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authorKevin Wolf <kwolf@redhat.com>2021-07-08 13:47:06 +0200
committerKevin Wolf <kwolf@redhat.com>2021-07-09 13:19:11 +0200
commit6cf42ca2f9782f0335abf3e6b611fbced40cd099 (patch)
tree406d3b9860c22689578a6525d6e7805a6231a2aa /hw/pci-host/prep.c
parentab5b522879e2a7880418cbd29340675e5427572f (diff)
downloadfocaccia-qemu-6cf42ca2f9782f0335abf3e6b611fbced40cd099.tar.gz
focaccia-qemu-6cf42ca2f9782f0335abf3e6b611fbced40cd099.zip
block: Acquire AioContexts during bdrv_reopen_multiple()
As the BlockReopenQueue can contain nodes in multiple AioContexts, only
one of which may be locked when AIO_WAIT_WHILE() can be called, we can't
let the caller lock the right contexts. Instead, individually lock the
AioContext of a single node when iterating the queue.

Reintroduce bdrv_reopen() as a wrapper for reopening a single node that
drains the node and temporarily drops the AioContext lock for
bdrv_reopen_multiple().

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20210708114709.206487-4-kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'hw/pci-host/prep.c')
0 files changed, 0 insertions, 0 deletions