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| author | Amir Goldstein <amir73il@gmail.com> | 2021-06-19 12:26:16 +0300 |
|---|---|---|
| committer | Miklos Szeredi <mszeredi@redhat.com> | 2021-08-17 11:47:43 +0200 |
| commit | 4f911138c8da94bcff84f1d093d28e378703c43f (patch) | |
| tree | 5e60f8b85f273a6599ad0b52165b84af91189a2b /fs/stat.c | |
| parent | 7c60610d476766e128cc4284bb6349732cbd6606 (diff) | |
| download | lwn-4f911138c8da94bcff84f1d093d28e378703c43f.tar.gz lwn-4f911138c8da94bcff84f1d093d28e378703c43f.zip | |
fs: add generic helper for filling statx attribute flags
The immutable and append-only properties on an inode are published on
the inode's i_flags and enforced by the VFS.
Create a helper to fill the corresponding STATX_ATTR_ flags in the kstat
structure from the inode's i_flags.
Only orange was converted to use this helper.
Other filesystems could use it in the future.
Suggested-by: Miklos Szeredi <miklos@szeredi.hu>
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Diffstat (limited to 'fs/stat.c')
| -rw-r--r-- | fs/stat.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/fs/stat.c b/fs/stat.c index 1fa38bdec1a6..28d2020ba1f4 100644 --- a/fs/stat.c +++ b/fs/stat.c @@ -60,6 +60,24 @@ void generic_fillattr(struct user_namespace *mnt_userns, struct inode *inode, EXPORT_SYMBOL(generic_fillattr); /** + * generic_fill_statx_attr - Fill in the statx attributes from the inode flags + * @inode: Inode to use as the source + * @stat: Where to fill in the attribute flags + * + * Fill in the STATX_ATTR_* flags in the kstat structure for properties of the + * inode that are published on i_flags and enforced by the VFS. + */ +void generic_fill_statx_attr(struct inode *inode, struct kstat *stat) +{ + if (inode->i_flags & S_IMMUTABLE) + stat->attributes |= STATX_ATTR_IMMUTABLE; + if (inode->i_flags & S_APPEND) + stat->attributes |= STATX_ATTR_APPEND; + stat->attributes_mask |= KSTAT_ATTR_VFS_FLAGS; +} +EXPORT_SYMBOL(generic_fill_statx_attr); + +/** * vfs_getattr_nosec - getattr without security checks * @path: file to get attributes from * @stat: structure to return attributes in |