MD: no sync IO while suspended

Jonathan Brassow · neilbrown · commit 68866e425be2 · 2011-06-08T15:10:08.000+10:00
Disallow resync I/O while the RAID array is suspended.

Recovery, resync, and metadata I/O should not be allowed while a device is
suspended.

Signed-off-by: Jonathan Brassow &lt;jbrassow@redhat.com&gt;
Signed-off-by: NeilBrown &lt;neilb@suse.de&gt;
diff --git a/drivers/md/md.c b/drivers/md/md.c
@@ -7045,7 +7045,6 @@ void md_do_sync(mddev_t *mddev)
 }
 EXPORT_SYMBOL_GPL(md_do_sync);
 
-
 static int remove_and_add_spares(mddev_t *mddev)
 {
 	mdk_rdev_t *rdev;
@@ -7157,6 +7156,9 @@ static void reap_sync_thread(mddev_t *mddev)
  */
 void md_check_recovery(mddev_t *mddev)
 {
+	if (mddev->suspended)
+		return;
+
 	if (mddev->bitmap)
 		bitmap_daemon_work(mddev);
 

Original file line number	Diff line number	Diff line change
`@@ -7045,7 +7045,6 @@ void md_do_sync(mddev_t *mddev)`
`7045`	`7045`	`}`
`7046`	`7046`	`EXPORT_SYMBOL_GPL(md_do_sync);`
`7047`	`7047`
`7048`		`-`
`7049`	`7048`	`static int remove_and_add_spares(mddev_t *mddev)`
`7050`	`7049`	`{`
`7051`	`7050`	`mdk_rdev_t *rdev;`
`@@ -7157,6 +7156,9 @@ static void reap_sync_thread(mddev_t *mddev)`
`7157`	`7156`	`*/`
`7158`	`7157`	`void md_check_recovery(mddev_t *mddev)`
`7159`	`7158`	`{`
	`7159`	`+ if (mddev->suspended)`
	`7160`	`+ return;`
	`7161`	`+`
`7160`	`7162`	`if (mddev->bitmap)`
`7161`	`7163`	`bitmap_daemon_work(mddev);`
`7162`	`7164`