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block: use drained section in bdrv_close

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bdrv_close is used when ejecting a medium.  Use a drained section to ensure
that all I/O goes to either the old medium or the bitbucket.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 1450867706-19860-2-git-send-email-pbonzini@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
This commit is contained in:
Paolo Bonzini 2015-12-23 11:48:24 +01:00 committed by Max Reitz
parent 7467d94cc4
commit fc27291daf
1 changed files with 3 additions and 1 deletions
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4
block.c
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@ -2154,9 +2154,10 @@ void bdrv_close(BlockDriverState *bs)
bdrv_io_limits_disable(bs); bdrv_io_limits_disable(bs);
} }
bdrv_drain(bs); /* complete I/O */ bdrv_drained_begin(bs); /* complete I/O */
bdrv_flush(bs); bdrv_flush(bs);
bdrv_drain(bs); /* in case flush left pending I/O */ bdrv_drain(bs); /* in case flush left pending I/O */
notifier_list_notify(&bs->close_notifiers, bs); notifier_list_notify(&bs->close_notifiers, bs);
if (bs->blk) { if (bs->blk) {
@ -2206,6 +2207,7 @@ void bdrv_close(BlockDriverState *bs)
g_free(ban); g_free(ban);
} }
QLIST_INIT(&bs->aio_notifiers); QLIST_INIT(&bs->aio_notifiers);
bdrv_drained_end(bs);
} }
void bdrv_close_all(void) void bdrv_close_all(void)