorganize and clean up the x86 text-patching code (Ingo
     Molnar)

   - Make smp_text_poke_batch_process() subsume
     smp_text_poke_batch_finish() (Nikolay Borisov)

   - Refactor the {,un}use_temporary_mm() code (Peter Zijlstra)

  Debugging support:

   - Add early IDT and GDT loading to debug relocate_kernel() bugs
     (David Woodhouse)

   - Print the reason for the last reset on modern AMD CPUs (Yazen
     Ghannam)

   - Add AMD Zen debugging document (Mario Limonciello)

   - Fix opcode map (!REX2) superscript tags (Masami Hiramatsu)

   - Stop decoding i64 instructions in x86-64 mode at opcode (Masami
     Hiramatsu)

  CPU bugs and bug mitigations:

   - Remove X86_BUG_MMIO_UNKNOWN (Borislav Petkov)

   - Fix SRSO reporting on Zen1/2 with SMT disabled (Borislav Petkov)

   - Restructure and harmonize the various CPU bug mitigation methods
     (David Kaplan)

   - Fix spectre_v2 mitigation default on Intel (Pawan Gupta)

  MSR API:

   - Large MSR code and API cleanup (Xin Li)

   - In-kernel MSR API type cleanups and renames (Ingo Molnar)

  PKEYS:

   - Simplify PKRU update in signal frame (Chang S. Bae)

  NMI handling code:

   - Clean up, refactor and simplify the NMI handling code (Sohil Mehta)

   - Improve NMI duration console printouts (Sohil Mehta)

  Paravirt guests interface:

   - Restrict PARAVIRT_XXL to 64-bit only (Kirill A. Shutemov)

  SEV support:

   - Share the sev_secrets_pa value again (Tom Lendacky)

  x86 platform changes:

   - Introduce the <asm/amd/> header namespace (Ingo Molnar)

   - i2c: piix4, x86/platform: Move the SB800 PIIX4 FCH definitions to
     <asm/amd/fch.h> (Mario Limonciello)

  Fixes and cleanups:

   - x86 assembly code cleanups and fixes (Uros Bizjak)

   - Misc fixes and cleanups (Andi Kleen, Andy Lutomirski, Andy
     Shevchenko, Ard Biesheuvel, Bagas Sanjaya, Baoquan He, Borislav
     Petkov, Chang S. Bae, Chao Gao, Dan Williams, Dave Hansen, David
     Kaplan, David Woodhouse, Eric Biggers, Ingo Molnar, Josh Poimboeuf,
     Juergen Gross, Malaya Kumar Rout, Mario Limonciello, Nathan
     Chancellor, Oleg Nesterov, Pawan Gupta, Peter Zijlstra, Shivank
     Garg, Sohil Mehta, Thomas Gleixner, Uros Bizjak, Xin Li)"

* tag 'x86-core-2025-05-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (331 commits)
  x86/bugs: Fix spectre_v2 mitigation default on Intel
  x86/bugs: Restructure ITS mitigation
  x86/xen/msr: Fix uninitialized variable 'err'
  x86/msr: Remove a superfluous inclusion of <asm/asm.h>
  x86/paravirt: Restrict PARAVIRT_XXL to 64-bit only
  x86/mm/64: Make 5-level paging support unconditional
  x86/mm/64: Make SPARSEMEM_VMEMMAP the only memory model
  x86/mm/64: Always use dynamic memory layout
  x86/bugs: Fix indentation due to ITS merge
  x86/cpuid: Rename hypervisor_cpuid_base()/for_each_possible_hypervisor_cpuid_base() to cpuid_base_hypervisor()/for_each_possible_cpuid_base_hypervisor()
  x86/cpu/intel: Rename CPUID(0x2) descriptors iterator parameter
  x86/cacheinfo: Rename CPUID(0x2) descriptors iterator parameter
  x86/cpuid: Rename cpuid_get_leaf_0x2_regs() to cpuid_leaf_0x2()
  x86/cpuid: Rename have_cpuid_p() to cpuid_feature()
  x86/cpuid: Set <asm/cpuid/api.h> as the main CPUID header
  x86/cpuid: Move CPUID(0x2) APIs into <cpuid/api.h>
  x86/msr: Add rdmsrl_on_cpu() compatibility wrapper
  x86/mm: Fix kernel-doc descriptions of various pgtable methods
  x86/asm-offsets: Export certain 'struct cpuinfo_x86' fields for 64-bit asm use too
  x86/boot: Defer initialization of VM space related global variables
  ...
2025-05-26 16:04:17 -07:00
Linus Torvalds
ddddf9d64f Performance events updates for v6.16:
Core & generic-arch updates:
 
  - Add support for dynamic constraints and propagate it to
    the Intel driver (Kan Liang)
 
  - Fix & enhance driver-specific throttling support (Kan Liang)
 
  - Record sample last_period before updating on the
    x86 and PowerPC platforms (Mark Barnett)
 
  - Make perf_pmu_unregister() usable (Peter Zijlstra)
 
  - Unify perf_event_free_task() / perf_event_exit_task_context()
    (Peter Zijlstra)
 
  - Simplify perf_event_release_kernel() and perf_event_free_task()
    (Peter Zijlstra)
 
  - Allocate non-contiguous AUX pages by default (Yabin Cui)
 
 Uprobes updates:
 
  - Add support to emulate NOP instructions (Jiri Olsa)
 
  - selftests/bpf: Add 5-byte NOP uprobe trigger benchmark (Jiri Olsa)
 
 x86 Intel PMU enhancements:
 
  - Support Intel Auto Counter Reload [ACR] (Kan Liang)
 
  - Add PMU support for Clearwater Forest (Dapeng Mi)
 
  - Arch-PEBS preparatory changes: (Dapeng Mi)
 
    - Parse CPUID archPerfmonExt leaves for non-hybrid CPUs
    - Decouple BTS initialization from PEBS initialization
    - Introduce pairs of PEBS static calls
 
 x86 AMD PMU enhancements:
 
  - Use hrtimer for handling overflows in the AMD uncore driver
    (Sandipan Das)
 
  - Prevent UMC counters from saturating (Sandipan Das)
 
 Fixes and cleanups:
 
  - Fix put_ctx() ordering (Frederic Weisbecker)
 
  - Fix irq work dereferencing garbage (Frederic Weisbecker)
 
  - Misc fixes and cleanups (Changbin Du, Frederic Weisbecker,
    Ian Rogers, Ingo Molnar, Kan Liang, Peter Zijlstra, Qing Wang,
    Sandipan Das, Thorsten Blum)
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
 -----BEGIN PGP SIGNATURE-----
 
 iQJFBAABCgAvFiEEBpT5eoXrXCwVQwEKEnMQ0APhK1gFAmgy4zoRHG1pbmdvQGtl
 cm5lbC5vcmcACgkQEnMQ0APhK1j6QRAAvQ4GBPrdJLb8oXkLjCmWSp9PfM1h2IW0
 reUrcV0BPRAwz4T60QEU2KyiEjvKxNghR6bNw4i3slAZ8EFwP9eWE/0ZYOo5+W/N
 wv8vsopv/oZd2L2G5TgxDJf+tLPkqnTvp651LmGAbquPFONN1lsya9UHVPnt2qtv
 fvFhjW6D828VoevRcUCsdoEUNlFDkUYQ2c3M1y5H2AI6ILDVxLsp5uYtuVUP+2lQ
 7UI/elqRIIblTGT7G9LvTGiXZMm8T58fe1OOLekT6NdweJ3XEt1kMdFo/SCRYfzU
 eDVVVLSextZfzBXNPtAEAlM3aSgd8+4m5sACiD1EeOUNjo5J9Sj1OOCa+bZGF/Rl
 XNv5Kcp6Kh1T4N5lio8DE/NabmHDqDMbUGfud+VTS8uLLku4kuOWNMxJTD1nQ2Zz
 BMfJhP89G9Vk07F9fOGuG1N6mKhIKNOgXh0S92tB7XDHcdJegueu2xh4ZszBL1QK
 JVXa4DbnDj+y0LvnV+A5Z6VILr5RiCAipDb9ascByPja6BbN10Nf9Aj4nWwRTwbO
 ut5OK/fDKmSjEHn1+a42d4iRxdIXIWhXCyxEhH+hJXEFx9htbQ3oAbXAEedeJTlT
 g9QYGAjL96QEd0CqviorV8KyU59nVkEPoLVCumXBZ0WWhNwU6GdAmsW1hLfxQdLN
 sp+XHhfxf8M=
 =tPRs
 -----END PGP SIGNATURE-----

Merge tag 'perf-core-2025-05-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull perf events updates from Ingo Molnar:
 "Core & generic-arch updates:

   - Add support for dynamic constraints and propagate it to the Intel
     driver (Kan Liang)

   - Fix & enhance driver-specific throttling support (Kan Liang)

   - Record sample last_period before updating on the x86 and PowerPC
     platforms (Mark Barnett)

   - Make perf_pmu_unregister() usable (Peter Zijlstra)

   - Unify perf_event_free_task() / perf_event_exit_task_context()
     (Peter Zijlstra)

   - Simplify perf_event_release_kernel() and perf_event_free_task()
     (Peter Zijlstra)

   - Allocate non-contiguous AUX pages by default (Yabin Cui)

  Uprobes updates:

   - Add support to emulate NOP instructions (Jiri Olsa)

   - selftests/bpf: Add 5-byte NOP uprobe trigger benchmark (Jiri Olsa)

  x86 Intel PMU enhancements:

   - Support Intel Auto Counter Reload [ACR] (Kan Liang)

   - Add PMU support for Clearwater Forest (Dapeng Mi)

   - Arch-PEBS preparatory changes: (Dapeng Mi)
       - Parse CPUID archPerfmonExt leaves for non-hybrid CPUs
       - Decouple BTS initialization from PEBS initialization
       - Introduce pairs of PEBS static calls

  x86 AMD PMU enhancements:

   - Use hrtimer for handling overflows in the AMD uncore driver
     (Sandipan Das)

   - Prevent UMC counters from saturating (Sandipan Das)

  Fixes and cleanups:

   - Fix put_ctx() ordering (Frederic Weisbecker)

   - Fix irq work dereferencing garbage (Frederic Weisbecker)

   - Misc fixes and cleanups (Changbin Du, Frederic Weisbecker, Ian
     Rogers, Ingo Molnar, Kan Liang, Peter Zijlstra, Qing Wang, Sandipan
     Das, Thorsten Blum)"

* tag 'perf-core-2025-05-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (60 commits)
  perf/headers: Clean up <linux/perf_event.h> a bit
  perf/uapi: Clean up <uapi/linux/perf_event.h> a bit
  perf/uapi: Fix PERF_RECORD_SAMPLE comments in <uapi/linux/perf_event.h>
  mips/perf: Remove driver-specific throttle support
  xtensa/perf: Remove driver-specific throttle support
  sparc/perf: Remove driver-specific throttle support
  loongarch/perf: Remove driver-specific throttle support
  csky/perf: Remove driver-specific throttle support
  arc/perf: Remove driver-specific throttle support
  alpha/perf: Remove driver-specific throttle support
  perf/apple_m1: Remove driver-specific throttle support
  perf/arm: Remove driver-specific throttle support
  s390/perf: Remove driver-specific throttle support
  powerpc/perf: Remove driver-specific throttle support
  perf/x86/zhaoxin: Remove driver-specific throttle support
  perf/x86/amd: Remove driver-specific throttle support
  perf/x86/intel: Remove driver-specific throttle support
  perf: Only dump the throttle log for the leader
  perf: Fix the throttle logic for a group
  perf/core: Add the is_event_in_freq_mode() helper to simplify the code
  ...
2025-05-26 15:40:23 -07:00
Linus Torvalds
eaed94d1f6 Scheduler updates for v6.16:
Core & fair scheduler changes:
 
   - Tweak wait_task_inactive() to force dequeue sched_delayed tasks
     (John Stultz)
 
   - Adhere to place_entity() constraints (Peter Zijlstra)
 
   - Allow decaying util_est when util_avg > CPU capacity (Pierre Gondois)
 
   - Fix up wake_up_sync() vs DELAYED_DEQUEUE (Xuewen Yan)
 
 Energy management:
 
   - Introduce sched_update_asym_prefer_cpu() (K Prateek Nayak)
 
   - cpufreq/amd-pstate: Update asym_prefer_cpu when core rankings change
     (K Prateek Nayak)
 
   - Align uclamp and util_est and call before freq update (Xuewen Yan)
 
 CPU isolation:
 
   - Make use of more than one housekeeping CPU (Phil Auld)
 
 RT scheduler:
 
   - Fix race in push_rt_task() (Harshit Agarwal)
 
   - Add kernel cmdline option for rt_group_sched (Michal Koutný)
 
 Scheduler topology support:
 
   - Improve topology_span_sane speed (Steve Wahl)
 
 Scheduler debugging:
 
   - Move and extend the sched_process_exit() tracepoint (Andrii Nakryiko)
 
   - Add RT_GROUP WARN checks for non-root task_groups (Michal Koutný)
 
   - Fix trace_sched_switch(.prev_state) (Peter Zijlstra)
 
   - Untangle cond_resched() and live-patching (Peter Zijlstra)
 
 Fixes and cleanups:
 
   - Misc fixes and cleanups (K Prateek Nayak, Michal Koutný,
     Peter Zijlstra, Xuewen Yan)
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
 -----BEGIN PGP SIGNATURE-----
 
 iQJFBAABCgAvFiEEBpT5eoXrXCwVQwEKEnMQ0APhK1gFAmgy50ARHG1pbmdvQGtl
 cm5lbC5vcmcACgkQEnMQ0APhK1jFQQ/+KXl2XDg1V/VVmMG8GmtDlR29V3M3ricy
 D7/2s0D1Y1ErHb+pRMBG31EubT9/bXjUshWIuuf51DciSLBmpELHxY5J+AevRa0L
 /pHFwSvP6H5pDakI/xZ01FlYt7PxZGs+1m1o2615Mbwq6J2bjZTan54CYzrdpLOy
 Nqb3OT4tSqU1+7SV7hVForBpZp9u3CvVBRt/wE6vcHltW/I486bM8OCOd2XrUlnb
 QoIRliGI9KHpqCpbAeKPRSKXpf9tZv/AijZ+0WUu2yY8iwSN4p3RbbbwdCipjVQj
 w5I5oqKI6cylFfl2dEFWXVO+tLBihs06w8KSQrhYmQ9DUu4RGBVM9ORINGDBPejL
 bvoQh1mAkqvIL+oodujdbMDIqLupvOEtVSvwzR7SJn8BJSB00js88ngCWLjo/CcU
 imLbWy9FSBLvOswLBzQthgAJEj+ejCkOIbcvM2lINWhX/zNsMFaaqYcO1wRunGGR
 SavTI1s+ZksCQY6vCwRkwPrOZjyg91TA/q4FK102fHL1IcthH6xubE4yi4lTIUYs
 L56HuGm8e7Shc8M2Y5rAYsVG3GoIHFLXnptOn2HnCRWaAAJYsBaLUlzoBy9MxCfw
 I2YVDCylkQxevosSi2XxXo3tbM6auISU9SelAT/dAz32V1rsjWQojRJXeGYKIbu7
 KBuN/dLItW0=
 =s/ra
 -----END PGP SIGNATURE-----

Merge tag 'sched-core-2025-05-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull scheduler updates from Ingo Molnar:
 "Core & fair scheduler changes:

   - Tweak wait_task_inactive() to force dequeue sched_delayed tasks
     (John Stultz)

   - Adhere to place_entity() constraints (Peter Zijlstra)

   - Allow decaying util_est when util_avg > CPU capacity (Pierre
     Gondois)

   - Fix up wake_up_sync() vs DELAYED_DEQUEUE (Xuewen Yan)

  Energy management:

   - Introduce sched_update_asym_prefer_cpu() (K Prateek Nayak)

   - cpufreq/amd-pstate: Update asym_prefer_cpu when core rankings
     change (K Prateek Nayak)

   - Align uclamp and util_est and call before freq update (Xuewen Yan)

  CPU isolation:

   - Make use of more than one housekeeping CPU (Phil Auld)

  RT scheduler:

   - Fix race in push_rt_task() (Harshit Agarwal)

   - Add kernel cmdline option for rt_group_sched (Michal Koutný)

  Scheduler topology support:

   - Improve topology_span_sane speed (Steve Wahl)

  Scheduler debugging:

   - Move and extend the sched_process_exit() tracepoint (Andrii
     Nakryiko)

   - Add RT_GROUP WARN checks for non-root task_groups (Michal Koutný)

   - Fix trace_sched_switch(.prev_state) (Peter Zijlstra)

   - Untangle cond_resched() and live-patching (Peter Zijlstra)

  Fixes and cleanups:

   - Misc fixes and cleanups (K Prateek Nayak, Michal Koutný, Peter
     Zijlstra, Xuewen Yan)"

* tag 'sched-core-2025-05-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (26 commits)
  sched/uclamp: Align uclamp and util_est and call before freq update
  sched/util_est: Simplify condition for util_est_{en,de}queue()
  sched/fair: Fixup wake_up_sync() vs DELAYED_DEQUEUE
  sched,livepatch: Untangle cond_resched() and live-patching
  sched/core: Tweak wait_task_inactive() to force dequeue sched_delayed tasks
  sched/fair: Adhere to place_entity() constraints
  sched/debug: Print the local group's asym_prefer_cpu
  cpufreq/amd-pstate: Update asym_prefer_cpu when core rankings change
  sched/topology: Introduce sched_update_asym_prefer_cpu()
  sched/fair: Use READ_ONCE() to read sg->asym_prefer_cpu
  sched/isolation: Make use of more than one housekeeping cpu
  sched/rt: Fix race in push_rt_task
  sched: Add annotations to RT_GROUP_SCHED fields
  sched: Add RT_GROUP WARN checks for non-root task_groups
  sched: Do not construct nor expose RT_GROUP_SCHED structures if disabled
  sched: Bypass bandwitdh checks with runtime disabled RT_GROUP_SCHED
  sched: Skip non-root task_groups with disabled RT_GROUP_SCHED
  sched: Add commadline option for RT_GROUP_SCHED toggling
  sched: Always initialize rt_rq's task_group
  sched: Remove unneeed macro wrap
  ...
2025-05-26 15:19:58 -07:00
Linus Torvalds
3ba121c9f3 objtool changes for v6.15:
- Speed up SHT_GROUP reindexing (Josh Poimboeuf)
 
  - Fix up st_info in COMDAT group section (Rong Xu)
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
 -----BEGIN PGP SIGNATURE-----
 
 iQJFBAABCgAvFiEEBpT5eoXrXCwVQwEKEnMQ0APhK1gFAmgy3XURHG1pbmdvQGtl
 cm5lbC5vcmcACgkQEnMQ0APhK1iIow/7BgUA+vah2719bPl8ET2qkpE51yolc56Z
 8prJT1z5s9eFRakFpVQoj036Iy4O+damzTJxiEfDCXn9bMqCRAZtUNC5xsA0yn4N
 pROlioyPMFaRLjULdA5pO8HLBVh5vOG712q0Pp1+E5JPiy1qHmWq15MgxBR5QY/N
 8AZ9jFnE4xr7kLPnfC1AkCP9CsCcGFJThkkFEiVatBTrn5uDZO0IDdn6rRfoof2T
 BY24eMEXiwBvvtMJ/iMBMm1ZM1cfWZgDal1M8vsrfVsL4b8DERgghP3Pic1NboPB
 6r1syLUGtigP3K6SCtClfEG3sBpxip9rdI5wcivnRUjOwfZXPF4F8VDivyK8XAdz
 Y1E7o6/ZZp49Iku2L6sA8oyDMZ6PaKDH1JOByZ+Oz0/3v5bpXUjLnDSFqLSXldIg
 hU0U1shTc8h3pi1ewEjgsTpKsCfRoeGoihhgguWY8Z5eHQ52T8SdSgHuSI+KJ27m
 TKeqcMdjJmQwUvY6pSUuYlI7Co2PjlGUhDPW93OsGa7gi5qc78yPfYFkn9cvRd/0
 7SR5KFkNd/6KMq+dhZCbwulB7GxFh/8VctTXwzH8ghNa1dGfOjXRDYUOdpZ3ZiEA
 csEB2XKgXvKSTId09SCwS0VE+sq1swVjFGFbkhlD4tSosq+AuF+CwxWD6V/MjuE/
 Dpp1JUBbpJ4=
 =eXgV
 -----END PGP SIGNATURE-----

Merge tag 'objtool-core-2025-05-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull objtool updates from Ingo Molnar:

 - Speed up SHT_GROUP reindexing (Josh Poimboeuf)

 - Fix up st_info in COMDAT group section (Rong Xu)

* tag 'objtool-core-2025-05-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  objtool: Speed up SHT_GROUP reindexing
  objtool: Fix up st_info in COMDAT group section
2025-05-26 15:13:53 -07:00
Linus Torvalds
b3570b00dc Locking changes for v6.16:
Futexes:
 
    - Add support for task local hash maps (Sebastian Andrzej Siewior,
      Peter Zijlstra)
 
    - Implement the FUTEX2_NUMA ABI, which feature extends the futex
      interface to be NUMA-aware. On NUMA-aware futexes a second u32
      word containing the NUMA node is added to after the u32 futex value
      word. (Peter Zijlstra)
 
    - Implement the FUTEX2_MPOL ABI, which feature extends the futex
      interface to be mempolicy-aware as well, to further refine futex
      node mappings and lookups. (Peter Zijlstra)
 
   Locking primitives:
 
    - Misc cleanups (Andy Shevchenko, Borislav Petkov, Colin Ian King,
                     Ingo Molnar, Nam Cao, Peter Zijlstra)
 
   Lockdep:
 
    - Prevent abuse of lockdep subclasses (Waiman Long)
    - Add number of dynamic keys to /proc/lockdep_stats (Waiman Long)
 
 Plus misc cleanups and fixes.
 
 Note that the tree includes the following dependent out-of-subsystem
 changes as well:
 
  - rcuref: Provide rcuref_is_dead()
  - mm: Add vmalloc_huge_node()
  - mm: Add the mmap_read_lock guard to <linux/mmap_lock.h>
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
 -----BEGIN PGP SIGNATURE-----
 
 iQJFBAABCgAvFiEEBpT5eoXrXCwVQwEKEnMQ0APhK1gFAmgy3E8RHG1pbmdvQGtl
 cm5lbC5vcmcACgkQEnMQ0APhK1isNw/9FS6+ZReiV3NLHvhwIw8+6U2vV733wLY+
 mFzDk2CRwv2d6xg+QUrhLNI93i2fZnwNvK1f6LcRZMa1pNmwCcEghKgm0G+fRgbv
 skiGrlkUCoEqsDUxRW++/aTBcMo0vqG3NOObnUOrddG2W9tfrR8jq/EwlzB99dO7
 q8qaBNl9W1vLT3gh9/RPP5uKt0NKIf8ObvsyhWCGaywg81h2lC4AHf0Xlj3ZD95T
 TO5jhUhl/muhYtaqxeYPK0gDtCrgFz8NwZdjKx1nyP7Gbko6+L50AvOVXog0SIAU
 nncftvutGJg2ki7dbSYPDoHQrHO0JsF1vUfVZRjaKFebWpFo2yYdNMbITOeXVhSC
 QSpbH2qvyn21nT/YSj9dottHWBoNYBEgrcSf6DO4g0d8A0Jh7egXjQdA852RpeQ0
 LWGYx4rfiKhnjiXlKKQHrURZkcxxa40o+ls3RfFl2/kWA+7aUybvw6nAeDEkV0oL
 s2U0vZxsY37EPWDm40rTe9r4YpPqcB65i9YIesPzhtbcHJVmN0gts0o5l+x53GhR
 CeftFiiUi2nm6JaT+1wGvBDT3hQ8+NZ8GkPSeA6pEJWE3i4KquZlcBZLOSLZ3k/B
 df58zQi99Yun33is5f1kqDNspqvJOg/1nxUK68PgNSdCMKeuZkJYrcmh/rKNnXSC
 f7M1XHoWFb0=
 =La/x
 -----END PGP SIGNATURE-----

Merge tag 'locking-core-2025-05-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull locking updates from Ingo Molnar:
 "Futexes:

   - Add support for task local hash maps (Sebastian Andrzej Siewior,
     Peter Zijlstra)

   - Implement the FUTEX2_NUMA ABI, which feature extends the futex
     interface to be NUMA-aware. On NUMA-aware futexes a second u32 word
     containing the NUMA node is added to after the u32 futex value word
     (Peter Zijlstra)

   - Implement the FUTEX2_MPOL ABI, which feature extends the futex
     interface to be mempolicy-aware as well, to further refine futex
     node mappings and lookups (Peter Zijlstra)

  Locking primitives:

   - Misc cleanups (Andy Shevchenko, Borislav Petkov, Colin Ian King,
     Ingo Molnar, Nam Cao, Peter Zijlstra)

  Lockdep:

   - Prevent abuse of lockdep subclasses (Waiman Long)

   - Add number of dynamic keys to /proc/lockdep_stats (Waiman Long)

  Plus misc cleanups and fixes"

* tag 'locking-core-2025-05-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (35 commits)
  selftests/futex: Fix spelling mistake "unitiliazed" -> "uninitialized"
  futex: Correct the kernedoc return value for futex_wait_setup().
  tools headers: Synchronize prctl.h ABI header
  futex: Use RCU_INIT_POINTER() in futex_mm_init().
  selftests/futex: Use TAP output in futex_numa_mpol
  selftests/futex: Use TAP output in futex_priv_hash
  futex: Fix kernel-doc comments
  futex: Relax the rcu_assign_pointer() assignment of mm->futex_phash in futex_mm_init()
  futex: Fix outdated comment in struct restart_block
  locking/lockdep: Add number of dynamic keys to /proc/lockdep_stats
  locking/lockdep: Prevent abuse of lockdep subclass
  locking/lockdep: Move hlock_equal() to the respective #ifdeffery
  futex,selftests: Add another FUTEX2_NUMA selftest
  selftests/futex: Add futex_numa_mpol
  selftests/futex: Add futex_priv_hash
  selftests/futex: Build without headers nonsense
  tools/perf: Allow to select the number of hash buckets
  tools headers: Synchronize prctl.h ABI header
  futex: Implement FUTEX2_MPOL
  futex: Implement FUTEX2_NUMA
  ...
2025-05-26 14:42:07 -07:00
Linus Torvalds
3349ada3cf powerpc updates for 6.16
- Support for dynamic preemption
 
  - Migrate powerpc boards GPIO driver to new setter API
 
  - Added new PMU for KVM host-wide measurement
 
  - Enhancement to htmdump driver to support more functions
 
  - Added character device for couple RTAS supported APIs
 
  - Minor fixes and cleanup
 
 Thanks to: Amit Machhiwal, Athira Rajeev, Bagas Sanjaya, Bartosz Golaszewski, Christophe Leroy, Eddie James, Gaurav Batra, Gautam Menghani, Geert Uytterhoeven, Haren Myneni, Hari Bathini, Jiri Slaby (SUSE), Linus Walleij, Michal Suchanek, Naveen N Rao (AMD), Nilay Shroff, Ricardo B. Marlière, Ritesh Harjani (IBM), Sathvika Vasireddy, Shrikanth Hegde, Stephen Rothwell, Sourabh Jain, Thorsten Blum, Vaibhav Jain, Venkat Rao Bagalkote, Viktor Malik
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEEqX2DNAOgU8sBX3pRpnEsdPSHZJQFAmgzykEACgkQpnEsdPSH
 ZJTEIg//a+m4lxMOO5rm6ND2nmp0/fDtC9aBpX/GNH6ZkOJX+aFH1eC0vcXX3guh
 N5dMc9bbOomhDMABWH7fZcs/VCMaSCd+vrg/IulpZmqrLnd+w/qlD9IKbAcQrE7y
 8m/zQ+bwsq7MRVDBHRqEmvqpUVAvAqTtF7iVA5k/YptNHCDjqI8y0/YcDBOmJrsd
 GhbFVWFS95M5TeC4SFRfzr9Tb6GffNMqhZROeJfmzJlwigAztcfw7oNUvFbnexLI
 Vz3Xoflbv6oY1azdq+W9XbUcH+QCG0Ua6nVpRqutzYYFCCnUysv1EujeTGVdoR7v
 KDuzKSPLk6LuJRi8T/nOl2ggUD6zREJ9CE6/uRBntGBt+bl2Zb/yDr8xJ1ELHkdB
 TzPGy6PoJ1lxyvV9clO1TdSBuGYMV/21XK7O5MG7tCSFUCTdAOVp9wbAHOUAU7+Q
 5rvW9yrNhMPcAfWV3uFY3DPVYWnDFxVmsRVL87S3vPsvQm8v63AJYWctmjvqnuQE
 619F13HiS3M4HqcPupKsxV5w/1Yj2+Wz8QKg2umtdBdlSA9fmdtDpsEXh7kJJrah
 mVR9m28ffbEmd1pBaHoUVBT0j1pEQtXXIiKUhEdANfkBfoRIpeROq1VqLLeKos3B
 Dj9KgR+EOqwR0syqkV6AHAaSwqCur1r6ZSkGTA8urC/2HJ/YZC0=
 =dsj5
 -----END PGP SIGNATURE-----

Merge tag 'powerpc-6.16-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc updates from Madhavan Srinivasan:

 - Support for dynamic preemption

 - Migrate powerpc boards GPIO driver to new setter API

 - Added new PMU for KVM host-wide measurement

 - Enhancement to htmdump driver to support more functions

 - Added character device for couple RTAS supported APIs

 - Minor fixes and cleanup

Thanks to Amit Machhiwal, Athira Rajeev, Bagas Sanjaya, Bartosz
Golaszewski, Christophe Leroy, Eddie James, Gaurav Batra, Gautam
Menghani, Geert Uytterhoeven, Haren Myneni, Hari Bathini, Jiri Slaby
(SUSE), Linus Walleij, Michal Suchanek, Naveen N Rao (AMD), Nilay
Shroff, Ricardo B. Marlière, Ritesh Harjani (IBM), Sathvika Vasireddy,
Shrikanth Hegde, Stephen Rothwell, Sourabh Jain, Thorsten Blum, Vaibhav
Jain, Venkat Rao Bagalkote, and Viktor Malik.

* tag 'powerpc-6.16-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (52 commits)
  MAINTAINERS: powerpc: Remove myself as a reviewer
  powerpc/iommu: Use str_disabled_enabled() helper
  powerpc/powermac: Use str_enabled_disabled() and str_on_off() helpers
  powerpc/mm/fault: Use str_write_read() helper function
  powerpc: Replace strcpy() with strscpy() in proc_ppc64_init()
  powerpc/pseries/iommu: Fix kmemleak in TCE table userspace view
  powerpc/kernel: Fix ppc_save_regs inclusion in build
  powerpc: Transliterate author name and remove FIXME
  powerpc/pseries/htmdump: Include header file to get is_kvm_guest() definition
  KVM: PPC: Book3S HV: Fix IRQ map warnings with XICS on pSeries KVM Guest
  powerpc/8xx: Reduce alignment constraint for kernel memory
  powerpc/boot: Fix build with gcc 15
  powerpc/pseries/htmdump: Add documentation for H_HTM debugfs interface
  powerpc/pseries/htmdump: Add htm capabilities support to htmdump module
  powerpc/pseries/htmdump: Add htm flags support to htmdump module
  powerpc/pseries/htmdump: Add htm setup support to htmdump module
  powerpc/pseries/htmdump: Add htm info support to htmdump module
  powerpc/pseries/htmdump: Add htm status support to htmdump module
  powerpc/pseries/htmdump: Add htm start support to htmdump module
  powerpc/pseries/htmdump: Add htm configure support to htmdump module
  ...
2025-05-26 14:38:57 -07:00
Linus Torvalds
d8cb068359 s390 updates for 6.16 merge window
- Large rework of the protected key crypto code to allow for asynchronous
   handling without memory allocation
 
 - Speed up system call entry/exit path by re-implementing lazy ASCE
   handling
 
 - Add module autoload support for the diag288_wdt watchdog device driver
 
 - Get rid of s390 specific strcpy() and strncpy() implementations, and
   switch all remaining users to strscpy() when possible
 
 - Various other small fixes and improvements
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEECMNfWEw3SLnmiLkZIg7DeRspbsIFAmgwuaIACgkQIg7DeRsp
 bsJ+xA//VTVWo15XHqX6xuJOSGSjwE7BbyA2RBNoIK+qH2PqCRvwvJU+QUcmjiKF
 v+GHOL5GGypKneEVjHCB4xTlKeBPt61yf9/dmTbE4K8KD/3olpHcC6BY62VJiet1
 hDd6Tx9JT3TmjiTV+BanJ5KdiioUxc7jjJ2etMpQkCsHwAZlBtJ+yK+P/IoSI2kP
 80hhNPHvlBadd36ke+Ell95TJBoxhQkKPX/u8ryIKybCvUf4ybsoEaYSPJv8/2I8
 G4IqhTQ0Ft5BcO0g2gcfkpU+8HUtrqhjIDDDhy2h42wuWXsE2Jn3/PieNJUybtwA
 QdsAcN7P85a1TX2L7e4cEM9LEeIk15syZ8mUDKl6H69UHz4M8VNjMO8XfPpFD2ml
 5xCPp7D+RcvUkdnjmz0jLx18mgrF9xjTTqrhYwcP2PWtANvf2m602ElEUlIWuRpI
 Mew/wgCfSdqKsYEbPenvfT+XTd62+hMdo3U3dwZ6OZlKwVXNTk5EUXe3UgMDkKdO
 37OmAh5N2DcYwtPtL9vtl1CLguVJD+FXRnB/veHLCg25+OO/G4IrobySOjI7K0m7
 C48Z5lUjxVJiRjKe35XXwBjuEaN+/TctK1kH3RfCDQGvBGBNoPyvC+L4kOprsbce
 1Lnc7/pFCKdP5y90sJMomMdJCyP5BHKiJvHHWTr8maeslfxd9Vw=
 =lFqh
 -----END PGP SIGNATURE-----

Merge tag 's390-6.16-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Pull s390 updates from Heiko Carstens:

 - Large rework of the protected key crypto code to allow for
   asynchronous handling without memory allocation

 - Speed up system call entry/exit path by re-implementing lazy ASCE
   handling

 - Add module autoload support for the diag288_wdt watchdog device
   driver

 - Get rid of s390 specific strcpy() and strncpy() implementations, and
   switch all remaining users to strscpy() when possible

 - Various other small fixes and improvements

* tag 's390-6.16-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (51 commits)
  s390/pci: Serialize device addition and removal
  s390/pci: Allow re-add of a reserved but not yet removed device
  s390/pci: Prevent self deletion in disable_slot()
  s390/pci: Remove redundant bus removal and disable from zpci_release_device()
  s390/crypto: Extend protected key conversion retry loop
  s390/pci: Fix __pcilg_mio_inuser() inline assembly
  s390/ptrace: Always inline regs_get_kernel_stack_nth() and regs_get_register()
  s390/thread_info: Cleanup header includes
  s390/extmem: Add workaround for DCSS unload diag
  s390/crypto: Rework protected key AES for true asynch support
  s390/cpacf: Rework cpacf_pcc() to return condition code
  s390/mm: Fix potential use-after-free in __crst_table_upgrade()
  s390/mm: Add mmap_assert_write_locked() check to crst_table_upgrade()
  s390/string: Remove strcpy() implementation
  s390/con3270: Use strscpy() instead of strcpy()
  s390/boot: Use strspcy() instead of strcpy()
  s390: Simple strcpy() to strscpy() conversions
  s390/pkey/crypto: Introduce xflags param for pkey in-kernel API
  s390/pkey: Provide and pass xflags within pkey and zcrypt layers
  s390/uv: Remove uv_get_secret_metadata function
  ...
2025-05-26 14:36:05 -07:00
Linus Torvalds
ba45037098 linux_kselftest-kunit-6.16-rc1
- Enables qemu_config for riscv32, sparc 64-bit, PowerPC 32-bit BE and
   64-bit LE.
 - Enables CONFIG_SPARC32 to clearly differentiate between sparc 32-bit
   and 64-bit configurations.
 - Enables CONFIG_CPU_BIG_ENDIAN to clearly differentiate between powerpc
   LE and BE configurations.
 - Add feature to list available architectures to kunit tool.
 - Fixes to bugs and changes to documentation.
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEPZKym/RZuOCGeA/kCwJExA0NQxwFAmgwylUACgkQCwJExA0N
 Qxz1/w/+NVxyC80omepHOxoi8Y+j5vWSlQ3S4n+HThyeb4srJlvJuidZN+zrRIEU
 QLKo4edUDa25I+JkXnnw/8gLG1000PESM/VjC6NIzhCrEHc/cX/WS9OlwbR5JkpW
 wOlxju3vWYrfy5i+LSYiH+v822WlSZsznH9AM9w+ws4FWoRNN+7LiEitj2LElrWI
 XHpEYDsBhePu2cFQgAdHaQ5YcMmG64KqeX5Xj+cGjtURciijQDxVuX5k03n0qkbn
 YrH4U0it8ZqxJTImpExnqlP2G8uZS72hE91vK0hwW9oZ+/k9vVeBQWJ13JvNKveb
 +zHGUimJ0n6d5HB5ZFaUAazkbZHKq7mWPp86lBYNiRXsseDwwqDSva5tfUxzXGQP
 MNDK2wrHusH0beRdzdlPjynJABxiOnczmBOAj/Y6t+ZgC2D8BHvyvj+Pecdz3Tr0
 YPLgpY72LqxTKDCvOf91IeT8EFaAjyGfVcN6SvUJ/zjPc7UcopM2DEQvlSZcU/Ac
 EAzgWmFfkwowSWwr8Q4GOXuKzkMj65QhouJrSCoBjuHQuUxa2MZxAbv5snPmSLs0
 635MdPU9uPAEvZKJTbVlXKBMCM3FrS8Buy+dHFEuUiUy0i3PndV5aJUQpIxwM/Du
 +DjQkREy6wsIHXSTu4lm+zoZ0yVKQdEZJgsYjY+JfRQ25cLWgiQ=
 =32OH
 -----END PGP SIGNATURE-----

Merge tag 'linux_kselftest-kunit-6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

Pull kunit updates from Shuah Khan:

 - Enable qemu_config for riscv32, sparc 64-bit, PowerPC 32-bit BE and
   64-bit LE

 - Enable CONFIG_SPARC32 to clearly differentiate between sparc 32-bit
   and 64-bit configurations

 - Enable CONFIG_CPU_BIG_ENDIAN to clearly differentiate between powerpc
   LE and BE configurations

 - Add feature to list available architectures to kunit tool

 - Fixes to bugs and changes to documentation

* tag 'linux_kselftest-kunit-6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  kunit: Fix wrong parameter to kunit_deactivate_static_stub()
  kunit: tool: add test counts to JSON output
  Documentation: kunit: improve example on testing static functions
  kunit: executor: Remove const from kunit_filter_suites() allocation type
  kunit: qemu_configs: Disable faulting tests on 32-bit SPARC
  kunit: qemu_configs: Add 64-bit SPARC configuration
  kunit: qemu_configs: sparc: Explicitly enable CONFIG_SPARC32=y
  kunit: qemu_configs: Add PowerPC 32-bit BE and 64-bit LE
  kunit: qemu_configs: powerpc: Explicitly enable CONFIG_CPU_BIG_ENDIAN=y
  kunit: tool: Implement listing of available architectures
  kunit: qemu_configs: Add riscv32 config
  kunit: configs: Enable CONFIG_INIT_STACK_ALL_PATTERN in all_tests
2025-05-26 14:29:44 -07:00
Linus Torvalds
2d2435e1c8 linux_kselftest-next-6.16-rc1
-- Fixes
    - cpufreq test to not double suspend in rtcwake case.
    - compile error in pid_namespace test.
    - run_kselftest.sh to use readlink if realpath is not available.
    - cpufreq basic read and update testcases.
    - ftrace to add poll to a gen_file so test can find it at run-time.
    - spelling errors in perf_events test.
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEPZKym/RZuOCGeA/kCwJExA0NQxwFAmgw1J8ACgkQCwJExA0N
 QxyHxg//Um5AMX2oPocPfKTctrvxgwdu9dsk1Cm1DfXwtaH6BZ2R34+fqlkNpBBO
 nRKhF17ArTslRNjTlnDZ/nh+7Pg7AU/ikyahT607div9DEQM4bXhuIBjd4KDKANK
 KlHrlbfP5TArGx81+OzuiRvLhVBO8JN5O5G9EtY1/NU5p6EhMYAt03n89/OQLe1T
 Lr3NIHsLOeQSk+jNW4mxAXRSJ0siQBrYls4SeeNKd+B/7gRHBVD7IrGXc6ruHMoB
 8DJDXgSjYrRXy3Do6jYhFvIGHap0pELYN3FpluEU5uW+K+CJuLWQWI1O6/pjIpc9
 Zk/S2JI8yg+6PMzLMvy1YtcUIM1oSV8wx9uWqR5thyFzJdeMcP5k+yXP6ErbHWTB
 ncSlqzEe88pI9ywxmiaqiK0Jf+IBArW1agcCDkORpJ2KCz5GeZU7wGPYH/Ohn8Y4
 7Ooqxb4jH5ZBofvSAM+mEjmPypS7VhQRa8pU0Ied+O79c+wyiK2su5u0pGpwZeW/
 4X2Q393OhT9g8aI2ZFsQYOYLTQuPnrbLQhyg7XqcmkZb5vAwVK8GNKaGNjb+qhz4
 sF1xA5ySRObj+5MHcR+JFtYKoPoyJVzkOblwvugLuAE8EGTlRIxXF5hJv/f/U/RD
 OE6u3dJX8O0Qa9ZJKX3b5Rt+qEG228/VxUQ3qILv5ikWnqkVL3w=
 =9kTs
 -----END PGP SIGNATURE-----

Merge tag 'linux_kselftest-next-6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

Pull Kselftest updates from Shuah Khan:
 "Fixes:

   - cpufreq test to not double suspend in rtcwake case

   - compile error in pid_namespace test

   - run_kselftest.sh to use readlink if realpath is not available

   - cpufreq basic read and update testcases

   - ftrace to add poll to a gen_file so test can find it at run-time

   - spelling errors in perf_events test"

* tag 'linux_kselftest-next-6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  selftests/run_kselftest.sh: Use readlink if realpath is not available
  selftests/timens: timerfd: Use correct clockid type in tclock_gettime()
  selftests/timens: Make run_tests() functions static
  selftests/timens: Print TAP headers
  selftests: pid_namespace: add missing sys/mount.h include in pid_max.c
  kselftest: cpufreq: Get rid of double suspend in rtcwake case
  selftests/cpufreq: Fix cpufreq basic read and update testcases
  selftests/ftrace: Convert poll to a gen_file
  selftests/perf_events: Fix spelling mistake "sycnhronize" -> "synchronize"
2025-05-26 14:25:23 -07:00
Linus Torvalds
07046958f6 RCU pull request for v6.16
Summary of changes:
 - Removed swake_up_one_online() workaround
 - Reverted an incorrect rcuog wake-up fix from offline softirq
 - Rust RCU Guard methods marked as inline
 - Updated MAINTAINERS with Joel’s and Zqiang's new email address
 - Replaced magic constant in rcu_seq_done_exact() with named constant
 - Added warning mechanism to validate rcu_seq_done_exact()
 - Switched SRCU polling API to use rcu_seq_done_exact()
 - Commented on redundant delta check in rcu_seq_done_exact()
 - Made ->gpwrap tests in rcutorture more frequent
 - Fixed reuse of ARM64 images in rcutorture
 - rcutorture improved to check Kconfig and reader conflict handling
 - Extracted logic from rcu_torture_one_read() for clarity
 - Updated LWN RCU API documentation links
 - Enabled --do-rt in torture.sh for CONFIG_PREEMPT_RT
 - Added tests for SRCU up/down reader primitives
 - Added comments and delays checks in rcutorture
 - Deprecated srcu_read_lock_lite() and srcu_read_unlock_lite() via checkpatch
 - Added --do-normal and --do-no-normal to torture.sh
 - Added RCU Rust binding tests to torture.sh
 - Reduced CPU overcommit and removed MAXSMP/CPUMASK_OFFSTACK in TREE01
 - Replaced kmalloc() with kcalloc() in rcuscale
 - Refined listRCU example code for stale data elimination
 - Fixed hardirq count bug for x86 in cpu_stall_cputime
 - Added safety checks in rcu/nocb for offloaded rdp access
 - Other miscellaneous changes
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEcoCIrlGe4gjE06JJqA4nf2o45hAFAmgoF5oACgkQqA4nf2o4
 5hDvVw//TNsJ/g0HTMu02uXMmtFIrgvpTnH7OEGJ+2p/KErrmWYsBJQw41ueLAQL
 Drtq3q9888UFF5LLA43HC88DFmT9uV8V8TmmURH+pZWdmJY1Ekn8UBSBhDPGGpC5
 sGIO2jJKjHN8G7fyJKoPtL9jxKSulHF/XQTIL2pP23jopAIwosoCHVAwGvnGVvBC
 smXfMSu+bd3IifNFroodsqjVXgnNQwWUNboOkz0KfkiiosgZsWWW8DaM3NGjdp+C
 tUHLs1zfC6sgJUjdpokTE3TcNudlMgVlB2Quj5jhh1YvsvedgIJXl4wpR6JVutyN
 F9awKt1AZkyZ+cTp+JpohaWaN9aKfNNG7jZ+rxQ0VcuRh35wmBJtiWNjEtJ38R82
 kTC1RI7MEus+6OZRt92jv5TNSa9t3wHbi5fBjNRiQ8PYq5cibZy7Lyrj2JOK7Zqs
 pgmdUnhQH2Uhf52b+clG5hWO55gEtACY8pin6kNewClcRtz04Jew7gkiYDGka4F4
 EXbuDHSWi25eSb3FzT2BqR72OZcJ0kv747OTp+2yTv2TaBA5p+OD8hvL/WbWC2Ok
 DK1YQ4RgEerTSZ4PbgPtWkNnlf6xjdWBaYNwmo+G/DgfjPoTOy1Jp73Z4b1AqSB5
 IPEQy1d/799QgGTYkbrvRtvWHg8yfOMz3ByZoHg31rafr0AsrXM=
 =6mun
 -----END PGP SIGNATURE-----

Merge tag 'next.2025.05.17a' of git://git.kernel.org/pub/scm/linux/kernel/git/rcu/linux

Pull RCU updates from Joel Fernandes:
 - Removed swake_up_one_online() workaround
 - Reverted an incorrect rcuog wake-up fix from offline softirq
 - Rust RCU Guard methods marked as inline
 - Updated MAINTAINERS with Joel’s and Zqiang's new email address
 - Replaced magic constant in rcu_seq_done_exact() with named constant
 - Added warning mechanism to validate rcu_seq_done_exact()
 - Switched SRCU polling API to use rcu_seq_done_exact()
 - Commented on redundant delta check in rcu_seq_done_exact()
 - Made ->gpwrap tests in rcutorture more frequent
 - Fixed reuse of ARM64 images in rcutorture
 - rcutorture improved to check Kconfig and reader conflict handling
 - Extracted logic from rcu_torture_one_read() for clarity
 - Updated LWN RCU API documentation links
 - Enabled --do-rt in torture.sh for CONFIG_PREEMPT_RT
 - Added tests for SRCU up/down reader primitives
 - Added comments and delays checks in rcutorture
 - Deprecated srcu_read_lock_lite() and srcu_read_unlock_lite() via checkpatch
 - Added --do-normal and --do-no-normal to torture.sh
 - Added RCU Rust binding tests to torture.sh
 - Reduced CPU overcommit and removed MAXSMP/CPUMASK_OFFSTACK in TREE01
 - Replaced kmalloc() with kcalloc() in rcuscale
 - Refined listRCU example code for stale data elimination
 - Fixed hardirq count bug for x86 in cpu_stall_cputime
 - Added safety checks in rcu/nocb for offloaded rdp access
 - Other miscellaneous changes

* tag 'next.2025.05.17a' of git://git.kernel.org/pub/scm/linux/kernel/git/rcu/linux: (27 commits)
  rcutorture: Fix issue with re-using old images on ARM64
  rcutorture: Remove MAXSMP and CPUMASK_OFFSTACK from TREE01
  rcutorture: Reduce TREE01 CPU overcommit
  torture: Check for "Call trace:" as well as "Call Trace:"
  rcutorture: Perform more frequent testing of ->gpwrap
  torture: Add testing of RCU's Rust bindings to torture.sh
  torture: Add --do-{,no-}normal to torture.sh
  checkpatch: Deprecate srcu_read_lock_lite() and srcu_read_unlock_lite()
  rcutorture: Comment invocations of tick_dep_set_task()
  rcu/nocb: Add Safe checks for access offloaded rdp
  rcuscale: using kcalloc() to relpace kmalloc()
  doc/RCU/listRCU: refine example code for eliminating stale data
  doc: Update LWN RCU API links in whatisRCU.rst
  Revert "rcu/nocb: Fix rcuog wake-up from offline softirq"
  rust: sync: rcu: Mark Guard methods as inline
  rcu/cpu_stall_cputime: fix the hardirq count for x86 architecture
  rcu: Remove swake_up_one_online() bandaid
  MAINTAINERS: Update Zqiang's email address
  rcutorture: Make torture.sh --do-rt use CONFIG_PREEMPT_RT
  srcu: Use rcu_seq_done_exact() for polling API
  ...
2025-05-26 14:20:50 -07:00
Linus Torvalds
66fd704da4 Hi,
This is only a small pull request with fixes, as possible features moved
 to +1 release.
 
 BR, Jarkko
 -----BEGIN PGP SIGNATURE-----
 
 iHUEABYKAB0WIQRE6pSOnaBC00OEHEIaerohdGur0gUCaDDNEgAKCRAaerohdGur
 0n1MAPwNIwmLrw+zBy/iCTlx8msGDpsPdMLc68ZOccnpN/e9fwD/Q0PH5RkWcmB4
 ROHM8lljPg34RU46KyvXfZsgoCDoCwE=
 =iJcd
 -----END PGP SIGNATURE-----

Merge tag 'tpmdd-next-6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd

Pull tpm updates from Jarkko Sakkinen:
 "This is only a small pull request with fixes, as possible features
  moved to +1 release"

* tag 'tpmdd-next-6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd:
  tpm_crb: ffa_tpm: fix/update comments describing the CRB over FFA ABI
  tpm_crb_ffa: use dev_xx() macro to print log
  tpm_ffa_crb: access tpm service over FF-A direct message request v2
  tpm: remove kmalloc failure error message
2025-05-26 14:12:31 -07:00
Linus Torvalds
14418ddcc2 This update includes the following changes:
API:
 
 - Fix memcpy_sglist to handle partially overlapping SG lists.
 - Use memcpy_sglist to replace null skcipher.
 - Rename CRYPTO_TESTS to CRYPTO_BENCHMARK.
 - Flip CRYPTO_MANAGER_DISABLE_TEST into CRYPTO_SELFTESTS.
 - Hide CRYPTO_MANAGER.
 - Add delayed freeing of driver crypto_alg structures.
 
 Compression:
 
 - Allocate large buffers on first use instead of initialisation in scomp.
 - Drop destination linearisation buffer in scomp.
 - Move scomp stream allocation into acomp.
 - Add acomp scatter-gather walker.
 - Remove request chaining.
 - Add optional async request allocation.
 
 Hashing:
 
 - Remove request chaining.
 - Add optional async request allocation.
 - Move partial block handling into API.
 - Add ahash support to hmac.
 - Fix shash documentation to disallow usage in hard IRQs.
 
 Algorithms:
 
 - Remove unnecessary SIMD fallback code on x86 and arm/arm64.
 - Drop avx10_256 xts(aes)/ctr(aes) on x86.
 - Improve avx-512 optimisations for xts(aes).
 - Move chacha arch implementations into lib/crypto.
 - Move poly1305 into lib/crypto and drop unused Crypto API algorithm.
 - Disable powerpc/poly1305 as it has no SIMD fallback.
 - Move sha256 arch implementations into lib/crypto.
 - Convert deflate to acomp.
 - Set block size correctly in cbcmac.
 
 Drivers:
 
 - Do not use sg_dma_len before mapping in sun8i-ss.
 - Fix warm-reboot failure by making shutdown do more work in qat.
 - Add locking in zynqmp-sha.
 - Remove cavium/zip.
 - Add support for PCI device 0x17D8 to ccp.
 - Add qat_6xxx support in qat.
 - Add support for RK3576 in rockchip-rng.
 - Add support for i.MX8QM in caam.
 
 Others:
 
 - Fix irq_fpu_usable/kernel_fpu_begin inconsistency during CPU bring-up.
 - Add new SEV/SNP platform shutdown API in ccp.
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEn51F/lCuNhUwmDeSxycdCkmxi6cFAmgz47AACgkQxycdCkmx
 i6fvKRAAr4Xa903L0r1Q1P1alQqoFFCqimUWeH72m68LiWynHWi0lUo0z/+tKweg
 mnPStz7/Ha9HRHJjdNCMPnlJqXQDkuH3bIOuBJCwduDuhHo9VGOd46XGzmGMv3gb
 HKuZhI0lk7pznK3CSyD/2nHmbDCHD+7feTZSBMoN9mm875+aSoM6fdxgak8uPFcq
 KbB1L+hObTn2kAPSqRrNOR8/xG2N7hdH8eax7Li+LAtqYNVT5HvWVECsB/CKRPfB
 sgAv3UTzcIFapSSHUHaONppSeoqPAIAeV7SdQhJvlT+EUUR/h/B6+D9OUQQqbphQ
 LBalgTnqMKl0ymDEQFQ6QyYCat9ZfNmDft2WcXEsxc8PxImkgJI1W3B8O51sOjbG
 78D8JqVQ96dleo4FsBhM2wfG0b41JM6zU4raC4vS7a3qsUS+Q1MpehvcS1iORicy
 SpGdE8e7DLlxKhzWyW1xJnbrtMZDC7Sa2hUnxrvP0/xOvRhChKscRVtWcf0a5q7X
 8JmuvwVSOJuSbQ3MeFbQvpo5lR9+0WsNjM6e9miiH6Y7vZUKmWcq2yDp377qVzeh
 7NK6+OwGIQZZExrmtPw2BXwssT9Eg+ks6Y7g2Ne7yzvrjVNfEPY7Cws/5w7p8mRS
 qhrcpbJNFlWgD7YYkmGZFTQ8DCN25ipP8lklO/hbcfchqLE/o1o=
 =O8L5
 -----END PGP SIGNATURE-----

Merge tag 'v6.16-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

Pull crypto updates from Herbert Xu:
 "API:
   - Fix memcpy_sglist to handle partially overlapping SG lists
   - Use memcpy_sglist to replace null skcipher
   - Rename CRYPTO_TESTS to CRYPTO_BENCHMARK
   - Flip CRYPTO_MANAGER_DISABLE_TEST into CRYPTO_SELFTESTS
   - Hide CRYPTO_MANAGER
   - Add delayed freeing of driver crypto_alg structures

  Compression:
   - Allocate large buffers on first use instead of initialisation in scomp
   - Drop destination linearisation buffer in scomp
   - Move scomp stream allocation into acomp
   - Add acomp scatter-gather walker
   - Remove request chaining
   - Add optional async request allocation

  Hashing:
   - Remove request chaining
   - Add optional async request allocation
   - Move partial block handling into API
   - Add ahash support to hmac
   - Fix shash documentation to disallow usage in hard IRQs

  Algorithms:
   - Remove unnecessary SIMD fallback code on x86 and arm/arm64
   - Drop avx10_256 xts(aes)/ctr(aes) on x86
   - Improve avx-512 optimisations for xts(aes)
   - Move chacha arch implementations into lib/crypto
   - Move poly1305 into lib/crypto and drop unused Crypto API algorithm
   - Disable powerpc/poly1305 as it has no SIMD fallback
   - Move sha256 arch implementations into lib/crypto
   - Convert deflate to acomp
   - Set block size correctly in cbcmac

  Drivers:
   - Do not use sg_dma_len before mapping in sun8i-ss
   - Fix warm-reboot failure by making shutdown do more work in qat
   - Add locking in zynqmp-sha
   - Remove cavium/zip
   - Add support for PCI device 0x17D8 to ccp
   - Add qat_6xxx support in qat
   - Add support for RK3576 in rockchip-rng
   - Add support for i.MX8QM in caam

  Others:
   - Fix irq_fpu_usable/kernel_fpu_begin inconsistency during CPU bring-up
   - Add new SEV/SNP platform shutdown API in ccp"

* tag 'v6.16-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (382 commits)
  x86/fpu: Fix irq_fpu_usable() to return false during CPU onlining
  crypto: qat - add missing header inclusion
  crypto: api - Redo lookup on EEXIST
  Revert "crypto: testmgr - Add hash export format testing"
  crypto: marvell/cesa - Do not chain submitted requests
  crypto: powerpc/poly1305 - add depends on BROKEN for now
  Revert "crypto: powerpc/poly1305 - Add SIMD fallback"
  crypto: ccp - Add missing tee info reg for teev2
  crypto: ccp - Add missing bootloader info reg for pspv5
  crypto: sun8i-ce - move fallback ahash_request to the end of the struct
  crypto: octeontx2 - Use dynamic allocated memory region for lmtst
  crypto: octeontx2 - Initialize cptlfs device info once
  crypto: xts - Only add ecb if it is not already there
  crypto: lrw - Only add ecb if it is not already there
  crypto: testmgr - Add hash export format testing
  crypto: testmgr - Use ahash for generic tfm
  crypto: hmac - Add ahash support
  crypto: testmgr - Ignore EEXIST on shash allocation
  crypto: algapi - Add driver template support to crypto_inst_setname
  crypto: shash - Set reqsize in shash_alg
  ...
2025-05-26 13:47:28 -07:00
Linus Torvalds
15d90a5e55 CRC updates for 6.16
Cleanups for the kernel's CRC (cyclic redundancy check) code:
 
 - Use __ro_after_init where appropriate
 - Remove unnecessary static_key on s390
 - Rename some source code files
 - Rename the crc32 and crc32c crypto API modules
 - Use subsys_initcall instead of arch_initcall
 - Restore maintainers for crc_kunit.c
 - Fold crc16_byte() into crc16.c
 - Add some SPDX license identifiers
 -----BEGIN PGP SIGNATURE-----
 
 iIoEABYIADIWIQSacvsUNc7UX4ntmEPzXCl4vpKOKwUCaDNd3xQcZWJpZ2dlcnNA
 Z29vZ2xlLmNvbQAKCRDzXCl4vpKOKz0tAQCDqDA4Jd/54nnKpChMlKH8MTQDuwfz
 8GHZi50mn4Rw5gD/f+hOGItPfswBId/+MZy+rKWL7bE2e9DdJdtoqRRtwA4=
 =RWFl
 -----END PGP SIGNATURE-----

Merge tag 'crc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux

Pull CRC updates from Eric Biggers:
 "Cleanups for the kernel's CRC (cyclic redundancy check) code:

   - Use __ro_after_init where appropriate

   - Remove unnecessary static_key on s390

   - Rename some source code files

   - Rename the crc32 and crc32c crypto API modules

   - Use subsys_initcall instead of arch_initcall

   - Restore maintainers for crc_kunit.c

   - Fold crc16_byte() into crc16.c

   - Add some SPDX license identifiers"

* tag 'crc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux:
  lib/crc32: add SPDX license identifier
  lib/crc16: unexport crc16_table and crc16_byte()
  w1: ds2406: use crc16() instead of crc16_byte() loop
  MAINTAINERS: add crc_kunit.c back to CRC LIBRARY
  lib/crc: make arch-optimized code use subsys_initcall
  crypto: crc32 - remove "generic" from file and module names
  x86/crc: drop "glue" from filenames
  sparc/crc: drop "glue" from filenames
  s390/crc: drop "glue" from filenames
  powerpc/crc: rename crc32-vpmsum_core.S to crc-vpmsum-template.S
  powerpc/crc: drop "glue" from filenames
  arm64/crc: drop "glue" from filenames
  arm/crc: drop "glue" from filenames
  s390/crc32: Remove no-op module init and exit functions
  s390/crc32: Remove have_vxrs static key
  lib/crc: make the CPU feature static keys __ro_after_init
2025-05-26 13:32:06 -07:00
Linus Torvalds
14f19dc644 fscrypt update for 6.16
Add support for "hardware-wrapped inline encryption keys" to fscrypt.
 When enabled on supported platforms, this feature protects file contents
 keys from certain attacks, such as cold boot attacks.
 
 This feature uses the block layer support for wrapped keys which was
 merged in 6.15.  Wrapped key support has existed out-of-tree in Android
 for a long time, and it's finally ready for upstream now that there is a
 platform on which it works end-to-end with upstream.  Specifically,
 it works on the Qualcomm SM8650 HDK, using the Qualcomm ICE (Inline
 Crypto Engine) and HWKM (Hardware Key Manager).  The corresponding
 driver support is included in the SCSI tree for 6.16.  Validation for
 this feature includes two new tests that were already merged into
 xfstests (generic/368 and generic/369).
 -----BEGIN PGP SIGNATURE-----
 
 iIoEABYIADIWIQSacvsUNc7UX4ntmEPzXCl4vpKOKwUCaDNaqxQcZWJpZ2dlcnNA
 Z29vZ2xlLmNvbQAKCRDzXCl4vpKOK1K7AP92naB88sRzH1KG7Oic9+dMK+PImARP
 f15ebG2TzQ3qBgEAreqtNmtCNOH7pguYsTeAcX3Y243vzIkwkDRGk7k+aAI=
 =P6Sj
 -----END PGP SIGNATURE-----

Merge tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/linux

Pull fscrypt update from Eric Biggers:
 "Add support for 'hardware-wrapped inline encryption keys' to fscrypt.

  When enabled on supported platforms, this feature protects file
  contents keys from certain attacks, such as cold boot attacks.

  This feature uses the block layer support for wrapped keys which was
  merged in 6.15. Wrapped key support has existed out-of-tree in Android
  for a long time, and it's finally ready for upstream now that there is
  a platform on which it works end-to-end with upstream.

  Specifically, it works on the Qualcomm SM8650 HDK, using the Qualcomm
  ICE (Inline Crypto Engine) and HWKM (Hardware Key Manager). The
  corresponding driver support is included in the SCSI tree for 6.16.

  Validation for this feature includes two new tests that were already
  merged into xfstests (generic/368 and generic/369)"

* tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/linux:
  fscrypt: add support for hardware-wrapped keys
2025-05-26 13:27:40 -07:00
Linus Torvalds
f83fcb87f8 xfs: New code for 6.16
Signed-off-by: Carlos Maiolino <cem@kernel.org>
 -----BEGIN PGP SIGNATURE-----
 
 iJUEABMJAB0WIQSmtYVZ/MfVMGUq1GNcsMJ8RxYuYwUCaDQXTQAKCRBcsMJ8RxYu
 YwUHAYDYYm9oit6AIr0AgTXBMJ+DHyqaszBy0VT2jQUP+yXxyrQc46QExXKU9YQV
 ffmGRAsBgN7ZdDI8D5qWySyOynB3b1Jn3/0jY82GscFK0k0oX3EtxbN9MdrovbgK
 qyO66BVx7w==
 =pG5y
 -----END PGP SIGNATURE-----

Merge tag 'xfs-merge-6.16' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux

Pull xfs updates from Carlos Maiolino:

 - Atomic writes for XFS

 - Remove experimental warnings for pNFS, scrub and parent pointers

* tag 'xfs-merge-6.16' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: (26 commits)
  xfs: add inode to zone caching for data placement
  xfs: free the item in xfs_mru_cache_insert on failure
  xfs: remove the EXPERIMENTAL warning for pNFS
  xfs: remove some EXPERIMENTAL warnings
  xfs: Remove deprecated xfs_bufd sysctl parameters
  xfs: stop using set_blocksize
  xfs: allow sysadmins to specify a maximum atomic write limit at mount time
  xfs: update atomic write limits
  xfs: add xfs_calc_atomic_write_unit_max()
  xfs: add xfs_file_dio_write_atomic()
  xfs: commit CoW-based atomic writes atomically
  xfs: add large atomic writes checks in xfs_direct_write_iomap_begin()
  xfs: add xfs_atomic_write_cow_iomap_begin()
  xfs: refine atomic write size check in xfs_file_write_iter()
  xfs: refactor xfs_reflink_end_cow_extent()
  xfs: allow block allocator to take an alignment hint
  xfs: ignore HW which cannot atomic write a single block
  xfs: add helpers to compute transaction reservation for finishing intent items
  xfs: add helpers to compute log item overhead
  xfs: separate out setting buftarg atomic writes limits
  ...
2025-05-26 12:56:01 -07:00
Linus Torvalds
79b98edf91 Changes since last update:
- Add a `fsoffset` mount option to specify the filesystem offset;
 
  - Support Intel QAT accelerators to boost up the DEFLATE algorithm;
 
  - Initialize per-CPU workers and CPU hotplug hooks lazily to avoid
    unnecessary overhead when EROFS is not mounted;
 
  - Fix file handle encoding for 64-bit NIDs;
 
  - Minor cleanups.
 -----BEGIN PGP SIGNATURE-----
 
 iQJFBAABCgAvFiEEQ0A6bDUS9Y+83NPFUXZn5Zlu5qoFAmgz6IQRHHhpYW5nQGtl
 cm5lbC5vcmcACgkQUXZn5Zlu5qrp8w//V8rQpo/jQwUXP2xZDWUGe/iS5APQU/w+
 IQRn8LRt1RYLD1ssShW60y5mc40pa/PktxLlddIfcDDFfhAv4zYEK7Iosrd5FeGX
 vDawKcFvjzozpveqtjWR63QPO0Ff/ldSsnl9FsdQopffWNFw+X7D+/4fgUJah+CF
 p5jnyp6D7RvNMHdLIjQjiqvvmmAdllqb+nbyLy0jGQkzjIGR2RdJtqrM5gdsE/B1
 zKQRzs6NwYaBQ2MO6XmLAd2P0603RBGplR9OyLEpfFmUHX877pUxuGLQW2o+NbRY
 TodevQdzSJPlvHNrO0T+ztistwRhKGkCmyrP7+Vl4ackgRmA5ozT23CUxFX2hwQM
 GhE24aXyqO/vIA/RCsy+Tb8vxVY3ysNd4fz001HtWq0tOqLVyFkVEhvaZwLGqi1A
 PAV6WHqtYo/gjc8nrvq88GMGTUH0orIwlJpS9YQHhStzexyePDjl3cgQlmS0Q8J3
 JHtf8S+pnaModsvqKJJ9LQW0bHrbry9Bfo0M6yQ5sirehcrqGeDFZ0m+ny16Ki9N
 bv8Mx811KNtAVoeuwAidH2NqUxnz1/faiIs0yYE/2Vg2QfuEKjVXbpkDo2wfQj1i
 TVsQ9gPJB9mZpvnuaGYGdgzxN/lQAIo3JxWAHvHhMz/1suike97vqKms4W4lSoBY
 JPbJjs/4uUA=
 =+2IX
 -----END PGP SIGNATURE-----

Merge tag 'erofs-for-6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs

Pull erofs updates from Gao Xiang:
 "In this cycle, Intel QAT hardware accelerators are supported to
  improve DEFLATE decompression performance. I've tested it with the
  enwik9 dataset of 1 MiB pclusters on our Intel Sapphire Rapids
  bare-metal server and a PL0 ESSD, and the sequential read performance
  even surpasses LZ4 software decompression on this setup.

  In addition, a `fsoffset` mount option is introduced for file-backed
  mounts to specify the filesystem offset in order to adapt customized
  container formats.

  And other improvements and minor cleanups. Summary:

   - Add a `fsoffset` mount option to specify the filesystem offset

   - Support Intel QAT accelerators to boost up the DEFLATE algorithm

   - Initialize per-CPU workers and CPU hotplug hooks lazily to avoid
     unnecessary overhead when EROFS is not mounted

   - Fix file handle encoding for 64-bit NIDs

   - Minor cleanups"

* tag 'erofs-for-6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs:
  erofs: support DEFLATE decompression by using Intel QAT
  erofs: clean up erofs_{init,exit}_sysfs()
  erofs: add 'fsoffset' mount option to specify filesystem offset
  erofs: lazily initialize per-CPU workers and CPU hotplug hooks
  erofs: refine readahead tracepoint
  erofs: avoid using multiple devices with different type
  erofs: fix file handle encoding for 64-bit NIDs
2025-05-26 12:47:41 -07:00
Linus Torvalds
522544fc71 bcachefs updates for 6.16
Lots of changes:
 
 - Poisoned extents can now be moved: this lets us handle bitrotted data
   without deleting it. For now, reading from poisoned extents only
   returns -EIO: in the future we'll have an API for specifying "read
   this data even if there were bitflips".
 
 - Incompatible features may now be enabled at runtime, via
   "opts/version_upgrade" in sysfs. Toggle it to incompatible, and then
   toggle it back - option changes via the sysfs interface are
   persistent.
 
 - Various changes to support deployable disk images:
   - RO mounts now use less memory
   - Images may be stripped of alloc info, particularly useful for
     slimming them down if they will primarily be mounted RO. Alloc info
     will be automatically regenerated on first RW mount, and this is
     quite fast.
   - Filesystem images generated with 'bcachefs image' will be
     automatically resized the first time they're mounted on a larger
     device.
 
     The images 'bcachefs image' generates with compression enabled have
     been comparable in size to those generated by squashfs and erofs -
     but you get a full RW capable filesystem.
 
 - Major error message improvements for btree node reads, data reads,
   and elsewhere. We now build up a single error message that lists all
   the errors encountered, actions taken to repair, and success/failure
   of the IO. This extends to other error paths that may kick off other
   actions, e.g. scheduling recovery passes: actions we took because of
   an error are included in that error message, with grouping/indentation
   so we can see what caused what.
 
 - Repair/self healing:
   - We can now kick off recovery passes and run them in the background
     if we detect errors. Currently, this is just used by code that walks
     backpointers; we now also check for missing backpointers at runtime
     and run check_extents_to_backpointers if required. The messy 6.14
     upgrade left missing backpointers for some users, and this will
     correct that automatically instead of requiring a manual fsck - some
     users noticed this as copygc spinning and not making progress.
 
     In the future, as more recovery passes come online, we'll be able to
     repair and recover from nearly anything - except for unreadable
     btree nodes, and that's why you're using replication, of course -
     without shutting down the filesystem.
 
   - There's a new recovery pass, for checking the rebalance_work btree,
     which tracks extents that rebalance will process later.
 
 - Hardening:
   - Close the last known hole in btree iterator/btree locking
     assertions: path->should_be_locked paths must stay locked until the
     end of the transaction. This shook out a few bugs, including a
     performance issue that was causing unnecessary path_upgrade
     transaction restarts.
 
 - Performance;
   - Faster snapshot deletion: this is an incompatible feature, as it
     requires new sentinal values, for safety. Snapshot deletion no
     longer has to do a full metadata scan, it now just scans the inodes
     btree: if an extent/dirent/xattr is present for a given snapshot ID,
     we already require that an inode be present with that same snapshot
     ID.
 
     If/when users hit scalability limits again (ridiculously huge
     filesystems with lots of inodes, and many sparse snapshots), let me
     know - the next step will be to add an index from snapshot ID ->
     inode number, which won't be too hard.
 
   - Faster device removal: the "scan for pointers to this device" no
     longer does a full metadata scan, instead it walks backpointers.
     Like fast snapshot deletion this is another incompat feature: it
     also requires a new sentinal value, because we don't want to reuse
     these device IDs until after a fsck.
 
   - We're now coalescing redundant accounting updates prior to
     transaction commit, taking some pressure off the journal. Shortly
     we'll also be doing multiple extent updates in a transaction in the
     main write path, which combined with the previous should drastically
     cut down on the amount of metadata updates we have to journal.
 
 - Stack usage improvements: All allocator state has been moved off the
   stack
 
 - Debug improvements:
   - enumerated refcounts: The debug code previously used for filesystem
     write refs is now a small library, and used for other heavily used
     refcounts. Different users of a refcount are enumerated, making it
     much easier to debug refcount issues.
 
   - Async object debugging: There's a new kconfig option that makes
     various async objects (different types of bios, data updates, write
     ops, etc.) visible in debugfs, and it should be fast enough to leave
     on in production.
 
   - Various sets of assertions no longer require CONFIG_BCACHEFS_DEBUG,
     instead they're controlled by module parameters and static keys,
     meaning users won't need to compile custom kernels as often to help
     debug issues.
 
   - bch2_trans_kmalloc() calls can be tracked (there's a new kconfig
     option); with it on you can check the btree_transaction_stats in
     debugfs to see the bch2_trans_kmalloc() calls a transaction did when
     it used the most memory.
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEKnAFLkS8Qha+jvQrE6szbY3KbnYFAmgyaC0ACgkQE6szbY3K
 bnYcGQ//ZOCe34wjVFub+dNn9os0llaIFaShTC9Baoi+Ly8qmMBkiVR8h0XZWJ6I
 Xue8FaPksEDUF+pXSPjI+L/WA2uW/qNm2Q2RxEfxigSMSzUUZvHs/jU3ZkpZ1JQb
 l327tun1XNNY2JagcTj09X+VoasLuhQtvBKXM6gAWozXNszLesd1vaFexPsk13bV
 GwqSxlfayYt5DwzEf7OCL9CXWfW86qs8snLYAPpv/pyoVNKw+iuPFlhDA1AD1ZMG
 s+syQ5R7u5ikcfpYnaakDsn3KhxsX+jLk5PoSHk/6kGy/5BdJ1AUYQEsSNfdcxHy
 pxNht12Nuoo2q2qI0gL4oegnz36cndtveCf9vs6K0Vg24ZRylhh8uz3v/ZcAu0Ne
 CwFvpxMn5jtIgqh75i9R1/W6aiuKffkE29D4Me5RJxEqoM8yKKhKx6tHHzZftT3a
 QSvbgsfBghetfTqcajBvDDN5GQM2Z8pz2iLrIw/EHuAh15hAhzf+7ULHprIh6IDz
 m/Px72xrh39CAKI8IdsjD7QLT9a7xN3WKQXbSvFMEPjnJtGL3JGARZfsKB2gL7ZO
 551ONexueFkilQmGQfy20VYGF1Mu9mWTUqyVnNaQUMbgKKDcAivy71UyFe/n3GOB
 xJyEKTfrJg8Qn+vEJvlhXevVnz5FO/hiOAMIrMPKQq8XT0iNdAA=
 =srxl
 -----END PGP SIGNATURE-----

Merge tag 'bcachefs-2025-05-24' of git://evilpiepirate.org/bcachefs

Pull bcachefs updates from Kent Overstreet:

 - Poisoned extents can now be moved: this lets us handle bitrotted data
   without deleting it. For now, reading from poisoned extents only
   returns -EIO: in the future we'll have an API for specifying "read
   this data even if there were bitflips".

 - Incompatible features may now be enabled at runtime, via
   "opts/version_upgrade" in sysfs. Toggle it to incompatible, and then
   toggle it back - option changes via the sysfs interface are
   persistent.

 - Various changes to support deployable disk images:

     - RO mounts now use less memory

     - Images may be stripped of alloc info, particularly useful for
       slimming them down if they will primarily be mounted RO. Alloc
       info will be automatically regenerated on first RW mount, and
       this is quite fast

     - Filesystem images generated with 'bcachefs image' will be
       automatically resized the first time they're mounted on a larger
       device

   The images 'bcachefs image' generates with compression enabled have
   been comparable in size to those generated by squashfs and erofs -
   but you get a full RW capable filesystem

 - Major error message improvements for btree node reads, data reads,
   and elsewhere. We now build up a single error message that lists all
   the errors encountered, actions taken to repair, and success/failure
   of the IO. This extends to other error paths that may kick off other
   actions, e.g. scheduling recovery passes: actions we took because of
   an error are included in that error message, with
   grouping/indentation so we can see what caused what.

 - New option, 'rebalance_on_ac_only'. Does exactly what the name
   suggests, quite handy with background compression.

 - Repair/self healing:

     - We can now kick off recovery passes and run them in the
       background if we detect errors. Currently, this is just used by
       code that walks backpointers. We now also check for missing
       backpointers at runtime and run check_extents_to_backpointers if
       required. The messy 6.14 upgrade left missing backpointers for
       some users, and this will correct that automatically instead of
       requiring a manual fsck - some users noticed this as copygc
       spinning and not making progress.

       In the future, as more recovery passes come online, we'll be able
       to repair and recover from nearly anything - except for
       unreadable btree nodes, and that's why you're using replication,
       of course - without shutting down the filesystem.

     - There's a new recovery pass, for checking the rebalance_work
       btree, which tracks extents that rebalance will process later.

 - Hardening:

     - Close the last known hole in btree iterator/btree locking
       assertions: path->should_be_locked paths must stay locked until
       the end of the transaction. This shook out a few bugs, including
       a performance issue that was causing unnecessary path_upgrade
       transaction restarts.

 - Performance:

     - Faster snapshot deletion: this is an incompatible feature, as it
       requires new sentinal values, for safety. Snapshot deletion no
       longer has to do a full metadata scan, it now just scans the
       inodes btree: if an extent/dirent/xattr is present for a given
       snapshot ID, we already require that an inode be present with
       that same snapshot ID.

       If/when users hit scalability limits again (ridiculously huge
       filesystems with lots of inodes, and many sparse snapshots), let
       me know - the next step will be to add an index from snapshot ID
       -> inode number, which won't be too hard.

     - Faster device removal: the "scan for pointers to this device" no
       longer does a full metadata scan, instead it walks backpointers.
       Like fast snapshot deletion this is another incompat feature: it
       also requires a new sentinal value, because we don't want to
       reuse these device IDs until after a fsck.

     - We're now coalescing redundant accounting updates prior to
       transaction commit, taking some pressure off the journal. Shortly
       we'll also be doing multiple extent updates in a transaction in
       the main write path, which combined with the previous should
       drastically cut down on the amount of metadata updates we have to
       journal.

 - Stack usage improvements: All allocator state has been moved off the
   stack

 - Debug improvements:

     - enumerated refcounts: The debug code previously used for
       filesystem write refs is now a small library, and used for other
       heavily used refcounts. Different users of a refcount are
       enumerated, making it much easier to debug refcount issues.

     - Async object debugging: There's a new kconfig option that makes
       various async objects (different types of bios, data updates,
       write ops, etc.) visible in debugfs, and it should be fast enough
       to leave on in production.

     - Various sets of assertions no longer require
       CONFIG_BCACHEFS_DEBUG, instead they're controlled by module
       parameters and static keys, meaning users won't need to compile
       custom kernels as often to help debug issues.

     - bch2_trans_kmalloc() calls can be tracked (there's a new kconfig
       option). With it on you can check the btree_transaction_stats in
       debugfs to see the bch2_trans_kmalloc() calls a transaction did
       when it used the most memory.

* tag 'bcachefs-2025-05-24' of git://evilpiepirate.org/bcachefs: (218 commits)
  bcachefs: Don't mount bs > ps without TRANSPARENT_HUGEPAGE
  bcachefs: Fix btree_iter_next_node() for new locking asserts
  bcachefs: Ensure we don't use a blacklisted journal seq
  bcachefs: Small check_fix_ptr fixes
  bcachefs: Fix opts.recovery_pass_last
  bcachefs: Fix allocate -> self healing path
  bcachefs: Fix endianness in casefold check/repair
  bcachefs: Path must be locked if trans->locked && should_be_locked
  bcachefs: Simplify bch2_path_put()
  bcachefs: Plumb btree_trans for more locking asserts
  bcachefs: Clear trans->locked before unlock
  bcachefs: Clear should_be_locked before unlock in key_cache_drop()
  bcachefs: bch2_path_get() reuses paths if upgrade_fails & !should_be_locked
  bcachefs: Give out new path if upgrade fails
  bcachefs: Fix btree_path_get_locks when not doing trans restart
  bcachefs: btree_node_locked_type_nowrite()
  bcachefs: Kill bch2_path_put_nokeep()
  bcachefs: bch2_journal_write_checksum()
  bcachefs: Reduce stack usage in data_update_index_update()
  bcachefs: bch2_trans_log_str()
  ...
2025-05-26 12:43:30 -07:00
Linus Torvalds
8fdabcd9c0 gfs2 changes
- Fix the long-standing warnings in inode_to_wb() when CONFIG_LOCKDEP is
   enabled: gfs2 doesn't support cgroup writeback and so inode->i_wb will never
   change.  This is the counterpart of commit 9e888998ea ("writeback: fix
   false warning in inode_to_wb()").
 
 - Fix a hang introduced by commit 8d391972ae ("gfs2: Remove
   __gfs2_writepage()"): prevent gfs2_logd from creating transactions for jdata
   pages while trying to flush the log.
 
 - Fix a race between gfs2_create_inode() and gfs2_evict_inode() by deallocating
   partially created inodes on the gfs2_create_inode() error path.
 
 - Fix a bug in the journal head lookup code that could cause mount to fail
   after successful recovery.
 
 - Various smaller fixes and cleanups from various people.
 -----BEGIN PGP SIGNATURE-----
 
 iQJIBAABCAAyFiEEJZs3krPW0xkhLMTc1b+f6wMTZToFAmgw3W4UHGFncnVlbmJh
 QHJlZGhhdC5jb20ACgkQ1b+f6wMTZTrtfQ//Zua7sZEK3BszDJ5E0yr/hj2wLNBJ
 Fu/ehuymgoNaDcZgM9OhRw/l3cuTsEOoxv+Qreb3eHkfNgBfq25ij4IXRKyLuxjo
 rTcH8PdTjp9drQ9+lhKO19qCnQ1naHem5r1mvVfsbo1aAN3Wj8Ng3qAen+RbvKq+
 DN6Ox+DG+DBxKXg/KVhMyIifykbOWcQbkjdgzAIju4jhBGHmwI19qyyMBQU9gJP2
 sa1vUa9ai9bhir0wHBNWyFqjvVNfPzlLZ9qetOJFF6+EF0wiDTTbHg/6ueW3wr5u
 1I+ndP4RLJ0QXnoaxVozRqVnBeaW4V227Rrxie/5ZV5HusT5+Wky3VzGwaIHgy9b
 VX825Aff/DzgKLRblk/Rvqfnq2oVHkaNJJtBZgcliyxfKwRVSOV7AHTXSE+tzWHR
 DIe08FguliTWsKyPsTuLrwg5B2VTww+7FoQ7A3+L6dd6lQBN3JYsl1lxpIz3+k9N
 yqMiCQQc47HmTm9TJEUkcWmY2/qTRPeQnhZtPnLmv93vNrhoC2aL2ULesN80ferD
 iJb3gDVRsZKkCGuKALxEgBCubE5KyQi+64Rie1AHqHmR93lpINxMFjI3Wj4k9n+X
 LPLyT8F9prhnlITqgAMxVjbUXvz09l9aW4JOD4cpB2D7aTMBGrBx7ZMhS4MVajov
 DoXGzxv+FSxravk=
 =0EFZ
 -----END PGP SIGNATURE-----

Merge tag 'gfs2-for-6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2

Pull gfs2 updates from Andreas Gruenbacher:

 - Fix the long-standing warnings in inode_to_wb() when CONFIG_LOCKDEP
   is enabled: gfs2 doesn't support cgroup writeback and so inode->i_wb
   will never change. This is the counterpart of commit 9e888998ea
   ("writeback: fix false warning in inode_to_wb()")

 - Fix a hang introduced by commit 8d391972ae ("gfs2: Remove
   __gfs2_writepage()"): prevent gfs2_logd from creating transactions
   for jdata pages while trying to flush the log

 - Fix a race between gfs2_create_inode() and gfs2_evict_inode() by
   deallocating partially created inodes on the gfs2_create_inode()
   error path

 - Fix a bug in the journal head lookup code that could cause mount to
   fail after successful recovery

 - Various smaller fixes and cleanups from various people

* tag 'gfs2-for-6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2: (23 commits)
  gfs2: No more gfs2_find_jhead caching
  gfs2: Get rid of duplicate log head lookup
  gfs2: Simplify clean_journal
  gfs2: Simplify gfs2_log_pointers_init
  gfs2: Move gfs2_log_pointers_init
  gfs2: Minor comments fix
  gfs2: Don't start unnecessary transactions during log flush
  gfs2: Move gfs2_trans_add_databufs
  gfs2: Rename jdata_dirty_folio to gfs2_jdata_dirty_folio
  gfs2: avoid inefficient use of crc32_le_shift()
  gfs2: Do not call iomap_zero_range beyond eof
  gfs: don't check for AOP_WRITEPAGE_ACTIVATE in gfs2_write_jdata_batch
  gfs2: Fix usage of bio->bi_status in gfs2_end_log_write
  gfs2: deallocate inodes in gfs2_create_inode
  gfs2: Move GIF_ALLOC_FAILED check out of gfs2_ea_dealloc
  gfs2: Move gfs2_dinode_dealloc
  gfs2: Don't reread inodes unnecessarily
  gfs2: gfs2_create_inode error handling fix
  gfs2: Remove unnecessary NULL check before free_percpu()
  gfs2: check sb_min_blocksize return value
  ...
2025-05-26 12:35:08 -07:00
Linus Torvalds
a56d3133bd configfs-for-v6.16
-----BEGIN PGP SIGNATURE-----
 
 iQJKBAABCAA0FiEEEsH5R1a/fCoV1sAS4bgaPnkoY3cFAmgm4zAWHGEuaGluZGJv
 cmdAa2VybmVsLm9yZwAKCRDhuBo+eShjd8+nD/4xLZRdP5/Sq8boG/ZjPwja8ATv
 MjSrakeOHFPJx+ac/QNmhkWmVQrpazA72YU9NN5VL9UdM+eFHJ4EmFIUQFcKsYhU
 edj5Fyegc2/CzY4wPcJQcY4ck9n6xoWqR//75uEtHRfMVAwJguQ7/qg7XR+Skhy7
 RSuJ96qi2uf6ktrZUGVilkF+tjhg0j9eoiJUnU+2d5khT/vqlezv/x6xC1Vxr5WK
 JgsIhg9NzEc3BjZotmurZ7WaAIFey83ta8r7fwQM+SfSqMbLbdXu3XNQ5v9MBbBO
 YDsxl2LD2ukCzucbY5h6/h1TjQ+IBUSx9ExEq0ATG46HzMGBc7EFMYb3Q2klaSX2
 lfK5YKvZVFPZUp1Yr94+YIvyhU6g0dtDELOBVB5lj1FHv7wqDOUY9wofh+tLgyMT
 PTp/sYHc7UUvPghFMNhrkbGaIrUI2fRZviTgAJGOp2zE2gvV2lz4Jg9UvBkbpezc
 q8X6xx+3r1dj5MhlrjeLifLWiXaZhumT2D5TEwYl3LjKLzekFKCMoqJ5eqFPSty9
 vvp5uBk7siErAlAi3xq19HWmrGoacMg0tPqe9QElkA2jzBzNBcEdo7NQAAOzjkg+
 NA58fKyrcmKrI7Y1NQmHTmx1RIUOWPXyW7ddZS8CGgsDzlVH35gIBPFqmj235tSq
 67Rtb/Iev7KtPL0z8w==
 =d1MQ
 -----END PGP SIGNATURE-----

Merge tag 'configfs-for-v6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/a.hindborg/linux

Pull configfs updates from Andreas Hindborg:

 - Allow creation of rw files with custom permissions. This allows
   drivers to better protect secrets written through configfs

 - Fix a bug where an error condition did not cause an early return
   while populating attributes

 - Report ENOMEM rather than EFAULT when kvasprintf() fails in
   config_item_set_name()

 - Add a Rust API for configfs. This allows Rust drivers to use configfs
   through a memory safe interface

* tag 'configfs-for-v6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/a.hindborg/linux:
  MAINTAINERS: add configfs Rust abstractions
  rust: configfs: add a sample demonstrating configfs usage
  rust: configfs: introduce rust support for configfs
  configfs: Correct error value returned by API config_item_set_name()
  configfs: Do not override creating attribute file failure in populate_attrs()
  configfs: Delete semicolon from macro type_print() definition
  configfs: Add CONFIGFS_ATTR_PERM helper
2025-05-26 12:28:55 -07:00
Linus Torvalds
5e82ed5ca4 for-6.16-tag
-----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEE8rQSAMVO+zA4DBdWxWXV+ddtWDsFAmgtuJgACgkQxWXV+ddt
 WDt79g//YndozUasOP0raqNVvod4wYvmG/CX1yHOkFQpfRQSVG4av0KlTWnupXKG
 oEQvFbZ639tmXbBYlKlK8Ts8fy1dpj+2iG4ValukA4L7xkY8ML5DrGQfKYbPEm2i
 Ab9lp4qnZZutYVH2/5UGQqkEUA3/YIiOZ0hsZWir//zbkTCL9cuHwl2FUYbmFlHi
 Hxkd30QC0kZuxINdMxXGauF4JkFJFyiNnmI5dMjj07xMMWk1cv8vunoZ3LVjAlbW
 gX16+4rUmtJl33HbYqofee4Dcovvcuvt/fEM1LX0rGbKXOnKA2dQPoMQsjMAV82B
 mjhma5T709MgVHQiDdJduh86seaul4Cuv/E/OqoDj7Kfkoew/YquHEfU4TB4bvCX
 KmONEyJFd9QDq5CUyvfow7HENja6QbU31Fw6akrbfpsVcla0MKAUWPi+Vqpqf+pe
 qIWNcovorD2g/EVJV6y+w0K+kXTarPtXXmVnJnJPYtOkBWpARI3Y8wVxDCKX8Nfo
 7Kpi/h9K87+d9opjjEajydNONDL9GQa4AY4u/oeiwcSuJHvCt/rsKKwHZRyycRiI
 q+nGwsNcmY/ih/EVUzLgYomGG08H9nOcKvZOQkfHpOTI1EgvILAeV9SpGMex7du1
 PiPqVtv9Z60dKy6OValh7ttMpt7LszAK4Dk7XiyHrN1Q3sYDyrs=
 =bDOD
 -----END PGP SIGNATURE-----

Merge tag 'for-6.16-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux

Pull btrfs updates from David Sterba:
 "Apart from numerous cleanups, there are some performance improvements
  and one minor mount option update. There's one more radix-tree
  conversion (one remaining), and continued work towards enabling large
  folios (almost finished).

  Performance:

   - extent buffer conversion to xarray gains throughput and runtime
     improvements on metadata heavy operations doing writeback (sample
     test shows +50% throughput, -33% runtime)

   - extent io tree cleanups lead to performance improvements by
     avoiding unnecessary searches or repeated searches

   - more efficient extent unpinning when committing transaction
     (estimated run time improvement 3-5%)

  User visible changes:

   - remove standalone mount option 'nologreplay', deprecated in 5.9,
     replacement is 'rescue=nologreplay'

   - in scrub, update reporting, add back device stats message after
     detected errors (accidentally removed during recent refactoring)

  Core:

   - convert extent buffer radix tree to xarray

   - in subpage mode, move block perfect compression out of experimental
     build

   - in zoned mode, introduce sub block groups to allow managing special
     block groups, like the one for relocation or tree-log, to handle
     some corner cases of ENOSPC

   - in scrub, simplify bitmaps for block tracking status

   - continued preparations for large folios:
       - remove assertions for folio order 0
       - add support where missing: compression, buffered write, defrag,
         hole punching, subpage, send

   - fix fsync of files with no hard links not persisting deletion

   - reject tree blocks which are not nodesize aligned, a precaution
     from 4.9 times

   - move transaction abort calls closer to the error sites

   - remove usage of some struct bio_vec internals

   - simplifications in extent map

   - extent IO cleanups and optimizations

   - error handling improvements

   - enhanced ASSERT() macro with optional format strings

   - cleanups:
       - remove unused code
       - naming unifications, dropped __, added prefix
       - merge similar functions
       - use common helpers for various data structures"

* tag 'for-6.16-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (198 commits)
  btrfs: move misplaced comment of btrfs_path::keep_locks
  btrfs: remove standalone "nologreplay" mount option
  btrfs: use a single variable to track return value at btrfs_page_mkwrite()
  btrfs: don't return VM_FAULT_SIGBUS on failure to set delalloc for mmap write
  btrfs: simplify early error checking in btrfs_page_mkwrite()
  btrfs: pass true to btrfs_delalloc_release_space() at btrfs_page_mkwrite()
  btrfs: fix wrong start offset for delalloc space release during mmap write
  btrfs: fix harmless race getting delayed ref head count when running delayed refs
  btrfs: log error codes during failures when writing super blocks
  btrfs: simplify error return logic when getting folio at prepare_one_folio()
  btrfs: return real error from __filemap_get_folio() calls
  btrfs: remove superfluous return value check at btrfs_dio_iomap_begin()
  btrfs: fix invalid data space release when truncating block in NOCOW mode
  btrfs: update Kconfig option descriptions
  btrfs: update list of features built under experimental config
  btrfs: send: remove btrfs_debug() calls
  btrfs: use boolean for delalloc argument to btrfs_free_reserved_extent()
  btrfs: use boolean for delalloc argument to btrfs_free_reserved_bytes()
  btrfs: fold error checks when allocating ordered extent and update comments
  btrfs: check we grabbed inode reference when allocating an ordered extent
  ...
2025-05-26 12:24:43 -07:00
Linus Torvalds
49fffac983 for-6.16/io_uring-20250523
-----BEGIN PGP SIGNATURE-----
 
 iQJEBAABCAAuFiEEwPw5LcreJtl1+l5K99NY+ylx4KYFAmgwnDgQHGF4Ym9lQGtl
 cm5lbC5kawAKCRD301j7KXHgpgHZEADA1ym0ihHRjU2kTlXXOdkLLOl+o1RCHUjr
 KNf6sELGgyDC5FL/hAWdsjonInY4MLbJW0eNHEuuK8iFcn3wSHuHPXhRJXx/4cOs
 GGVLTd+Jm8ih4UL/GeLrBe3ehW9UUOtz1TCYzho0bdXHQWjruCFTqB5OzPQFMGQW
 R/lwXVNfjgGno5JhBnsrwz3ZnAfAnJhxqmc0GFHaa/nVF1OREYW/HS75EPFNiFgp
 Aevilw5QyrA2gDlZ+zCUwaGKAEl32yZCI6LZpI4kMtPK1reEbgFTrzIaCZ/OZCYM
 DVdBVEeuOmcBYIKbitD/+fcLNXHMrSJSWvUSXR4GuRNVkCTIAcEMKM2bX8VY7gmJ
 7ZQIo0EL2mSwmewHIYnvf9w/qrNYR0NyUt2v4U4rA2wj6e5w1EYMriP94wKdBGvD
 RNxja429N3fg3aBIkdQ6iYSVJRgE7DCo7dnKrEqglZPb32LOiNoOoou9shI5tb25
 8X7u0HzbpwKY/XByXZ2IaX7PYK2iFqkJjFYlGehtF97W85LGEvkDFU6fcBdjBO8r
 umgeE5O+lR+cf68JTJ6P34A7bBg71AXO3ytIuWunG56/0yu/FHDCjhBWE5ZjEhGR
 u2YhAGPRDQsJlSlxx8TXoKyYWP55NqdeyxYrmku/fZLn5WNVXOFeRlUDAZsF7mU7
 nuiOt9j4WA==
 =k8SF
 -----END PGP SIGNATURE-----

Merge tag 'for-6.16/io_uring-20250523' of git://git.kernel.dk/linux

Pull io_uring updates from Jens Axboe:

 - Avoid indirect function calls in io-wq for executing and freeing
   work.

   The design of io-wq is such that it can be a generic mechanism, but
   as it's just used by io_uring now, may as well avoid these indirect
   calls

 - Clean up registered buffers for networking

 - Add support for IORING_OP_PIPE. Pretty straight forward, allows
   creating pipes with io_uring, particularly useful for having these be
   instantiated as direct descriptors

 - Clean up the coalescing support fore registered buffers

 - Add support for multiple interface queues for zero-copy rx
   networking. As this feature was merged for 6.15 it supported just a
   single ifq per ring

 - Clean up the eventfd support

 - Add dma-buf support to zero-copy rx

 - Clean up and improving the request draining support

 - Clean up provided buffer support, most notably with an eye toward
   making the legacy support less intrusive

 - Minor fdinfo cleanups, dropping support for dumping what credentials
   are registered

 - Improve support for overflow CQE handling, getting rid of GFP_ATOMIC
   for allocating overflow entries where possible

 - Improve detection of cases where io-wq doesn't need to spawn a new
   worker unnecessarily

 - Various little cleanups

* tag 'for-6.16/io_uring-20250523' of git://git.kernel.dk/linux: (59 commits)
  io_uring/cmd: warn on reg buf imports by ineligible cmds
  io_uring/io-wq: only create a new worker if it can make progress
  io_uring/io-wq: ignore non-busy worker going to sleep
  io_uring/io-wq: move hash helpers to the top
  trace/io_uring: fix io_uring_local_work_run ctx documentation
  io_uring: finish IOU_OK -> IOU_COMPLETE transition
  io_uring: add new helpers for posting overflows
  io_uring: pass in struct io_big_cqe to io_alloc_ocqe()
  io_uring: make io_alloc_ocqe() take a struct io_cqe pointer
  io_uring: split alloc and add of overflow
  io_uring: open code io_req_cqe_overflow()
  io_uring/fdinfo: get rid of dumping credentials
  io_uring/fdinfo: only compile if CONFIG_PROC_FS is set
  io_uring/kbuf: unify legacy buf provision and removal
  io_uring/kbuf: refactor __io_remove_buffers
  io_uring/kbuf: don't compute size twice on prep
  io_uring/kbuf: drop extra vars in io_register_pbuf_ring
  io_uring/kbuf: use mem_is_zero()
  io_uring/kbuf: account ring io_buffer_list memory
  io_uring: drain based on allocates reqs
  ...
2025-05-26 12:13:22 -07:00