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qemu/block
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Kevin Wolf bb9aaecaf1 block/io: Quiesce parents between drained_begin/end 
So far, bdrv_parent_drained_begin/end() was called for the duration of
the actual bdrv_drain() at the beginning of a drained section, but we
really should keep parents quiesced until the end of the drained
section.

This does not actually change behaviour at this point because the only
user of the .drained_begin/end BdrvChildRole callback is I/O throttling,
which already doesn't send any new requests after flushing its queue in
.drained_begin. The patch merely removes a trap for future users.

Reported-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
2016-05-19 16:45:30 +02:00
..
accounting.c block: Clean up includes 2016-01-20 13:36:23 +01:00
archipelago.c util: move declarations out of qemu-common.h 2016-03-22 22:20:17 +01:00
backup.c block: Remove bdrv_(set_)enable_write_cache() 2016-03-30 12:16:03 +02:00
blkdebug.c util: move declarations out of qemu-common.h 2016-03-22 22:20:17 +01:00
blkreplay.c replay: introduce block devices record/replay 2016-03-30 12:15:57 +02:00
blkverify.c util: move declarations out of qemu-common.h 2016-03-22 22:20:17 +01:00
block-backend.c block: Drain throttling queue with BdrvChild callback 2016-05-19 16:45:30 +02:00
bochs.c bochs: Implement .bdrv_co_preadv() interface 2016-05-12 15:22:08 +02:00
cloop.c cloop: Implement .bdrv_co_preadv() interface 2016-05-12 15:22:08 +02:00
commit.c include/qemu/osdep.h: Don't include qapi/error.h 2016-03-22 22:20:15 +01:00
crypto.c Block layer patches 2016-05-12 16:33:40 +01:00
curl.c block: always compile-check debug prints 2016-05-12 15:22:08 +02:00
dirty-bitmap.c include/qemu/osdep.h: Don't include qapi/error.h 2016-03-22 22:20:15 +01:00
dmg.c dmg: Implement .bdrv_co_preadv() interface 2016-05-12 15:22:08 +02:00
gluster.c block/gluster: prevent data loss after i/o error 2016-04-19 12:24:59 -04:00
io.c block/io: Quiesce parents between drained_begin/end 2016-05-19 16:45:30 +02:00
iscsi.c block: Honor BDRV_REQ_FUA during write_zeroes 2016-05-12 15:22:09 +02:00
linux-aio.c linux-aio: make it more type safe 2016-05-12 15:22:07 +02:00
Makefile.objs replay: introduce block devices record/replay 2016-03-30 12:15:57 +02:00
mirror.c mirror: Workaround for unexpected iohandler events during completion 2016-04-22 16:44:09 +02:00
nbd-client.c nbd: Simplify client FUA handling 2016-05-12 15:22:09 +02:00
nbd-client.h nbd: Simplify client FUA handling 2016-05-12 15:22:09 +02:00
nbd.c nbd: Simplify client FUA handling 2016-05-12 15:22:09 +02:00
nfs.c block/nfs: add missing #include "qemu/cutils.h" 2016-03-30 16:50:39 -04:00
null.c block/null-{co,aio}: Implement get_block_status() 2016-03-30 12:16:04 +02:00
parallels.c block: Switch blk_*write_zeroes() to byte interface 2016-05-12 15:22:08 +02:00
qapi.c block: Move I/O throttling configuration functions to BlockBackend 2016-05-19 16:45:30 +02:00
qcow.c block: Allow BDRV_REQ_FUA through blk_pwrite() 2016-05-12 15:22:08 +02:00
qcow2-cache.c block: Clean up includes 2016-01-20 13:36:23 +01:00
qcow2-cluster.c include/qemu/osdep.h: Don't include qapi/error.h 2016-03-22 22:20:15 +01:00
qcow2-refcount.c include/qemu/osdep.h: Don't include qapi/error.h 2016-03-22 22:20:15 +01:00
qcow2-snapshot.c util: move declarations out of qemu-common.h 2016-03-22 22:20:17 +01:00
qcow2.c block: Drop superfluous invalidating bs->file from drivers 2016-05-12 15:22:09 +02:00
qcow2.h qcow2: Add function for refcount order amendment 2015-12-18 14:34:43 +01:00
qed-check.c block: Clean up includes 2016-01-20 13:36:23 +01:00
qed-cluster.c block: Clean up includes 2016-01-20 13:36:23 +01:00
qed-gencb.c block: Clean up includes 2016-01-20 13:36:23 +01:00
qed-l2-cache.c block: Clean up includes 2016-01-20 13:36:23 +01:00
qed-table.c block: Clean up includes 2016-01-20 13:36:23 +01:00
qed.c block: Drop superfluous invalidating bs->file from drivers 2016-05-12 15:22:09 +02:00
qed.h util: move declarations out of qemu-common.h 2016-03-22 22:20:17 +01:00
quorum.c quorum: implement bdrv_add_child() and bdrv_del_child() 2016-05-12 15:33:23 +02:00
raw-aio.h linux-aio: make it more type safe 2016-05-12 15:22:07 +02:00
raw-posix.c block: Honor BDRV_REQ_FUA during write_zeroes 2016-05-12 15:22:09 +02:00
raw-win32.c util: move declarations out of qemu-common.h 2016-03-22 22:20:17 +01:00
raw_bsd.c block: Honor BDRV_REQ_FUA during write_zeroes 2016-05-12 15:22:09 +02:00
rbd.c util: move declarations out of qemu-common.h 2016-03-22 22:20:17 +01:00
sheepdog.c block: Allow BDRV_REQ_FUA through blk_pwrite() 2016-05-12 15:22:08 +02:00
snapshot.c include/qemu/osdep.h: Don't include qapi/error.h 2016-03-22 22:20:15 +01:00
ssh.c include/qemu/osdep.h: Don't include qapi/error.h 2016-03-22 22:20:15 +01:00
stream.c -----BEGIN PGP SIGNATURE----- 2016-03-29 19:54:49 +01:00
throttle-groups.c block: Move I/O throttling configuration functions to BlockBackend 2016-05-19 16:45:30 +02:00
vdi.c block: Allow BDRV_REQ_FUA through blk_pwrite() 2016-05-12 15:22:08 +02:00
vhdx-endian.c block: Clean up includes 2016-01-20 13:36:23 +01:00
vhdx-log.c include/qemu/osdep.h: Don't include qapi/error.h 2016-03-22 22:20:15 +01:00
vhdx.c block: Allow BDRV_REQ_FUA through blk_pwrite() 2016-05-12 15:22:08 +02:00
vhdx.h block: vhdx - update PAYLOAD_BLOCK_UNMAPPED value to match 1.00 spec 2014-12-12 15:42:22 +00:00
vmdk.c block: Allow BDRV_REQ_FUA through blk_pwrite() 2016-05-12 15:22:08 +02:00
vpc.c block: Allow BDRV_REQ_FUA through blk_pwrite() 2016-05-12 15:22:08 +02:00
vvfat.c vvfat: Implement .bdrv_co_preadv/pwritev interfaces 2016-05-12 15:22:08 +02:00
win32-aio.c block: Clean up includes 2016-01-20 13:36:23 +01:00
write-threshold.c block: Clean up includes 2016-01-20 13:36:23 +01:00