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Block patches for 2.9-rc1 

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Merge remote-tracking branch 'mreitz/tags/pull-block-2017-03-17' into queue-block

Block patches for 2.9-rc1

# gpg: Signature made Fri Mar 17 12:59:20 2017 CET
# gpg:                using RSA key 0xF407DB0061D5CF40
# gpg: Good signature from "Max Reitz <mreitz@redhat.com>"
# Primary key fingerprint: 91BE B60A 30DB 3E88 57D1  1829 F407 DB00 61D5 CF40

* mreitz/tags/pull-block-2017-03-17:
  block: quiesce AioContext when detaching from it

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Kevin Wolf 2017-03-17 13:03:44 +01:00
parent b7a745dc33 c2b6428d38
commit 11f0f5e553
1 changed files with 7 additions and 0 deletions
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7
block.c
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@ -4350,8 +4350,15 @@ void bdrv_attach_aio_context(BlockDriverState *bs,
void bdrv_set_aio_context(BlockDriverState *bs, AioContext *new_context)
{
AioContext *ctx;
bdrv_drain(bs); /* ensure there are no in-flight requests */
ctx = bdrv_get_aio_context(bs);
while (aio_poll(ctx, false)) {
/* wait for all bottom halves to execute */
}
bdrv_detach_aio_context(bs);
/* This function executes in the old AioContext so acquire the new one in