This ensures that we don't have to look up the dentry again after we return
the delegation if we know that the directory didn't change.
Signed-off-by: Trond Myklebust <Trond.Myklebust@xxxxxxxxxx>
---
fs/nfs/dir.c | 6 ++++--
1 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index 121b533..ff167aa 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -799,6 +799,9 @@ static int nfs_lookup_revalidate(struct dentry * dentry, struct nameidata *nd)
goto out_bad;
}
+ if (nfs_have_delegation(inode, FMODE_READ))
+ goto out_set_verifier;
+
/* Force a full look up iff the parent directory has changed */
if (!nfs_is_exclusive_create(dir, nd) && nfs_check_verifier(dir, dentry)) {
if (nfs_lookup_verify_inode(inode, nd))
@@ -817,6 +820,7 @@ static int nfs_lookup_revalidate(struct dentry * dentry, struct nameidata *nd)
if ((error = nfs_refresh_inode(inode, &fattr)) != 0)
goto out_bad;
+out_set_verifier:
nfs_set_verifier(dentry, nfs_save_change_attribute(dir));
out_valid:
dput(parent);
@@ -1084,8 +1088,6 @@ out:
no_open_dput:
dput(parent);
no_open:
- if (inode != NULL && nfs_have_delegation(inode, FMODE_READ))
- return 1;
return nfs_lookup_revalidate(dentry, nd);
}
#endif /* CONFIG_NFSV4 */
--
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