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Remove validate_constant_table() since:
- It has no caller.
- It has below 3 bugs for good constant table array array[] which must
end with a empty entry, and take below invocation for explaination:
validate_constant_table(array, ARRAY_SIZE(array), ...)
- Always return wrong value due to the last empty entry.
- Imprecise error message for missorted case.
- Potential NULL pointer dereference since the last pr_err() may use
@tbl[i].name NULL pointer to print the last empty entry's name.
Signed-off-by: Zijun Hu <quic_zijuhu@quicinc.com>
Link: https://lore.kernel.org/20250415-fix_fs-v4-1-5d575124a3ff@quicinc.com
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Christian Brauner <brauner@kernel.org>
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Delete macro fsparam_u32hex() since:
- it has no caller.
- it uses as type @fs_param_is_u32_hex which is never defined, so will
cause compile error when caller uses it.
Signed-off-by: Zijun Hu <quic_zijuhu@quicinc.com>
Link: https://lore.kernel.org/20250411-fix_fs-v2-1-5d3395c102e4@quicinc.com
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Christian Brauner <brauner@kernel.org>
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Add the missing 'name' parameter to the mount_api documentation for
fs_validate_description().
Fixes: 96cafb9ccb15 ("fs_parser: remove fs_parameter_description name field")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/r/20241125215021.231758-1-rdunlap@infradead.org
Cc: Eric Sandeen <sandeen@redhat.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Jan Kara <jack@suse.cz>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: linux-doc@vger.kernel.org
Signed-off-by: Christian Brauner <brauner@kernel.org>
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Multiple filesystems take uid and gid as options, and the code to
create the ID from an integer and validate it is standard boilerplate
that can be moved into common helper functions, so do that for
consistency and less cut&paste.
This also helps avoid the buggy pattern noted by Seth Jenkins at
https://lore.kernel.org/lkml/CALxfFW4BXhEwxR0Q5LSkg-8Vb4r2MONKCcUCVioehXQKr35eHg@mail.gmail.com/
because uid/gid parsing will fail before any assignment in most
filesystems.
Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
Link: https://lore.kernel.org/r/de859d0a-feb9-473d-a5e2-c195a3d47abb@redhat.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
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This isn't ever used by VFS now, and it couldn't even work. Any FS that
uses the SECURITY_LSM_NATIVE_LABELS flag needs to also process the
value returned back from the LSM, so it needs to do its
security_sb_set_mnt_opts() call on its own anyway.
Signed-off-by: Ondrej Mosnacek <omosnace@redhat.com>
Signed-off-by: Christian Brauner (Microsoft) <brauner@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 updates from Ted Ts'o:
"A large number of cleanups and bug fixes, with many of the bug fixes
found by Syzbot and fuzzing. (Many of the bug fixes involve less-used
ext4 features such as fast_commit, inline_data and bigalloc)
In addition, remove the writepage function for ext4, since the
medium-term plan is to remove ->writepage() entirely. (The VM doesn't
need or want writepage() for writeback, since it is fine with
->writepages() so long as ->migrate_folio() is implemented)"
* tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (58 commits)
ext4: fix reserved cluster accounting in __es_remove_extent()
ext4: fix inode leak in ext4_xattr_inode_create() on an error path
ext4: allocate extended attribute value in vmalloc area
ext4: avoid unaccounted block allocation when expanding inode
ext4: initialize quota before expanding inode in setproject ioctl
ext4: stop providing .writepage hook
mm: export buffer_migrate_folio_norefs()
ext4: switch to using write_cache_pages() for data=journal writeout
jbd2: switch jbd2_submit_inode_data() to use fs-provided hook for data writeout
ext4: switch to using ext4_do_writepages() for ordered data writeout
ext4: move percpu_rwsem protection into ext4_writepages()
ext4: provide ext4_do_writepages()
ext4: add support for writepages calls that cannot map blocks
ext4: drop pointless IO submission from ext4_bio_write_page()
ext4: remove nr_submitted from ext4_bio_write_page()
ext4: move keep_towrite handling to ext4_bio_write_page()
ext4: handle redirtying in ext4_bio_write_page()
ext4: fix kernel BUG in 'ext4_write_inline_data_end()'
ext4: make ext4_mb_initialize_context return void
ext4: fix deadlock due to mbcache entry corruption
...
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Before the commit 461c3af045d3 ("ext4: Change handle_mount_opt() to use
fs_parameter") ext4 mount option journal_path did follow links in the
provided path.
Bring this behavior back by allowing to pass pathwalk flags to
fs_lookup_param().
Fixes: 461c3af045d3 ("ext4: Change handle_mount_opt() to use fs_parameter")
Signed-off-by: Lukas Czerner <lczerner@redhat.com>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Link: https://lore.kernel.org/r/20221004135803.32283-1-lczerner@redhat.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@kernel.org
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Remove the pointless keying argument and associated enum and pass the
fill_super callback and a "bool reconf" instead. Also mark the function
static given that there are no users outside of super.c.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Change wording to say that messages are logged to the kernel log
buffer instead of to dmesg. dmesg is just one program that can
print the kernel log buffer.
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: David Howells <dhowells@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Link: https://lore.kernel.org/r/20201202012409.19194-1-rdunlap@infradead.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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Fix capitalization in two headings, correct one verb, and
demote one heading to a section heading.
Fixes: 791a17ee1973 ("docs: filesystems: convert mount_api.txt to ReST")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/adaf123c-b394-f78c-53c0-671d7fda45e7@infradead.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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Drop the doubled word "struct".
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: linux-doc@vger.kernel.org
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: linux-fsdevel@vger.kernel.org
Link: https://lore.kernel.org/r/20200703214325.31036-7-rdunlap@infradead.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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- Add a SPDX header;
- Adjust document and section titles;
- Some whitespace fixes and new line breaks;
- Mark literal blocks as such;
- Add table markups;
- Add lists markups;
- Add it to filesystems/index.rst.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/32332c1659a28c22561cb5e64162c959856066b4.1588021877.git.mchehab+huawei@kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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