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git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 updates from Alexander Gordeev:
- Select config option KASAN_VMALLOC if KASAN is enabled
- Select config option VMAP_STACK unconditionally
- Implement arch_atomic_inc() / arch_atomic_dec() functions which
result in a single instruction if compiled for z196 or newer
architectures
- Make layering between atomic.h and atomic_ops.h consistent
- Comment s390 preempt_count implementation
- Remove pre MARCH_HAS_Z196_FEATURES preempt count implementation
- GCC uses the number of lines of an inline assembly to calculate
number of instructions and decide on inlining. Therefore remove
superfluous new lines from a couple of inline assemblies.
- Provide arch_atomic_*_and_test() implementations that allow the
compiler to generate slightly better code.
- Optimize __preempt_count_dec_and_test()
- Remove __bootdata annotations from declarations in header files
- Add missing include of <linux/smp.h> in abs_lowcore.h to provide
declarations for get_cpu() and put_cpu() used in the code
- Fix suboptimal kernel image base when running make kasan.config
- Remove huge_pte_none() and huge_pte_none_mostly() as are identical to
the generic variants
- Remove unused PAGE_KERNEL_EXEC, SEGMENT_KERNEL_EXEC, and
REGION3_KERNEL_EXEC defines
- Simplify noexec page protection handling and change the page, segment
and region3 protection definitions automatically if the instruction
execution-protection facility is not available
- Save one instruction and prefer EXRL instruction over EX in string,
xor_*(), amode31 and other functions
- Create /dev/diag misc device to fetch diagnose specific information
from the kernel and provide it to userspace
- Retrieve electrical power readings using DIAGNOSE 0x324 ioctl
- Make ccw_device_get_ciw() consistent and use array indices instead of
pointer arithmetic
- s390/qdio: Move memory alloc/pointer arithmetic for slib and sl into
one place
- The sysfs core now allows instances of 'struct bin_attribute' to be
moved into read-only memory. Make use of that in s390 code
- Add missing TLB range adjustment in pud_free_tlb()
- Improve topology setup by adding early polarization detection
- Fix length checks in codepage_convert() function
- The generic bitops implementation is nearly identical to the s390
one. Switch to the generic variant and decrease a bit the kernel
image size
- Provide an optimized arch_test_bit() implementation which makes use
of flag output constraint. This generates slightly better code
- Provide memory topology information obtanied with DIAGNOSE 0x310
using ioctl.
- Various other small improvements, fixes, and cleanups
Also, some changes came in through a merge of 'pci-device-recovery'
branch:
- Add PCI error recovery status mechanism
- Simplify and document debug_next_entry() logic
- Split private data allocation and freeing out of debug file open()
and close() operations
- Add debug_dump() function that gets a textual representation of a
debug info (e.g. PCI recovery hardware error logs)
- Add formatted content of pci_debug_msg_id to the PCI report
* tag 's390-6.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (48 commits)
s390/futex: Fix FUTEX_OP_ANDN implementation
s390/diag: Add memory topology information via diag310
s390/bitops: Provide optimized arch_test_bit()
s390/bitops: Switch to generic bitops
s390/ebcdic: Fix length decrement in codepage_convert()
s390/ebcdic: Fix length check in codepage_convert()
s390/ebcdic: Use exrl instead of ex
s390/amode31: Use exrl instead of ex
s390/stackleak: Use exrl instead of ex in __stackleak_poison()
s390/lib: Use exrl instead of ex in xor functions
s390/topology: Improve topology detection
s390/tlb: Add missing TLB range adjustment
s390/pkey: Constify 'struct bin_attribute'
s390/sclp: Constify 'struct bin_attribute'
s390/pci: Constify 'struct bin_attribute'
s390/ipl: Constify 'struct bin_attribute'
s390/crypto/cpacf: Constify 'struct bin_attribute'
s390/qdio: Move memory alloc/pointer arithmetic for slib and sl into one place
s390/cio: Use array indices instead of pointer arithmetic
s390/qdio: Rename feature flag aif_osa to aif_qdio
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Pull io_uring updates from Jens Axboe:
"Not a lot in terms of features this time around, mostly just cleanups
and code consolidation:
- Support for PI meta data read/write via io_uring, with NVMe and
SCSI covered
- Cleanup the per-op structure caching, making it consistent across
various command types
- Consolidate the various user mapped features into a concept called
regions, making the various users of that consistent
- Various cleanups and fixes"
* tag 'for-6.14/io_uring-20250119' of git://git.kernel.dk/linux: (56 commits)
io_uring/fdinfo: fix io_uring_show_fdinfo() misuse of ->d_iname
io_uring: reuse io_should_terminate_tw() for cmds
io_uring: Factor out a function to parse restrictions
io_uring/rsrc: require cloned buffers to share accounting contexts
io_uring: simplify the SQPOLL thread check when cancelling requests
io_uring: expose read/write attribute capability
io_uring/rw: don't gate retry on completion context
io_uring/rw: handle -EAGAIN retry at IO completion time
io_uring/rw: use io_rw_recycle() from cleanup path
io_uring/rsrc: simplify the bvec iter count calculation
io_uring: ensure io_queue_deferred() is out-of-line
io_uring/rw: always clear ->bytes_done on io_async_rw setup
io_uring/rw: use NULL for rw->free_iovec assigment
io_uring/rw: don't mask in f_iocb_flags
io_uring/msg_ring: Drop custom destructor
io_uring: Move old async data allocation helper to header
io_uring/rw: Allocate async data through helper
io_uring/net: Allocate msghdr async data through helper
io_uring/uring_cmd: Allocate async data through generic helper
io_uring/poll: Allocate apoll with generic alloc_cache helper
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Pull block updates from Jens Axboe:
- NVMe pull requests via Keith:
- Target support for PCI-Endpoint transport (Damien)
- TCP IO queue spreading fixes (Sagi, Chaitanya)
- Target handling for "limited retry" flags (Guixen)
- Poll type fix (Yongsoo)
- Xarray storage error handling (Keisuke)
- Host memory buffer free size fix on error (Francis)
- MD pull requests via Song:
- Reintroduce md-linear (Yu Kuai)
- md-bitmap refactor and fix (Yu Kuai)
- Replace kmap_atomic with kmap_local_page (David Reaver)
- Quite a few queue freeze and debugfs deadlock fixes
Ming introduced lockdep support for this in the 6.13 kernel, and it
has (unsurprisingly) uncovered quite a few issues
- Use const attributes for IO schedulers
- Remove bio ioprio wrappers
- Fixes for stacked device atomic write support
- Refactor queue affinity helpers, in preparation for better supporting
isolated CPUs
- Cleanups of loop O_DIRECT handling
- Cleanup of BLK_MQ_F_* flags
- Add rotational support for null_blk
- Various fixes and cleanups
* tag 'for-6.14/block-20250118' of git://git.kernel.dk/linux: (106 commits)
block: Don't trim an atomic write
block: Add common atomic writes enable flag
md/md-linear: Fix a NULL vs IS_ERR() bug in linear_add()
block: limit disk max sectors to (LLONG_MAX >> 9)
block: Change blk_stack_atomic_writes_limits() unit_min check
block: Ensure start sector is aligned for stacking atomic writes
blk-mq: Move more error handling into blk_mq_submit_bio()
block: Reorder the request allocation code in blk_mq_submit_bio()
nvme: fix bogus kzalloc() return check in nvme_init_effects_log()
md/md-bitmap: move bitmap_{start, end}write to md upper layer
md/raid5: implement pers->bitmap_sector()
md: add a new callback pers->bitmap_sector()
md/md-bitmap: remove the last parameter for bimtap_ops->endwrite()
md/md-bitmap: factor behind write counters out from bitmap_{start/end}write()
md: Replace deprecated kmap_atomic() with kmap_local_page()
md: reintroduce md-linear
partitions: ldm: remove the initial kernel-doc notation
blk-cgroup: rwstat: fix kernel-doc warnings in header file
blk-cgroup: fix kernel-doc warnings in header file
nbd: fix partial sending
...
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In case of possible unpredictably large arguments passed to
rose_setsockopt() and multiplied by extra values on top of that,
integer overflows may occur.
Do the safest minimum and fix these issues by checking the
contents of 'opt' and returning -EINVAL if they are too large. Also,
switch to unsigned int and remove useless check for negative 'opt'
in ROSE_IDLE case.
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Nikita Zhandarovich <n.zhandarovich@fintech.ru>
Link: https://patch.msgid.link/20250115164220.19954-1-n.zhandarovich@fintech.ru
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Some PHYs don't support clause 45 access, and return -EOPNOTSUPP from
phy_modify_mmd(), which causes phylink_bringup_phy() to fail. Prevent
this failure by allowing -EOPNOTSUPP to also mean success.
Reported-by: Jiawen Wu <jiawenwu@trustnetic.com>
Tested-by: Jiawen Wu <jiawenwu@trustnetic.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/E1tZp1a-001V62-DT@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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'net-ethernet-ti-am65-cpsw-streamline-rx-tx-queue-creation-and-cleanup'
Roger Quadros says:
====================
net: ethernet: ti: am65-cpsw: streamline RX/TX queue creation and cleanup
In this series we fix an issue with missing cleanups during
error path of am65_cpsw_nuss_init_tx/rx_chns() when used anywhere
other than at probe().
Then we streamline RX and TX queue creation and cleanup. The queues
can now be created or destroyed by calling the appropriate
functions am65_cpsw_create_rxqs/txqs() and am65_cpsw_destroy_rxq/txqs().
v1: https://lore.kernel.org/20250115-am65-cpsw-streamline-v1-0-326975c36935@kernel.org
====================
Link: https://patch.msgid.link/20250117-am65-cpsw-streamline-v2-0-91a29c97e569@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Introduce am65_cpsw_create_txqs() and am65_cpsw_destroy_txqs()
and use them.
Signed-off-by: Roger Quadros <rogerq@kernel.org>
Link: https://patch.msgid.link/20250117-am65-cpsw-streamline-v2-3-91a29c97e569@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Introduce am65_cpsw_create_rxqs() and am65_cpsw_destroy_rxqs()
and use them.
Signed-off-by: Roger Quadros <rogerq@kernel.org>
Link: https://patch.msgid.link/20250117-am65-cpsw-streamline-v2-2-91a29c97e569@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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We are missing netif_napi_del() and am65_cpsw_nuss_free_tx/rx_chns()
in error path when am65_cpsw_nuss_init_tx/rx_chns() is used anywhere
other than at probe(). i.e. am65_cpsw_nuss_update_tx_rx_chns and
am65_cpsw_nuss_resume()
As reported, in am65_cpsw_nuss_update_tx_rx_chns(),
if am65_cpsw_nuss_init_tx_chns() partially fails then
devm_add_action(dev, am65_cpsw_nuss_free_tx_chns,..) is added
but the cleanup via am65_cpsw_nuss_free_tx_chns() will not run.
Same issue exists for am65_cpsw_nuss_init_tx/rx_chns() failures
in am65_cpsw_nuss_resume() as well.
This would otherwise require more instances of devm_add/remove_action
and is clearly more of a distraction than any benefit.
So, drop devm_add/remove_action for am65_cpsw_nuss_free_tx/rx_chns()
and call am65_cpsw_nuss_free_tx/rx_chns() and netif_napi_del()
where required.
Reported-by: Siddharth Vadapalli <s-vadapalli@ti.com>
Closes: https://lore.kernel.org/all/m4rhkzcr7dlylxr54udyt6lal5s2q4krrvmyay6gzgzhcu4q2c@r34snfumzqxy/
Signed-off-by: Roger Quadros <rogerq@kernel.org>
Link: https://patch.msgid.link/20250117-am65-cpsw-streamline-v2-1-91a29c97e569@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm
Pull dlm updates from David Teigland:
- Fix a case where the new scanning code missed removing an unused rsb
- Fix the error when removing a configfs entry for an invalid node id
* tag 'dlm-6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm:
dlm: return -ENOENT if no comm was found
dlm: fix srcu_read_lock() return type to int
dlm: fix removal of rsb struct that is master and dir record
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Pull bcachefs updates from Kent Overstreet:
"Lots of scalability work, another big on-disk format change. On-disk
format version goes from 1.13 to 1.20.
Like 6.11, this is another big and expensive automatic/required on
disk format upgrade. This is planned to be the last big on disk format
upgrade before the experimental label comes off. There will be one
more minor on disk format update for a few things that couldn't make
this release.
Headline improvements:
- Self healing work:
Allocator and reflink now run the exact same check/repair code that
fsck does at runtime, where applicable.
The long term goal here is to remove inconsistent() errors (that
cause us to go emergency read only) by lifting fsck code up to
normal runtime paths; we should only go emergency read-only if we
detect an inconsistency that was due to a runtime bug - or truly
catastrophic damage (corrupted btree roots/interior nodes).
- Reflink repair no longer deletes reflink pointers:
Instead we flip an error bit and log the error, and they can still
be deleted by file deletion. This means a temporary failure to find
an indirect extent (perhaps repaired later by btree node scan)
won't result in unnecessary data loss
- Improvements to rebalance data path option handling:
We can now correctly apply changed filesystem-level io path options
to pending rebalance work, and soon we'll be able to apply
file-level io path option changes to indirect extents
- Fix mount time regression that some users encountered post the 6.11
disk accounting rewrite.
Accounting keys were encoded little endian (typetag in the low
bits) - which didn't anticipate adding accounting keys for every
inode, which aren't stored in memory and we don't want to scan at
mount time.
- fsck time on large filesystems is improved by multiple orders of
magnitude. Previously, 100TB was about the practical max filesystem
size, where users were reporting fsck times of a day+. With the new
changes (which nearly eliminate backpointers fsck overhead), we
fsck'd a filesystem with 10PB of data in 1.5 hours.
The problematic fsck passes were walking every extent and checking
for missing backpointers, and walking every backpointer to check
for dangling backpointers. As we've been adding more and more
runtime self healing there was no reason to keep around the
backpointers -> extents pass; dangling backpointers are just
deleted, and we can do that when using them - thus, backpointers ->
extents is now only run in debug mode.
extents -> backpointers does need to exist, since missing
backpointers would mean we can't find data to move it (for e.g.
copygc, device evacuate, scrub). But the new on disk format version
makes possible a new strategy where we sum up backpointers within a
bucket and check it against the bucket sector counts, and then only
scan for missing backpointers if the counts are off (and then, only
for specific buckets).
Full list of on disk format changes:
- 1.14: backpointer_bucket_gen
Backpointers now have a field for the bucket generation number,
replacing the obsolete bucket_offset field. This is needed for the
new "sum up backpointers within a bucket" code, since backpointers
use the btree write buffer - meaning we will see stale reads, and
this runs online, with the filesystem in full rw mode.
- 1.15: disk_accounting_big_endian
As previously described, fix the endianness of accounting keys so
that accounting keys with the same typetag sort together, and
accounting read can skip types it's not interested in.
- 1.16: reflink_p_may_update_opts:
This version indicates that a new reflink pointer field is
understood and may be used; the field indicates whether the reflink
pointer has permissions to update IO path options (e.g.
compression, replicas) may be updated on the indirect extent it
points to.
This completes the rebalance/reflink data path option handling from
the 6.13 pull request.
- 1.17: inode_depth
Add a new inode field, bi_depth, to accelerate the
check_directory_structure fsck path, which checks for loops in the
filesystem heirarchy.
check_inodes and check_dirents check connectivity, so
check_directory_structure only has to check for loops - by walking
back up to the root from every directory.
But a path can't be a loop if it has a counter that increases
monotonically from root to leaf - adding a depth counter means that
we can check for loops with only local (parent -> child) checks. We
might need to occasionally renumber the depth field in fsck if
directories have been moved around, but then future fsck runs will
be much faster.
- 1.18: persistent_inode_cursors
Previously, the cursor used for inode allocation was only kept in
memory, which meant that users with large filesystems and lots of
files were reporting that the first create after mounting would
take awhile - since it had to scan from the start.
Inode allocation cursors are now persistent, and also include a
generation field (incremented on wraparound, which will only happen
if inode allocation is restricted to 32 bit inodes), so that we
don't have to leave inode_generation keys around after a delete.
The option for 32 bit inode numbers may now also be set on
individual directories, and non-32 bit inode allocations are
disallowed from allocating from the 32 bit part of the inode number
space.
- 1.19: autofix_errors
Runtime self healing is now the default.o
- 1.20: directory size (from Hongbo)
directory i_size is now meaningful, and not 0"
* tag 'bcachefs-2025-01-20.2' of git://evilpiepirate.org/bcachefs: (268 commits)
bcachefs: Fix check_inode_hash_info_matches_root()
bcachefs: Document issue with bch_stripe layout
bcachefs: Fix self healing on read error
bcachefs: Pop all the transactions from the abort one
bcachefs: Only abort the transactions in the cycle
bcachefs: Introduce lock_graph_pop_from
bcachefs: Convert open-coded lock_graph_pop_all to helper
bcachefs: Do not allow no fail lock request to fail
bcachefs: Merge the condition to avoid additional invocation
Revert "bcachefs: Fix bch2_btree_node_upgrade()"
bcachefs: bcachefs_metadata_version_directory_size
bcachefs: make directory i_size meaningful
bcachefs: check_unreachable_inodes is not actually PASS_ONLINE yet
bcachefs: Don't use BTREE_ITER_cached when walking alloc btree during fsck
bcachefs: Check for dirents to overwritten inodes
bcachefs: bch2_btree_iter_peek_slot() handles navigating to nonexistent depth
bcachefs: Don't set btree_path to updtodate if we don't fill
bcachefs: __bch2_btree_pos_to_text()
bcachefs: printbuf_reset() handles tabstops
bcachefs: Silence read-only errors when deleting snapshots
...
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git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull pstore updates from Kees Cook:
- pstore/blk: trivial typo fixes (Eugen Hristev)
- pstore/zone: reject zero-sized allocations (Eugen Hristev)
* tag 'pstore-v6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
pstore/zone: avoid dereferencing zero sized ptr after init zones
pstore/blk: trivial typo fixes
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git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull execve updates from Kees Cook:
- fix up /proc/pid/comm in the execveat(AT_EMPTY_PATH) case (Tycho
Andersen, Kees Cook)
- binfmt_misc: Fix comment typos (Christophe JAILLET)
- move empty argv[0] warning closer to actual logic (Nir Lichtman)
- remove legacy custom binfmt modules autoloading (Nir Lichtman)
- Make sure set_task_comm() always NUL-terminates
- binfmt_flat: Fix integer overflow bug on 32 bit systems (Dan
Carpenter)
- coredump: Do not lock when copying "comm"
- MAINTAINERS: add auxvec.h and set myself as maintainer
* tag 'execve-v6.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
binfmt_flat: Fix integer overflow bug on 32 bit systems
selftests/exec: add a test for execveat()'s comm
exec: fix up /proc/pid/comm in the execveat(AT_EMPTY_PATH) case
exec: Make sure task->comm is always NUL-terminated
exec: remove legacy custom binfmt modules autoloading
exec: move warning of null argv to be next to the relevant code
fs: binfmt: Fix a typo
MAINTAINERS: exec: Mark Kees as maintainer
MAINTAINERS: exec: Add auxvec.h UAPI
coredump: Do not lock during 'comm' reporting
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git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs updates from David Sterba:
"User visible changes, features:
- rebuilding of the free space tree at mount time is done in more
transactions, fix potential hangs when the transaction thread is
blocked due to large amount of block groups
- more read IO balancing strategies (experimental config), add two
new ways how to select a device for read if the profiles allow that
(all RAID1*), the current default selects the device by pid which
is good on average but less performant for single reader workloads
- select preferred device for all reads (namely for testing)
- round-robin, balance reads across devices relevant for the
requested IO range
- add encoded write ioctl support to io_uring (read was added in
6.12), basis for writing send stream using that instead of
syscalls, non-blocking mode is not yet implemented
- support FS_IOC_READ_VERITY_METADATA, applications can use the
metadata to do their own verification
- pass inode's i_write_hint to bios, for parity with other
filesystems, ioctls F_GET_RW_HINT/F_SET_RW_HINT
Core:
- in zoned mode: allow to directly reclaim a block group by simply
resetting it, then it can be reused and another block group does
not need to be allocated
- super block validation now also does more comprehensive sys array
validation, adding it to the points where superblock is validated
(post-read, pre-write)
- subpage mode fixes:
- fix double accounting of blocks due to some races
- improved or fixed error handling in a few cases (compression,
delalloc)
- raid stripe tree:
- fix various cases with extent range splitting or deleting
- implement hole punching to extent range
- reduce number of stripe tree lookups during bio submission
- more self-tests
- updated self-tests (delayed refs)
- error handling improvements
- cleanups, refactoring
- remove rest of backref caching infrastructure from relocation,
not needed anymore
- error message updates
- remove unnecessary calls when extent buffer was marked dirty
- unused parameter removal
- code moved to new files
Other code changes: add rb_find_add_cached() to the rb-tree API"
* tag 'for-6.14-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (127 commits)
btrfs: selftests: add a selftest for deleting two out of three extents
btrfs: selftests: add test for punching a hole into 3 RAID stripe-extents
btrfs: selftests: add selftest for punching holes into the RAID stripe extents
btrfs: selftests: test RAID stripe-tree deletion spanning two items
btrfs: selftests: don't split RAID extents in half
btrfs: selftests: check for correct return value of failed lookup
btrfs: don't use btrfs_set_item_key_safe on RAID stripe-extents
btrfs: implement hole punching for RAID stripe extents
btrfs: fix deletion of a range spanning parts two RAID stripe extents
btrfs: fix tail delete of RAID stripe-extents
btrfs: fix front delete range calculation for RAID stripe extents
btrfs: assert RAID stripe-extent length is always greater than 0
btrfs: don't try to delete RAID stripe-extents if we don't need to
btrfs: selftests: correct RAID stripe-tree feature flag setting
btrfs: add io_uring interface for encoded writes
btrfs: remove the unused locked_folio parameter from btrfs_cleanup_ordered_extents()
btrfs: add extra error messages for delalloc range related errors
btrfs: subpage: dump the involved bitmap when ASSERT() failed
btrfs: subpage: fix the bitmap dump of the locked flags
btrfs: do proper folio cleanup when run_delalloc_nocow() failed
...
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git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2
Pull gfs2 updates from Andreas Gruenbacher:
- In the quota code, to avoid spurious audit messages, don't call
capable() when quotas are off
- When changing the 'j' flag of an inode, truncate the inode address
space to avoid mixing "buffer head" and "iomap" pages
* tag 'gfs2-for-6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2:
gfs2: Truncate address space when flipping GFS2_DIF_JDATA flag
gfs2: reorder capability check last
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Kuniyuki Iwashima says:
====================
ipv6: Convert RTM_{NEW,DEL}ADDR and more to per-netns RTNL.
This series converts RTM_NEWADDR/RTM_DELADDR and some more
RTNL users in addrconf.c to per-netns RTNL.
v1: https://lore.kernel.org/20250114080516.46155-1-kuniyu@amazon.com
====================
Link: https://patch.msgid.link/20250115080608.28127-1-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Let's register inet6_rtm_deladdr() with RTNL_FLAG_DOIT_PERNET and
hold rtnl_net_lock() before inet6_addr_del().
Now that inet6_addr_del() is always called under per-netns RTNL.
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://patch.msgid.link/20250115080608.28127-12-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Let's register inet6_rtm_newaddr() with RTNL_FLAG_DOIT_PERNET
and hold rtnl_net_lock() before __dev_get_by_index().
Now that inet6_addr_add() and inet6_addr_modify() are always
called under per-netns RTNL.
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://patch.msgid.link/20250115080608.28127-11-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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inet6_addr_add() and inet6_addr_modify() have the same code to validate
IPv6 lifetime that is done under RTNL.
Let's factorise it out to inet6_rtm_newaddr() so that we can validate
the lifetime without RTNL later.
Note that inet6_addr_add() is called from addrconf_add_ifaddr(), but the
lifetime is INFINITY_LIFE_TIME in the path, so expires and flags are 0.
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://patch.msgid.link/20250115080608.28127-10-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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We will convert inet6_rtm_newaddr() to per-netns RTNL.
Except for IFA_F_OPTIMISTIC, cfg.ifa_flags can be set before
__dev_get_by_index().
Let's move ifa_flags setup before __dev_get_by_index() so that
we can set ifa_flags without RTNL.
Also, now it's moved before tb[IFA_CACHEINFO] in preparing for
the next patch.
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://patch.msgid.link/20250115080608.28127-9-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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inet6_addr_add() is called from inet6_rtm_newaddr() and
addrconf_add_ifaddr().
inet6_addr_add() looks up dev by __dev_get_by_index(), but
it's already done in inet6_rtm_newaddr().
Let's move the 2nd lookup to addrconf_add_ifaddr() and pass
dev to inet6_addr_add().
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://patch.msgid.link/20250115080608.28127-8-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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These functions are called from inet6_ioctl() with a socket's netns
and hold RTNL.
* SIOCSIFADDR : addrconf_add_ifaddr()
* SIOCDIFADDR : addrconf_del_ifaddr()
* SIOCSIFDSTADDR : addrconf_set_dstaddr()
Let's use rtnl_net_lock().
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://patch.msgid.link/20250115080608.28127-7-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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addrconf_init() holds RTNL for blackhole_netdev, which is the global
device in init_net.
addrconf_cleanup() holds RTNL to clean up devices in init_net too.
Let's use rtnl_net_lock(&init_net) there.
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://patch.msgid.link/20250115080608.28127-6-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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addrconf_dad_work() is per-address work and holds RTNL internally.
We can fetch netns as dev_net(ifp->idev->dev).
Let's use rtnl_net_lock().
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://patch.msgid.link/20250115080608.28127-5-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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addrconf_verify_work() is per-netns work to call addrconf_verify_rtnl()
under RTNL.
Let's use rtnl_net_lock().
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://patch.msgid.link/20250115080608.28127-4-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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net.ipv6.conf.${DEV}.XXX sysctl are changed under RTNL:
* forwarding
* ignore_routes_with_linkdown
* disable_ipv6
* proxy_ndp
* addr_gen_mode
* stable_secret
* disable_policy
Let's use rtnl_net_lock() there.
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://patch.msgid.link/20250115080608.28127-3-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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We will convert rtnl_lock() with rtnl_net_lock(), and we want to
convert __in6_dev_get() too.
__in6_dev_get() uses rcu_dereference_rtnl(), but as written in its
comment, rtnl_dereference() or rcu_dereference() is preferable.
Let's add __in6_dev_get_rtnl_net() that uses rtnl_net_dereference().
We can add the RCU version helper later if needed.
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://patch.msgid.link/20250115080608.28127-2-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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After commit df542f669307 ("net: stmmac: Switch to zero-copy in
non-XDP RX path"), SKBs are always marked for recycle, it is redundant
to mark SKBs more than once when new frags are appended.
Signed-off-by: Furong Xu <0x1207@gmail.com>
Link: https://patch.msgid.link/20250117062805.192393-1-0x1207@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Two different models of usb card, the drivers are r8152 and asix. If no
network cable is connected, Speed = 10Mb/s. This problem is repeated in
linux 3.10, 4.19, 5.4, 6.12. This problem also exists on the latest
kernel. Both drivers call mii_ethtool_get_link_ksettings,
but the value of cmd->base.speed in this
function can only be SPEED_1000 or SPEED_100 or SPEED_10.
When the network cable is not connected, set cmd->base.speed
=SPEED_UNKNOWN.
Signed-off-by: Xiangqian Zhang <zhangxiangqian@kylinos.cn>
Link: https://patch.msgid.link/20250117094603.4192594-1-zhangxiangqian@kylinos.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Since dccp and llc makefiles already check sysctl code
compilation with xxx-$(CONFIG_SYSCTL)
we can drop the checks
Signed-off-by: Denis Kirjanov <kirjanov@gmail.com>
Link: https://patch.msgid.link/20250119134254.19250-1-kirjanov@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-next
Pablo Neira Ayuso says:
====================
Netfilter updates for net-next
The following batch contains Netfilter updates for net-next:
1) Unbreak set size settings for rbtree set backend, intervals in
rbtree are represented as two elements, this detailed is leaked
to userspace leading to bogus ENOSPC from control plane.
2) Remove dead code in br_netfilter's br_nf_pre_routing_finish()
due to never matching error when looking up for route,
from Antoine Tenart.
3) Simplify check for device already in use in flowtable,
from Phil Sutter.
4) Three patches to restore interface name field in struct nft_hook
and use it, this is to prepare for wildcard interface support.
From Phil Sutter.
5) Do not remove netdev basechain when last device is gone, this is
for consistency with the flowtable behaviour. This allows for netdev
basechains without devices. Another patch to simplify netdev event
notifier after this update. Also from Phil.
6) Two patches to add missing spinlock when flowtable updates TCP
state flags, from Florian Westphal.
7) Simplify __nf_ct_refresh_acct() by removing skbuff parameter,
also from Florian.
8) Flowtable gc now extends ct timeout for offloaded flow. This
is to address a possible race that leads to handing over flow
to classic path with long ct timeouts.
9) Tear down flow if cached rt_mtu is stale, before this patch,
packet is handed over to classic path but flow entry still remained
in place.
10) Revisit the flowtable teardown strategy, which was originally
designed to release flowtable hardware entries early. Add a new
CLOSING flag that still allows hardware to release entries when
fin/rst is seen, but keeps the flow entry in place when the
TCP connection is closed. Release flow after timeout or when a new
syn packet is seen for TCP reopen scenario.
* tag 'nf-next-25-01-19' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-next:
netfilter: flowtable: add CLOSING state
netfilter: flowtable: teardown flow if cached mtu is stale
netfilter: conntrack: rework offload nf_conn timeout extension logic
netfilter: conntrack: remove skb argument from nf_ct_refresh
netfilter: nft_flow_offload: update tcp state flags under lock
netfilter: nft_flow_offload: clear tcp MAXACK flag before moving to slowpath
netfilter: nf_tables: Simplify chain netdev notifier
netfilter: nf_tables: Tolerate chains with no remaining hooks
netfilter: nf_tables: Compare netdev hooks based on stored name
netfilter: nf_tables: Use stored ifname in netdev hook dumps
netfilter: nf_tables: Store user-defined hook ifname
netfilter: nf_tables: Flowtable hook's pf value never varies
netfilter: br_netfilter: remove unused conditional and dead code
netfilter: nf_tables: fix set size with rbtree backend
====================
Link: https://patch.msgid.link/20250119172051.8261-1-pablo@netfilter.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Jakub Kicinski says:
====================
net: ethtool: fixes for HDS threshold
Quick follow up on the HDS threshold work, since the merge window
is upon us.
Fix the bnxt implementation to apply the settings right away,
because we update the parameters _after_ configuring HW user
needed to reconfig the device twice to get the settings to stick.
For this I took the liberty of moving the config to a separate
struct. This follows my original thinking for the queue API.
It should also fit more neatly into how many drivers which
support safe config update operate. Drivers can allocate
new objects using the "pending" struct.
netdevsim:
KTAP version 1
1..7
ok 1 hds.get_hds
ok 2 hds.get_hds_thresh
ok 3 hds.set_hds_disable
ok 4 hds.set_hds_enable
ok 5 hds.set_hds_thresh_zero
ok 6 hds.set_hds_thresh_max
ok 7 hds.set_hds_thresh_gt
# Totals: pass:7 fail:0 xfail:0 xpass:0 skip:0 error:0
bnxt:
KTAP version 1
1..7
ok 1 hds.get_hds
ok 2 hds.get_hds_thresh
ok 3 hds.set_hds_disable # SKIP disabling of HDS not supported by the device
ok 4 hds.set_hds_enable
ok 5 hds.set_hds_thresh_zero
ok 6 hds.set_hds_thresh_max
ok 7 hds.set_hds_thresh_gt
# Totals: pass:6 fail:0 xfail:0 xpass:0 skip:1 error:0
v1: https://lore.kernel.org/20250117194815.1514410-1-kuba@kernel.org
====================
Link: https://patch.msgid.link/20250119020518.1962249-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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300-400B RPC requests are fairly common. With the current default
of 256B HDS threshold bnxt ends up splitting those, lowering PCIe
bandwidth efficiency and increasing the number of memory allocation.
Increase the HDS threshold to fit 4 buffers in a 4k page.
This works out to 640B as the threshold on a typical kernel confing.
This change increases the performance for a microbenchmark which
receives 400B RPCs and sends empty responses by 4.5%.
Admittedly this is just a single benchmark, but 256B works out to
just 6 (so 2 more) packets per head page, because shinfo size
dominates the headers.
Now that we use page pool for the header pages I was also tempted
to default rx_copybreak to 0, but in synthetic testing the copybreak
size doesn't seem to make much difference.
Reviewed-by: Michael Chan <michael.chan@broadcom.com>
Link: https://patch.msgid.link/20250119020518.1962249-8-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Now that we can configure HDS threshold separately from the rx_copybreak
HDS threshold may be higher than rx_copybreak.
We need to make sure that we have enough space for the headers.
Fixes: 6b43673a25c3 ("bnxt_en: add support for hds-thresh ethtool command")
Reviewed-by: Michael Chan <michael.chan@broadcom.com>
Link: https://patch.msgid.link/20250119020518.1962249-7-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The core has the current HDS config, it can pre-populate the values
for the drivers. While at it, remove the zero-setting in netdevsim.
Zero are the default values since the config is zalloc'ed.
Reviewed-by: Michael Chan <michael.chan@broadcom.com>
Link: https://patch.msgid.link/20250119020518.1962249-6-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Use the pending config for hds_thrs. Core will only update the "current"
one after we return success. Without this change 2 reconfigs would be
required for the setting to reach the device.
Fixes: 6b43673a25c3 ("bnxt_en: add support for hds-thresh ethtool command")
Reviewed-by: Michael Chan <michael.chan@broadcom.com>
Link: https://patch.msgid.link/20250119020518.1962249-5-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Record the pending configuration in net_device struct.
ethtool core duplicates the current config and the specific
handlers (for now just ringparam) can modify it.
Reviewed-by: Michael Chan <michael.chan@broadcom.com>
Link: https://patch.msgid.link/20250119020518.1962249-4-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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For ease of review of the next patch store the dev pointer
on the stack, instead of referring to req_info.dev every time.
No functional changes.
Reviewed-by: Michael Chan <michael.chan@broadcom.com>
Link: https://patch.msgid.link/20250119020518.1962249-3-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Separate the HDS config from the ethtool state struct.
The HDS config contains just simple parameters, not state.
Having it as a separate struct will make it easier to clone / copy
and also long term potentially make it per-queue.
Reviewed-by: Michael Chan <michael.chan@broadcom.com>
Link: https://patch.msgid.link/20250119020518.1962249-2-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull afs updates from Christian Brauner:
"Dynamic root improvements:
- Create an /afs/.<cell> mountpoint to match the /afs/<cell>
mountpoint when a cell is created
- Add some more checks on cell names proposed by the user to prevent
dodgy symlink bodies from being created. Also prevent rootcell from
being altered once set to simplify the locking
- Change the handling of /afs/@cell from being a dentry name
substitution at lookup time to making it a symlink to the current
cell name and also provide a /afs/.@cell symlink to point to the
dotted cell mountpoint
Fixes:
- Fix the abort code check in the fallback handling for the
YFS.RemoveFile2 RPC call
- Use call->op->server() for oridnary filesystem RPC calls that have
an operation descriptor instead of call->server()"
* tag 'vfs-6.14-rc1.afs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
afs: Fix the fallback handling for the YFS.RemoveFile2 RPC call
afs: Make /afs/@cell and /afs/.@cell symlinks
afs: Add rootcell checks
afs: Make /afs/.<cell> as well as /afs/<cell> mountpoints
|
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Kuniyuki Iwashima says:
====================
af_unix: Set skb drop reason in every kfree_skb() path.
There is a potential user for skb drop reason for AF_UNIX.
This series replaces some kfree_skb() in connect() and
sendmsg() paths and sets skb drop reason for the rest of
kfree_skb() in AF_UNIX.
Link: https://lore.kernel.org/netdev/CAAf2ycmZHti95WaBR3s+L5Epm1q7sXmvZ-EqCK=-oZj=45tOwQ@mail.gmail.com/
v2: https://lore.kernel.org/20250112040810.14145-1-kuniyu@amazon.com/
v1: https://lore.kernel.org/20250110092641.85905-1-kuniyu@amazon.com/
====================
Link: https://patch.msgid.link/20250116053441.5758-1-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
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This is based on Donald Hunter's patch.
These functions could fail for various reasons, sometimes
triggering kfree_skb().
* unix_stream_connect() : connect()
* unix_stream_sendmsg() : sendmsg()
* queue_oob() : sendmsg(MSG_OOB)
* unix_dgram_sendmsg() : sendmsg()
Such kfree_skb() is tied to the errno of connect() and
sendmsg(), and we need not define skb drop reasons.
Let's use consume_skb() not to churn kfree_skb() events.
Link: https://lore.kernel.org/netdev/eb30b164-7f86-46bf-a5d3-0f8bda5e9398@redhat.com/
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://patch.msgid.link/20250116053441.5758-10-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
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This is a follow-up of commit d460b04bc452 ("af_unix: Clean up
error paths in unix_stream_sendmsg().").
If we initialise skb with NULL in unix_stream_sendmsg(), we can
reuse the existing out_pipe label for the SEND_SHUTDOWN check.
Let's rename it and adjust the existing label as out_pipe_lock.
While at it, size and data_len are moved to the while loop scope.
Suggested-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://patch.msgid.link/20250116053441.5758-9-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
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unix_dgram_disconnected() is called from two places:
1. when a connect()ed socket dis-connect()s or re-connect()s to
another socket
2. when sendmsg() fails because the peer socket that the client
has connect()ed to has been close()d
Then, the client's recv queue is purged to remove all messages from
the old peer socket.
Let's define a new drop reason for that case.
# echo 1 > /sys/kernel/tracing/events/skb/kfree_skb/enable
# python3
>>> from socket import *
>>>
>>> # s1 has a message from s2
>>> s1, s2 = socketpair(AF_UNIX, SOCK_DGRAM)
>>> s2.send(b'hello world')
>>>
>>> # re-connect() drops the message from s2
>>> s3 = socket(AF_UNIX, SOCK_DGRAM)
>>> s3.bind('')
>>> s1.connect(s3.getsockname())
# cat /sys/kernel/tracing/trace_pipe
python3-250 ... kfree_skb: ... location=skb_queue_purge_reason+0xdc/0x110 reason: UNIX_DISCONNECT
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://patch.msgid.link/20250116053441.5758-8-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
unix_stream_read_skb() is called when BPF SOCKMAP reads some data
from a socket in the map.
SOCKMAP does not support MSG_OOB, and reading OOB results in a drop.
Let's set drop reasons respectively.
* SOCKET_CLOSE : the socket in SOCKMAP was close()d
* UNIX_SKIP_OOB : OOB was read from the socket in SOCKMAP
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://patch.msgid.link/20250116053441.5758-7-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
AF_UNIX SOCK_STREAM socket supports MSG_OOB.
When OOB data is sent to a socket, recv() will break at that point.
If the next recv() does not have MSG_OOB, the normal data following
the OOB data is returned.
Then, the OOB skb is dropped.
Let's define a new drop reason for that case in manage_oob().
# echo 1 > /sys/kernel/tracing/events/skb/kfree_skb/enable
# python3
>>> from socket import *
>>> s1, s2 = socketpair(AF_UNIX)
>>> s1.send(b'a', MSG_OOB)
>>> s1.send(b'b')
>>> s2.recv(2)
b'b'
# cat /sys/kernel/tracing/trace_pipe
...
python3-223 ... kfree_skb: ... location=unix_stream_read_generic+0x59e/0xc20 reason: UNIX_SKIP_OOB
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://patch.msgid.link/20250116053441.5758-6-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
Inflight file descriptors by SCM_RIGHTS hold references to the
struct file.
AF_UNIX sockets could hold references to each other, forming
reference cycles.
Once such sockets are close()d without the fd recv()ed, they
will be unaccessible from userspace but remain in kernel.
__unix_gc() garbage-collects skb with the dead file descriptors
and frees them by __skb_queue_purge().
Let's set SKB_DROP_REASON_SOCKET_CLOSE there.
# echo 1 > /sys/kernel/tracing/events/skb/kfree_skb/enable
# python3
>>> from socket import *
>>> from array import array
>>>
>>> # Create a reference cycle
>>> s1 = socket(AF_UNIX, SOCK_DGRAM)
>>> s1.bind('')
>>> s1.sendmsg([b"nop"], [(SOL_SOCKET, SCM_RIGHTS, array("i", [s1.fileno()]))], 0, s1.getsockname())
>>> s1.close()
>>>
>>> # Trigger GC
>>> s2 = socket(AF_UNIX)
>>> s2.close()
# cat /sys/kernel/tracing/trace_pipe
...
kworker/u16:2-42 ... kfree_skb: ... location=__unix_gc+0x4ad/0x580 reason: SOCKET_CLOSE
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://patch.msgid.link/20250116053441.5758-5-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
unix_sock_destructor() is called as sk->sk_destruct() just before
the socket is actually freed.
Let's use SKB_DROP_REASON_SOCKET_CLOSE for skb_queue_purge().
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://patch.msgid.link/20250116053441.5758-4-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
unix_release_sock() is called when the last refcnt of struct file
is released.
Let's define a new drop reason SKB_DROP_REASON_SOCKET_CLOSE and
set it for kfree_skb() in unix_release_sock().
# echo 1 > /sys/kernel/tracing/events/skb/kfree_skb/enable
# python3
>>> from socket import *
>>> s1, s2 = socketpair(AF_UNIX)
>>> s1.send(b'hello world')
>>> s2.close()
# cat /sys/kernel/tracing/trace_pipe
...
python3-280 ... kfree_skb: ... protocol=0 location=unix_release_sock+0x260/0x420 reason: SOCKET_CLOSE
To be precise, unix_release_sock() is also called for a new child
socket in unix_stream_connect() when something fails, but the new
sk does not have skb in the recv queue then and no event is logged.
Note that only tcp_inbound_ao_hash() uses a similar drop reason,
SKB_DROP_REASON_TCP_CLOSE, and this can be generalised later.
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://patch.msgid.link/20250116053441.5758-3-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
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The following patch adds a new drop reason starting with
the SOCKET_ prefix.
Let's gather the existing SOCKET_ reasons.
Note that the order is not part of uAPI.
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://patch.msgid.link/20250116053441.5758-2-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
