linux-rng/include/linux/fs_parser.h, branch linus/master

fs/fs_parse: Remove unused and problematic validate_constant_table()

2025-04-21T08:27:59Z

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 Link: https://lore.kernel.org/20250415-fix_fs-v4-1-5d575124a3ff@quicinc.com Reviewed-by: Jan Kara Signed-off-by: Christian Brauner

fs/fs_parse: Delete macro fsparam_u32hex()

2025-04-21T08:27:58Z

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 Link: https://lore.kernel.org/20250411-fix_fs-v2-1-5d3395c102e4@quicinc.com Reviewed-by: Jan Kara Signed-off-by: Christian Brauner

bcachefs: add support for true/false & yes/no in bool-type options

2024-12-21T06:36:17Z

Here is the patch which uses existing constant table: Currently, when using bcachefs-tools to set options, bool-type options can only accept 1 or 0. Add support for accepting true/false and yes/no for these options. Signed-off-by: Integral Signed-off-by: Kent Overstreet Acked-by: David Howells

fs: add helper to use mount option as path or fd

2024-10-14T14:31:15Z

Allow filesystems to use a mount option either as a file or path. Link: https://lore.kernel.org/r/20241014-work-overlayfs-v3-1-32b3fed1286e@kernel.org Reviewed-by: Amir Goldstein Signed-off-by: Christian Brauner

fs_parse: add uid & gid option option parsing helpers

2024-07-02T04:20:49Z

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 Link: https://lore.kernel.org/r/de859d0a-feb9-473d-a5e2-c195a3d47abb@redhat.com Signed-off-by: Christian Brauner

fs_parser: move fsparam_string_empty() helper into header

2024-03-26T08:01:18Z

Since both ext4 and overlayfs define the same macro to specify string parameters that may allow empty values, define it in an header file so that this helper can be shared. Signed-off-by: Luis Henriques (SUSE) Link: https://lore.kernel.org/r/20240312104757.27333-1-luis.henriques@linux.dev Signed-off-by: Christian Brauner

ext4: journal_path mount options should follow links

2022-12-01T15:46:54Z

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 Reviewed-by: Darrick J. Wong Link: https://lore.kernel.org/r/20221004135803.32283-1-lczerner@redhat.com Signed-off-by: Theodore Ts'o Cc: stable@kernel.org

fs_parse: allow parameter value to be empty

2021-12-09T19:09:36Z

Allow parameter value to be empty by specifying fs_param_can_be_empty flag. Signed-off-by: Lukas Czerner Cc: Al Viro Reviewed-by: Carlos Maiolino Link: https://lore.kernel.org/r/20211027141857.33657-2-lczerner@redhat.com Signed-off-by: Theodore Ts'o

fs: fix cast in fsparam_u32hex() macro

2020-09-16T23:12:27Z

Signed-off-by: Alexey Dobriyan Signed-off-by: Al Viro

turn fs_param_is_... into functions

2020-02-07T19:48:38Z

Signed-off-by: Al Viro