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block: move blk_exp_close_all() to qemu_cleanup()

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Move blk_exp_close_all() from bdrv_close() to qemu_cleanup(), before
bdrv_drain_all_begin().

Export drivers may have coroutines yielding at some point in the block
layer, so we need to shut them down before draining the block layer,
as otherwise they may get stuck blk_wait_while_drained().

RHBZ: https://bugzilla.redhat.com/show_bug.cgi?id=1900505
Signed-off-by: Sergio Lopez <slp@redhat.com>
Message-Id: <20210201125032.44713-3-slp@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Sergio Lopez 2021-02-01 13:50:32 +01:00 • committed by Kevin Wolf
parent 722d8e73d6
commit 1895b977f9
4 changed files with 11 additions and 1 deletions
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1
storage-daemon/qemu-storage-daemon.c
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@ -314,6 +314,7 @@ int main(int argc, char *argv[])
main_loop_wait(false);
}
blk_exp_close_all();
bdrv_drain_all_begin();
bdrv_close_all();