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authorLinus Torvalds <torvalds@linux-foundation.org>2014-06-02 17:04:37 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2014-06-02 17:04:37 -0700
commitca755175f245b91f72cfa474aaa8acd9c26996f4 (patch)
tree794fa903df9164f15b03949c5a44b5a886c1e704 /drivers/md
parent3b8d2676d15d6b2326757adb66b70a9cd6650373 (diff)
parent2ac295a544dcae9299cba13ce250419117ae7fd1 (diff)
Merge tag 'md/3.15-fixes' of git://neil.brown.name/md
Pull two md bugfixes from Neil Brown: "Two md bugfixes for possible corruption when restarting reshape If a raid5/6 reshape is restarted (After stopping and re-assembling the array) and the array is marked read-only (or read-auto), then the reshape will appear to complete immediately, without actually moving anything around. This can result in corruption. There are two patches which do much the same thing in different places. They are separate because one is an older bug and so can be applied to more -stable kernels" * tag 'md/3.15-fixes' of git://neil.brown.name/md: md: always set MD_RECOVERY_INTR when interrupting a reshape thread. md: always set MD_RECOVERY_INTR when aborting a reshape or other "resync".
Diffstat (limited to 'drivers/md')
-rw-r--r--drivers/md/md.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 237b7e0ddc7..2382cfc9bb3 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -7381,8 +7381,10 @@ void md_do_sync(struct md_thread *thread)
/* just incase thread restarts... */
if (test_bit(MD_RECOVERY_DONE, &mddev->recovery))
return;
- if (mddev->ro) /* never try to sync a read-only array */
+ if (mddev->ro) {/* never try to sync a read-only array */
+ set_bit(MD_RECOVERY_INTR, &mddev->recovery);
return;
+ }
if (test_bit(MD_RECOVERY_SYNC, &mddev->recovery)) {
if (test_bit(MD_RECOVERY_CHECK, &mddev->recovery)) {
@@ -7824,6 +7826,7 @@ void md_check_recovery(struct mddev *mddev)
/* There is no thread, but we need to call
* ->spare_active and clear saved_raid_disk
*/
+ set_bit(MD_RECOVERY_INTR, &mddev->recovery);
md_reap_sync_thread(mddev);
clear_bit(MD_RECOVERY_NEEDED, &mddev->recovery);
goto unlock;