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authorChuck Lever <cel@netapp.com>2006-03-20 13:44:15 -0500
committerTrond Myklebust <Trond.Myklebust@netapp.com>2006-03-20 13:44:15 -0500
commit67ec9f46b889bfb1ab0a4e307d53929d5f0692bf (patch)
treefe9cb38a7ead5bf4894b22bdc10af5d513695781 /fs/nfs
parent006ea73e5fa82915d0ac7a3f15ee7c688433236d (diff)
downloadop-kernel-dev-67ec9f46b889bfb1ab0a4e307d53929d5f0692bf.zip
op-kernel-dev-67ec9f46b889bfb1ab0a4e307d53929d5f0692bf.tar.gz
NFS: report how long an NFS file system has been mounted
Add a field in nfs_server to record a timestamp when a mount succeeds. Report the number of seconds the file system has been mounted via nfs_show_stats(). Test plan: Mount an NFS file system, watch the mountstats reports and compare with clock time. Signed-off-by: Chuck Lever <cel@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs')
-rw-r--r--fs/nfs/inode.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index 8ee7411..1b2d782 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -299,6 +299,9 @@ nfs_sb_init(struct super_block *sb, rpc_authflavor_t authflavor)
goto out_no_root;
}
+ /* mount time stamp, in seconds */
+ server->mount_time = jiffies;
+
/* Get some general file system info */
if (server->namelen == 0 &&
server->rpc_ops->pathconf(server, &server->fh, &pathinfo) >= 0)
@@ -674,6 +677,8 @@ static int nfs_show_stats(struct seq_file *m, struct vfsmount *mnt)
seq_puts(m, mnt->mnt_sb->s_flags & MS_NODIRATIME ? ",nodiratime" : "");
nfs_show_mount_options(m, nfss, 1);
+ seq_printf(m, "\n\tage:\t%lu", (jiffies - nfss->mount_time) / HZ);
+
seq_printf(m, "\n\tcaps:\t");
seq_printf(m, "caps=0x%x", nfss->caps);
seq_printf(m, ",wtmult=%d", nfss->wtmult);
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