From eca450b7c23f804597b87085b2a05bfc5b3ccb8b Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Tue, 22 Apr 2008 17:33:52 +1000 Subject: [PATCH] [XFS] simplify xfs_lookup Opencode xfs-kill-xfs_dir_lookup_int here, which gets rid of a lock roundtrip, and lots of stack space. Also kill the di_mode == 0 check that has been done in xfs_iget for a few years now. SGI-PV: 976035 SGI-Modid: xfs-linux-melb:xfs-kern:30901a Signed-off-by: Christoph Hellwig Signed-off-by: Lachlan McIlroy --- fs/xfs/xfs_vnodeops.c | 22 +++++++++++++++------- 1 file changed, 15 insertions(+), 7 deletions(-) diff --git a/fs/xfs/xfs_vnodeops.c b/fs/xfs/xfs_vnodeops.c index 7093d749589b..637fc1a2bb44 100644 --- a/fs/xfs/xfs_vnodeops.c +++ b/fs/xfs/xfs_vnodeops.c @@ -1636,8 +1636,7 @@ xfs_lookup( struct xfs_name *name, xfs_inode_t **ipp) { - xfs_inode_t *ip; - xfs_ino_t e_inum; + xfs_ino_t inum; int error; uint lock_mode; @@ -1647,12 +1646,21 @@ xfs_lookup( return XFS_ERROR(EIO); lock_mode = xfs_ilock_map_shared(dp); - error = xfs_dir_lookup_int(dp, lock_mode, name, &e_inum, &ip); - if (!error) { - *ipp = ip; - xfs_itrace_ref(ip); - } + error = xfs_dir_lookup(NULL, dp, name, &inum); xfs_iunlock_map_shared(dp, lock_mode); + + if (error) + goto out; + + error = xfs_iget(dp->i_mount, NULL, inum, 0, 0, ipp, 0); + if (error) + goto out; + + xfs_itrace_ref(*ipp); + return 0; + + out: + *ipp = NULL; return error; }