This is a bug about array cannot be opened again after 'md_set_readonly',
because the MD_CLOSING bit is still waiting for clear.
MD_CLOSING should only be set for a short period or time to avoid certain
races. After the operation that set it completes, it should be cleared.
Reviewed-by: NeilBrown <neilb@xxxxxxxx>
Cc: Guoqing Jiang <gqjiang@xxxxxxxx>
Signed-off-by: Zhilong Liu <zlliu@xxxxxxxx>
---
drivers/md/md.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/md/md.c b/drivers/md/md.c
index f6ae1d6..7f2db7c 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -5588,6 +5588,7 @@ static int md_set_readonly(struct mddev *mddev, struct block_device *bdev)
int err = 0;
int did_freeze = 0;
+ test_and_clear_bit(MD_CLOSING, &mddev->flags);
if (!test_bit(MD_RECOVERY_FROZEN, &mddev->recovery)) {
did_freeze = 1;
set_bit(MD_RECOVERY_FROZEN, &mddev->recovery);
--
2.6.6
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