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Commit e44b6a5a authored by Joe Thornber's avatar Joe Thornber Committed by Mike Snitzer
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dm cache: move wake_waker() from free_migrations() to where it is needed 



This stops spurious wake ups from calls to prealloc_free_structs().

Signed-off-by: default avatarJoe Thornber <ejt@redhat.com>
Signed-off-by: default avatarMike Snitzer <snitzer@redhat.com>
parent 8c747fd0

drivers/md/dm-cache-target.c

+2 −1
Original line number Diff line number Diff line
@@ -424,7 +424,6 @@ static void free_migration(struct dm_cache_migration *mg) 
		wake_up(&cache->migration_wait);



	mempool_free(mg, cache->migration_pool);

	wake_worker(cache);

}



static int prealloc_data_structs(struct cache *cache, struct prealloc *p)
@@ -1125,6 +1124,7 @@ static void free_io_migration(struct dm_cache_migration *mg) 
{

	dec_io_migrations(mg->cache);

	free_migration(mg);

	wake_worker(mg->cache);

}



static void migration_failure(struct dm_cache_migration *mg)
@@ -1361,6 +1361,7 @@ static void issue_discard(struct dm_cache_migration *mg) 
	bio_endio(bio, 0);

	cell_defer(mg->cache, mg->new_ocell, false);

	free_migration(mg);

	wake_worker(mg->cache);

}



static void issue_copy_or_discard(struct dm_cache_migration *mg)