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md: Add judgement bb->unacked_exist in function md_ack_all_badblocks().
author
majianpeng
<majianpeng@gmail.com>
Mon, 19 Mar 2012 01:46:42 +0000
(12:46 +1100)
committer
NeilBrown
<neilb@suse.de>
Mon, 19 Mar 2012 01:46:42 +0000
(12:46 +1100)
If there are no unacked bad blocks, then there is no point searching
for them to acknowledge them.
Signed-off-by: majianpeng <majianpeng@gmail.com>
Signed-off-by: NeilBrown <neilb@suse.de>
drivers/md/md.c
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diff --git
a/drivers/md/md.c
b/drivers/md/md.c
index
21a90ef
..
b572e1e
100644
(file)
--- a/
drivers/md/md.c
+++ b/
drivers/md/md.c
@@
-8021,7
+8021,7
@@
void md_ack_all_badblocks(struct badblocks *bb)
return;
write_seqlock_irq(&bb->lock);
- if (bb->changed == 0) {
+ if (bb->changed == 0
&& bb->unacked_exist
) {
u64 *p = bb->page;
int i;
for (i = 0; i < bb->count ; i++) {