Replace VFS_WARN_ON_ONCE() with graceful error handling when file
handles contain inode numbers that don't match the actual namespace
inode. This prevents userspace from triggering kernel warnings by
providing malformed file handles to open_by_handle_at().
The issue occurs when userspace provides a file handle with valid
namespace type and ID that successfully locates a namespace, but
specifies an incorrect inode number. Previously, this would trigger
VFS_WARN_ON_ONCE() when comparing the real inode number against the
provided value.
Since file handle data is user-controllable, inode number mismatches
should be treated as invalid input rather than kernel consistency
errors. Handle this case by returning NULL to indicate the file
handle is invalid, rather than warning about what is essentially
user input validation.
Reported-by: syzbot+9eefe09bedd093f156c2@syzkaller.appspotmail.com
Suggested-by: Jan Kara <jack@suse.cz>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Deepanshu Kartikey <kartikey406@gmail.com>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Use three additional labels so that another bit of common code can be
better reused at the end of this function implementation.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Steve French <stfrench@microsoft.com>
* cifs_lookup():
Move the definition for the local variable “cfid” into an else branch
so that the corresponding setting will only be performed if a NULL inode
was detected during lookup by this function.
* cifs_d_revalidate():
Move the definition for the local variables “inode” and “rc” into
an if branch so that the corresponding setting will only be performed
after a d_really_is_positive() call.
Move the definition for the local variable “cfid” into an else branch
so that the corresponding setting will only be performed if further data
processing will be needed for an open_cached_dir_by_dentry() call.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Acked-by: Henrique Carvalho <henrique.carvalho@suse.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
-----BEGIN PGP SIGNATURE-----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=SVmB
-----END PGP SIGNATURE-----
Merge tag 'for-6.18-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs fixes from David Sterba:
"Two short fixes that would be good to have before rc1"
* tag 'for-6.18-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: fix PAGE_SIZE format specifier in open_ctree()
btrfs: avoid potential out-of-bounds in btrfs_encode_fh()
Mike Snitzer has prototyped a mechanism for disabling I/O caching in
NFSD. This is introduced in v6.18 as an experimental feature. This
enables scaling NFSD in /both/ directions:
- NFS service can be supported on systems with small memory
footprints, such as low-cost cloud instances
- Large NFS workloads will be less likely to force the eviction of
server-local activity, helping it avoid thrashing
Jeff Layton contributed a number of fixes to the new attribute
delegation implementation (based on a pending Internet RFC) that we
hope will make attribute delegation reliable enough to enable by
default, as it is on the Linux NFS client.
The remaining patches in this pull request are clean-ups and minor
optimizations. Many thanks to the contributors, reviewers, testers,
and bug reporters who participated during the v6.18 NFSD development
cycle.
-----BEGIN PGP SIGNATURE-----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=/nLS
-----END PGP SIGNATURE-----
Merge tag 'nfsd-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux
Pull nfsd updates from Chuck Lever:
"Mike Snitzer has prototyped a mechanism for disabling I/O caching in
NFSD. This is introduced in v6.18 as an experimental feature. This
enables scaling NFSD in /both/ directions:
- NFS service can be supported on systems with small memory
footprints, such as low-cost cloud instances
- Large NFS workloads will be less likely to force the eviction of
server-local activity, helping it avoid thrashing
Jeff Layton contributed a number of fixes to the new attribute
delegation implementation (based on a pending Internet RFC) that we
hope will make attribute delegation reliable enough to enable by
default, as it is on the Linux NFS client.
The remaining patches in this pull request are clean-ups and minor
optimizations. Many thanks to the contributors, reviewers, testers,
and bug reporters who participated during the v6.18 NFSD development
cycle"
* tag 'nfsd-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux: (42 commits)
nfsd: discard nfserr_dropit
SUNRPC: Make RPCSEC_GSS_KRB5 select CRYPTO instead of depending on it
NFSD: Add io_cache_{read,write} controls to debugfs
NFSD: Do the grace period check in ->proc_layoutget
nfsd: delete unnecessary NULL check in __fh_verify()
NFSD: Allow layoutcommit during grace period
NFSD: Disallow layoutget during grace period
sunrpc: fix "occurence"->"occurrence"
nfsd: Don't force CRYPTO_LIB_SHA256 to be built-in
nfsd: nfserr_jukebox in nlm_fopen should lead to a retry
NFSD: Reduce DRC bucket size
NFSD: Delay adding new entries to LRU
SUNRPC: Move the svc_rpcb_cleanup() call sites
NFS: Remove rpcbind cleanup for NFSv4.0 callback
nfsd: unregister with rpcbind when deleting a transport
NFSD: Drop redundant conversion to bool
sunrpc: eliminate return pointer in svc_tcp_sendmsg()
sunrpc: fix pr_notice in svc_tcp_sendto() to show correct length
nfsd: decouple the xprtsec policy check from check_nfsd_access()
NFSD: Fix destination buffer size in nfsd4_ssc_setup_dul()
...
- Some comment spelling fixes (Xichao)
-----BEGIN PGP SIGNATURE-----
iHUEABYKAB0WIQSRPv8tYSvhwAzJdzjdoc3SxdoYdgUCaOMrdwAKCRDdoc3SxdoY
dkGVAP9z3BjpZIcK8DHWHnkQcy4dOuCt2MMSqn7skN6av+Ro/AEA/tOhqAKv1j5k
Lgs1mLsyM2V7fsO2QhQ721DwO0caNAU=
=yhUq
-----END PGP SIGNATURE-----
Merge tag 'zonefs-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/zonefs
Pull zonefs update from Damien Le Moal:
- Some comment spelling fixes (Xichao)
* tag 'zonefs-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/zonefs:
zonefs: correct some spelling mistakes
- Bring the kernel memory-model docs into the Sphinx build in the "literal
include" mode.
- Lots of build-infrastructure work, further cleaning up long-term
kernel-doc technical debt. The sphinx-pre-install tool has been
converted to Python and updated for current systems.
- A new tool to detect when documents have been moved and generate HTML
redirects; this can be used on kernel.org (or any other site hosting the
rendered docs) to avoid breaking links.
- Automated processing of the YAML files describing the netlink protocol.
- A significant update of the maintainer's PGP guide.
...and a seemingly endless series of typo fixes, build-problem fixes, etc.
-----BEGIN PGP SIGNATURE-----
iQEzBAABCgAdFiEEIw+MvkEiF49krdp9F0NaE2wMflgFAmjbwOoACgkQF0NaE2wM
flis1gf/ZvRi3Mo5hIsuGyQfs5kw/jx0N7SG4QYf2rEnt5ZGNa5SkyOVKsWQKTgK
LesQkdaCA0xHMoUWSvZRwn2a0+acpeMm6viXjewd2mU52sSNmSkKG4WsZyxfnOYS
36fkZ1qymQkJ4uSvx5NScTiIBqZx+Qfgkj0eNnXcpJd2vYeAVSu4szsFxeUvcJFj
Ckq3+3DQ5p/dcWwgvdlLKEJGj98Q3cqLrMn8ycbNtwzo3mdVbrlP5+qqNslZC6xY
Nqpv9HXbFWNCaL6YWCybcNOZ4F5UVno1ap2F3imTD8Rp1iG77zAQV5lMlq4Gksf4
kECLc1TtTKSgmgWHmi1sgudqM4Xqpw==
=Qe3Z
-----END PGP SIGNATURE-----
Merge tag 'docs-6.18' of git://git.lwn.net/linux
Pull documentation updates from Jonathan Corbet:
"It has been a relatively busy cycle in docsland, with changes all
over:
- Bring the kernel memory-model docs into the Sphinx build in the
"literal include" mode.
- Lots of build-infrastructure work, further cleaning up long-term
kernel-doc technical debt. The sphinx-pre-install tool has been
converted to Python and updated for current systems.
- A new tool to detect when documents have been moved and generate
HTML redirects; this can be used on kernel.org (or any other site
hosting the rendered docs) to avoid breaking links.
- Automated processing of the YAML files describing the netlink
protocol.
- A significant update of the maintainer's PGP guide.
... and a seemingly endless series of typo fixes, build-problem fixes,
etc"
* tag 'docs-6.18' of git://git.lwn.net/linux: (193 commits)
Documentation/features: Update feature lists for 6.17-rc7
docs: remove cdomain.py
Documentation/process: submitting-patches: fix typo in "were do"
docs: dev-tools/lkmm: Fix typo of missing file extension
Documentation: trace: histogram: Convert ftrace docs cross-reference
Documentation: trace: histogram-design: Wrap introductory note in note:: directive
Documentation: trace: historgram-design: Separate sched_waking histogram section heading and the following diagram
Documentation: trace: histogram-design: Trim trailing vertices in diagram explanation text
Documentation: trace: histogram: Fix histogram trigger subsection number order
docs: driver-api: fix spelling of "buses".
Documentation: fbcon: Use admonition directives
Documentation: fbcon: Reindent 8th step of attach/detach/unload
Documentation: fbcon: Add boot options and attach/detach/unload section headings
docs: filesystems: sysfs: add remaining top level sysfs directory descriptions
docs: filesystems: sysfs: clarify symlink destinations in dev and bus/devices descriptions
docs: filesystems: sysfs: remove top level sysfs net directory
docs: maintainer: Fix ambiguous subheading formatting
docs: kdoc: a few more dump_typedef() tweaks
docs: kdoc: remove redundant comment stripping in dump_typedef()
docs: kdoc: remove some dead code in dump_typedef()
...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
-----BEGIN PGP SIGNATURE-----
iHUEABYKAB0WIQQqUNBr3gm4hGXdBJlZ7Krx/gZQ6wUCaN3daAAKCRBZ7Krx/gZQ
6zNWAP9kD6rOJRNqDgea4pibDPa47Tps/WM5tsDv3dsLliY29gEA6sveOWZ3guAj
4oY3ts/NtHLWXvhI7Vd/1mr2aTKEZQk=
=YNK+
-----END PGP SIGNATURE-----
Merge tag 'pull-f_path' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull file->f_path constification from Al Viro:
"Only one thing was modifying ->f_path of an opened file - acct(2).
Massaging that away and constifying a bunch of struct path * arguments
in functions that might be given &file->f_path ends up with the
situation where we can turn ->f_path into an anon union of const
struct path f_path and struct path __f_path, the latter modified only
in a few places in fs/{file_table,open,namei}.c, all for struct file
instances that are yet to be opened"
* tag 'pull-f_path' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (23 commits)
Have cc(1) catch attempts to modify ->f_path
kernel/acct.c: saner struct file treatment
configfs:get_target() - release path as soon as we grab configfs_item reference
apparmor/af_unix: constify struct path * arguments
ovl_is_real_file: constify realpath argument
ovl_sync_file(): constify path argument
ovl_lower_dir(): constify path argument
ovl_get_verity_digest(): constify path argument
ovl_validate_verity(): constify {meta,data}path arguments
ovl_ensure_verity_loaded(): constify datapath argument
ksmbd_vfs_set_init_posix_acl(): constify path argument
ksmbd_vfs_inherit_posix_acl(): constify path argument
ksmbd_vfs_kern_path_unlock(): constify path argument
ksmbd_vfs_path_lookup_locked(): root_share_path can be const struct path *
check_export(): constify path argument
export_operations->open(): constify path argument
rqst_exp_get_by_name(): constify path argument
nfs: constify path argument of __vfs_getattr()
bpf...d_path(): constify path argument
done_path_create(): constify path argument
...
New Features:
* Add a Kconfig option to redirect dfprintk() to the trace buffer
* Enable use of the RWF_DONTCACHE flag on the NFS client
* Add striped layout handling to pNFS flexfiles
* Add proper localio handling for READ and WRITE O_DIRECT
Bugfixes:
* Handle NFS4ERR_GRACE errors during delegation recall
* Fix NFSv4.1 backchannel max_resp_sz verification check
* Fix mount hang after CREATE_SESSION failure
* Fix d_parent->d_inode locking in nfs4_setup_readdir()
Other Cleanups and Improvements:
* Improvements to write handling tracepoints
* Fix a few trivial spelling mistakes
* Cleanups to the rpcbind cleanup call sites
* Convert the SUNRPC xdr_buf to use a scratch folio instead of scratch page
* Remove unused NFS_WBACK_BUSY() macro
* Remove __GFP_NOWARN flags
* Unexport rpc_malloc() and rpc_free()
-----BEGIN PGP SIGNATURE-----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=8wnU
-----END PGP SIGNATURE-----
Merge tag 'nfs-for-6.18-1' of git://git.linux-nfs.org/projects/anna/linux-nfs
Pull NFS client updates from Anna Schumaker:
"New Features:
- Add a Kconfig option to redirect dfprintk() to the trace buffer
- Enable use of the RWF_DONTCACHE flag on the NFS client
- Add striped layout handling to pNFS flexfiles
- Add proper localio handling for READ and WRITE O_DIRECT
Bugfixes:
- Handle NFS4ERR_GRACE errors during delegation recall
- Fix NFSv4.1 backchannel max_resp_sz verification check
- Fix mount hang after CREATE_SESSION failure
- Fix d_parent->d_inode locking in nfs4_setup_readdir()
Other Cleanups and Improvements:
- Improvements to write handling tracepoints
- Fix a few trivial spelling mistakes
- Cleanups to the rpcbind cleanup call sites
- Convert the SUNRPC xdr_buf to use a scratch folio instead of
scratch page
- Remove unused NFS_WBACK_BUSY() macro
- Remove __GFP_NOWARN flags
- Unexport rpc_malloc() and rpc_free()"
* tag 'nfs-for-6.18-1' of git://git.linux-nfs.org/projects/anna/linux-nfs: (46 commits)
NFS: add basic STATX_DIOALIGN and STATX_DIO_READ_ALIGN support
nfs/localio: add tracepoints for misaligned DIO READ and WRITE support
nfs/localio: add proper O_DIRECT support for READ and WRITE
nfs/localio: refactor iocb initialization
nfs/localio: refactor iocb and iov_iter_bvec initialization
nfs/localio: avoid issuing misaligned IO using O_DIRECT
nfs/localio: make trace_nfs_local_open_fh more useful
NFSD: filecache: add STATX_DIOALIGN and STATX_DIO_READ_ALIGN support
sunrpc: unexport rpc_malloc() and rpc_free()
NFSv4/flexfiles: Add support for striped layouts
NFSv4/flexfiles: Update layout stats & error paths for striped layouts
NFSv4/flexfiles: Write path updates for striped layouts
NFSv4/flexfiles: Commit path updates for striped layouts
NFSv4/flexfiles: Read path updates for striped layouts
NFSv4/flexfiles: Update low level helper functions to be DS stripe aware.
NFSv4/flexfiles: Add data structure support for striped layouts
NFSv4/flexfiles: Use ds_commit_idx when marking a write commit
NFSv4/flexfiles: Remove cred local variable dependency
nfs4_setup_readdir(): insufficient locking for ->d_parent->d_inode dereferencing
NFS: Enable use of the RWF_DONTCACHE flag on the NFS client
...
-----BEGIN PGP SIGNATURE-----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=4Nt1
-----END PGP SIGNATURE-----
Merge tag '6.18-rc-part1-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6
Pull smb client updates from Steve French:
- Fix oops in crypt message
- Remove duplicate arc4 code
- Fix potential io_uring reconnect
- Two important directory leases fixes and three perf improvements
- Three minor cleanups
- Four debug improvements (e.g. for showing more information on leases,
and one for adding more helpful information on reconnect)
* tag '6.18-rc-part1-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
cifs: client: force multichannel=off when max_channels=1
smb client: fix bug with newly created file in cached dir
smb: client: short-circuit negative lookups when parent dir is fully cached
smb: client: short-circuit in open_cached_dir_by_dentry() if !dentry
smb: client: remove pointless cfid->has_lease check
smb: client: transport: minor indentation style fix
smb: client: transport: avoid reconnects triggered by pending task work
smb: client: remove unused fid_lock
smb: client: update cfid->last_access_time in open_cached_dir_by_dentry()
smb: client: ensure open_cached_dir_by_dentry() only returns valid cfid
smb: client: account smb directory cache usage and per-tcon totals
smb: client: add drop_dir_cache module parameter to invalidate cached dirents
smb: client: show lease state as R/H/W (or NONE) in open_files
smb: client: fix crypto buffers in non-linear memory
smb: Use arc4 library instead of duplicate arc4 code
smb: client: add tcon information to smb2_reconnect() debug messages
-----BEGIN PGP SIGNATURE-----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=rwfk
-----END PGP SIGNATURE-----
Merge tag 'v6.18rc1-part1-ksmbd-server-fixes' of git://git.samba.org/ksmbd
Pull smb server fixes from Steve French:
- Fix potential UAFs and corruptions in rpc open and close
- Fix copy_file_range when ranges overlap
- Improve session, share, connection lookup performance
- Fix potential hash collisions in share and session lists
- Debugging improvement - making per-connection threads easier to
identify
- Improve socket creation
- Fix return code mapping for posix query fs info
- Add support for limiting the maximum number of connections per IP
address, extending the existing connection limiting mechanism to
enforce per-IP connection limits alongside the global connection
limit
* tag 'v6.18rc1-part1-ksmbd-server-fixes' of git://git.samba.org/ksmbd:
ksmbd: increase session and share hash table bits
ksmbd: replace connection list with hash table
ksmbd: add an error print when maximum IP connections limit is reached
ksmbd: add max ip connections parameter
ksmbd: fix error code overwriting in smb2_get_info_filesystem()
ksmbd: copy overlapped range within the same file
ksmbd: use sock_create_kern interface to create kernel socket
ksmbd: make ksmbd thread names distinct by client IP
ksmbd: Fix race condition in RPC handle list access
This release focuses on two primary updates for Android devices. First, it sets
hash-based file name lookup as the default method to improve performance, while
retaining an option to fall back to a linear lookup. Second, it resolves a
persistent issue with the checkpoint=enable feature. The update further boosts
performance by prefetching node blocks, merging FUA writes more efficiently, and
optimizing block allocation policies.
The release is rounded out by a comprehensive set of bug fixes that address
memory safety, data integrity, and potential system hangs, along with minor
documentation and code clean-ups.
Enhancement:
- add mount option and sysfs entry to tune the lookup mode
- dump more information and add a timeout when enabling/disabling checkpoints
- readahead node blocks in F2FS_GET_BLOCK_PRECACHE mode
- merge FUA command with the existing writes
- allocate HOT_DATA for IPU writes
- Use allocate_section_policy to control write priority in multi-devices setups
- add reserved nodes for privileged users
- Add bggc_io_aware to adjust the priority of BG_GC when issuing IO
- show the list of donation files
Bug fix:
- add missing dput() when printing the donation list
- fix UAF issue in f2fs_merge_page_bio()
- add sanity check on ei.len in __update_extent_tree_range()
- fix infinite loop in __insert_extent_tree()
- fix zero-sized extent for precache extents
- fix to mitigate overhead of f2fs_zero_post_eof_page()
- fix to avoid migrating empty section
- fix to truncate first page in error path of f2fs_truncate()
- fix to update map->m_next_extent correctly in f2fs_map_blocks()
- fix wrong layout information on 16KB page
- fix to do sanity check on node footer for non inode dnode
- fix to avoid NULL pointer dereference in f2fs_check_quota_consistency()
- fix to detect potential corrupted nid in free_nid_list
- fix to clear unusable_cap for checkpoint=enable
- fix to zero data after EOF for compressed file correctly
- fix to avoid overflow while left shift operation
- fix condition in __allow_reserved_blocks()
-----BEGIN PGP SIGNATURE-----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=cIQy
-----END PGP SIGNATURE-----
Merge tag 'f2fs-for-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs
Pull f2fs updates from Jaegeuk Kim:
"This focuses on two primary updates for Android devices.
First, it sets hash-based file name lookup as the default method to
improve performance, while retaining an option to fall back to a
linear lookup.
Second, it resolves a persistent issue with the 'checkpoint=enable'
feature.
The update further boosts performance by prefetching node blocks,
merging FUA writes more efficiently, and optimizing block allocation
policies.
The release is rounded out by a comprehensive set of bug fixes that
address memory safety, data integrity, and potential system hangs,
along with minor documentation and code clean-ups.
Enhancements:
- add mount option and sysfs entry to tune the lookup mode
- dump more information and add a timeout when enabling/disabling
checkpoints
- readahead node blocks in F2FS_GET_BLOCK_PRECACHE mode
- merge FUA command with the existing writes
- allocate HOT_DATA for IPU writes
- Use allocate_section_policy to control write priority in
multi-devices setups
- add reserved nodes for privileged users
- Add bggc_io_aware to adjust the priority of BG_GC when issuing IO
- show the list of donation files
Bug fixes:
- add missing dput() when printing the donation list
- fix UAF issue in f2fs_merge_page_bio()
- add sanity check on ei.len in __update_extent_tree_range()
- fix infinite loop in __insert_extent_tree()
- fix zero-sized extent for precache extents
- fix to mitigate overhead of f2fs_zero_post_eof_page()
- fix to avoid migrating empty section
- fix to truncate first page in error path of f2fs_truncate()
- fix to update map->m_next_extent correctly in f2fs_map_blocks()
- fix wrong layout information on 16KB page
- fix to do sanity check on node footer for non inode dnode
- fix to avoid NULL pointer dereference in
f2fs_check_quota_consistency()
- fix to detect potential corrupted nid in free_nid_list
- fix to clear unusable_cap for checkpoint=enable
- fix to zero data after EOF for compressed file correctly
- fix to avoid overflow while left shift operation
- fix condition in __allow_reserved_blocks()"
* tag 'f2fs-for-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (43 commits)
f2fs: add missing dput() when printing the donation list
f2fs: fix UAF issue in f2fs_merge_page_bio()
f2fs: readahead node blocks in F2FS_GET_BLOCK_PRECACHE mode
f2fs: add sanity check on ei.len in __update_extent_tree_range()
f2fs: fix infinite loop in __insert_extent_tree()
f2fs: fix zero-sized extent for precache extents
f2fs: fix to mitigate overhead of f2fs_zero_post_eof_page()
f2fs: fix to avoid migrating empty section
f2fs: fix to truncate first page in error path of f2fs_truncate()
f2fs: fix to update map->m_next_extent correctly in f2fs_map_blocks()
f2fs: fix wrong layout information on 16KB page
f2fs: clean up error handing of f2fs_submit_page_read()
f2fs: avoid unnecessary folio_clear_uptodate() for cleanup
f2fs: merge FUA command with the existing writes
f2fs: allocate HOT_DATA for IPU writes
f2fs: Use allocate_section_policy to control write priority in multi-devices setups
Documentation: f2fs: Reword title
Documentation: f2fs: Indent compression_mode option list
Documentation: f2fs: Wrap snippets in literal code blocks
Documentation: f2fs: Span write hint table section rows
...
- Add support for FS_IOC_{GET,SET}FSLABEL ioctl.
- Two small clean-up patches.
- Optimizes allocation bitmap loading time on large partitions
with small cluster sizes.
- Allow changes for discard, zero_size_dir, and errors options
via remount.
- Validate that the clusters used for the allocation bitmap are
correctly marked as in-use during mount, preventing potential
data corruption from reallocating the bitmap's own space.
- Uses ratelimit to avoid too many error prints on I/O error path.
-----BEGIN PGP SIGNATURE-----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=edGT
-----END PGP SIGNATURE-----
Merge tag 'exfat-for-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/exfat
Pull exfat updates from Namjae Jeon:
- Add support for FS_IOC_{GET,SET}FSLABEL ioctl
- Two small clean-up patches
- Optimizes allocation bitmap loading time on large partitions with
small cluster sizes
- Allow changes for discard, zero_size_dir, and errors options via
remount
- Validate that the clusters used for the allocation bitmap are
correctly marked as in-use during mount, preventing potential data
corruption from reallocating the bitmap's own space
- Uses ratelimit to avoid too many error prints on I/O error path
* tag 'exfat-for-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/exfat:
exfat: Add support for FS_IOC_{GET,SET}FSLABEL
exfat: combine iocharset and utf8 option setup
exfat: support modifying mount options via remount
exfat: optimize allocation bitmap loading time
exfat: Remove unnecessary parentheses
exfat: drop redundant conversion to bool
exfat: validate cluster allocation bits of the allocation bitmap
exfat: limit log print for IO error
Remove unused type in macro fill_default_sys_attrs
Zhen Ni <zhen.ni@easystack.cn>
Replace kzalloc + copy_from_user with memdup_user_nul
Thorsten Blum <thorsten.blum@linux.dev>
fix xattr related buffer overflow...
A message was forwarded to me from Disclosure <disclosure@aisle.com>
indicating a problem with a loop condition in our xattr code. When I
fixed the problem it exposed a related memory leak problem, and I
fixed that too.
-----BEGIN PGP SIGNATURE-----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=FIza
-----END PGP SIGNATURE-----
Merge tag 'for-linus-6.18-ofs1' of git://git.kernel.org/pub/scm/linux/kernel/git/hubcap/linux
Pull orangefs updates from Mike Marshall:
"Two cleanups and a bug fix:
- Remove unused type in macro fill_default_sys_attrs (Zhen Ni)
- Replace kzalloc + copy_from_user with memdup_user_nul (Thorsten Blum)
- Fix xattr related buffer overflow...
A message was forwarded to me from Disclosure <disclosure@aisle.com>
indicating a problem with a loop condition in our xattr code. When
I fixed the problem it exposed a related memory leak problem, and I
fixed that too"
* tag 'for-linus-6.18-ofs1' of git://git.kernel.org/pub/scm/linux/kernel/git/hubcap/linux:
fs/orangefs: Replace kzalloc + copy_from_user with memdup_user_nul
orangefs: fix xattr related buffer overflow...
orangefs: Remove unused type in macro fill_default_sys_attrs
Added:
support for FS_IOC_{GET,SET}FSLABEL ioctl
reject index allocation if $BITMAP is empty but blocks exist
Fixed:
integer overflow in run_unpack()
resource leak bug in wnd_extend()
Changed:
pretend $Extend records as regular files
stop using write_cache_pages
-----BEGIN PGP SIGNATURE-----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=aAFS
-----END PGP SIGNATURE-----
Merge tag 'ntfs3_for_6.18' of https://github.com/Paragon-Software-Group/linux-ntfs3
Pull ntfs3 updates from Konstantin Komarov:
"Added:
- support for FS_IOC_{GET,SET}FSLABEL ioctl
- reject index allocation if $BITMAP is empty but blocks exist
Fixed:
- integer overflow in run_unpack()
- resource leak bug in wnd_extend()
Changed:
- pretend $Extend records as regular files
- stop using write_cache_pages"
* tag 'ntfs3_for_6.18' of https://github.com/Paragon-Software-Group/linux-ntfs3:
ntfs3: stop using write_cache_pages
fs/ntfs3: reject index allocation if $BITMAP is empty but blocks exist
fs/ntfs3: Fix a resource leak bug in wnd_extend()
fs: ntfs3: Fix integer overflow in run_unpack()
ntfs3: pretend $Extend records as regular files
ntfs3: add FS_IOC_SETFSLABEL ioctl
ntfs3: add FS_IOC_GETFSLABEL ioctl
ntfs3: transition magic number to shared constant
-----BEGIN PGP SIGNATURE-----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=QpFA
-----END PGP SIGNATURE-----
Merge tag 'jfs-6.18' of github.com:kleikamp/linux-shaggy
Pull jfs updates from Dave Kleikamp:
"A few fixes and cleanups for JFS"
* tag 'jfs-6.18' of github.com:kleikamp/linux-shaggy:
jfs: replace hardcoded magic number with DTPAGEMAXSLOT constant
JFS: Remove redundant 0 value initialization
JFS: Remove unnecessary parentheses
jfs: fix uninitialized waitqueue in transaction manager
jfs: Verify inode mode when loading from disk
* Add support so tune2fs can modify/update the superblock using an
ioctl, without needing write access to the block device.
* Add support for 32-bit reserved uid's and gid's.
Bug fixes:
* Fix potential warnings and other failures caused by corrupted / fuzzed
file systems.
* Fail unaligned direct I/O write with EINVAL instead of silently
falling back to buffered I/O
* Correectly handle fsmap queries for metadata mappings
* Avoid journal stalls caused by writeback throttling
* Add some missing GFP_NOFAIL flags to avoid potential deadlocks
under extremem memory pressure
Cleanups:
* Remove obsolete EXT3 Kconfigs
-----BEGIN PGP SIGNATURE-----
iQEyBAABCAAdFiEEK2m5VNv+CHkogTfJ8vlZVpUNgaMFAmjclvEACgkQ8vlZVpUN
gaPjJgf4vnWF6DdV/eQfD9d41h+cOuBv0w/pLBMP5nsJn1NtI057hnIEs4DyWqIn
M5O6qT4ktgoeS2zsKDnhdXWLjpnWJfqWKnYR76CoaZjNzg/2A3aT5+/H5fFRpBcT
gkoh1xJbcdo5rglktAyAqYGIUAgRIimNPaLyeffMqHAOdhaiBpzIVU0D4Z24kGUg
nBEMhQ6Km8Bvp1mJUiT9EsFXdC9BakUVrXLiliJsCBWitEYpBk/nScs7U/QQ4KVU
IvK7jiacYapLHwRm/7d9rlr2VQw1rWa584B4seq7H+FWNNAuQcV5Bml05bbUeKGc
9KKZDPA55UqcMBDkcHwro2GkYIFc
=8Z1N
-----END PGP SIGNATURE-----
Merge tag 'ext4_for_linus-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 updates from Ted Ts'o:
"New ext4 features:
- Add support so tune2fs can modify/update the superblock using an
ioctl, without needing write access to the block device
- Add support for 32-bit reserved uid's and gid's
Bug fixes:
- Fix potential warnings and other failures caused by corrupted /
fuzzed file systems
- Fail unaligned direct I/O write with EINVAL instead of silently
falling back to buffered I/O
- Correectly handle fsmap queries for metadata mappings
- Avoid journal stalls caused by writeback throttling
- Add some missing GFP_NOFAIL flags to avoid potential deadlocks
under extremem memory pressure
Cleanups:
- Remove obsolete EXT3 Kconfigs"
* tag 'ext4_for_linus-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
ext4: fix checks for orphan inodes
ext4: validate ea_ino and size in check_xattrs
ext4: guard against EA inode refcount underflow in xattr update
ext4: implemet new ioctls to set and get superblock parameters
ext4: add support for 32-bit default reserved uid and gid values
ext4: avoid potential buffer over-read in parse_apply_sb_mount_options()
ext4: fix an off-by-one issue during moving extents
ext4: increase i_disksize to offset + len in ext4_update_disksize_before_punch()
ext4: verify orphan file size is not too big
ext4: fail unaligned direct IO write with EINVAL
ext4: correctly handle queries for metadata mappings
ext4: increase IO priority of fastcommit
ext4: remove obsolete EXT3 config options
jbd2: increase IO priority of checkpoint
ext4: fix potential null deref in ext4_mb_init()
ext4: add ext4_sb_bread_nofail() helper function for ext4_free_branches()
ext4: replace min/max nesting with clamp()
fs: ext4: change GFP_KERNEL to GFP_NOFS to avoid deadlock
-----BEGIN PGP SIGNATURE-----
iQEzBAABCAAdFiEEq1nRK9aeMoq1VSgcnJ2qBz9kQNkFAmjdD7MACgkQnJ2qBz9k
QNl/rwf/ZpxWYEbZoMMrtoE+PTvlp7ato01oqPYeiX3ZJeHErkQVYtTL4RiV/12Q
NrlZkc8PO9LWk+SqbKoylwo9XtpqT5UDPsmtudPZoJ0olxybJjHS4oTWsj5jBlZH
IAqgo99rOa+O1o6G2HozUxVu+0L4Z50EkfL27zGNaunkaWh4YnjFkBMgyiVB5Vvh
RSEMCN4YvkISyaVD/xa5fEDQ5KCCdVmUV6lLnZvfwXISNqEkgHz1kD3KwAfb3b7b
iPm0NeQ20KOWcDkK3VyjYsFbvF29nQCTfiHv68zBfoEu7hrG0pC3x7/Bqem4uIo6
TO5VgrqpohGk7O28Zu7LyxqmvPuwHw==
=SWRE
-----END PGP SIGNATURE-----
Merge tag 'fs_for_v6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Pull udf and quota updates from Jan Kara:
"A fix for UDF and quota"
* tag 'fs_for_v6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
fs: udf: fix OOB read in lengthAllocDescs handling
fs: quota: create dedicated workqueue for quota_release_work
-----BEGIN PGP SIGNATURE-----
iQEzBAABCAAdFiEEq1nRK9aeMoq1VSgcnJ2qBz9kQNkFAmjdDqAACgkQnJ2qBz9k
QNmivQf+JFxnxjW1qYfIsQjuQlFDqOH0RYsnhBFTS1oqGKqbbDYEaNsGft3zbhLW
0VbWjUDvO9nRvIFi7SWzNtONuGhwnNEjZBD+q3zrtssNKbk/px/s1Hjexp1P5xl5
pUrqrlDaC3n25pqJygTMIb4DjPAY8kAIrKA2EEtqTTpbDdeHe+gvOtOjhTIkqVza
DA85iq9Ytm3PpqDKPLLwUNkCEsfabpxESuXGz4hvoZu72YffKkNZDRfEnkCu3CW9
RniQZvDugw6SKBuqoqGumk6vaxqHgqBZV3Y4Tdi7+hjeZo9NI9KmDmaNL5sDm3pe
StTEIa/YIZQiJGIQfTPOTlOT7jAybw==
=/Dff
-----END PGP SIGNATURE-----
Merge tag 'fsnotify_for_v6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Pull fsnotify updates from Jan Kara:
- a couple of small cleanups and fixes
- implement fanotify watchdog that reports processes that fail to
respond to fanotify permission events in a given time
* tag 'fsnotify_for_v6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
fanotify: add watchdog for permission events
fanotify: Validate the return value of mnt_ns_from_dentry() before dereferencing
fsnotify: fix "rewriten"->"rewritten"
-----BEGIN PGP SIGNATURE-----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=K0Ye
-----END PGP SIGNATURE-----
Merge tag 'configfs-for-v6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/a.hindborg/linux
Pull configfs update from Andreas Hindborg:
"Just a very small refactoring to use PTR_ERR_OR_ZERO()"
* tag 'configfs-for-v6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/a.hindborg/linux:
configfs: use PTR_ERR_OR_ZERO() to simplify code
-----BEGIN PGP SIGNATURE-----
iHUEABYKAB0WIQSQHSd0lITzzeNWNm3h3BK/laaZPAUCaNuYpQAKCRDh3BK/laaZ
PBF6APoDWzheST2Gw3LPkU03xF6Yn+ZMP0p3L676yYBb07LrWQD8CBsfOkMei6W/
L+/GaVAbpIsuCQ6GTPE/6HTLWevU2Q0=
=kR5v
-----END PGP SIGNATURE-----
Merge tag 'fuse-update-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse
Pull fuse updates from Miklos Szeredi:
- Extend copy_file_range interface to be fully 64bit capable (Miklos)
- Add selftest for fusectl (Chen Linxuan)
- Move fuse docs into a separate directory (Bagas Sanjaya)
- Allow fuse to enter freezable state in some cases (Sergey
Senozhatsky)
- Clean up writeback accounting after removing tmp page copies (Joanne)
- Optimize virtiofs request handling (Li RongQing)
- Add synchronous FUSE_INIT support (Miklos)
- Allow server to request prune of unused inodes (Miklos)
- Fix deadlock with AIO/sync release (Darrick)
- Add some prep patches for block/iomap support (Darrick)
- Misc fixes and cleanups
* tag 'fuse-update-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse: (26 commits)
fuse: move CREATE_TRACE_POINTS to a separate file
fuse: move the backing file idr and code into a new source file
fuse: enable FUSE_SYNCFS for all fuseblk servers
fuse: capture the unique id of fuse commands being sent
fuse: fix livelock in synchronous file put from fuseblk workers
mm: fix lockdep issues in writeback handling
fuse: add prune notification
fuse: remove redundant calls to fuse_copy_finish() in fuse_notify()
fuse: fix possibly missing fuse_copy_finish() call in fuse_notify()
fuse: remove FUSE_NOTIFY_CODE_MAX from <uapi/linux/fuse.h>
fuse: remove fuse_readpages_end() null mapping check
fuse: fix references to fuse.rst -> fuse/fuse.rst
fuse: allow synchronous FUSE_INIT
fuse: zero initialize inode private data
fuse: remove unused 'inode' parameter in fuse_passthrough_open
virtio_fs: fix the hash table using in virtio_fs_enqueue_req()
mm: remove BDI_CAP_WRITEBACK_ACCT
fuse: use default writeback accounting
virtio_fs: Remove redundant spinlock in virtio_fs_request_complete()
fuse: remove unneeded offset assignment when filling write pages
...
-----BEGIN PGP SIGNATURE-----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=RCDE
-----END PGP SIGNATURE-----
Merge tag 'ovl-update-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/overlayfs/vfs
Pull overlayfs updates from Amir Goldstein:
- Work by André Almeida to support case-insensitive overlayfs
Underlying case-insensitive filesystems casefolding is per directory,
but for overlayfs it is all-or-nothing. It supports layers where all
directories are casefolded (with same encoding) or layers where no
directories are casefolded.
- A fix for a "bug" in Neil's ovl directory lock changes, which only
manifested itself with casefold enabled layers which may return an
unhashed negative dentry from lookup.
* tag 'ovl-update-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/overlayfs/vfs:
ovl: make sure that ovl_create_real() returns a hashed dentry
ovl: Support mounting case-insensitive enabled layers
ovl: Check for casefold consistency when creating new dentries
ovl: Add S_CASEFOLD as part of the inode flag to be copied
ovl: Set case-insensitive dentry operations for ovl sb
ovl: Ensure that all layers have the same encoding
ovl: Create ovl_casefold() to support casefolded strncmp()
ovl: Prepare for mounting case-insensitive enabled layers
fs: Create sb_same_encoding() helper
fs: Create sb_encoding() helper
Turn dentry->d_name into an anon union of const struct qsrt (d_name
itself) and a writable alias (__d_name). With constification of some
struct qstr * arguments of functions that get &dentry->d_name passed
to them, that ends up with all modifications provably done only in
fs/dcache.c (and a fairly small part of it).
Any new places doing modifications will be easy to find - grep for
__d_name will suffice.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
-----BEGIN PGP SIGNATURE-----
iHUEABYKAB0WIQQqUNBr3gm4hGXdBJlZ7Krx/gZQ6wUCaNh6XAAKCRBZ7Krx/gZQ
6wIFAP9nJ9RIsTq2eiqb3YUTQsaFZNu7aqFWiHCFPeHVLzylPwEAgeoGrGdL8zNO
JqAuPPbQxN6Q6n79qAI/vfFvYQCsAQ0=
=88fF
-----END PGP SIGNATURE-----
Merge tag 'pull-qstr' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull d_name audit update from Al Viro:
"Simplifying ->d_name audits, easy part.
Turn dentry->d_name into an anon union of const struct qsrt (d_name
itself) and a writable alias (__d_name).
With constification of some struct qstr * arguments of functions that
get &dentry->d_name passed to them, that ends up with all
modifications provably done only in fs/dcache.c (and a fairly small
part of it).
Any new places doing modifications will be easy to find - grep for
__d_name will suffice"
* tag 'pull-qstr' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
make it easier to catch those who try to modify ->d_name
generic_ci_validate_strict_name(): constify name argument
afs_dir_search: constify qstr argument
afs_edit_dir_{add,remove}(): constify qstr argument
exfat_find(): constify qstr argument
security_dentry_init_security(): constify qstr argument
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
-----BEGIN PGP SIGNATURE-----
iHUEABYKAB0WIQQqUNBr3gm4hGXdBJlZ7Krx/gZQ6wUCaNh7/wAKCRBZ7Krx/gZQ
6/3KAQDagTUkmyJzbYPVnCdxGrM/fx6eUO945JjhQcO/39+YQQEAqPrQXJgUAOsT
mlyJV2JBnDqDxy0JArkp1ejco7X/SQs=
=MqSN
-----END PGP SIGNATURE-----
Merge tag 'pull-nfsctl' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull nfsctl updates from Al Viro:
"nfsctl cleanups and a fix"
* tag 'pull-nfsctl' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
nfsd_get_inode(): lift setting ->i_{,f}op to callers.
nfsdfs_create_files(): switch to simple_start_creating()
_nfsd_symlink(): switch to simple_start_creating()
nfsd_mkdir(): switch to simple_start_creating()
nfsctl: symlink has no business bumping link count of parent directory
change on vfs_parse_fs_string() calling conventions - get rid of
the length argument (almost all callers pass strlen() of the
string argument there), add vfs_parse_fs_qstr() for the cases
that do want separate length
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
-----BEGIN PGP SIGNATURE-----
iHUEABYKAB0WIQQqUNBr3gm4hGXdBJlZ7Krx/gZQ6wUCaNhllQAKCRBZ7Krx/gZQ
6wyiAP9TmyFLBWKC/sDNtRAiGRybEtcwvVZj1agpx0kZIWshUwD7BVg4AfDs+vN3
RoYYg9DR1SP5kZF7h2Ve1T39XDq6ZQU=
=YZFG
-----END PGP SIGNATURE-----
Merge tag 'pull-fs_context' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull fs_context updates from Al Viro:
"Change vfs_parse_fs_string() calling conventions
Get rid of the length argument (almost all callers pass strlen() of
the string argument there), add vfs_parse_fs_qstr() for the cases that
do want separate length"
* tag 'pull-fs_context' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
do_nfs4_mount(): switch to vfs_parse_fs_string()
change the calling conventions for vfs_parse_fs_string()
* saner handling of guards in fs/namespace.c, getting
rid of needlessly strong locking in some of the users.
* lock_mount() calling conventions change - have it set
the environment for attaching to given location, storing the
results in caller-supplied object, without altering the passed
struct path. Make unlock_mount() called as __cleanup for those
objects. It's not exactly guard(), but similar to it.
* MNT_WRITE_HOLD done right - mnt_hold_writers() does *not*
mess with ->mnt_flags anymore, so insertion of a new mount into
->s_mounts of underlying superblock does not, in itself, expose
->mnt_flags of that mount to concurrent modifications.
* getting rid of pathological cases when umount() spends
quadratic time removing the victims from propagation graph -
part of that had been dealt with last cycle, this should finish
it.
* a bunch of stuff constified.
* assorted cleanups.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
-----BEGIN PGP SIGNATURE-----
iHUEABYKAB0WIQQqUNBr3gm4hGXdBJlZ7Krx/gZQ6wUCaNhzLAAKCRBZ7Krx/gZQ
63/IAP4yxJ6e3Pt66Uw0MeuSNmeLsQwb7mYo72lsYHpxjYANZAEAspMaLDU9NHxM
Dy6WDVoJnf7+aDlD6E443YMfPX8XRQM=
=5T+t
-----END PGP SIGNATURE-----
Merge tag 'pull-mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs mount updates from Al Viro:
"Several piles this cycle, this mount-related one being the largest and
trickiest:
- saner handling of guards in fs/namespace.c, getting rid of
needlessly strong locking in some of the users
- lock_mount() calling conventions change - have it set the
environment for attaching to given location, storing the results in
caller-supplied object, without altering the passed struct path.
Make unlock_mount() called as __cleanup for those objects. It's not
exactly guard(), but similar to it
- MNT_WRITE_HOLD done right.
mnt_hold_writers() does *not* mess with ->mnt_flags anymore, so
insertion of a new mount into ->s_mounts of underlying superblock
does not, in itself, expose ->mnt_flags of that mount to concurrent
modifications
- getting rid of pathological cases when umount() spends quadratic
time removing the victims from propagation graph - part of that had
been dealt with last cycle, this should finish it
- a bunch of stuff constified
- assorted cleanups
* tag 'pull-mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (64 commits)
constify {__,}mnt_is_readonly()
WRITE_HOLD machinery: no need for to bump mount_lock seqcount
struct mount: relocate MNT_WRITE_HOLD bit
preparations to taking MNT_WRITE_HOLD out of ->mnt_flags
setup_mnt(): primitive for connecting a mount to filesystem
simplify the callers of mnt_unhold_writers()
copy_mnt_ns(): use guards
copy_mnt_ns(): use the regular mechanism for freeing empty mnt_ns on failure
open_detached_copy(): separate creation of namespace into helper
open_detached_copy(): don't bother with mount_lock_hash()
path_has_submounts(): use guard(mount_locked_reader)
fs/namespace.c: sanitize descriptions for {__,}lookup_mnt()
ecryptfs: get rid of pointless mount references in ecryptfs dentries
umount_tree(): take all victims out of propagation graph at once
do_mount(): use __free(path_put)
do_move_mount_old(): use __free(path_put)
constify can_move_mount_beneath() arguments
path_umount(): constify struct path argument
may_copy_tree(), __do_loopback(): constify struct path argument
path_mount(): constify struct path argument
...
We missed to call dput() on the grabbed dentry.
Fixes: f1a49c1b11 ("f2fs: show the list of donation files")
Reviewed-by: Daeho Jeong <daehojeong@google.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
- The 3 patch series "ida: Remove the ida_simple_xxx() API" from
Christophe Jaillet completes the removal of this legacy IDR API.
- The 9 patch series "panic: introduce panic status function family"
from Jinchao Wang provides a number of cleanups to the panic code and
its various helpers, which were rather ad-hoc and scattered all over the
place.
- The 5 patch series "tools/delaytop: implement real-time keyboard
interaction support" from Fan Yu adds a few nice user-facing usability
changes to the delaytop monitoring tool.
- The 3 patch series "efi: Fix EFI boot with kexec handover (KHO)" from
Evangelos Petrongonas fixes a panic which was happening with the
combination of EFI and KHO.
- The 2 patch series "Squashfs: performance improvement and a sanity
check" from Phillip Lougher teaches squashfs's lseek() about
SEEK_DATA/SEEK_HOLE. A mere 150x speedup was measured for a well-chosen
microbenchmark.
- Plus another 50-odd singleton patches all over the place.
-----BEGIN PGP SIGNATURE-----
iHUEABYIAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCaN78zwAKCRDdBJ7gKXxA
jhLeAQCddTv0XtSUTrvBvmrJVUBrQQeJc+LtNopMIjfAF/WAWAEAogSVKxg+HHEB
GaVixx4zDriNzEqrqiCx9rm4l+YooQA=
=XRe0
-----END PGP SIGNATURE-----
Merge tag 'mm-nonmm-stable-2025-10-02-15-29' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull non-MM updates from Andrew Morton:
- "ida: Remove the ida_simple_xxx() API" from Christophe Jaillet
completes the removal of this legacy IDR API
- "panic: introduce panic status function family" from Jinchao Wang
provides a number of cleanups to the panic code and its various
helpers, which were rather ad-hoc and scattered all over the place
- "tools/delaytop: implement real-time keyboard interaction support"
from Fan Yu adds a few nice user-facing usability changes to the
delaytop monitoring tool
- "efi: Fix EFI boot with kexec handover (KHO)" from Evangelos
Petrongonas fixes a panic which was happening with the combination of
EFI and KHO
- "Squashfs: performance improvement and a sanity check" from Phillip
Lougher teaches squashfs's lseek() about SEEK_DATA/SEEK_HOLE. A mere
150x speedup was measured for a well-chosen microbenchmark
- plus another 50-odd singleton patches all over the place
* tag 'mm-nonmm-stable-2025-10-02-15-29' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (75 commits)
Squashfs: reject negative file sizes in squashfs_read_inode()
kallsyms: use kmalloc_array() instead of kmalloc()
MAINTAINERS: update Sibi Sankar's email address
Squashfs: add SEEK_DATA/SEEK_HOLE support
Squashfs: add additional inode sanity checking
lib/genalloc: fix device leak in of_gen_pool_get()
panic: remove CONFIG_PANIC_ON_OOPS_VALUE
ocfs2: fix double free in user_cluster_connect()
checkpatch: suppress strscpy warnings for userspace tools
cramfs: fix incorrect physical page address calculation
kernel: prevent prctl(PR_SET_PDEATHSIG) from racing with parent process exit
Squashfs: fix uninit-value in squashfs_get_parent
kho: only fill kimage if KHO is finalized
ocfs2: avoid extra calls to strlen() after ocfs2_sprintf_system_inode_name()
kernel/sys.c: fix the racy usage of task_lock(tsk->group_leader) in sys_prlimit64() paths
sched/task.h: fix the wrong comment on task_lock() nesting with tasklist_lock
coccinelle: platform_no_drv_owner: handle also built-in drivers
coccinelle: of_table: handle SPI device ID tables
lib/decompress: use designated initializers for struct compress_format
efi: support booting with kexec handover (KHO)
...
- The 3 patch series "mm, swap: improve cluster scan strategy" from
Kairui Song improves performance and reduces the failure rate of swap
cluster allocation.
- The 4 patch series "support large align and nid in Rust allocators"
from Vitaly Wool permits Rust allocators to set NUMA node and large
alignment when perforning slub and vmalloc reallocs.
- The 2 patch series "mm/damon/vaddr: support stat-purpose DAMOS" from
Yueyang Pan extend DAMOS_STAT's handling of the DAMON operations sets
for virtual address spaces for ops-level DAMOS filters.
- The 3 patch series "execute PROCMAP_QUERY ioctl under per-vma lock"
from Suren Baghdasaryan reduces mmap_lock contention during reads of
/proc/pid/maps.
- The 2 patch series "mm/mincore: minor clean up for swap cache
checking" from Kairui Song performs some cleanup in the swap code.
- The 11 patch series "mm: vm_normal_page*() improvements" from David
Hildenbrand provides code cleanup in the pagemap code.
- The 5 patch series "add persistent huge zero folio support" from
Pankaj Raghav provides a block layer speedup by optionalls making the
huge_zero_pagepersistent, instead of releasing it when its refcount
falls to zero.
- The 3 patch series "kho: fixes and cleanups" from Mike Rapoport adds a
few touchups to the recently added Kexec Handover feature.
- The 10 patch series "mm: make mm->flags a bitmap and 64-bit on all
arches" from Lorenzo Stoakes turns mm_struct.flags into a bitmap. To
end the constant struggle with space shortage on 32-bit conflicting with
64-bit's needs.
- The 2 patch series "mm/swapfile.c and swap.h cleanup" from Chris Li
cleans up some swap code.
- The 7 patch series "selftests/mm: Fix false positives and skip
unsupported tests" from Donet Tom fixes a few things in our selftests
code.
- The 7 patch series "prctl: extend PR_SET_THP_DISABLE to only provide
THPs when advised" from David Hildenbrand "allows individual processes
to opt-out of THP=always into THP=madvise, without affecting other
workloads on the system".
It's a long story - the [1/N] changelog spells out the considerations.
- The 11 patch series "Add and use memdesc_flags_t" from Matthew Wilcox
gets us started on the memdesc project. Please see
https://kernelnewbies.org/MatthewWilcox/Memdescs and
https://blogs.oracle.com/linux/post/introducing-memdesc.
- The 3 patch series "Tiny optimization for large read operations" from
Chi Zhiling improves the efficiency of the pagecache read path.
- The 5 patch series "Better split_huge_page_test result check" from Zi
Yan improves our folio splitting selftest code.
- The 2 patch series "test that rmap behaves as expected" from Wei Yang
adds some rmap selftests.
- The 3 patch series "remove write_cache_pages()" from Christoph Hellwig
removes that function and converts its two remaining callers.
- The 2 patch series "selftests/mm: uffd-stress fixes" from Dev Jain
fixes some UFFD selftests issues.
- The 3 patch series "introduce kernel file mapped folios" from Boris
Burkov introduces the concept of "kernel file pages". Using these
permits btrfs to account its metadata pages to the root cgroup, rather
than to the cgroups of random inappropriate tasks.
- The 2 patch series "mm/pageblock: improve readability of some
pageblock handling" from Wei Yang provides some readability improvements
to the page allocator code.
- The 11 patch series "mm/damon: support ARM32 with LPAE" from SeongJae
Park teaches DAMON to understand arm32 highmem.
- The 4 patch series "tools: testing: Use existing atomic.h for
vma/maple tests" from Brendan Jackman performs some code cleanups and
deduplication under tools/testing/.
- The 2 patch series "maple_tree: Fix testing for 32bit compiles" from
Liam Howlett fixes a couple of 32-bit issues in
tools/testing/radix-tree.c.
- The 2 patch series "kasan: unify kasan_enabled() and remove
arch-specific implementations" from Sabyrzhan Tasbolatov moves KASAN
arch-specific initialization code into a common arch-neutral
implementation.
- The 3 patch series "mm: remove zpool" from Johannes Weiner removes
zspool - an indirection layer which now only redirects to a single thing
(zsmalloc).
- The 2 patch series "mm: task_stack: Stack handling cleanups" from
Pasha Tatashin makes a couple of cleanups in the fork code.
- The 37 patch series "mm: remove nth_page()" from David Hildenbrand
makes rather a lot of adjustments at various nth_page() callsites,
eventually permitting the removal of that undesirable helper function.
- The 2 patch series "introduce kasan.write_only option in hw-tags" from
Yeoreum Yun creates a KASAN read-only mode for ARM, using that
architecture's memory tagging feature. It is felt that a read-only mode
KASAN is suitable for use in production systems rather than debug-only.
- The 3 patch series "mm: hugetlb: cleanup hugetlb folio allocation"
from Kefeng Wang does some tidying in the hugetlb folio allocation code.
- The 12 patch series "mm: establish const-correctness for pointer
parameters" from Max Kellermann makes quite a number of the MM API
functions more accurate about the constness of their arguments. This
was getting in the way of subsystems (in this case CEPH) when they
attempt to improving their own const/non-const accuracy.
- The 7 patch series "Cleanup free_pages() misuse" from Vishal Moola
fixes a number of code sites which were confused over when to use
free_pages() vs __free_pages().
- The 3 patch series "Add Rust abstraction for Maple Trees" from Alice
Ryhl makes the mapletree code accessible to Rust. Required by nouveau
and by its forthcoming successor: the new Rust Nova driver.
- The 2 patch series "selftests/mm: split_huge_page_test:
split_pte_mapped_thp improvements" from David Hildenbrand adds a fix and
some cleanups to the thp selftesting code.
- The 14 patch series "mm, swap: introduce swap table as swap cache
(phase I)" from Chris Li and Kairui Song is the first step along the
path to implementing "swap tables" - a new approach to swap allocation
and state tracking which is expected to yield speed and space
improvements. This patchset itself yields a 5-20% performance benefit
in some situations.
- The 3 patch series "Some ptdesc cleanups" from Matthew Wilcox utilizes
the new memdesc layer to clean up the ptdesc code a little.
- The 3 patch series "Fix va_high_addr_switch.sh test failure" from
Chunyu Hu fixes some issues in our 5-level pagetable selftesting code.
- The 2 patch series "Minor fixes for memory allocation profiling" from
Suren Baghdasaryan addresses a couple of minor issues in relatively new
memory allocation profiling feature.
- The 3 patch series "Small cleanups" from Matthew Wilcox has a few
cleanups in preparation for more memdesc work.
- The 2 patch series "mm/damon: add addr_unit for DAMON_LRU_SORT and
DAMON_RECLAIM" from Quanmin Yan makes some changes to DAMON in
furtherance of supporting arm highmem.
- The 2 patch series "selftests/mm: Add -Wunreachable-code and fix
warnings" from Muhammad Anjum adds that compiler check to selftests code
and fixes the fallout, by removing dead code.
- The 10 patch series "Improvements to Victim Process Thawing and OOM
Reaper Traversal Order" from zhongjinji makes a number of improvements
in the OOM killer: mainly thawing a more appropriate group of victim
threads so they can release resources.
- The 5 patch series "mm/damon: misc fixups and improvements for 6.18"
from SeongJae Park is a bunch of small and unrelated fixups for DAMON.
- The 7 patch series "mm/damon: define and use DAMON initialization
check function" from SeongJae Park implement reliability and
maintainability improvements to a recently-added bug fix.
- The 2 patch series "mm/damon/stat: expose auto-tuned intervals and
non-idle ages" from SeongJae Park provides additional transparency to
userspace clients of the DAMON_STAT information.
- The 2 patch series "Expand scope of khugepaged anonymous collapse"
from Dev Jain removes some constraints on khubepaged's collapsing of
anon VMAs. It also increases the success rate of MADV_COLLAPSE against
an anon vma.
- The 2 patch series "mm: do not assume file == vma->vm_file in
compat_vma_mmap_prepare()" from Lorenzo Stoakes moves us further towards
removal of file_operations.mmap(). This patchset concentrates upon
clearing up the treatment of stacked filesystems.
- The 6 patch series "mm: Improve mlock tracking for large folios" from
Kiryl Shutsemau provides some fixes and improvements to mlock's tracking
of large folios. /proc/meminfo's "Mlocked" field became more accurate.
- The 2 patch series "mm/ksm: Fix incorrect accounting of KSM counters
during fork" from Donet Tom fixes several user-visible KSM stats
inaccuracies across forks and adds selftest code to verify these
counters.
- The 2 patch series "mm_slot: fix the usage of mm_slot_entry" from Wei
Yang addresses some potential but presently benign issues in KSM's
mm_slot handling.
-----BEGIN PGP SIGNATURE-----
iHUEABYKAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCaN3cywAKCRDdBJ7gKXxA
jtaPAQDmIuIu7+XnVUK5V11hsQ/5QtsUeLHV3OsAn4yW5/3dEQD/UddRU08ePN+1
2VRB0EwkLAdfMWW7TfiNZ+yhuoiL/AA=
=4mhY
-----END PGP SIGNATURE-----
Merge tag 'mm-stable-2025-10-01-19-00' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull MM updates from Andrew Morton:
- "mm, swap: improve cluster scan strategy" from Kairui Song improves
performance and reduces the failure rate of swap cluster allocation
- "support large align and nid in Rust allocators" from Vitaly Wool
permits Rust allocators to set NUMA node and large alignment when
perforning slub and vmalloc reallocs
- "mm/damon/vaddr: support stat-purpose DAMOS" from Yueyang Pan extend
DAMOS_STAT's handling of the DAMON operations sets for virtual
address spaces for ops-level DAMOS filters
- "execute PROCMAP_QUERY ioctl under per-vma lock" from Suren
Baghdasaryan reduces mmap_lock contention during reads of
/proc/pid/maps
- "mm/mincore: minor clean up for swap cache checking" from Kairui Song
performs some cleanup in the swap code
- "mm: vm_normal_page*() improvements" from David Hildenbrand provides
code cleanup in the pagemap code
- "add persistent huge zero folio support" from Pankaj Raghav provides
a block layer speedup by optionalls making the
huge_zero_pagepersistent, instead of releasing it when its refcount
falls to zero
- "kho: fixes and cleanups" from Mike Rapoport adds a few touchups to
the recently added Kexec Handover feature
- "mm: make mm->flags a bitmap and 64-bit on all arches" from Lorenzo
Stoakes turns mm_struct.flags into a bitmap. To end the constant
struggle with space shortage on 32-bit conflicting with 64-bit's
needs
- "mm/swapfile.c and swap.h cleanup" from Chris Li cleans up some swap
code
- "selftests/mm: Fix false positives and skip unsupported tests" from
Donet Tom fixes a few things in our selftests code
- "prctl: extend PR_SET_THP_DISABLE to only provide THPs when advised"
from David Hildenbrand "allows individual processes to opt-out of
THP=always into THP=madvise, without affecting other workloads on the
system".
It's a long story - the [1/N] changelog spells out the considerations
- "Add and use memdesc_flags_t" from Matthew Wilcox gets us started on
the memdesc project. Please see
https://kernelnewbies.org/MatthewWilcox/Memdescs and
https://blogs.oracle.com/linux/post/introducing-memdesc
- "Tiny optimization for large read operations" from Chi Zhiling
improves the efficiency of the pagecache read path
- "Better split_huge_page_test result check" from Zi Yan improves our
folio splitting selftest code
- "test that rmap behaves as expected" from Wei Yang adds some rmap
selftests
- "remove write_cache_pages()" from Christoph Hellwig removes that
function and converts its two remaining callers
- "selftests/mm: uffd-stress fixes" from Dev Jain fixes some UFFD
selftests issues
- "introduce kernel file mapped folios" from Boris Burkov introduces
the concept of "kernel file pages". Using these permits btrfs to
account its metadata pages to the root cgroup, rather than to the
cgroups of random inappropriate tasks
- "mm/pageblock: improve readability of some pageblock handling" from
Wei Yang provides some readability improvements to the page allocator
code
- "mm/damon: support ARM32 with LPAE" from SeongJae Park teaches DAMON
to understand arm32 highmem
- "tools: testing: Use existing atomic.h for vma/maple tests" from
Brendan Jackman performs some code cleanups and deduplication under
tools/testing/
- "maple_tree: Fix testing for 32bit compiles" from Liam Howlett fixes
a couple of 32-bit issues in tools/testing/radix-tree.c
- "kasan: unify kasan_enabled() and remove arch-specific
implementations" from Sabyrzhan Tasbolatov moves KASAN arch-specific
initialization code into a common arch-neutral implementation
- "mm: remove zpool" from Johannes Weiner removes zspool - an
indirection layer which now only redirects to a single thing
(zsmalloc)
- "mm: task_stack: Stack handling cleanups" from Pasha Tatashin makes a
couple of cleanups in the fork code
- "mm: remove nth_page()" from David Hildenbrand makes rather a lot of
adjustments at various nth_page() callsites, eventually permitting
the removal of that undesirable helper function
- "introduce kasan.write_only option in hw-tags" from Yeoreum Yun
creates a KASAN read-only mode for ARM, using that architecture's
memory tagging feature. It is felt that a read-only mode KASAN is
suitable for use in production systems rather than debug-only
- "mm: hugetlb: cleanup hugetlb folio allocation" from Kefeng Wang does
some tidying in the hugetlb folio allocation code
- "mm: establish const-correctness for pointer parameters" from Max
Kellermann makes quite a number of the MM API functions more accurate
about the constness of their arguments. This was getting in the way
of subsystems (in this case CEPH) when they attempt to improving
their own const/non-const accuracy
- "Cleanup free_pages() misuse" from Vishal Moola fixes a number of
code sites which were confused over when to use free_pages() vs
__free_pages()
- "Add Rust abstraction for Maple Trees" from Alice Ryhl makes the
mapletree code accessible to Rust. Required by nouveau and by its
forthcoming successor: the new Rust Nova driver
- "selftests/mm: split_huge_page_test: split_pte_mapped_thp
improvements" from David Hildenbrand adds a fix and some cleanups to
the thp selftesting code
- "mm, swap: introduce swap table as swap cache (phase I)" from Chris
Li and Kairui Song is the first step along the path to implementing
"swap tables" - a new approach to swap allocation and state tracking
which is expected to yield speed and space improvements. This
patchset itself yields a 5-20% performance benefit in some situations
- "Some ptdesc cleanups" from Matthew Wilcox utilizes the new memdesc
layer to clean up the ptdesc code a little
- "Fix va_high_addr_switch.sh test failure" from Chunyu Hu fixes some
issues in our 5-level pagetable selftesting code
- "Minor fixes for memory allocation profiling" from Suren Baghdasaryan
addresses a couple of minor issues in relatively new memory
allocation profiling feature
- "Small cleanups" from Matthew Wilcox has a few cleanups in
preparation for more memdesc work
- "mm/damon: add addr_unit for DAMON_LRU_SORT and DAMON_RECLAIM" from
Quanmin Yan makes some changes to DAMON in furtherance of supporting
arm highmem
- "selftests/mm: Add -Wunreachable-code and fix warnings" from Muhammad
Anjum adds that compiler check to selftests code and fixes the
fallout, by removing dead code
- "Improvements to Victim Process Thawing and OOM Reaper Traversal
Order" from zhongjinji makes a number of improvements in the OOM
killer: mainly thawing a more appropriate group of victim threads so
they can release resources
- "mm/damon: misc fixups and improvements for 6.18" from SeongJae Park
is a bunch of small and unrelated fixups for DAMON
- "mm/damon: define and use DAMON initialization check function" from
SeongJae Park implement reliability and maintainability improvements
to a recently-added bug fix
- "mm/damon/stat: expose auto-tuned intervals and non-idle ages" from
SeongJae Park provides additional transparency to userspace clients
of the DAMON_STAT information
- "Expand scope of khugepaged anonymous collapse" from Dev Jain removes
some constraints on khubepaged's collapsing of anon VMAs. It also
increases the success rate of MADV_COLLAPSE against an anon vma
- "mm: do not assume file == vma->vm_file in compat_vma_mmap_prepare()"
from Lorenzo Stoakes moves us further towards removal of
file_operations.mmap(). This patchset concentrates upon clearing up
the treatment of stacked filesystems
- "mm: Improve mlock tracking for large folios" from Kiryl Shutsemau
provides some fixes and improvements to mlock's tracking of large
folios. /proc/meminfo's "Mlocked" field became more accurate
- "mm/ksm: Fix incorrect accounting of KSM counters during fork" from
Donet Tom fixes several user-visible KSM stats inaccuracies across
forks and adds selftest code to verify these counters
- "mm_slot: fix the usage of mm_slot_entry" from Wei Yang addresses
some potential but presently benign issues in KSM's mm_slot handling
* tag 'mm-stable-2025-10-01-19-00' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (372 commits)
mm: swap: check for stable address space before operating on the VMA
mm: convert folio_page() back to a macro
mm/khugepaged: use start_addr/addr for improved readability
hugetlbfs: skip VMAs without shareable locks in hugetlb_vmdelete_list
alloc_tag: fix boot failure due to NULL pointer dereference
mm: silence data-race in update_hiwater_rss
mm/memory-failure: don't select MEMORY_ISOLATION
mm/khugepaged: remove definition of struct khugepaged_mm_slot
mm/ksm: get mm_slot by mm_slot_entry() when slot is !NULL
hugetlb: increase number of reserving hugepages via cmdline
selftests/mm: add fork inheritance test for ksm_merging_pages counter
mm/ksm: fix incorrect KSM counter handling in mm_struct during fork
drivers/base/node: fix double free in register_one_node()
mm: remove PMD alignment constraint in execmem_vmalloc()
mm/memory_hotplug: fix typo 'esecially' -> 'especially'
mm/rmap: improve mlock tracking for large folios
mm/filemap: map entire large folio faultaround
mm/fault: try to map the entire file folio in finish_fault()
mm/rmap: mlock large folios in try_to_unmap_one()
mm/rmap: fix a mlock race condition in folio_referenced_one()
...
-----BEGIN PGP SIGNATURE-----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=kOmc
-----END PGP SIGNATURE-----
Merge tag 'for-6.18/block-20250929' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux
Pull block updates from Jens Axboe:
- NVMe pull request via Keith:
- FC target fixes (Daniel)
- Authentication fixes and updates (Martin, Chris)
- Admin controller handling (Kamaljit)
- Target lockdep assertions (Max)
- Keep-alive updates for discovery (Alastair)
- Suspend quirk (Georg)
- MD pull request via Yu:
- Add support for a lockless bitmap.
A key feature for the new bitmap are that the IO fastpath is
lockless. If a user issues lots of write IO to the same bitmap
bit in a short time, only the first write has additional overhead
to update bitmap bit, no additional overhead for the following
writes.
By supporting only resync or recover written data, means in the
case creating new array or replacing with a new disk, there is no
need to do a full disk resync/recovery.
- Switch ->getgeo() and ->bios_param() to using struct gendisk rather
than struct block_device.
- Rust block changes via Andreas. This series adds configuration via
configfs and remote completion to the rnull driver. The series also
includes a set of changes to the rust block device driver API: a few
cleanup patches, and a few features supporting the rnull changes.
The series removes the raw buffer formatting logic from
`kernel::block` and improves the logic available in `kernel::string`
to support the same use as the removed logic.
- floppy arch cleanups
- Reduce the number of dereferencing needed for ublk commands
- Restrict supported sockets for nbd. Mostly done to eliminate a class
of issues perpetually reported by syzbot, by using nonsensical socket
setups.
- A few s390 dasd block fixes
- Fix a few issues around atomic writes
- Improve DMA interation for integrity requests
- Improve how iovecs are treated with regards to O_DIRECT aligment
constraints.
We used to require each segment to adhere to the constraints, now
only the request as a whole needs to.
- Clean up and improve p2p support, enabling use of p2p for metadata
payloads
- Improve locking of request lookup, using SRCU where appropriate
- Use page references properly for brd, avoiding very long RCU sections
- Fix ordering of recursively submitted IOs
- Clean up and improve updating nr_requests for a live device
- Various fixes and cleanups
* tag 'for-6.18/block-20250929' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux: (164 commits)
s390/dasd: enforce dma_alignment to ensure proper buffer validation
s390/dasd: Return BLK_STS_INVAL for EINVAL from do_dasd_request
ublk: remove redundant zone op check in ublk_setup_iod()
nvme: Use non zero KATO for persistent discovery connections
nvmet: add safety check for subsys lock
nvme-core: use nvme_is_io_ctrl() for I/O controller check
nvme-core: do ioccsz/iorcsz validation only for I/O controllers
nvme-core: add method to check for an I/O controller
blk-cgroup: fix possible deadlock while configuring policy
blk-mq: fix null-ptr-deref in blk_mq_free_tags() from error path
blk-mq: Fix more tag iteration function documentation
selftests: ublk: fix behavior when fio is not installed
ublk: don't access ublk_queue in ublk_unmap_io()
ublk: pass ublk_io to __ublk_complete_rq()
ublk: don't access ublk_queue in ublk_need_complete_req()
ublk: don't access ublk_queue in ublk_check_commit_and_fetch()
ublk: don't pass ublk_queue to ublk_fetch()
ublk: don't access ublk_queue in ublk_config_io_buf()
ublk: don't access ublk_queue in ublk_check_fetch_buf()
ublk: pass q_id and tag to __ublk_check_and_get_req()
...
-----BEGIN PGP SIGNATURE-----
iQJEBAABCAAuFiEEwPw5LcreJtl1+l5K99NY+ylx4KYFAmjbLEcQHGF4Ym9lQGtl
cm5lbC5kawAKCRD301j7KXHgpnEUD/4/FgfQP2LFS/88BBF5ukZjRySe4wmyyZ2Q
MFh2ehdxzkZxVXjbeA2wRAXdqjw2MbNhx8tzU9VrW7rweNDZxHbwi6jJIP7OAjxE
4ZP0goAQj7P0TFyXC2KGj7k6dP20FkAltx5gGLVwsuOWDDrQKp2EykAcRnGYAD4W
3yf+nojVr2bjHyO7dx8dM7jUDjMg7J8nmHD6zgHOlHRLblWwfzw907bhz+eBX/FI
9kYvtX2c9MgY4Isa+43rZd5qvj9S3Cs8PD6tFPbq+n+3l7yWgMBTu/y+SNI8hupT
W7CqjPcpvppFHhPkcXDA3yARnW7ccEx5aiQuvUCmRUioHtGwXvC63HMp8OjcQspV
NNoIHYFsi1alzYq2kJLxY1IleWZ8j0hUkSSU8u7al8VIvtD43LGkv51xavxQUFjg
BO9mLyS51H2agffySs4vhHJE82lZizvmh/RJfSJ0ezALzE2k42MrximX1D1rBJE6
KPOhCiPt/jqpQMyqDYnY10FgTXQVwgPIVH1JLpo611tPFHlGW8Y4YxxR1Xduh5JX
jbGLEjVREsDZ7EHrimLNLmJRAQpyQujv/yhf7k96gWBelVwVuISQLI4Ca5IeVQyk
9yifgLXNGddgAwj0POMFeKXSm2We9nrrPDYLCKrsBMSN96/3SLveJC7fkW88aUZr
ye4/K8Y3vA==
=uc/3
-----END PGP SIGNATURE-----
Merge tag 'for-6.18/io_uring-20250929' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux
Pull io_uring updates from Jens Axboe:
- Store ring provided buffers locally for the users, rather than stuff
them into struct io_kiocb.
These types of buffers must always be fully consumed or recycled in
the current context, and leaving them in struct io_kiocb is hence not
a good ideas as that struct has a vastly different life time.
Basically just an architecture cleanup that can help prevent issues
with ring provided buffers in the future.
- Support for mixed CQE sizes in the same ring.
Before this change, a CQ ring either used the default 16b CQEs, or it
was setup with 32b CQE using IORING_SETUP_CQE32. For use cases where
a few 32b CQEs were needed, this caused everything else to use big
CQEs. This is wasteful both in terms of memory usage, but also memory
bandwidth for the posted CQEs.
With IORING_SETUP_CQE_MIXED, applications may use request types that
post both normal 16b and big 32b CQEs on the same ring.
- Add helpers for async data management, to make it harder for opcode
handlers to mess it up.
- Add support for multishot for uring_cmd, which ublk can use. This
helps improve efficiency, by providing a persistent request type that
can trigger multiple CQEs.
- Add initial support for ring feature querying.
We had basic support for probe operations, but the API isn't great.
Rather than expand that, add support for QUERY which is easily
expandable and can cover a lot more cases than the existing probe
support. This will help applications get a better idea of what
operations are supported on a given host.
- zcrx improvements from Pavel:
- Improve refill entry alignment for better caching
- Various cleanups, especially around deduplicating normal
memory vs dmabuf setup.
- Generalisation of the niov size (Patch 12). It's still hard
coded to PAGE_SIZE on init, but will let the user to specify
the rx buffer length on setup.
- Syscall / synchronous bufer return. It'll be used as a slow
fallback path for returning buffers when the refill queue is
full. Useful for tolerating slight queue size misconfiguration
or with inconsistent load.
- Accounting more memory to cgroups.
- Additional independent cleanups that will also be useful for
mutli-area support.
- Various fixes and cleanups
* tag 'for-6.18/io_uring-20250929' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux: (68 commits)
io_uring/cmd: drop unused res2 param from io_uring_cmd_done()
io_uring: fix nvme's 32b cqes on mixed cq
io_uring/query: cap number of queries
io_uring/query: prevent infinite loops
io_uring/zcrx: account niov arrays to cgroup
io_uring/zcrx: allow synchronous buffer return
io_uring/zcrx: introduce io_parse_rqe()
io_uring/zcrx: don't adjust free cache space
io_uring/zcrx: use guards for the refill lock
io_uring/zcrx: reduce netmem scope in refill
io_uring/zcrx: protect netdev with pp_lock
io_uring/zcrx: rename dma lock
io_uring/zcrx: make niov size variable
io_uring/zcrx: set sgt for umem area
io_uring/zcrx: remove dmabuf_offset
io_uring/zcrx: deduplicate area mapping
io_uring/zcrx: pass ifq to io_zcrx_alloc_fallback()
io_uring/zcrx: check all niovs filled with dma addresses
io_uring/zcrx: move area reg checks into io_import_area
io_uring/zcrx: don't pass slot to io_zcrx_create_area
...
Previously, specifying both multichannel and max_channels=1 as mount
options would leave multichannel enabled, even though it is not
meaningful when only one channel is allowed. This led to confusion and
inconsistent behavior, as the client would advertise multichannel
capability but never establish secondary channels.
Fix this by forcing multichannel to false whenever max_channels=1,
ensuring the mount configuration is consistent and matches user intent.
This prevents the client from advertising or attempting multichannel
support when it is not possible.
Signed-off-by: Rajasi Mandal <rajasimandal@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Test generic/637 spotted a problem with create of a new file in a
cached directory (by the same client) could cause cases where the
new file does not show up properly in ls on that client until the
lease times out.
Fixes: 037e1bae58 ("smb: client: use ParentLeaseKey in cifs_do_create")
Cc: stable@vger.kernel.org
Signed-off-by: Bharath SM <bharathsm@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
When the parent directory has a valid and complete cached enumeration we
can assume that negative dentries are not present in the directory, thus
we can return without issuing a request.
This reduces traffic for common ENOENT when the directory entries are
cached.
Signed-off-by: Henrique Carvalho <henrique.carvalho@suse.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
When dentry is NULL, the current code acquires the spinlock and traverses
the entire list, but the condition (dentry && cfid->dentry == dentry)
ensures no match will ever be found.
Return -ENOENT early in this case, avoiding unnecessary lock acquisition
and list traversal.
Signed-off-by: Henrique Carvalho <henrique.carvalho@suse.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
open_cached_dir() will only return a valid cfid, which has both
has_lease = true and time != 0.
Remove the pointless check of cfid->has_lease right after
open_cached_dir() returns no error.
Signed-off-by: Henrique Carvalho <henrique.carvalho@suse.com>
Reviewed-by: Enzo Matsumiya <ematsumiya@suse.de>
Signed-off-by: Steve French <stfrench@microsoft.com>
When io_uring is used in the same task as CIFS, there might be
unnecessary reconnects, causing issues in user-space applications
like QEMU with a log like:
> CIFS: VFS: \\10.10.100.81 Error -512 sending data on socket to server
Certain io_uring completions might be added to task_work with
notify_method being TWA_SIGNAL and thus TIF_NOTIFY_SIGNAL is set for
the task.
In __smb_send_rqst(), signals are masked before calling
smb_send_kvec(), but the masking does not apply to TIF_NOTIFY_SIGNAL.
If sk_stream_wait_memory() is reached via sock_sendmsg() while
TIF_NOTIFY_SIGNAL is set, signal_pending(current) will evaluate to
true there, and -EINTR will be propagated all the way from
sk_stream_wait_memory() to sock_sendmsg() in smb_send_kvec().
Afterwards, __smb_send_rqst() will see that not everything was written
and reconnect.
Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
The fid_lock in struct cached_fid does not currently provide any real
synchronization. Previously, it had the intention to prevent a double
release of the dentry, but every change to cfid->dentry is already
protected either by cfid_list_lock (while the entry is in the list) or
happens after the cfid has been removed (so no other thread should find
it).
Since there is no scenario in which fid_lock prevents any race, it is
vestigial and can be removed along with its associated
spin_lock()/spin_unlock() calls.
Signed-off-by: Henrique Carvalho <henrique.carvalho@suse.com>
Reviewed-by: Enzo Matsumiya <ematsumiya@suse.de>
Signed-off-by: Steve French <stfrench@microsoft.com>
open_cached_dir_by_dentry() was missing an update of
cfid->last_access_time to jiffies, similar to what open_cached_dir()
has.
Add it to the function.
Signed-off-by: Henrique Carvalho <henrique.carvalho@suse.com>
Reviewed-by: Enzo Matsumiya <ematsumiya@suse.de>
Signed-off-by: Steve French <stfrench@microsoft.com>
open_cached_dir_by_dentry() was exposing an invalid cached directory to
callers. The validity check outside the function was exclusively based
on cfid->time.
Add validity check before returning success and introduce
is_valid_cached_dir() helper for consistent checks across the code.
Signed-off-by: Henrique Carvalho <henrique.carvalho@suse.com>
Reviwed-by: Enzo Matsumiya <ematsumiya@suse.de>
Signed-off-by: Steve French <stfrench@microsoft.com>
Add lightweight accounting for directory lease cache usage
to aid debugging and limiting cache size in future. Track
per-directory entry/byte counts and maintain per-tcon
aggregates. Also expose the totals in /proc/fs/cifs/open_dirs.
Signed-off-by: Bharath SM <bharathsm@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Add write-only /sys/module/cifs/parameters/drop_dir_cache. Writing a
non-zero value iterates all tcons and calls invalidate_all_cached_dirs()
to drop cached directory entries. This is useful to force a dirent cache
drop across mounts for debugging and testing purpose.
Signed-off-by: Bharath SM <bharathsm@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
nfserr_dropit hasn't been used for over a decade, since rq_dropme and
the RQ_DROPME were introduced.
Time to get rid of it completely.
Signed-off-by: NeilBrown <neil@brown.name>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Add 'io_cache_read' to NFSD's debugfs interface so that any data
read by NFSD will either be:
- cached using page cache (NFSD_IO_BUFFERED=0)
- cached but removed from the page cache upon completion
(NFSD_IO_DONTCACHE=1).
io_cache_read may be set by writing to:
/sys/kernel/debug/nfsd/io_cache_read
Add 'io_cache_write' to NFSD's debugfs interface so that any data
written by NFSD will either be:
- cached using page cache (NFSD_IO_BUFFERED=0)
- cached but removed from the page cache upon completion
(NFSD_IO_DONTCACHE=1).
io_cache_write may be set by writing to:
/sys/kernel/debug/nfsd/io_cache_write
The default value for both settings is NFSD_IO_BUFFERED, which is
NFSD's existing behavior for both read and write. Changes to these
settings take immediate effect for all exports and NFS versions.
Currently only xfs and ext4 implement RWF_DONTCACHE. For file
systems that do not implement RWF_DONTCACHE, NFSD use only buffered
I/O when the io_cache setting is NFSD_IO_DONTCACHE.
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
RFC 8881 Section 18.43.3 states:
> If the metadata server is in a grace period, and does not persist
> layouts and device ID to device address mappings, then it MUST
> return NFS4ERR_GRACE (see Section 8.4.2.1).
Jeff observed that this suggests the grace period check is better
done by the individual layout type implementations, because checking
for the server grace period is unnecessary for some layout types.
Suggested-by: Jeff Layton <jlayton@kernel.org>
Link: https://lore.kernel.org/linux-nfs/7h5p5ktyptyt37u6jhpbjfd5u6tg44lriqkdc7iz7czeeabrvo@ijgxz27dw4sg/T/#t
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
In commit 4a0de50a44bb ("nfsd: decouple the xprtsec policy check from
check_nfsd_access()") we added a NULL check on "rqstp" to earlier in
the function. This check is no longer required so delete it.
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Scott Mayhew <smayhew@redhat.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
If the loca_reclaim field is set to TRUE, this indicates that the client
is attempting to commit changes to a layout after the restart of the
metadata server during the metadata server's recovery grace period. This
type of request may be necessary when the client has uncommitted writes
to provisionally allocated byte-ranges of a file that were sent to the
storage devices before the restart of the metadata server. See RFC 8881,
section 18.42.3.
Without this, the client is not able to increase the file size and commit
preallocated extents when the block/scsi layout server is restarted
during a write and is in a grace period. And when the grace period ends,
the client also cannot perform layoutcommit because the old layout state
becomes invalid, resulting in file corruption.
Co-developed-by: Konstantin Evtushenko <koevtushenko@yandex.com>
Signed-off-by: Konstantin Evtushenko <koevtushenko@yandex.com>
Signed-off-by: Sergey Bashirov <sergeybashirov@gmail.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Print the lease/oplock caching state for each open file as a
compact string of letters: R (read), H (handle), W (write).
Signed-off-by: Bharath SM <bharathsm@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
