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Subject[PATCH 10/10] fs: make aio plug
Date
From: Shaohua Li <shaohua.li@intel.com>

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
---
fs/aio.c | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/fs/aio.c b/fs/aio.c
index c5ea494..1476bed 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);
--
1.7.3.2.146.gca209


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