Currently inside prepare_pages(), we handle the leading and tailing page
differently, and skip the middle pages (if any). This is to avoid
reading pages which are fully covered by the dirty range.
Refactor the code by moving all checks (alignment check, range check,
force read check) into prepare_uptodate_page().
So that prepare_pages() only needs to iterate all the pages
unconditionally.
And since we're here, also update prepare_uptodate_page() to use
folio API other than the old page API.
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Inside btrfs_buffered_write(), we have a local variable @dirty_pages,
recording the number of pages we dirtied in the current iteration.
However we do not really need that variable, since it can be calculated
from @pos and @copied.
In fact there is already a problem inside the short copy path, where we
use @dirty_pages to calculate the range we need to release.
But that usage assumes sectorsize == PAGE_SIZE, which is no longer true.
Instead of keeping @dirty_pages and cause incorrect usage, just
calculate the number of dirtied pages inside btrfs_dirty_pages().
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
btrfs_try_tree_write_lock() has been unused since commit
50b21d7a06 ("btrfs: submit a writeback bio per extent_buffer").
Remove it as we don't need it anymore.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
btrfs_is_parity_mirror() has been unused since commit 4886ff7b50
("btrfs: introduce a new helper to submit write bio for repair").
Remove it as the code was refactored and we don't need the helper
anymore.
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
btrfs_free_squota_rsv() was added in commit
e85a0adacf ("btrfs: ensure releasing squota reserve on head refs")
but has remained unused since then.
Remove it as we don't seem to need it and was probably a leftover.
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Add first stash of very basic self tests for the RAID stripe-tree.
More test cases will follow exercising the tree.
Reviewed-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This macro is no longer used after the "btrfs: Cleaned up folio->page
conversion" series patch [1] was applied, so remove it.
[1]: https://patchwork.kernel.org/project/linux-btrfs/cover/20240828182908.3735344-1-lizetao1@huawei.com/
Reviewed-by: Neal Gompa <neal@gompa.dev>
Signed-off-by: Youling Tang <tangyouling@kylinos.cn>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
The variable stop_loop was originally introduced in commit 625f1c8dc6
("Btrfs: improve the loop of scrub_stripe"). It was initialized to 0 in
commit 3b080b2564 ("Btrfs: scrub raid56 stripes in the right way").
However, in a later commit 18d30ab961 ("btrfs: scrub: use
scrub_simple_mirror() to handle RAID56 data stripe scrub"), the code
that modified stop_loop was removed, making the variable redundant.
Currently, stop_loop is only initialized with 0 and is never used or
modified within the scrub_stripe() function. As a result, this patch
removes the stop_loop variable to clean up the code and eliminate
unnecessary redundancy.
This change has no impact on functionality, as stop_loop was never
utilized in any meaningful way in the final version of the code.
Reviewed-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Riyan Dhiman <riyandhiman14@gmail.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
The qgroup record was allocated with kzalloc(), so it's pointless to set
its old_roots member to NULL. Remove the assignment.
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Instead of dereferencing the delayed refs from the transaction multiple
times, store it early in the local variable and then always use the
variable.
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
There's no need to hold the delayed refs spinlock when calling
btrfs_qgroup_trace_extent_nolock() from btrfs_qgroup_trace_extent(), since
it doesn't change anything in delayed refs and it only changes the xarray
used to track qgroup extent records, which is protected by the xarray's
lock.
Holding the lock is only adding unnecessary lock contention with other
tasks that actually need to take the lock to add/remove/change delayed
references. So remove the locking.
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Instead of extracting fs_info from the transaction multiples times, store
it in a local variable and use it.
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Now that we track qgroup extent records in a xarray we don't need to have
a "bytenr" field in struct btrfs_qgroup_extent_record, since we can get
it from the index of the record in the xarray.
So remove the field and grab the bytenr from either the index key or any
other place where it's available (delayed refs). This reduces the size of
struct btrfs_qgroup_extent_record from 40 bytes down to 32 bytes, meaning
that we now can store 128 instances of this structure instead of 102 per
4K page.
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Remove the duplicated transaction joining, block reserve setting and raid
extent inserting in btrfs_finish_ordered_extent().
While at it, also abort the transaction in case inserting a RAID
stripe-tree entry fails.
Suggested-by: Naohiro Aota <naohiro.aota@wdc.com>
Reviewed-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: David Sterba <dsterba@suse.com>
[PROBLEM]
Currently btrfs accepts any file path for its device, resulting some
weird situation:
# ./mount_by_fd /dev/test/scratch1 /mnt/btrfs/
The program has the following source code:
#include <fcntl.h>
#include <stdio.h>
#include <sys/mount.h>
int main(int argc, char *argv[]) {
int fd = open(argv[1], O_RDWR);
char path[256];
snprintf(path, sizeof(path), "/proc/self/fd/%d", fd);
return mount(path, argv[2], "btrfs", 0, NULL);
}
Then we can have the following weird device path:
BTRFS: device fsid 2378be81-fe12-46d2-a9e8-68cf08dd98d5 devid 1 transid 7 /proc/self/fd/3 (253:2) scanned by mount_by_fd (18440)
Normally it's not a big deal, and later udev can trigger a device path
rename. But if udev didn't trigger, the device path "/proc/self/fd/3"
will show up in mtab.
[CAUSE]
For filename "/proc/self/fd/3", it means the opened file descriptor 3.
In above case, it's exactly the device we want to open, aka points to
"/dev/test/scratch1" which is another symlink pointing to "/dev/dm-2".
Inside kernel we solve the mount source using LOOKUP_FOLLOW, which
follows the symbolic link and grab the proper block device.
But inside btrfs we also save the filename into btrfs_device::name, and
utilize that member to report our mount source, which leads to the above
situation.
[FIX]
Instead of unconditionally trust the path, check if the original file
(not following the symbolic link) is inside "/dev/", if not, then
manually lookup the path to its final destination, and use that as our
device path.
This allows us to still use symbolic links, like
"/dev/mapper/test-scratch" from LVM2, which is required for fstests runs
with LVM2 setup.
And for really weird names, like the above case, we solve it to
"/dev/dm-2" instead.
Reviewed-by: Filipe Manana <fdmanana@suse.com>
Link: https://bugzilla.suse.com/show_bug.cgi?id=1230641
Reported-by: Fabian Vogt <fvogt@suse.com>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
[PROBLEM]
It is very common for udev to trigger device scan, and every time a
mounted btrfs device got re-scan from different soft links, we will get
some of unnecessary device path updates, this is especially common
for LVM based storage:
# lvs
scratch1 test -wi-ao---- 10.00g
scratch2 test -wi-a----- 10.00g
scratch3 test -wi-a----- 10.00g
scratch4 test -wi-a----- 10.00g
scratch5 test -wi-a----- 10.00g
test test -wi-a----- 10.00g
# mkfs.btrfs -f /dev/test/scratch1
# mount /dev/test/scratch1 /mnt/btrfs
# dmesg -c
[ 205.705234] BTRFS: device fsid 7be2602f-9e35-4ecf-a6ff-9e91d2c182c9 devid 1 transid 6 /dev/mapper/test-scratch1 (253:4) scanned by mount (1154)
[ 205.710864] BTRFS info (device dm-4): first mount of filesystem 7be2602f-9e35-4ecf-a6ff-9e91d2c182c9
[ 205.711923] BTRFS info (device dm-4): using crc32c (crc32c-intel) checksum algorithm
[ 205.713856] BTRFS info (device dm-4): using free-space-tree
[ 205.722324] BTRFS info (device dm-4): checking UUID tree
So far so good, but even if we just touched any soft link of
"dm-4", we will get quite some unnecessary device path updates.
# touch /dev/mapper/test-scratch1
# dmesg -c
[ 469.295796] BTRFS info: devid 1 device path /dev/mapper/test-scratch1 changed to /dev/dm-4 scanned by (udev-worker) (1221)
[ 469.300494] BTRFS info: devid 1 device path /dev/dm-4 changed to /dev/mapper/test-scratch1 scanned by (udev-worker) (1221)
Such device path rename is unnecessary and can lead to random path
change due to the udev race.
[CAUSE]
Inside device_list_add(), we are using a very primitive way checking if
the device has changed, strcmp().
Which can never handle links well, no matter if it's hard or soft links.
So every different link of the same device will be treated as a different
device, causing the unnecessary device path update.
[FIX]
Introduce a helper, is_same_device(), and use path_equal() to properly
detect the same block device.
So that the different soft links won't trigger the rename race.
Reviewed-by: Filipe Manana <fdmanana@suse.com>
Link: https://bugzilla.suse.com/show_bug.cgi?id=1230641
Reported-by: Fabian Vogt <fvogt@suse.com>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Previously for btrfs with sector size smaller than page size (subpage),
we only allow compression if the range is fully page aligned.
This is to work around the asynchronous submission of compressed range,
which delayed the page unlock and writeback into a workqueue,
furthermore asynchronous submission can lock multiple sector range
across page boundary.
Such asynchronous submission makes it very hard to co-operate with other
regular writes.
With the recent changes to the subpage folio unlock path, now
asynchronous submission of compressed pages can co-operate with regular
submission, so enable sector perfect compression if it's an experimental
build.
The ETA for moving this feature out of experimental is 6.15, and I hope
all remaining corner cases can be exposed before that.
Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Currently we only mark sectors as locked if there is a *NEW* delalloc
range for it.
But NEW delalloc range is not the same as dirty sectors we want to
submit, e.g:
0 32K 64K 96K 128K
| |////////||///////| |////|
120K
For above 64K page size case, writepage_delalloc() for page 0 will find
and lock the delalloc range [32K, 96K), which is beyond the page
boundary.
Then when writepage_delalloc() is called for the page 64K, since [64K,
96K) is already locked, only [120K, 128K) will be locked.
This means, although range [64K, 96K) is dirty and will be submitted
later by extent_writepage_io(), it will not be marked as locked.
This is fine for now, as we call btrfs_folio_end_writer_lock_bitmap() to
free every non-compressed sector, and compression is only allowed for
full page range.
But this is not safe for future sector perfect compression support, as
this can lead to double folio unlock:
Thread A | Thread B
---------------------------------------+--------------------------------
| submit_one_async_extent()
| |- extent_clear_unlock_delalloc()
extent_writepage() | |- btrfs_folio_end_writer_lock()
|- btrfs_folio_end_writer_lock_bitmap()| |- btrfs_subpage_end_and_test_writer()
| | | |- atomic_sub_and_test()
| | | /* Now the atomic value is 0 */
|- if (atomic_read() == 0) | |
|- folio_unlock() | |- folio_unlock()
The root cause is the above range [64K, 96K) is dirtied and should also
be locked but it isn't.
So to make everything more consistent and prepare for the incoming
sector perfect compression, mark all dirty sectors as locked.
Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Currently for subpage (sector size < page size) cases, we reuse subpage
locked bitmap to find out all delalloc ranges we have locked, and run
all those found ranges.
However such reuse is not perfect, e.g.:
0 32K 64K 96K 128K
| |////////||///////| |////|
120K
For above range, writepage_delalloc() for page 0 will handle the range
[32K, 96k), note delalloc range can be beyond the page boundary.
But writepage_delalloc() for page 64K will only handle range [120K,
128K), as the previous run on page 0 has already handled range [64K,
96K).
Meanwhile for the writeback we should expect range [64K, 96K) to also be
locked, this leads to the mismatch from locked bitmap and delalloc
range.
This is not causing problems yet, but it's still an inconsistent
behavior.
So instead of relying on the subpage locked bitmap, move the delalloc
range search using local @delalloc_bitmap, so that we can remove the
existing btrfs_folio_find_writer_locked().
Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
The function extent_writepage_io() will submit the dirty sectors inside
the page for the write.
But recently to co-operate with the incoming subpage compression
enhancement, a new bitmap is introduced to
btrfs_bio_ctrl::submit_bitmap, to only avoid a subset of the dirty
range.
This is because we can have the following cases with 64K page size:
0 16K 32K 48K 64K
| |/////////| |/|
52K
For range [16K, 32K), we queue the dirty range for compression, which is
ran in a delayed workqueue.
Then for range [48K, 52K), we go through the regular submission path.
In that case, our btrfs_bio_ctrl::submit_bitmap will exclude the range
[16K, 32K).
The dirty flags for the range [16K, 32K) is only cleared when the
compression is done, by the extent_clear_unlock_delalloc() call inside
submit_one_async_extent().
This patch fix the false alert by removing the
btrfs_folio_assert_not_dirty() check, since it's no longer correct for
subpage compression cases.
Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
For btrfs with sector size < page size (e.g. 4K sector size, 64K page
size), and enable the sector perfect compression support, then the
following dirty range can lead to problems:
0 32K 64K 96K 128K
| |///////||//////| |/|
124K
In above case, if we start writeback for that inode, the last dirty
range [124K, 128K) will not be submitted and cause reserved space
leakage:
- Start writeback for page 0
We find the range [32K, 96K) is suitable for compression, and queue it
into a workqueue to do the delayed compression and submission.
- Compression happens for range [32K, 96K)
Function extent_range_clear_dirty_for_io() is called, however it is
only doing full page handling, not considering any the extra bitmaps
for subpage cases.
That function will clear page dirty for both page 0 and page 64K.
- Writeback for the inode is done
Because page 64K has its dirty flag cleared, it will not be considered
as a writeback target.
This means the range [124K, 128K) will not be submitted, and reserved
space for it will be leaked.
Fix this problem by using the subpage helper to clear the dirty flag.
Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
[PROBLEM]
If sector perfect compression is enabled for sector size < page size
case, the following case can lead dirty ranges not being written back:
0 32K 64K 96K 128K
| |///////||//////| |/|
124K
In above example, the page size is 64K, and we need to write back above
two pages.
- Submit for page 0 (main thread)
We found delalloc range [32K, 96K), which can be compressed.
So we queue an async range for [32K, 96K).
This means, the page unlock/clearing dirty/setting writeback will
all happen in a workqueue context.
- The compression is done, and compressed range is submitted (workqueue)
Since the compression is done in asynchronously, the compression can
be done before the main thread to submit for page 64K.
Now the whole range [32K, 96K), involving two pages, will be marked
writeback.
- Submit for page 64K (main thread)
extent_write_cache_pages() got its wbc->sync_mode is WB_SYNC_NONE,
so it skips the writeback wait.
And unlock the page and exit. This means the dirty range [124K, 128K)
will never be submitted, until next writeback happens for page 64K.
This will never happen for previous kernels because:
- For sector size == page size case
Since one page is one sector, if a page is marked writeback it will
not have dirty flags.
So this corner case will never hit.
- For sector size < page size case
We never do subpage compression, a range can only be submitted for
compression if the range is fully page aligned.
This change makes the subpage behavior mostly the same as non-subpage
cases.
[ENHANCEMENT]
Instead of relying WB_SYNC_NONE check only, if it's a subpage case, then
always wait for writeback flags.
Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
There are already two bugs (one in zlib, one in zstd) that involved
compression path is not handling sector size < page size cases well.
So it makes more sense to make sure that btrfs_compress_folios() returns
Since we already have two bugs (one in zlib, one in zstd) in the
compression path resulting the @total_in be to larger than the
to-be-compressed range length, there is enough reason to add an ASSERT()
to make sure the total read-in length doesn't exceed the input length.
Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Inside zstd_compress_folios(), after exhausted one input page, we need
to switch to the next page as input.
However when counting the total input bytes (@tot_in), we always increase
it by PAGE_SIZE.
For the following case, it can cause incorrect value:
0 32K 64K 96K
| |///////////||///////////|
After compressing range [32K, 64K), we switch to the next page, and
increasing @tot_in by 64K, while we only read 32K.
This will cause the @total_in to return a value larger than the input
length.
Fix it by only increase @tot_in by the input size.
Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Inside zlib_compress_folios(), each time we switch the input page cache,
the @start is increased by PAGE_SIZE.
But for the incoming compression support for sector size < page size
(previously we support compression only when the range is fully page
aligned), this is not going to handle the following case:
0 32K 64K 96K
| |///////////||///////////|
@start has the initial value 32K, indicating the start filepos of the
to-be-compressed range.
And when grabbing the first page as input, we always call "start +=
PAGE_SIZE;".
But since @start is starting at 32K, it will be increased by 64K,
resulting it to be 96K for the next range, causing incorrect input range
and corruption for the future subpage compression.
Fix it by only increase @start by the input size.
Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Currently CONFIG_BTRFS_EXPERIMENTAL is not only for the extra debugging
output, but also for experimental features.
This is not ideal to distinguish planned but not yet stable features
from those purely designed for debugging.
This patch splits the following features into CONFIG_BTRFS_EXPERIMENTAL:
- Extent map shrinker
This seems to be the first one to exit experimental.
- Extent tree v2
This seems to be the last one to graduate from experimental.
- Raid stripe tree
- Csum offload mode
- Send protocol v3
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
According to the description, CONFIG_BTRFS_DEBUG is only for extra
debug info, meanwhile sanity checks should be managed by
CONFIG_BTRFS_ASSERT.
There is no need to check both to enable assert_rbio().
Just remove the check for CONFIG_BTRFS_DEBUG.
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
- Correct flags for X Elite USB MP GDSC and pcie pipediv2 clocks
- Fix alpha PLL post_div mask for the cases where width is not
specified
- Avoid hangs in the SM8350 video driver (venus) by setting HW_CTRL
trigger feature on the video clocks
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Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk fixes from Stephen Boyd:
"A handful of Qualcomm clk driver fixes:
- Correct flags for X Elite USB MP GDSC and pcie pipediv2 clocks
- Fix alpha PLL post_div mask for the cases where width is not
specified
- Avoid hangs in the SM8350 video driver (venus) by setting HW_CTRL
trigger feature on the video clocks"
* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
clk: qcom: gcc-x1e80100: Fix USB MP SS1 PHY GDSC pwrsts flags
clk: qcom: gcc-x1e80100: Fix halt_check for pipediv2 clocks
clk: qcom: clk-alpha-pll: Fix pll post div mask when width is not set
clk: qcom: videocc-sm8350: use HW_CTRL_TRIGGER for vcodec GDSCs
Core has no updates.
i2c-host fixes for v6.12-rc7 (from Andi)
In designware an incorrect behavior has been fixes when
concluding a transmission.
Fixed return error value evaluation in the Mule multiplexer.
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Merge tag 'i2c-for-6.12-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c fixes from Wolfram Sang:
"i2c-host fixes for v6.12-rc7 (from Andi):
- Fix designware incorrect behavior when concluding a transmission
- Fix Mule multiplexer error value evaluation"
* tag 'i2c-for-6.12-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: designware: do not hold SCL low when I2C_DYNAMIC_TAR_UPDATE is not set
i2c: muxes: Fix return value check in mule_i2c_mux_probe()
If the caller supplies an iocb->ki_pos value that is close to the
filesystem upper limit, and an iterator with a count that causes us to
overflow that limit, then filemap_read() enters an infinite loop.
This behaviour was discovered when testing xfstests generic/525 with the
"localio" optimisation for loopback NFS mounts.
Reported-by: Mike Snitzer <snitzer@kernel.org>
Fixes: c2a9737f45 ("vfs,mm: fix a dead loop in truncate_inode_pages_range()")
Tested-by: Mike Snitzer <snitzer@kernel.org>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
a concurrent deactivation due to propagation delays of the register
write
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Merge tag 'irq_urgent_for_v6.12_rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fix from Borislav Petkov:
- Make sure GICv3 controller interrupt activation doesn't race with a
concurrent deactivation due to propagation delays of the register
write
* tag 'irq_urgent_for_v6.12_rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip/gic-v3: Force propagation of the active state with a read-back
Three affect DAMON. Lorenzo's five-patch series to address the
mmap_region error handling is here also.
Apart from that, various singletons.
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Merge tag 'mm-hotfixes-stable-2024-11-09-22-40' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull misc fixes from Andrew Morton:
"20 hotfixes, 14 of which are cc:stable.
Three affect DAMON. Lorenzo's five-patch series to address the
mmap_region error handling is here also.
Apart from that, various singletons"
* tag 'mm-hotfixes-stable-2024-11-09-22-40' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
mailmap: add entry for Thorsten Blum
ocfs2: remove entry once instead of null-ptr-dereference in ocfs2_xa_remove()
signal: restore the override_rlimit logic
fs/proc: fix compile warning about variable 'vmcore_mmap_ops'
ucounts: fix counter leak in inc_rlimit_get_ucounts()
selftests: hugetlb_dio: check for initial conditions to skip in the start
mm: fix docs for the kernel parameter ``thp_anon=``
mm/damon/core: avoid overflow in damon_feed_loop_next_input()
mm/damon/core: handle zero schemes apply interval
mm/damon/core: handle zero {aggregation,ops_update} intervals
mm/mlock: set the correct prev on failure
objpool: fix to make percpu slot allocation more robust
mm/page_alloc: keep track of free highatomic
mm: resolve faulty mmap_region() error path behaviour
mm: refactor arch_calc_vm_flag_bits() and arm64 MTE handling
mm: refactor map_deny_write_exec()
mm: unconditionally close VMAs on error
mm: avoid unsafe VMA hook invocation when error arises on mmap hook
mm/thp: fix deferred split unqueue naming and locking
mm/thp: fix deferred split queue not partially_mapped
Here are some small remaining USB and Thunderbolt fixes and device ids
for 6.12-rc7. Included in here are:
- new USB serial driver device ids
- thunderbolt driver fixes for reported problems
- typec bugfixes
- dwc3 driver fix
- musb driver fix
All of these have been in linux-next this past week with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-6.12-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB/Thunderbolt fixes from Greg KH:
"Here are some small remaining USB and Thunderbolt fixes and device ids
for 6.12-rc7. Included in here are:
- new USB serial driver device ids
- thunderbolt driver fixes for reported problems
- typec bugfixes
- dwc3 driver fix
- musb driver fix
All of these have been in linux-next this past week with no reported
issues"
* tag 'usb-6.12-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
USB: serial: qcserial: add support for Sierra Wireless EM86xx
thunderbolt: Fix connection issue with Pluggable UD-4VPD dock
usb: typec: fix potential out of bounds in ucsi_ccg_update_set_new_cam_cmd()
usb: dwc3: fix fault at system suspend if device was already runtime suspended
usb: typec: qcom-pmic: init value of hdr_len/txbuf_len earlier
usb: musb: sunxi: Fix accessing an released usb phy
USB: serial: io_edgeport: fix use after free in debug printk
USB: serial: option: add Quectel RG650V
USB: serial: option: add Fibocom FG132 0x0112 composition
thunderbolt: Add only on-board retimers when !CONFIG_USB4_DEBUGFS_MARGINING
Here are 2 small memory leak fixes for the vchiq_arm staging driver that
have been sitting in my tree for weeks and should get merged for
6.12-rc7 so that people don't keep tripping over them.
They both have been in linux-next for a while with no reported problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-6.12-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging driver fixes from Greg KH:
"Here are two small memory leak fixes for the vchiq_arm staging driver
that have been sitting in my tree for weeks and should get merged for
6.12-rc7 so that people don't keep tripping over them.
They both have been in linux-next for a while with no reported
problems"
* tag 'staging-6.12-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
staging: vchiq_arm: Use devm_kzalloc() for drv_mgmt allocation
staging: vchiq_arm: Use devm_kzalloc() for vchiq_arm_state allocation
In designware an incorrect behavior has been fixes when
concluding a transmission.
Fixed return error value evaluation in the Mule multiplexer.
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Merge tag 'i2c-host-fixes-6.12-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/andi.shyti/linux into i2c/for-current
i2c-host fixes for v6.12-rc7
In designware an incorrect behavior has been fixes when
concluding a transmission.
Fixed return error value evaluation in the Mule multiplexer.
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Merge tag 'v6.12-rc6-smb3-client-fix' of git://git.samba.org/sfrench/cifs-2.6
Pull smb client fix from Steve French:
"Fix net namespace refcount use after free issue"
* tag 'v6.12-rc6-smb3-client-fix' of git://git.samba.org/sfrench/cifs-2.6:
smb: client: Fix use-after-free of network namespace.
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Merge tag 'block-6.12-20241108' of git://git.kernel.dk/linux
Pull block fix from Jens Axboe:
"Single fix for an issue triggered with PROVE_RCU=y, with nvme using
the wrong iterators for an SRCU protected list"
* tag 'block-6.12-20241108' of git://git.kernel.dk/linux:
nvme/host: Fix RCU list traversal to use SRCU primitive
- Allow tripless thermal zones defined in a DT to be registered in
accordance with the thermal DT bindings (Icenowy Zheng).
- Annotate LMH IRQs with lockdep classes to prevent lockdep from
reporting a possible recursive locking issue that cannot really
occur (Dmitry Baryshkov).
- Improve the thermal library "make clean" to remove a leftover
symbolic link created during compilation and fix the sampling
handler invocation in that library to pass the correct pointer
to it (Emil Dahl Juhl, zhang jiao).
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Merge tag 'thermal-6.12-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull thermal control fixes from Rafael Wysocki:
"These fix one issue in the qcom lmh thermal driver, a DT handling
issue in the thermal core and two issues in the userspace thermal
library:
- Allow tripless thermal zones defined in a DT to be registered in
accordance with the thermal DT bindings (Icenowy Zheng)
- Annotate LMH IRQs with lockdep classes to prevent lockdep from
reporting a possible recursive locking issue that cannot really
occur (Dmitry Baryshkov)
- Improve the thermal library "make clean" to remove a leftover
symbolic link created during compilation and fix the sampling
handler invocation in that library to pass the correct pointer to
it (Emil Dahl Juhl, zhang jiao)"
* tag 'thermal-6.12-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
thermal/of: support thermal zones w/o trips subnode
tools/lib/thermal: Remove the thermal.h soft link when doing make clean
tools/lib/thermal: Fix sampling handler context ptr
thermal/drivers/qcom/lmh: Remove false lockdep backtrace
Fix the asymmetric CPU capacity support code in the intel_pstate driver,
added during this develompent cycle, to address a corner case in which
the capacity of a CPU going online is not updated (Rafael Wysocki).
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Merge tag 'pm-6.12-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fix from Rafael Wysocki:
"Fix the asymmetric CPU capacity support code in the intel_pstate
driver, added during this develompent cycle, to address a corner case
in which the capacity of a CPU going online is not updated (Rafael
Wysocki)"
* tag 'pm-6.12-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
cpufreq: intel_pstate: Update asym capacity for CPUs that were offline initially
cpufreq: intel_pstate: Clear hybrid_max_perf_cpu before driver registration
Fix the ACPI processor driver initialization ordering after recent
changes to avoid calling init_freq_invariance_cppc() too early on
AMD platforms (Mario Limonciello).
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Merge tag 'acpi-6.12-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fix from Rafael Wysocki:
"Fix the ACPI processor driver initialization ordering after recent
changes to avoid calling init_freq_invariance_cppc() too early on AMD
platforms (Mario Limonciello)"
* tag 'acpi-6.12-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: processor: Move arch_init_invariance_cppc() call later
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Merge tag 'v6.12-rc6-ksmbd-fixes' of git://git.samba.org/ksmbd
Pull smb server fixes from Steve French:
"Four fixes, all also marked for stable:
- fix two potential use after free issues
- fix OOM issue with many simultaneous requests
- fix missing error check in RPC pipe handling"
* tag 'v6.12-rc6-ksmbd-fixes' of git://git.samba.org/ksmbd:
ksmbd: check outstanding simultaneous SMB operations
ksmbd: fix slab-use-after-free in smb3_preauth_hash_rsp
ksmbd: fix slab-use-after-free in ksmbd_smb2_session_create
ksmbd: Fix the missing xa_store error check
Two small fixes, the drivers one in ufs simply delays running a work
queue and the generic one in zoned storage switches to a more correct
API that tries the standard buddy allocator first (for small
allocations); this fixes an allocation problem with small allocations
seen under memory pressure.
Signed-off-by: James E.J. Bottomley <James.Bottomley@HansenPartnership.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Two small fixes, the drivers one in ufs simply delays running a work
queue and the generic one in zoned storage switches to a more correct
API that tries the standard buddy allocator first (for small
allocations); this fixes an allocation problem with small allocations
seen under memory pressure"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: ufs: core: Start the RTC update work later
scsi: sd_zbc: Use kvzalloc() to allocate REPORT ZONES buffer
amdgpu:
- Brightness fix
- DC vbios parsing fix
- ACPI fix
- SMU 14.x fix
- Power workload profile fix
- GC partitioning fix
- Debugfs fixes
imagination:
- Track PVR context per file
- Break ref-counting cycle
panel-orientation-quirks:
- Fix matching Lenovo Yoga Tab 3 X90F
panthor:
- Lock VM array
- Be strict about I/O mapping flags
xe:
- Fix ccs_mode setting for Xe2 and later
- Synchronize ccs_mode setting with client creation
- Apply scheduling WA for LNL in additional places as needed
- Fix leak and lock handling in error paths of xe_exec ioctl
- Fix GGTT allocation leak leading to eventual crash in SR-IOV
- Move run_ticks update out of job handling to avoid synchronization
with reader
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Merge tag 'drm-fixes-2024-11-09' of https://gitlab.freedesktop.org/drm/kernel
Pull drm fixes from Dave Airlie:
"Weekly fixes, usual leaders in amdgpu and xe, then a panel quirk, and
some fixes to imagination and panthor drivers. Seems around the usual
level for this time and don't know of any big problems.
amdgpu:
- Brightness fix
- DC vbios parsing fix
- ACPI fix
- SMU 14.x fix
- Power workload profile fix
- GC partitioning fix
- Debugfs fixes
imagination:
- Track PVR context per file
- Break ref-counting cycle
panel-orientation-quirks:
- Fix matching Lenovo Yoga Tab 3 X90F
panthor:
- Lock VM array
- Be strict about I/O mapping flags
xe:
- Fix ccs_mode setting for Xe2 and later
- Synchronize ccs_mode setting with client creation
- Apply scheduling WA for LNL in additional places as needed
- Fix leak and lock handling in error paths of xe_exec ioctl
- Fix GGTT allocation leak leading to eventual crash in SR-IOV
- Move run_ticks update out of job handling to avoid synchronization
with reader"
* tag 'drm-fixes-2024-11-09' of https://gitlab.freedesktop.org/drm/kernel: (23 commits)
drm/panthor: Be stricter about IO mapping flags
drm/panthor: Lock XArray when getting entries for the VM
drm: panel-orientation-quirks: Make Lenovo Yoga Tab 3 X90F DMI match less strict
drm/xe: Stop accumulating LRC timestamp on job_free
drm/xe/pf: Fix potential GGTT allocation leak
drm/xe: Drop VM dma-resv lock on xe_sync_in_fence_get failure in exec IOCTL
drm/xe: Fix possible exec queue leak in exec IOCTL
drm/amdgpu: add missing size check in amdgpu_debugfs_gprwave_read()
drm/amdgpu: Adjust debugfs eviction and IB access permissions
drm/amdgpu: Adjust debugfs register access permissions
drm/amdgpu: Fix DPX valid mode check on GC 9.4.3
drm/amd/pm: correct the workload setting
drm/amd/pm: always pick the pptable from IFWI
drm/amdgpu: prevent NULL pointer dereference if ATIF is not supported
drm/amd/display: parse umc_info or vram_info based on ASIC
drm/amd/display: Fix brightness level not retained over reboot
drm/xe/guc/tlb: Flush g2h worker in case of tlb timeout
drm/xe/ufence: Flush xe ordered_wq in case of ufence timeout
drm/xe: Move LNL scheduling WA to xe_device.h
drm/xe: Use the filelist from drm for ccs_mode change
...
- Fix ccs_mode setting for Xe2 and later (Balasubramani)
- Synchronize ccs_mode setting with client creation (Balasubramani)
- Apply scheduling WA for LNL in additional places as needed
(Nirmoy)
- Fix leak and lock handling in error paths of xe_exec ioctl
(Matthew Brost)
- Fix GGTT allocation leak leading to eventual crash in SR-IOV
(Michal Wajdeczko)
- Move run_ticks update out of job handling to avoid synchronization
with reader (Lucas)
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Merge tag 'drm-xe-fixes-2024-11-08' of https://gitlab.freedesktop.org/drm/xe/kernel into drm-fixes
Driver Changes:
- Fix ccs_mode setting for Xe2 and later (Balasubramani)
- Synchronize ccs_mode setting with client creation (Balasubramani)
- Apply scheduling WA for LNL in additional places as needed
(Nirmoy)
- Fix leak and lock handling in error paths of xe_exec ioctl
(Matthew Brost)
- Fix GGTT allocation leak leading to eventual crash in SR-IOV
(Michal Wajdeczko)
- Move run_ticks update out of job handling to avoid synchronization
with reader (Lucas)
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/4ffcebtluaaaohquxfyf5babpihmtscxwad3jjmt5nggwh2xpm@ztw67ucywttg
When the Tx FIFO is empty and the last command has no STOP bit
set, the master holds SCL low. If I2C_DYNAMIC_TAR_UPDATE is not
set, BIT(13) MST_ON_HOLD of IC_RAW_INTR_STAT is not enabled,
causing the __i2c_dw_disable() timeout. This is quite similar to
commit 2409205acd ("i2c: designware: fix __i2c_dw_disable() in
case master is holding SCL low"). Also check BIT(7)
MST_HOLD_TX_FIFO_EMPTY in IC_STATUS, which is available when
IC_STAT_FOR_CLK_STRETCH is set.
Fixes: 2409205acd ("i2c: designware: fix __i2c_dw_disable() in case master is holding SCL low")
Co-developed-by: Xiaowu Ding <xiaowu.ding@jaguarmicro.com>
Signed-off-by: Xiaowu Ding <xiaowu.ding@jaguarmicro.com>
Co-developed-by: Angus Chen <angus.chen@jaguarmicro.com>
Signed-off-by: Angus Chen <angus.chen@jaguarmicro.com>
Signed-off-by: Liu Peibao <loven.liu@jaguarmicro.com>
Acked-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
