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| author | Theodore Ts'o <tytso@mit.edu> | 2021-04-17 23:03:50 -0400 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2021-04-17 23:03:50 -0400 |
| commit | 5afa7e8b70d65819245fece61a65fd753b4aae33 (patch) | |
| tree | daf9ece96b42491f96e6f7a9157cd0779acd01c3 /fs/stat.c | |
| parent | 4811d9929cdae4238baf5b2522247bd2f9fa7b50 (diff) | |
| download | linux-5afa7e8b70d65819245fece61a65fd753b4aae33.tar.gz | |
fs: fix reporting supported extra file attributes for statx()
statx(2) notes that any attribute that is not indicated as supported
by stx_attributes_mask has no usable value. Commits 801e523796004
("fs: move generic stat response attr handling to vfs_getattr_nosec")
and 712b2698e4c02 ("fs/stat: Define DAX statx attribute") sets
STATX_ATTR_AUTOMOUNT and STATX_ATTR_DAX, respectively, without setting
stx_attributes_mask, which can cause xfstests generic/532 to fail.
Fix this in the same way as commit 1b9598c8fb99 ("xfs: fix reporting
supported extra file attributes for statx()")
Fixes: 801e523796004 ("fs: move generic stat response attr handling to vfs_getattr_nosec")
Fixes: 712b2698e4c02 ("fs/stat: Define DAX statx attribute")
Cc: stable@kernel.org
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'fs/stat.c')
| -rw-r--r-- | fs/stat.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/fs/stat.c b/fs/stat.c index fbc171d038aa..1fa38bdec1a6 100644 --- a/fs/stat.c +++ b/fs/stat.c @@ -86,12 +86,20 @@ int vfs_getattr_nosec(const struct path *path, struct kstat *stat, /* SB_NOATIME means filesystem supplies dummy atime value */ if (inode->i_sb->s_flags & SB_NOATIME) stat->result_mask &= ~STATX_ATIME; + + /* + * Note: If you add another clause to set an attribute flag, please + * update attributes_mask below. + */ if (IS_AUTOMOUNT(inode)) stat->attributes |= STATX_ATTR_AUTOMOUNT; if (IS_DAX(inode)) stat->attributes |= STATX_ATTR_DAX; + stat->attributes_mask |= (STATX_ATTR_AUTOMOUNT | + STATX_ATTR_DAX); + mnt_userns = mnt_user_ns(path->mnt); if (inode->i_op->getattr) return inode->i_op->getattr(mnt_userns, path, stat, |