diff options
Diffstat (limited to 'fs/overlayfs/overlayfs.h')
| -rw-r--r-- | fs/overlayfs/overlayfs.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/fs/overlayfs/overlayfs.h b/fs/overlayfs/overlayfs.h index e81fea86139e..e6f3670146ed 100644 --- a/fs/overlayfs/overlayfs.h +++ b/fs/overlayfs/overlayfs.h @@ -48,6 +48,12 @@ enum ovl_entry_flag { OVL_E_CONNECTED, }; +enum { + OVL_XINO_OFF, + OVL_XINO_AUTO, + OVL_XINO_ON, +}; + /* * The tuple (fh,uuid) is a universal unique identifier for a copy up origin, * where: @@ -301,6 +307,16 @@ static inline bool ovl_is_impuredir(struct dentry *dentry) return ovl_check_dir_xattr(dentry, OVL_XATTR_IMPURE); } +/* + * With xino=auto, we do best effort to keep all inodes on same st_dev and + * d_ino consistent with st_ino. + * With xino=on, we do the same effort but we warn if we failed. + */ +static inline bool ovl_xino_warn(struct super_block *sb) +{ + return OVL_FS(sb)->config.xino == OVL_XINO_ON; +} + /* All layers on same fs? */ static inline bool ovl_same_fs(struct super_block *sb) { |