From: Patrick J. LoPresti <lopresti@gmail.com>
Date: Tue, 10 Aug 2010 21:28:01 +0000 (-0400)
Subject: nfs: Add "lookupcache" to displayed mount options
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=9b00c64318cc337846a7a08a5678f5f19aeff188;p=sagit-ice-cold%2Fkernel_xiaomi_msm8998.git

nfs: Add "lookupcache" to displayed mount options

Running "cat /proc/mounts" fails to display the "lookupcache" option.
This oversight cost me a bunch of wasted time recently.

The following simple patch fixes it.

CC: stable <stable@kernel.org>
Signed-off-by: Patrick LoPresti <lopresti@gmail.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---

diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index f1ae39f6cb02..3d0d63c00304 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -655,6 +655,13 @@ static void nfs_show_mount_options(struct seq_file *m, struct nfs_server *nfss,
 
 	if (nfss->options & NFS_OPTION_FSCACHE)
 		seq_printf(m, ",fsc");
+
+	if (nfss->flags & NFS_MOUNT_LOOKUP_CACHE_NONEG) {
+		if (nfss->flags & NFS_MOUNT_LOOKUP_CACHE_NONE)
+			seq_printf(m, ",lookupcache=none");
+		else
+			seq_printf(m, ",lookupcache=pos");
+	}
 }
 
 /*