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VFS: Add "device" tag to /proc/self/mountstats

PATCH In review Bryan Schumaker 2 participants 2 messages Aug 29, 2011 – Sep 21, 2011

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Bryan Schumaker

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#0 lore raw

PATCH 1/1 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]>
---
 fs/namespace.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
fs/namespace.c +1 -0
index 22bfe82..1429114 100644
@@ -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) {
Signature · 5 lines
1.7.6
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#1 lore raw

What is the status of this patch? I hope it didn't get forgotten with the kernel.org confusion...

- Bryan

Quoted 24 lines · Bryan Schumaker

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]>
---
 fs/namespace.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
fs/namespace.c +1 -0
index 22bfe82..1429114 100644
@@ -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) {