Alberto Garcia c0778f6693 block: Add bdrv_drain_all_{begin,end}() ... bdrv_drain_all() doesn't allow the caller to do anything after all pending requests have been completed but before block jobs are resumed. This patch splits bdrv_drain_all() into _begin() and _end() for that purpose. It also adds aio_{disable,enable}_external() calls to disable external clients in the meantime. An important restriction of this split is that no new block jobs or BlockDriverStates can be created between the bdrv_drain_all_begin() and bdrv_drain_all_end() calls. This is not a concern now because we'll only be using this in bdrv_reopen_multiple(), but it must be dealt with if we ever have other uses cases in the future. Signed-off-by: Alberto Garcia <berto@igalia.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>		2016-10-31 16:51:14 +01:00
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accounting.c
archipelago.c
backup.c
blkdebug.c
blkreplay.c
blkverify.c
block-backend.c
bochs.c
cloop.c
commit.c
crypto.c
curl.c
dirty-bitmap.c
dmg-bz2.c
dmg.c
dmg.h
gluster.c
io.c
iscsi.c
linux-aio.c
Makefile.objs
mirror.c
nbd-client.c
nbd-client.h
nbd.c
nfs.c
null.c
parallels.c
qapi.c
qcow2-cache.c
qcow2-cluster.c
qcow2-refcount.c
qcow2-snapshot.c
qcow2.c
qcow2.h
qcow.c
qed-check.c
qed-cluster.c
qed-gencb.c
qed-l2-cache.c
qed-table.c
qed.c
qed.h
quorum.c
raw_bsd.c
raw-posix.c
raw-win32.c
rbd.c
replication.c
sheepdog.c
snapshot.c
ssh.c
stream.c
throttle-groups.c
trace-events
vdi.c
vhdx-endian.c
vhdx-log.c
vhdx.c
vhdx.h
vmdk.c
vpc.c
vvfat.c
win32-aio.c
write-threshold.c