[PATCH 21/25] block/fbatch: no lru_add_drain_all() in invalidate_bdev()

[Hugh Dickins]

invalidate_bdev() has no good reason to lru_add_drain_all(), now that the
per-cpu fbatch references are gone; but keep doing invalidate_bh_lrus().

Signed-off-by: Hugh Dickins <hughd@xxxxxxxxxx>
---
 block/bdev.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/block/bdev.c b/block/bdev.c
index cd8323083740..853545b29b7f 100644
--- a/block/bdev.c
+++ b/block/bdev.c
@@ -97,7 +97,6 @@ void invalidate_bdev(struct block_device *bdev)
 
 	if (mapping->nrpages) {
 		invalidate_bh_lrus();
-		lru_add_drain_all();	/* make sure all lru add caches are flushed */
 		invalidate_mapping_pages(mapping, 0, -1);
 	}
 }
-- 
2.51.0