2011-10-07 17:41:18

by Anna Schumaker

[permalink] [raw]
Subject: [PATCH] VFS: Add "device" tag to /proc/self/mountstats

nfsiostat was failing to find mounted filesystems on kernels after
2.6.38 because of changes to show_vfsstat() by commit
c7f404b40a3665d9f4e9a927cc5c1ee0479ed8f9. This patch adds back the
"device" tag before the nfs server entry so scripts can parse the
mountstats file correctly.

Signed-off-by: Bryan Schumaker <[email protected]>
CC: [email protected] [>=2.6.39]
---
fs/namespace.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/fs/namespace.c b/fs/namespace.c
index 22bfe82..1429114 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -1109,6 +1109,7 @@ static int show_vfsstat(struct seq_file *m, void *v)

/* device */
if (mnt->mnt_sb->s_op->show_devname) {
+ seq_puts(m, "device ");
err = mnt->mnt_sb->s_op->show_devname(m, mnt);
} else {
if (mnt->mnt_devname) {
--
1.7.6.3