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UPSTREAM: mmc: core: update mmc.c upstream version
[firefly-linux-kernel-4.4.55.git]
/
drivers
/
md
/
dm-thin-metadata.c
diff --git
a/drivers/md/dm-thin-metadata.c
b/drivers/md/dm-thin-metadata.c
index c219a053c7f66d1ebae80a19b005af38914dbe8c..911ada64336407fe15f8b5d6fc2df026cf1649cc 100644
(file)
--- a/
drivers/md/dm-thin-metadata.c
+++ b/
drivers/md/dm-thin-metadata.c
@@
-1943,5
+1943,8
@@
bool dm_pool_metadata_needs_check(struct dm_pool_metadata *pmd)
void dm_pool_issue_prefetches(struct dm_pool_metadata *pmd)
{
- dm_tm_issue_prefetches(pmd->tm);
+ down_read(&pmd->root_lock);
+ if (!pmd->fail_io)
+ dm_tm_issue_prefetches(pmd->tm);
+ up_read(&pmd->root_lock);
}