diff options
Diffstat (limited to 'fs/overlayfs/util.c')
| -rw-r--r-- | fs/overlayfs/util.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/fs/overlayfs/util.c b/fs/overlayfs/util.c index b9b239fa5cfd..51ca8bd16009 100644 --- a/fs/overlayfs/util.c +++ b/fs/overlayfs/util.c @@ -329,6 +329,19 @@ void ovl_copy_up_end(struct dentry *dentry) mutex_unlock(&OVL_I(d_inode(dentry))->lock); } +bool ovl_check_origin_xattr(struct dentry *dentry) +{ + int res; + + res = vfs_getxattr(dentry, OVL_XATTR_ORIGIN, NULL, 0); + + /* Zero size value means "copied up but origin unknown" */ + if (res >= 0) + return true; + + return false; +} + bool ovl_check_dir_xattr(struct dentry *dentry, const char *name) { int res; |