Fix kerneldoc warnings across the dm-vdo target. Also
remove some unhelpful or inaccurate doc comments, and fix
some format inconsistencies that did not produce warnings.
No functional changes.
Suggested-by: Sunday Adelodun <adelodunolaoluwa@yahoo.com>
Signed-off-by: Matthew Sakai <msakai@redhat.com>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
There may be devices with physical block size larger than 4k.
If dm-bufio sends I/O that is not aligned on physical block size,
performance is degraded.
The 4k minimum alignment limit is there because some SSDs report logical
and physical block size 512 despite having 4k internally - so dm-bufio
shouldn't send I/Os not aligned on 4k boundary, because they perform
badly (the SSD does read-modify-write for them).
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Reported-by: Uladzislau Rezki (Sony) <urezki@gmail.com>
Cc: stable@vger.kernel.org
Allow handling of bios with REQ_ATOMIC flag set.
Don't split these bios and fail them if they overrun the hard limit
"BIO_MAX_VECS << PAGE_SHIFT".
In order to simplify the code, this commit joins the logic that avoids
splitting emulated zone append bios with the logic that avoids
splitting atomic write bios.
Signed-off-by: John Garry <john.g.garry@oracle.com>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Tested-by: John Garry <john.g.garry@oracle.com>
Any bio with REQ_ATOMIC flag set should never be split or partially
completed, so BUG_ON() on this scenario in dm_accept_partial_bio() (whose
intent is to allow partial completions).
Also, we must reject atomic bio to targets that don't support them,
otherwise this BUG could be triggered by stray bios that have the
REQ_ATOMIC set.
Signed-off-by: John Garry <john.g.garry@oracle.com>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Tested-by: John Garry <john.g.garry@oracle.com>
v->fec->extra_pool has zero reserved entries, so we can remove it and use
the kernel cache directly.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Reviewed-by: Eric Biggers <ebiggers@kernel.org>
There are two problems with the recursive correction:
1. It may cause denial-of-service. In fec_read_bufs, there is a loop that
has 253 iterations. For each iteration, we may call verity_hash_for_block
recursively. There is a limit of 4 nested recursions - that means that
there may be at most 253^4 (4 billion) iterations. Red Hat QE team
actually created an image that pushes dm-verity to this limit - and this
image just makes the udev-worker process get stuck in the 'D' state.
2. It doesn't work. In fec_read_bufs we store data into the variable
"fio->bufs", but fio bufs is shared between recursive invocations, if
"verity_hash_for_block" invoked correction recursively, it would
overwrite partially filled fio->bufs.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Reported-by: Guangwu Zhang <guazhang@redhat.com>
Reviewed-by: Sami Tolvanen <samitolvanen@google.com>
Reviewed-by: Eric Biggers <ebiggers@kernel.org>
When performing a read-modify-write(RMW) operation, any modification
to a buffered block must cause the entire buffer to be marked dirty.
Marking only a subrange as dirty is incorrect because the underlying
device block size(ubs) defines the minimum read/write granularity. A
lower device can perform I/O only on regions which are fully aligned
and sized to ubs.
This change ensures that write-back operations always occur in full
ubs-sized chunks, matching the intended emulation semantics of the
EBS target.
As for user space visible impact, submitting sub-ubs and misaligned
I/O for devices which are tuned to ubs sizes only, will reject such
requests, therefore it can lead to losing data. Example:
1) Create a 8K nvme device in qemu by adding
-device nvme,drive=drv0,serial=foo,logical_block_size=8192,physical_block_size=8192
2) Setup dm-ebs to emulate 512B to 8K mapping
urezki@pc638:~/bin$ cat dmsetup.sh
lower=/dev/nvme0n1
len=$(blockdev --getsz "$lower")
echo "0 $len ebs $lower 0 1 16" | dmsetup create nvme-8k
urezki@pc638:~/bin$
offset 0, ebs=1 and ubs=16(in sectors).
3) Create an ext4 filesystem(default 4K block size)
urezki@pc638:~/bin$ sudo mkfs.ext4 -F /dev/dm-0
mke2fs 1.47.0 (5-Feb-2023)
Discarding device blocks: done
Creating filesystem with 2072576 4k blocks and 518144 inodes
Filesystem UUID: bd0b6ca6-0506-4e31-86da-8d22c9d50b63
Superblock backups stored on blocks:
32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632
Allocating group tables: done
Writing inode tables: done
Creating journal (16384 blocks): done
Writing superblocks and filesystem accounting information: mkfs.ext4: Input/output error while writing out and closing file system
urezki@pc638:~/bin$ dmesg
<snip>
[ 1618.875449] buffer_io_error: 1028 callbacks suppressed
[ 1618.875456] Buffer I/O error on dev dm-0, logical block 0, lost async page write
[ 1618.875527] Buffer I/O error on dev dm-0, logical block 1, lost async page write
[ 1618.875602] Buffer I/O error on dev dm-0, logical block 2, lost async page write
[ 1618.875620] Buffer I/O error on dev dm-0, logical block 3, lost async page write
[ 1618.875639] Buffer I/O error on dev dm-0, logical block 4, lost async page write
[ 1618.894316] Buffer I/O error on dev dm-0, logical block 5, lost async page write
[ 1618.894358] Buffer I/O error on dev dm-0, logical block 6, lost async page write
[ 1618.894380] Buffer I/O error on dev dm-0, logical block 7, lost async page write
[ 1618.894405] Buffer I/O error on dev dm-0, logical block 8, lost async page write
[ 1618.894427] Buffer I/O error on dev dm-0, logical block 9, lost async page write
<snip>
Many I/O errors because the lower 8K device rejects sub-ubs/misaligned
requests.
with a patch:
urezki@pc638:~/bin$ sudo mkfs.ext4 -F /dev/dm-0
mke2fs 1.47.0 (5-Feb-2023)
Discarding device blocks: done
Creating filesystem with 2072576 4k blocks and 518144 inodes
Filesystem UUID: 9b54f44f-ef55-4bd4-9e40-c8b775a616ac
Superblock backups stored on blocks:
32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632
Allocating group tables: done
Writing inode tables: done
Creating journal (16384 blocks): done
Writing superblocks and filesystem accounting information: done
urezki@pc638:~/bin$ sudo mount /dev/dm-0 /mnt/
urezki@pc638:~/bin$ ls -al /mnt/
total 24
drwxr-xr-x 3 root root 4096 Oct 17 15:13 .
drwxr-xr-x 19 root root 4096 Jul 10 19:42 ..
drwx------ 2 root root 16384 Oct 17 15:13 lost+found
urezki@pc638:~/bin$
After this change: mkfs completes; mount succeeds.
Signed-off-by: Uladzislau Rezki (Sony) <urezki@gmail.com>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Cc: stable@vger.kernel.org
Both the bio- and rq-based paths have no problem supporting REQ_ATOMIC,
so enable DM_TARGET_ATOMIC_WRITES.
Signed-off-by: John Garry <john.g.garry@oracle.com>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Enhance visibility into dm-verity Forward Error Correction (FEC)
activity. While FEC can correct on-disk corruptions, the number of
successful correction events is not readily exposed through a standard
interface.
This change integrates FEC statistics into the verity target's
.status handler for STATUSTYPE_INFO. The info output now
includes count of corrected block by FEC.
The counter is a per-device instance atomic64_t, maintained within
the struct dm_verity_fec, tracking blocks successfully repaired by FEC
on this specific device instance since it was created.
This approach aligns with the standard Device Mapper mechanism for
targets to report runtime information, as used by other targets like
dm-integrity.
This patch also updates Documentation/admin-guide/device-mapper/verity.rst
to reflect the new status information.
Tested:
Induced single-bit errors on a block device protected by dm-verity
with FEC on android phone. Confirmed 'dmctl status <device>' on Android
reports an incrementing 'fec_corrected_blocks' count after the
corrupted blocks were accessed.
Signed-off-by: Shubhankar Mishra <shubhankarm@google.com>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Commit f1cd6cb24b ("dm ima: add a warning in dm_init if duplicate ima
events are not measured") added a warning message if CONFIG_IMA is
enabled but CONFIG_IMA_DISABLE_HTABLE is not to inform users. When
enabling CONFIG_IMA, CONFIG_IMA_DISABLE_HTABLE is disabled by default
and so warning is seen. Therefore, it seems more appropriate to make
this an INFO level message than warning. If this truly is a warning,
then maybe CONFIG_IMA_DISABLE_HTABLE should default to y if CONFIG_IMA
is enabled.
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
When the crypto library provides an optimized implementation of
sha256_finup_2x(), use it to interleave the hashing of pairs of data
blocks. On some CPUs this nearly doubles hashing performance. The
increase in overall throughput of cold-cache dm-verity reads that I'm
seeing on arm64 and x86_64 is roughly 35% (though this metric is hard to
measure as it jumps around a lot).
For now this is done only on data blocks, not Merkle tree blocks. We
could use sha256_finup_2x() on Merkle tree blocks too, but that is less
important as there aren't as many Merkle tree blocks as data blocks, and
that would require some additional code restructuring.
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
In preparation for supporting interleaved hashing where dm-verity will
need to keep track of the real and wanted digests for multiple data
blocks simultaneously, stop using the want_digest and real_digest fields
of struct dm_verity_io from so many different places. Specifically:
- Make various functions take want_digest as a parameter rather than
having it be implicitly passed via the struct dm_verity_io.
- Add a new tmp_digest field, and use this instead of real_digest when
computing a digest solely for the purpose of immediately checking it.
The result is that real_digest and want_digest are used only by
verity_verify_io().
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
When the hash algorithm is SHA-256 and the verity version is not 0, use
the SHA-256 library instead of crypto_shash.
This is a prerequisite for making dm-verity interleave the computation
of SHA-256 hashes for increased performance. That optimization is
available in the SHA-256 library but not in crypto_shash.
Even without interleaved hashing, switching to the library also slightly
improves performance by itself because it avoids the overhead of
crypto_shash, including indirect calls and other API overhead.
(Benchmark on x86_64, AMD Zen 5: hashing 4K blocks gets 2.1% faster.)
SHA-256 is by far the most common hash algorithm used with dm-verity.
It makes sense to optimize for the common case and fall back to the
generic crypto layer for uncommon cases, as suggested by Linus:
https://lore.kernel.org/r/CAHk-=wgp-fOSsZsYrbyzqCAfEvrt5jQs1jL-97Wc4seMNTUyng@mail.gmail.com
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
I added this log message in commit bbf6a56692 ("dm verity: log the
hash algorithm implementation"), to help people debug issues where they
forgot to enable the architecture-optimized SHA-256 code in their
kconfig or accidentally enabled a slow hardware offload driver (such as
QCE) that overrode the faster CPU-accelerated code. However:
- The crypto layer now always enables the architecture-optimized SHA-1,
SHA-256, and SHA-512 code. Moreover, for simplicity the driver name
is now fixed at "sha1-lib", "sha256-lib", etc.
- dm-verity now uses crypto_shash instead of crypto_ahash, preventing
the mistake of accidentally using a slow driver such as QCE.
Therefore, this log message generally no longer provides useful
information. Remove it.
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Request-based devices (dm-multipath) queue I/O in blk-mq on noflush
suspends. Any queued IO will make it impossible to freeze the queue. If
a process attempts to update the queue limits while there is queued IO,
it can be get stuck holding the limits lock, while unable to freeze the
queue. If device-mapper then attempts to update the limits during a
table swap, it will deadlock trying to grab the limits lock while making
it impossible to flush the IO.
Disallow updating the queue limits during a table swap, when updating an
immutable request-based dm device (dm-multipath) during a noflush
suspend. It is userspace's responsibility to make sure that the new
table uses the same limits as the existing table if it asks for a
noflush suspend.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Replace sprintf()+strlen() with sysfs_emit(), the preferred helper for
sysfs show() routines. sysfs_emit() returns the number of bytes written,
guarantees NUL-termination, and clamps to PAGE_SIZE-1.
Reference: Documentation/filesystems/sysfs.rst.
No functional change intended.
Signed-off-by: Vivek BalachandharTN <vivek.balachandhar@gmail.com>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
md->nr_zones is no longer used for anything. Remove it.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
folio_nr_pages() is a faster helper function to get the number of pages when
NR_PAGES_IN_LARGE_FOLIO is enabled.
Signed-off-by: Pedro Demarchi Gomes <pedrodemargomes@gmail.com>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
The lmk IV mode, which dm-crypt supports for Loop-AES compatibility,
involves an MD5 computation. Update its implementation to use the MD5
library API instead of crypto_shash. This has many benefits, such as:
- Simpler code. Notably, much of the error-handling code is no longer
needed, since the library functions can't fail.
- Reduced stack usage. crypt_iv_lmk_one() now allocates only 112 bytes
on the stack instead of 520 bytes.
- The library functions are strongly typed, preventing bugs like
https://lore.kernel.org/r/f1625ddc-e82e-4b77-80c2-dc8e45b54848@gmail.com
- Slightly improved performance, as the library provides direct access
to the MD5 code without unnecessary overhead such as indirect calls.
To preserve the existing behavior of lmk support being disabled when the
kernel is booted with "fips=1", make crypt_iv_lmk_ctr() check
fips_enabled itself. Previously it relied on crypto_alloc_shash("md5")
failing. (I don't know for sure that lmk *actually* needs to be
disallowed in FIPS mode; this just preserves the existing behavior.)
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
One revert because of a regression in the I2C core which has sadly not
showed up during its time in -next.
-----BEGIN PGP SIGNATURE-----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=b0xy
-----END PGP SIGNATURE-----
Merge tag 'i2c-for-6.18-rc1-hotfix' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c fix from Wolfram Sang:
"One revert because of a regression in the I2C core which has sadly not
showed up during its time in -next"
* tag 'i2c-for-6.18-rc1-hotfix' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
Revert "i2c: boardinfo: Annotate code used in init phase only"
reserved and accessing reserved register space could result in undefined
behavior
- Fix a function's retval check in aspeed-scu-ic
-----BEGIN PGP SIGNATURE-----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=dVwm
-----END PGP SIGNATURE-----
Merge tag 'irq_urgent_for_v6.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fixes from Borislav Petkov:
- Skip interrupt ID 0 in sifive-plic during suspend/resume because
ID 0 is reserved and accessing reserved register space could result
in undefined behavior
- Fix a function's retval check in aspeed-scu-ic
* tag 'irq_urgent_for_v6.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip/sifive-plic: Avoid interrupt ID 0 handling during suspend/resume
irqchip/aspeed-scu-ic: Fix an IS_ERR() vs NULL check
The previous fix to trace_marker required updating trace_marker_raw
as well. The difference between trace_marker_raw from trace_marker
is that the raw version is for applications to write binary structures
directly into the ring buffer instead of writing ASCII strings.
This is for applications that will read the raw data from the ring
buffer and get the data structures directly. It's a bit quicker than
using the ASCII version.
Unfortunately, it appears that our test suite has several tests that
test writes to the trace_marker file, but lacks any tests to the
trace_marker_raw file (this needs to be remedied). Two issues came
about the update to the trace_marker_raw file that syzbot found:
- Fix tracing_mark_raw_write() to use per CPU buffer
The fix to use the per CPU buffer to copy from user space was needed for
both the trace_maker and trace_maker_raw file.
The fix for reading from user space into per CPU buffers properly fixed
the trace_marker write function, but the trace_marker_raw file wasn't
fixed properly. The user space data was correctly written into the per CPU
buffer, but the code that wrote into the ring buffer still used the user
space pointer and not the per CPU buffer that had the user space data
already written.
- Stop the fortify string warning from writing into trace_marker_raw
After converting the copy_from_user_nofault() into a memcpy(), another
issue appeared. As writes to the trace_marker_raw expects binary data, the
first entry is a 4 byte identifier. The entry structure is defined as:
struct {
struct trace_entry ent;
int id;
char buf[];
};
The size of this structure is reserved on the ring buffer with:
size = sizeof(*entry) + cnt;
Then it is copied from the buffer into the ring buffer with:
memcpy(&entry->id, buf, cnt);
This use to be a copy_from_user_nofault(), but now converting it to
a memcpy() triggers the fortify-string code, and causes a warning.
The allocated space is actually more than what is copied, as the cnt
used also includes the entry->id portion. Allocating sizeof(*entry)
plus cnt is actually allocating 4 bytes more than what is needed.
Change the size function to:
size = struct_size(entry, buf, cnt - sizeof(entry->id));
And update the memcpy() to unsafe_memcpy().
-----BEGIN PGP SIGNATURE-----
iIoEABYKADIWIQRRSw7ePDh/lE+zeZMp5XQQmuv6qgUCaOq0fhQccm9zdGVkdEBn
b29kbWlzLm9yZwAKCRAp5XQQmuv6qr4HAQCNbFEDjzNNEueCWLOptC5YfeJgdvPB
399CzuFJl02ZOgD/flPJa1r+NaeYOBhe1BgpFF9FzB/SPXAXkXUGLM7WIgg=
=goks
-----END PGP SIGNATURE-----
Merge tag 'trace-v6.18-3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull tracing fixes from Steven Rostedt:
"The previous fix to trace_marker required updating trace_marker_raw as
well. The difference between trace_marker_raw from trace_marker is
that the raw version is for applications to write binary structures
directly into the ring buffer instead of writing ASCII strings. This
is for applications that will read the raw data from the ring buffer
and get the data structures directly. It's a bit quicker than using
the ASCII version.
Unfortunately, it appears that our test suite has several tests that
test writes to the trace_marker file, but lacks any tests to the
trace_marker_raw file (this needs to be remedied). Two issues came
about the update to the trace_marker_raw file that syzbot found:
- Fix tracing_mark_raw_write() to use per CPU buffer
The fix to use the per CPU buffer to copy from user space was
needed for both the trace_maker and trace_maker_raw file.
The fix for reading from user space into per CPU buffers properly
fixed the trace_marker write function, but the trace_marker_raw
file wasn't fixed properly. The user space data was correctly
written into the per CPU buffer, but the code that wrote into the
ring buffer still used the user space pointer and not the per CPU
buffer that had the user space data already written.
- Stop the fortify string warning from writing into trace_marker_raw
After converting the copy_from_user_nofault() into a memcpy(),
another issue appeared. As writes to the trace_marker_raw expects
binary data, the first entry is a 4 byte identifier. The entry
structure is defined as:
struct {
struct trace_entry ent;
int id;
char buf[];
};
The size of this structure is reserved on the ring buffer with:
size = sizeof(*entry) + cnt;
Then it is copied from the buffer into the ring buffer with:
memcpy(&entry->id, buf, cnt);
This use to be a copy_from_user_nofault(), but now converting it to
a memcpy() triggers the fortify-string code, and causes a warning.
The allocated space is actually more than what is copied, as the
cnt used also includes the entry->id portion. Allocating
sizeof(*entry) plus cnt is actually allocating 4 bytes more than
what is needed.
Change the size function to:
size = struct_size(entry, buf, cnt - sizeof(entry->id));
And update the memcpy() to unsafe_memcpy()"
* tag 'trace-v6.18-3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
tracing: Stop fortify-string from warning in tracing_mark_raw_write()
tracing: Fix tracing_mark_raw_write() to use buf and not ubuf
- Fix UAPI types check in headers_check.pl
- Only enable -Werror for hostprogs with CONFIG_WERROR / W=e
- Ignore fsync() error when output of gen_init_cpio is a pipe
- Several little build fixes for recent modules.builtin.modinfo series
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
-----BEGIN PGP SIGNATURE-----
iHUEABYKAB0WIQR74yXHMTGczQHYypIdayaRccAalgUCaOqyGgAKCRAdayaRccAa
lhIaAP4owzRbZv/KnwVgXt3IDlAN7tOJQyiNbuAOTTH9IewvhAEA24zfrlav7CQl
WSc0d/poWAdmQJc0T/bdQ71G69j6dgQ=
=ljuS
-----END PGP SIGNATURE-----
Merge tag 'kbuild-fixes-6.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux
Pull Kbuild fixes from Nathan Chancellor:
- Fix UAPI types check in headers_check.pl
- Only enable -Werror for hostprogs with CONFIG_WERROR / W=e
- Ignore fsync() error when output of gen_init_cpio is a pipe
- Several little build fixes for recent modules.builtin.modinfo series
* tag 'kbuild-fixes-6.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux:
kbuild: Use '--strip-unneeded-symbol' for removing module device table symbols
s390/vmlinux.lds.S: Move .vmlinux.info to end of allocatable sections
kbuild: Add '.rel.*' strip pattern for vmlinux
kbuild: Restore pattern to avoid stripping .rela.dyn from vmlinux
gen_init_cpio: Ignore fsync() returning EINVAL on pipes
scripts/Makefile.extrawarn: Respect CONFIG_WERROR / W=e for hostprogs
kbuild: uapi: Strip comments before size type check
Fixes only in drivers (ufs, mvsas, qla2xxx, target) that came in just
before or during the merge window. The most important one is the
qla2xxx which reverts a conversion to fix flexible array member
warnings, that went up in this merge window but which turned out on
further testing to be causing data corruption.
Signed-off-by: James E.J. Bottomley <James.Bottomley@HansenPartnership.com>
-----BEGIN PGP SIGNATURE-----
iLgEABMIAGAWIQTnYEDbdso9F2cI+arnQslM7pishQUCaOpnUhsUgAAAAAAEAA5t
YW51MiwyLjUrMS4xMSwyLDImHGphbWVzLmJvdHRvbWxleUBoYW5zZW5wYXJ0bmVy
c2hpcC5jb20ACgkQ50LJTO6YrIUCFQEA1cADof79U9suDka2hAa2l7D4wJQ53qSj
R7CwarAVX2wA/3RaEHySnSk+ivyHRl5AOYlPrYsnBo1o2KUq1M6kfviM
=itgd
-----END PGP SIGNATURE-----
Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Fixes only in drivers (ufs, mvsas, qla2xxx, target) that came in just
before or during the merge window.
The most important one is the qla2xxx which reverts a conversion to
fix flexible array member warnings, that went up in this merge window
but which turned out on further testing to be causing data corruption"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: ufs: core: Include UTP error in INT_FATAL_ERRORS
scsi: ufs: sysfs: Make HID attributes visible
scsi: mvsas: Fix use-after-free bugs in mvs_work_queue
scsi: ufs: core: Fix PM QoS mutex initialization
scsi: ufs: core: Fix runtime suspend error deadlock
Revert "scsi: qla2xxx: Fix memcpy() field-spanning write issue"
scsi: target: target_core_configfs: Add length check to avoid buffer overflow
emulator in favor of int3_emulate_jcc() which is written in C
- Replace KVM fastops with C-based stubs which avoids problems with the
fastop infra related to latter not adhering to the C ABI due to their
special calling convention and, more importantly, bypassing compiler
control-flow integrity checking because they're written in asm
- Remove wrongly used static branches and other ugliness accumulated
over time in hyperv's hypercall implementation with a proper static
function call to the correct hypervisor call variant
- Add some fixes and modifications to allow running FRED-enabled kernels
in KVM even on non-FRED hardware
- Add kCFI improvements like validating indirect calls and prepare for
enabling kCFI with GCC. Add cmdline params documentation and other
code cleanups
- Use the single-byte 0xd6 insn as the official #UD single-byte
undefined opcode instruction as agreed upon by both x86 vendors
- Other smaller cleanups and touchups all over the place
-----BEGIN PGP SIGNATURE-----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=3Otb
-----END PGP SIGNATURE-----
Merge tag 'x86_core_for_v6.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull more x86 updates from Borislav Petkov:
- Remove a bunch of asm implementing condition flags testing in KVM's
emulator in favor of int3_emulate_jcc() which is written in C
- Replace KVM fastops with C-based stubs which avoids problems with the
fastop infra related to latter not adhering to the C ABI due to their
special calling convention and, more importantly, bypassing compiler
control-flow integrity checking because they're written in asm
- Remove wrongly used static branches and other ugliness accumulated
over time in hyperv's hypercall implementation with a proper static
function call to the correct hypervisor call variant
- Add some fixes and modifications to allow running FRED-enabled
kernels in KVM even on non-FRED hardware
- Add kCFI improvements like validating indirect calls and prepare for
enabling kCFI with GCC. Add cmdline params documentation and other
code cleanups
- Use the single-byte 0xd6 insn as the official #UD single-byte
undefined opcode instruction as agreed upon by both x86 vendors
- Other smaller cleanups and touchups all over the place
* tag 'x86_core_for_v6.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (24 commits)
x86,retpoline: Optimize patch_retpoline()
x86,ibt: Use UDB instead of 0xEA
x86/cfi: Remove __noinitretpoline and __noretpoline
x86/cfi: Add "debug" option to "cfi=" bootparam
x86/cfi: Standardize on common "CFI:" prefix for CFI reports
x86/cfi: Document the "cfi=" bootparam options
x86/traps: Clarify KCFI instruction layout
compiler_types.h: Move __nocfi out of compiler-specific header
objtool: Validate kCFI calls
x86/fred: KVM: VMX: Always use FRED for IRQs when CONFIG_X86_FRED=y
x86/fred: Play nice with invoking asm_fred_entry_from_kvm() on non-FRED hardware
x86/fred: Install system vector handlers even if FRED isn't fully enabled
x86/hyperv: Use direct call to hypercall-page
x86/hyperv: Clean up hv_do_hypercall()
KVM: x86: Remove fastops
KVM: x86: Convert em_salc() to C
KVM: x86: Introduce EM_ASM_3WCL
KVM: x86: Introduce EM_ASM_1SRC2
KVM: x86: Introduce EM_ASM_2CL
KVM: x86: Introduce EM_ASM_2W
...
version supports the =@ccCOND syntax
- Remove a bunch of AS_* Kconfig symbols which detect assembler support for
various instruction mnemonics now that the minimum assembler version
supports them all
- The usual cleanups all over the place
-----BEGIN PGP SIGNATURE-----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=dW6J
-----END PGP SIGNATURE-----
Merge tag 'x86_cleanups_for_v6.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 cleanups from Borislav Petkov:
- Simplify inline asm flag output operands now that the minimum
compiler version supports the =@ccCOND syntax
- Remove a bunch of AS_* Kconfig symbols which detect assembler support
for various instruction mnemonics now that the minimum assembler
version supports them all
- The usual cleanups all over the place
* tag 'x86_cleanups_for_v6.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/asm: Remove code depending on __GCC_ASM_FLAG_OUTPUTS__
x86/sgx: Use ENCLS mnemonic in <kernel/cpu/sgx/encls.h>
x86/mtrr: Remove license boilerplate text with bad FSF address
x86/asm: Use RDPKRU and WRPKRU mnemonics in <asm/special_insns.h>
x86/idle: Use MONITORX and MWAITX mnemonics in <asm/mwait.h>
x86/entry/fred: Push __KERNEL_CS directly
x86/kconfig: Remove CONFIG_AS_AVX512
crypto: x86 - Remove CONFIG_AS_VPCLMULQDQ
crypto: X86 - Remove CONFIG_AS_VAES
crypto: x86 - Remove CONFIG_AS_GFNI
x86/kconfig: Drop unused and needless config X86_64_SMP
preserve vmalloc allocations across handover.
-----BEGIN PGP SIGNATURE-----
iHUEABYKAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCaOmDWAAKCRDdBJ7gKXxA
jh+MAQDUPBj3mFm238CXI5DC1gJ3ETe3NJjJvfzIjLs51c+dFgD+PUuvDA0GUtKH
LCl6T+HJXh2FgGn1F2Kl/0hwPtEvuA4=
=HYr7
-----END PGP SIGNATURE-----
Merge tag 'mm-nonmm-stable-2025-10-10-15-03' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull more updates from Andrew Morton:
"Just one series here - Mike Rappoport has taught KEXEC handover to
preserve vmalloc allocations across handover"
* tag 'mm-nonmm-stable-2025-10-10-15-03' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
lib/test_kho: use kho_preserve_vmalloc instead of storing addresses in fdt
kho: add support for preserving vmalloc allocations
kho: replace kho_preserve_phys() with kho_preserve_pages()
kho: check if kho is finalized in __kho_preserve_order()
MAINTAINERS, .mailmap: update Umang's email address
All singletons, please see the changelogs for details.
-----BEGIN PGP SIGNATURE-----
iHUEABYKAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCaOmCTwAKCRDdBJ7gKXxA
jtQZAQC9sRd+4LNYothoXlY9avKNYR4YvN3ogiIFJqHwiENu/QD/ec/57KME9dA4
H4SqK/49Rs/tVCYmkPTO7IWRmxo9/AA=
=h9On
-----END PGP SIGNATURE-----
Merge tag 'mm-hotfixes-stable-2025-10-10-15-00' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull misc fixes from Andrew Morton:
"7 hotfixes. All 7 are cc:stable and all 7 are for MM.
All singletons, please see the changelogs for details"
* tag 'mm-hotfixes-stable-2025-10-10-15-00' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
mm: hugetlb: avoid soft lockup when mprotect to large memory area
fsnotify: pass correct offset to fsnotify_mmap_perm()
mm/ksm: fix flag-dropping behavior in ksm_madvise
mm/damon/vaddr: do not repeat pte_offset_map_lock() until success
mm/rmap: fix soft-dirty and uffd-wp bit loss when remapping zero-filled mTHP subpage to shared zeropage
mm/thp: fix MTE tag mismatch when replacing zero-filled subpages
memcg: skip cgroup_file_notify if spinning is not allowed
The fix to use a per CPU buffer to read user space tested only the writes
to trace_marker. But it appears that the selftests are missing tests to
the trace_maker_raw file. The trace_maker_raw file is used by applications
that writes data structures and not strings into the file, and the tools
read the raw ring buffer to process the structures it writes.
The fix that reads the per CPU buffers passes the new per CPU buffer to
the trace_marker file writes, but the update to the trace_marker_raw write
read the data from user space into the per CPU buffer, but then still used
then passed the user space address to the function that records the data.
Pass in the per CPU buffer and not the user space address.
TODO: Add a test to better test trace_marker_raw.
Cc: stable@vger.kernel.org
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Link: https://lore.kernel.org/20251011035243.386098147@kernel.org
Fixes: 64cf7d058a ("tracing: Have trace_marker use per-cpu data to read user space")
Reported-by: syzbot+9a2ede1643175f350105@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/all/68e973f5.050a0220.1186a4.0010.GAE@google.com/
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
After commit 5ab23c7923 ("modpost: Create modalias for builtin
modules"), relocatable RISC-V kernels with CONFIG_KASAN=y start failing
when attempting to strip the module device table symbols:
riscv64-linux-objcopy: not stripping symbol `__mod_device_table__kmod_irq_starfive_jh8100_intc__of__starfive_intc_irqchip_match_table' because it is named in a relocation
make[4]: *** [scripts/Makefile.vmlinux:97: vmlinux] Error 1
The relocation appears to come from .LASANLOC5 in .data.rel.local:
$ llvm-objdump --disassemble-symbols=.LASANLOC5 --disassemble-all -r drivers/irqchip/irq-starfive-jh8100-intc.o
drivers/irqchip/irq-starfive-jh8100-intc.o: file format elf64-littleriscv
Disassembly of section .data.rel.local:
0000000000000180 <.LASANLOC5>:
...
1d0: 0000 unimp
00000000000001d0: R_RISCV_64 __mod_device_table__kmod_irq_starfive_jh8100_intc__of__starfive_intc_irqchip_match_table
...
This section appears to come from GCC for including additional
information about global variables that may be protected by KASAN.
There appears to be no way to opt out of the generation of these symbols
through either a flag or attribute. Attempting to remove '.LASANLOC*'
with '--strip-symbol' results in the same error as above because these
symbols may refer to (thus have relocation between) each other.
Avoid this build breakage by switching to '--strip-unneeded-symbol' for
removing __mod_device_table__ symbols, as it will only remove the symbol
when there is no relocation pointing to it. While this may result in a
little more bloat in the symbol table in certain configurations, it is
not as bad as outright build failures.
Fixes: 5ab23c7923 ("modpost: Create modalias for builtin modules")
Reported-by: Charles Mirabile <cmirabil@redhat.com>
Closes: https://lore.kernel.org/20251007011637.2512413-1-cmirabil@redhat.com/
Suggested-by: Alexey Gladkov <legion@kernel.org>
Tested-by: Nicolas Schier <nsc@kernel.org>
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
amdgpu:
- DC DCE6 fixes
- GPU reset fixes
- Secure diplay messaging cleanup
- MES fix
- GPUVM locking fixes
- PMFW messaging cleanup
- PCI US/DS switch handling fix
- VCN queue reset fix
- DC FPU handling fix
- DCN 3.5 fix
- DC mirroring fix
amdkfd:
- Fix kfd process ref leak
- mmap write lock handling fix
- Fix comments in IOCTL
xe:
- Fix build with clang 16
- Fix handling of invalid configfs syntax usage and spell out the
expected syntax in the documentation
- Do not try late bind firmware when running as VF since it
shouldn't handle firmware loading
- Fix idle assertion for local BOs
- Fix uninitialized variable for late binding
- Do not require perfmon_capable to expose free memory at page
granularity. Handle it like other drm drivers do
- Fix lock handling on suspend error path
- Fix I2C controller resume after S3
v3d:
- fix fence locking
-----BEGIN PGP SIGNATURE-----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=tSAX
-----END PGP SIGNATURE-----
Merge tag 'drm-next-2025-10-11-1' of https://gitlab.freedesktop.org/drm/kernel
Pull more drm fixes from Dave Airlie:
"Just the follow up fixes for rc1 from the next branch, amdgpu and xe
mostly with a single v3d fix in there.
amdgpu:
- DC DCE6 fixes
- GPU reset fixes
- Secure diplay messaging cleanup
- MES fix
- GPUVM locking fixes
- PMFW messaging cleanup
- PCI US/DS switch handling fix
- VCN queue reset fix
- DC FPU handling fix
- DCN 3.5 fix
- DC mirroring fix
amdkfd:
- Fix kfd process ref leak
- mmap write lock handling fix
- Fix comments in IOCTL
xe:
- Fix build with clang 16
- Fix handling of invalid configfs syntax usage and spell out the
expected syntax in the documentation
- Do not try late bind firmware when running as VF since it shouldn't
handle firmware loading
- Fix idle assertion for local BOs
- Fix uninitialized variable for late binding
- Do not require perfmon_capable to expose free memory at page
granularity. Handle it like other drm drivers do
- Fix lock handling on suspend error path
- Fix I2C controller resume after S3
v3d:
- fix fence locking"
* tag 'drm-next-2025-10-11-1' of https://gitlab.freedesktop.org/drm/kernel: (34 commits)
drm/amd/display: Incorrect Mirror Cositing
drm/amd/display: Enable Dynamic DTBCLK Switch
drm/amdgpu: Report individual reset error
drm/amdgpu: partially revert "revert to old status lock handling v3"
drm/amd/display: Fix unsafe uses of kernel mode FPU
drm/amd/pm: Disable VCN queue reset on SMU v13.0.6 due to regression
drm/amdgpu: Fix general protection fault in amdgpu_vm_bo_reset_state_machine
drm/amdgpu: Check swus/ds for switch state save
drm/amdkfd: Fix two comments in kfd_ioctl.h
drm/amd/pm: Avoid interface mismatch messaging
drm/amdgpu: Merge amdgpu_vm_set_pasid into amdgpu_vm_init
drm/amd/amdgpu: Fix the mes version that support inv_tlbs
drm/amd: Check whether secure display TA loaded successfully
drm/amdkfd: Fix mmap write lock not release
drm/amdkfd: Fix kfd process ref leaking when userptr unmapping
drm/amdgpu: Fix for GPU reset being blocked by KIQ I/O.
drm/amd/display: Disable scaling on DCE6 for now
drm/amd/display: Properly disable scaling on DCE6
drm/amd/display: Properly clear SCL_*_FILTER_CONTROL on DCE6
drm/amd/display: Add missing DCE6 SCL_HORZ_FILTER_INIT* SRIs
...
nouveau:
- Return errno code from TTM move helper
vmwgfx:
- Fix null-ptr access in cursor code
- Fix UAF in validation
- Use correct iterator in validation
-----BEGIN PGP SIGNATURE-----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=ov4p
-----END PGP SIGNATURE-----
Merge tag 'drm-fixes-2025-10-11' of https://gitlab.freedesktop.org/drm/kernel
Pull drm fixes from Dave Airlie:
"Some fixes leftover from our fixes branch, just nouveau and vmwgfx:
nouveau:
- Return errno code from TTM move helper
vmwgfx:
- Fix null-ptr access in cursor code
- Fix UAF in validation
- Use correct iterator in validation"
* tag 'drm-fixes-2025-10-11' of https://gitlab.freedesktop.org/drm/kernel:
drm/nouveau: fix bad ret code in nouveau_bo_move_prep
drm/vmwgfx: Fix copy-paste typo in validation
drm/vmwgfx: Fix Use-after-free in validation
drm/vmwgfx: Fix a null-ptr access in the cursor snooper
- Allow child nodes on renesas-bsc bus binding
- Drop node name pattern on allwinner,sun50i-a64-de2 bus binding
- Switch DT patchwork to kernel.org from ozlabs.org
- Fix some typos in docs and bindings
- Fix reference count in PCI node unittest
-----BEGIN PGP SIGNATURE-----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=7vRd
-----END PGP SIGNATURE-----
Merge tag 'devicetree-fixes-for-6.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull devicetree fixes from Rob Herring:
- Allow child nodes on renesas-bsc bus binding
- Drop node name pattern on allwinner,sun50i-a64-de2 bus binding
- Switch DT patchwork to kernel.org from ozlabs.org
- Fix some typos in docs and bindings
- Fix reference count in PCI node unittest
* tag 'devicetree-fixes-for-6.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
dt-bindings: bus: renesas-bsc: allow additional properties
dt-bindings: bus: allwinner,sun50i-a64-de2: don't check node names
MAINTAINERS: Move DT patchwork to kernel.org
of: unittest: Fix device reference count leak in of_unittest_pci_node_verify
of: doc: Fix typo in doc comments.
dt-bindings: mmc: Correct typo "upto" to "up to"
Allow additional properties to enable devices attached to the bus.
Fixes warnings like these:
arch/arm/boot/dts/renesas/sh73a0-kzm9g.dtb: bus@fec10000 (renesas,bsc-sh73a0): Unevaluated properties are not allowed ('ethernet@10000000' was unexpected)
arch/arm/boot/dts/renesas/r8a73a4-ape6evm.dtb: bus@fec10000 (renesas,bsc-r8a73a4): Unevaluated properties are not allowed ('ethernet@8000000', 'flash@0' were unexpected)
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Node names are already and properly checked by the core schema. No need
to do it again.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
[robh: Also drop [A-F] in unit address]
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
issue (also affected userspace) of incorrect permissions being granted
to users who have access to multiple different CephFS instances within
the same cluster from Kotresh and a bunch of assorted CephFS fixes from
Slava.
-----BEGIN PGP SIGNATURE-----
iQFFBAABCAAxFiEEydHwtzie9C7TfviiSn/eOAIR84sFAmjpShsTHGlkcnlvbW92
QGdtYWlsLmNvbQAKCRBKf944AhHzizoaB/C7qTw5Olh8NDpX8I+ljEO50XNduurf
fp2eNn0ub5brhcvh8iACSPKE2oer/bDvv3b2SN9310GmBX3f7H2Ht5TeH2tGBRN0
clg+C2DmY/2watHovo+ua7YAd+HiPH2XMbpeU38Pu1nEdmiU6cQ0YaOn8n2p+c1E
bID0dMHWb4HTmFRURqWqKPDkM1fLHRxIVgyOMaov5vs0T7XdglwPja3S2W6epvqF
hKSMSvO/j9qYlOsBM6G6IuHDMJomzBqOQKqsQqC4XZN6uXeaKPTLYRnzxKfJUEWj
P5JTaum7NGGtfIs0L9wr6zpou/GY2zTFiyXhLZsLJMn894bBO5nArg==
=wGIB
-----END PGP SIGNATURE-----
Merge tag 'ceph-for-6.18-rc1' of https://github.com/ceph/ceph-client
Pull ceph updates from Ilya Dryomov:
- some messenger improvements (Eric and Max)
- address an issue (also affected userspace) of incorrect permissions
being granted to users who have access to multiple different CephFS
instances within the same cluster (Kotresh)
- a bunch of assorted CephFS fixes (Slava)
* tag 'ceph-for-6.18-rc1' of https://github.com/ceph/ceph-client:
ceph: add bug tracking system info to MAINTAINERS
ceph: fix multifs mds auth caps issue
ceph: cleanup in ceph_alloc_readdir_reply_buffer()
ceph: fix potential NULL dereference issue in ceph_fill_trace()
libceph: add empty check to ceph_con_get_out_msg()
libceph: pass the message pointer instead of loading con->out_msg
libceph: make ceph_con_get_out_msg() return the message pointer
ceph: fix potential race condition on operations with CEPH_I_ODIRECT flag
ceph: refactor wake_up_bit() pattern of calling
ceph: fix potential race condition in ceph_ioctl_lazyio()
ceph: fix overflowed constant issue in ceph_do_objects_copy()
ceph: fix wrong sizeof argument issue in register_session()
ceph: add checking of wait_for_completion_killable() return value
ceph: make ceph_start_io_*() killable
libceph: Use HMAC-SHA256 library instead of crypto_shash
-----BEGIN PGP SIGNATURE-----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=/qIG
-----END PGP SIGNATURE-----
Merge tag 'v6.18-rc-part2-smb-client-fixes' of git://git.samba.org/sfrench/cifs-2.6
Pull more smb client updates from Steve French:
- fix i_size in fallocate
- two truncate fixes
- utime fix
- minor cleanups
- SMB1 fixes
- improve error check in read
- improve perf of copy file_range (copy_chunk)
* tag 'v6.18-rc-part2-smb-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
cifs: update internal version number
cifs: Add comments for DeletePending assignments in open functions
cifs: Add fallback code path for cifs_mkdir_setinfo()
cifs: Allow fallback code in smb_set_file_info() also for directories
cifs: Query EA $LXMOD in cifs_query_path_info() for WSL reparse points
smb: client: remove cfids_invalidation_worker
smb: client: remove redudant assignment in cifs_strict_fsync()
smb: client: fix race with fallocate(2) and AIO+DIO
smb: client: fix missing timestamp updates after utime(2)
smb: client: fix missing timestamp updates after ftruncate(2)
smb: client: fix missing timestamp updates with O_TRUNC
cifs: Fix copy_to_iter return value check
smb: client: batch SRV_COPYCHUNK entries to cut round trips
smb: client: Omit an if branch in smb2_find_smb_tcon()
smb: client: Return directly after a failed genlmsg_new() in cifs_swn_send_register_message()
smb: client: Use common code in cifs_do_create()
smb: client: Improve unlocking of a mutex in cifs_get_swn_reg()
smb: client: Return a status code only as a constant in cifs_spnego_key_instantiate()
smb: client: Use common code in cifs_lookup()
smb: client: Reduce the scopes for a few variables in two functions
- minor cleanups
-----BEGIN PGP SIGNATURE-----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=ZBiX
-----END PGP SIGNATURE-----
Merge tag 'xtensa-20251010' of https://github.com/jcmvbkbc/linux-xtensa
Pull Xtensa updates from Max Filippov:
- minor cleanups
* tag 'xtensa-20251010' of https://github.com/jcmvbkbc/linux-xtensa:
xtensa: use HZ_PER_MHZ in platform_calibrate_ccount
xtensa: simdisk: add input size check in proc_write_simdisk
-----BEGIN PGP SIGNATURE-----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=/1jf
-----END PGP SIGNATURE-----
Merge tag 'block-6.18-20251009' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux
Pull block fixes from Jens Axboe:
- Don't include __GFP_NOWARN for loop worker allocation, as it already
uses GFP_NOWAIT which has __GFP_NOWARN set already
- Small series cleaning up the recent bio_iov_iter_get_pages() changes
- loop fix for leaking the backing reference file, if validation fails
- Update of a comment pertaining to disk/partition stat locking
* tag 'block-6.18-20251009' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux:
loop: remove redundant __GFP_NOWARN flag
block: move bio_iov_iter_get_bdev_pages to block/fops.c
iomap: open code bio_iov_iter_get_bdev_pages
block: rename bio_iov_iter_get_pages_aligned to bio_iov_iter_get_pages
block: remove bio_iov_iter_get_pages
block: Update a comment of disk statistics
loop: fix backing file reference leak on validation error
-----BEGIN PGP SIGNATURE-----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=p4O+
-----END PGP SIGNATURE-----
Merge tag 'io_uring-6.18-20251009' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux
Pull io_uring fixes from Jens Axboe:
- Fixup indentation in the UAPI header
- Two fixes for zcrx. One fixes receiving too much in some cases, and
the other deals with not correctly incrementing the source in the
fallback copy loop
- Fix for a race in the IORING_OP_WAITID command, where there was a
small window where the request would be left on the wait_queue_head
list even though it was being canceled/completed
- Update liburing git URL in the kernel tree
* tag 'io_uring-6.18-20251009' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux:
io_uring/zcrx: increment fallback loop src offset
io_uring/zcrx: fix overshooting recv limit
io_uring: use tab indentation for IORING_SEND_VECTORIZED comment
io_uring/waitid: always prune wait queue entry in io_waitid_wait()
io_uring: update liburing git URL
This is a series to address some problems that were exposed by the
recent modules.builtin.modinfo series that landed in commit c7d3dd9163
("Merge patch series "Add generated modalias to
modules.builtin.modinfo"").
The third patch is not directly related to the aforementioned series, as
the warning it fixes happens prior to the series but commit 8d18ef04f9
("s390: vmlinux.lds.S: Reorder sections") from the series creates
conflicts in this area, so I included it here.
Link: https://patch.msgid.link/20251008-kbuild-fix-modinfo-regressions-v1-0-9fc776c5887c@kernel.org
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
