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block: Use bdrv_drain to replace uncessary bdrv_drain_all

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There callers work on a single BlockDriverState subtree, where using
bdrv_drain() is more accurate.

Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Fam Zheng
2015-05-29 18:53:14 +08:00
committed by Stefan Hajnoczi
parent c2e0dbbfd7
commit 53ec73e264
3 changed files with 5 additions and 5 deletions
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6
block.c
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@ -1841,9 +1841,9 @@ void bdrv_close(BlockDriverState *bs)
if (bs->job) {
block_job_cancel_sync(bs->job);
}
bdrv_drain_all(); /* complete I/O */
bdrv_drain(bs); /* complete I/O */
bdrv_flush(bs);
bdrv_drain_all(); /* in case flush left pending I/O */
bdrv_drain(bs); /* in case flush left pending I/O */
notifier_list_notify(&bs->close_notifiers, bs);
if (bs->drv) {
@ -3906,7 +3906,7 @@ void bdrv_attach_aio_context(BlockDriverState *bs,
void bdrv_set_aio_context(BlockDriverState *bs, AioContext *new_context)
{
bdrv_drain_all(); /* ensure there are no in-flight requests */
bdrv_drain(bs); /* ensure there are no in-flight requests */
bdrv_detach_aio_context(bs);