diff options
| author | Lukas Czerner <lczerner@redhat.com> | 2022-10-04 16:58:03 +0300 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2022-12-01 18:46:54 +0300 |
| commit | e3ea75ee651daf5e434afbfdb7dbf75e200ea1f6 (patch) | |
| tree | 05196c38534cf3949eb0e172f98907dd233b9bcc | |
| parent | 56d0d0b9289dae041becc7ee6bd966a00dd610e0 (diff) | |
| download | linux-e3ea75ee651daf5e434afbfdb7dbf75e200ea1f6.tar.xz | |
ext4: journal_path mount options should follow links
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
| -rw-r--r-- | Documentation/filesystems/mount_api.rst | 1 | ||||
| -rw-r--r-- | fs/ext4/super.c | 2 | ||||
| -rw-r--r-- | fs/fs_parser.c | 3 | ||||
| -rw-r--r-- | include/linux/fs_parser.h | 1 |
4 files changed, 5 insertions, 2 deletions
diff --git a/Documentation/filesystems/mount_api.rst b/Documentation/filesystems/mount_api.rst index eb358a00be27..1d16787a00e9 100644 --- a/Documentation/filesystems/mount_api.rst +++ b/Documentation/filesystems/mount_api.rst @@ -814,6 +814,7 @@ process the parameters it is given. int fs_lookup_param(struct fs_context *fc, struct fs_parameter *value, bool want_bdev, + unsigned int flags, struct path *_path); This takes a parameter that carries a string or filename type and attempts diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 4749b303f2a9..0f71542cf453 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -2247,7 +2247,7 @@ static int ext4_parse_param(struct fs_context *fc, struct fs_parameter *param) return -EINVAL; } - error = fs_lookup_param(fc, param, 1, &path); + error = fs_lookup_param(fc, param, 1, LOOKUP_FOLLOW, &path); if (error) { ext4_msg(NULL, KERN_ERR, "error: could not find " "journal device path"); diff --git a/fs/fs_parser.c b/fs/fs_parser.c index ed40ce5742fd..edb3712dcfa5 100644 --- a/fs/fs_parser.c +++ b/fs/fs_parser.c @@ -138,15 +138,16 @@ EXPORT_SYMBOL(__fs_parse); * @fc: The filesystem context to log errors through. * @param: The parameter. * @want_bdev: T if want a blockdev + * @flags: Pathwalk flags passed to filename_lookup() * @_path: The result of the lookup */ int fs_lookup_param(struct fs_context *fc, struct fs_parameter *param, bool want_bdev, + unsigned int flags, struct path *_path) { struct filename *f; - unsigned int flags = 0; bool put_f; int ret; diff --git a/include/linux/fs_parser.h b/include/linux/fs_parser.h index f103c91139d4..01542c4b87a2 100644 --- a/include/linux/fs_parser.h +++ b/include/linux/fs_parser.h @@ -76,6 +76,7 @@ static inline int fs_parse(struct fs_context *fc, extern int fs_lookup_param(struct fs_context *fc, struct fs_parameter *param, bool want_bdev, + unsigned int flags, struct path *_path); extern int lookup_constant(const struct constant_table tbl[], const char *name, int not_found); |