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md: don't update metadata when stopping a read-only array.

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read-only arrays should stay that way as much as possible.
Updating the metadata - which could be triggered by a re-add
while assembling the array metadata - should be avoided.

Signed-off-by: NeilBrown <neilb@suse.de>
This commit is contained in:
NeilBrown 2013-04-24 11:42:42 +10:00
parent 7ceb17e87b
commit b6d428c669
1 changed files with 2 additions and 1 deletions
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3
drivers/md/md.c
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@ -5293,7 +5293,8 @@ static void __md_stop_writes(struct mddev *mddev)
bitmap_flush(mddev);
md_super_wait(mddev);
if (!mddev->in_sync || mddev->flags) {
if (mddev->ro == 0 &&
(!mddev->in_sync || mddev->flags)) {
/* mark array as shutdown cleanly */
mddev->in_sync = 1;
md_update_sb(mddev, 1);