diff options
Diffstat (limited to 'fs/xfs/libxfs/xfs_parent.c')
| -rw-r--r-- | fs/xfs/libxfs/xfs_parent.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/fs/xfs/libxfs/xfs_parent.c b/fs/xfs/libxfs/xfs_parent.c index 504de1ef3387..1e53df5f8332 100644 --- a/fs/xfs/libxfs/xfs_parent.c +++ b/fs/xfs/libxfs/xfs_parent.c @@ -291,3 +291,25 @@ xfs_parent_from_attr( *parent_gen = be32_to_cpu(rec->p_gen); return 0; } + +/* + * Look up a parent pointer record (@parent_name -> @pptr) of @ip. + * + * Caller must hold at least ILOCK_SHARED. The scratchpad need not be + * initialized. + * + * Returns 0 if the pointer is found, -ENOATTR if there is no match, or a + * negative errno. + */ +int +xfs_parent_lookup( + struct xfs_trans *tp, + struct xfs_inode *ip, + const struct xfs_name *parent_name, + struct xfs_parent_rec *pptr, + struct xfs_da_args *scratch) +{ + memset(scratch, 0, sizeof(struct xfs_da_args)); + xfs_parent_da_args_init(scratch, tp, pptr, ip, ip->i_ino, parent_name); + return xfs_attr_get_ilocked(scratch); +} |