From: NeilBrown <neilb@suse.com>
Date: Fri, 25 Aug 2017 07:34:41 +0000 (+1000)
Subject: NFS: remove special-case revalidate in nfs_opendir()
X-Git-Tag: v4.15-rc1~60^2~58
X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=1fea73ac92f628538032ce746f7dd5d6f8dfcc32;p=linux-2.6-block.git

NFS: remove special-case revalidate in nfs_opendir()

Commit f5a73672d181 ("NFS: allow close-to-open cache semantics to
apply to root of NFS filesystem") added a call to
__nfs_revalidate_inode() to nfs_opendir to as the lookup
process wouldn't reliable do this.

Subsequent commit a3fbbde70a0c ("VFS: we need to set LOOKUP_JUMPED
on mountpoint crossing") make this unnecessary.  So remove the
unnecessary code.

Signed-off-by: NeilBrown <neilb@suse.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
---

diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index c583093a066b..15104f719170 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -118,13 +118,6 @@ nfs_opendir(struct inode *inode, struct file *filp)
 		goto out;
 	}
 	filp->private_data = ctx;
-	if (filp->f_path.dentry == filp->f_path.mnt->mnt_root) {
-		/* This is a mountpoint, so d_revalidate will never
-		 * have been called, so we need to refresh the
-		 * inode (for close-open consistency) ourselves.
-		 */
-		__nfs_revalidate_inode(NFS_SERVER(inode), inode);
-	}
 out:
 	put_rpccred(cred);
 	return res;