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fs: make aio plug 

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;
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);