diff options
Diffstat (limited to 'fs/overlayfs/copy_up.c')
| -rw-r--r-- | fs/overlayfs/copy_up.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/fs/overlayfs/copy_up.c b/fs/overlayfs/copy_up.c index 87289b9a152c..f9f51cce3c18 100644 --- a/fs/overlayfs/copy_up.c +++ b/fs/overlayfs/copy_up.c @@ -233,12 +233,13 @@ int ovl_set_attr(struct dentry *upperdentry, struct kstat *stat) return err; } -static struct ovl_fh *ovl_encode_fh(struct dentry *lower, uuid_t *uuid) +static struct ovl_fh *ovl_encode_fh(struct dentry *lower) { struct ovl_fh *fh; int fh_type, fh_len, dwords; void *buf; int buflen = MAX_HANDLE_SZ; + uuid_t *uuid = &lower->d_sb->s_uuid; buf = kmalloc(buflen, GFP_TEMPORARY); if (!buf) @@ -283,7 +284,6 @@ out: static int ovl_set_origin(struct dentry *dentry, struct dentry *lower, struct dentry *upper) { - struct super_block *sb = lower->d_sb; const struct ovl_fh *fh = NULL; int err; @@ -292,9 +292,8 @@ static int ovl_set_origin(struct dentry *dentry, struct dentry *lower, * so we can use the overlay.origin xattr to distignuish between a copy * up and a pure upper inode. */ - if (sb->s_export_op && sb->s_export_op->fh_to_dentry && - !uuid_is_null(&sb->s_uuid)) { - fh = ovl_encode_fh(lower, &sb->s_uuid); + if (ovl_can_decode_fh(lower->d_sb)) { + fh = ovl_encode_fh(lower); if (IS_ERR(fh)) return PTR_ERR(fh); } |