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fs: make aio plug

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Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
This commit is contained in:
Shaohua Li 2010-07-01 07:55:01 +02:00 committed by Jens Axboe
parent 2ed1a6bcf9
commit 9f5b942546
1 changed files with 4 additions and 0 deletions
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4
fs/aio.c
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@ -1660,6 +1660,7 @@ long do_io_submit(aio_context_t ctx_id, long nr,
long ret = 0; long ret = 0;
int i; int i;
struct hlist_head batch_hash[AIO_BATCH_HASH_SIZE] = { { 0, }, }; struct hlist_head batch_hash[AIO_BATCH_HASH_SIZE] = { { 0, }, };
struct blk_plug plug;
if (unlikely(nr < 0)) if (unlikely(nr < 0))
return -EINVAL; return -EINVAL;
@ -1676,6 +1677,8 @@ long do_io_submit(aio_context_t ctx_id, long nr,
return -EINVAL; return -EINVAL;
} }
blk_start_plug(&plug);
/* /*
* AKPM: should this return a partial result if some of the IOs were * AKPM: should this return a partial result if some of the IOs were
* successfully submitted? * successfully submitted?
@ -1698,6 +1701,7 @@ long do_io_submit(aio_context_t ctx_id, long nr,
if (ret) if (ret)
break; break;
} }
blk_finish_plug(&plug);
aio_batch_free(batch_hash); aio_batch_free(batch_hash);
put_ioctx(ctx); put_ioctx(ctx);