fs: make aio plug

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/fs/aio.c b/fs/aio.c
index c5ea494ea9e2..1476bed1c5fb 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -1660,6 +1660,7 @@ long do_io_submit(aio_context_t ctx_id, long nr,
         long ret = 0;
         int i;
         struct hlist_head batch_hash[AIO_BATCH_HASH_SIZE] = { { 0, }, };
+        struct blk_plug plug;
 
         if (unlikely(nr < 0))
                 return -EINVAL;
@@ -1676,6 +1677,8 @@ long do_io_submit(aio_context_t ctx_id, long nr,
                 return -EINVAL;
         }
 
+        blk_start_plug(&plug);
+
         /*
          * AKPM: should this return a partial result if some of the IOs were
          * successfully submitted?
@@ -1698,6 +1701,7 @@ long do_io_submit(aio_context_t ctx_id, long nr,
                 if (ret)
                         break;
         }
+        blk_finish_plug(&plug);
         aio_batch_free(batch_hash);
 
         put_ioctx(ctx);