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5ac724184c
qemu/block
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Alberto Garcia 5ac724184c throttle: Check for pending requests in throttle_group_unregister_bs() 
throttle_group_unregister_bs() removes a BlockDriverState from its
throttling group and destroys the timers. This means that there must
be no pending throttled requests at that point (because it would be
impossible to complete them), so the caller has to drain them first.

At the moment throttle_group_unregister_bs() is only called from
bdrv_io_limits_disable(), which already takes care of draining the
requests, so there's nothing to worry about, but this patch makes
this invariant explicit in the documentation and adds the relevant
assertions.

Signed-off-by: Alberto Garcia <berto@igalia.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2015-11-11 16:25:47 +01:00
..
accounting.c block: Remove wr_highest_sector from BlockAcctStats 2015-10-23 18:18:23 +02:00
archipelago.c block: remove superfluous '\n' around error_report/error_setg 2015-03-10 08:15:33 +03:00
backup.c block: Move I/O status and error actions into BB 2015-10-23 18:18:23 +02:00
blkdebug.c blkdebug: Don't confuse image as backing file 2015-10-16 15:35:48 +02:00
blkverify.c blkverify: Fix BDS leak in .bdrv_open error path 2015-10-16 15:34:30 +02:00
block-backend.c block: Inquire tray state before tray-moved events 2015-11-11 16:22:47 +01:00
bochs.c block: Convert bs->file to BdrvChild 2015-10-16 15:34:29 +02:00
cloop.c block: Convert bs->file to BdrvChild 2015-10-16 15:34:29 +02:00
commit.c commit: reopen overlay_bs before base 2015-11-11 16:25:47 +01:00
curl.c aio: Add "is_external" flag for event handlers 2015-10-23 18:18:23 +02:00
dmg.c block: Convert bs->file to BdrvChild 2015-10-16 15:34:29 +02:00
gluster.c block: don't convert file size to sector size 2014-09-12 15:43:06 +02:00
io.c block: Consider all child nodes in bdrv_requests_pending() 2015-10-29 17:59:27 +00:00
iscsi.c iscsi: Translate scsi sense into error code 2015-11-05 14:42:19 +01:00
linux-aio.c aio: Add "is_external" flag for event handlers 2015-10-23 18:18:23 +02:00
Makefile.objs block: convert quorum blockdrv to use crypto APIs 2015-07-08 13:11:01 +02:00
mirror.c block: Move I/O status and error actions into BB 2015-10-23 18:18:23 +02:00
nbd-client.c aio: Add "is_external" flag for event handlers 2015-10-23 18:18:23 +02:00
nbd-client.h nbd: Set block size to BDRV_SECTOR_SIZE 2015-03-18 12:07:01 +01:00
nbd.c block: Convert to new qapi union layout 2015-11-02 08:30:27 +01:00
nfs.c aio: Add "is_external" flag for event handlers 2015-10-23 18:18:23 +02:00
null.c block/null: Support reopen 2015-04-28 15:36:09 +02:00
parallels.c block: Convert bs->file to BdrvChild 2015-10-16 15:34:29 +02:00
qapi.c block: Prepare for NULL BDS 2015-10-23 18:18:23 +02:00
qcow2-cache.c block: Convert bs->file to BdrvChild 2015-10-16 15:34:29 +02:00
qcow2-cluster.c block: Convert bs->backing_hd to BdrvChild 2015-10-16 15:34:29 +02:00
qcow2-refcount.c qcow2: avoid misaligned 64bit bswap 2015-11-11 16:25:47 +01:00
qcow2-snapshot.c block: Convert bs->file to BdrvChild 2015-10-16 15:34:29 +02:00
qcow2.c block: Convert to new qapi union layout 2015-11-02 08:30:27 +01:00
qcow2.h coroutine: move into libqemuutil.a library 2015-10-20 14:59:04 +01:00
qcow.c block: Convert bs->backing_hd to BdrvChild 2015-10-16 15:34:29 +02:00
qed-check.c block: Use g_new() & friends to avoid multiplying sizes 2014-08-20 11:51:28 +02:00
qed-cluster.c
qed-gencb.c block: Rename BlockDriverCompletionFunc to BlockCompletionFunc 2014-10-20 13:41:27 +02:00
qed-l2-cache.c qed: do not evict in-use L2 table cache entries 2012-03-12 15:14:06 +01:00
qed-table.c block: Convert bs->file to BdrvChild 2015-10-16 15:34:29 +02:00
qed.c block: Remove bdrv_swap() 2015-10-16 15:34:30 +02:00
qed.h qed: Really remove unused field QEDAIOCB.finished 2015-02-06 17:24:21 +01:00
quorum.c quorum: Convert to BdrvChild 2015-10-16 15:34:29 +02:00
raw_bsd.c block/raw_bsd: Drop raw_is_inserted() 2015-10-23 18:18:23 +02:00
raw-aio.h linux-aio: drop return code from laio_io_unplug and ioq_submit 2014-12-12 16:57:55 +00:00
raw-posix.c block: Make bdrv_is_inserted() return a bool 2015-10-23 18:18:22 +02:00
raw-win32.c block: switch from g_slice allocator to malloc 2015-10-12 11:17:45 +01:00
rbd.c rbd: fix ceph settings precedence 2015-07-14 17:15:23 +02:00
sheepdog.c aio: Add "is_external" flag for event handlers 2015-10-23 18:18:23 +02:00
snapshot.c block: Convert bs->file to BdrvChild 2015-10-16 15:34:29 +02:00
ssh.c aio: Add "is_external" flag for event handlers 2015-10-23 18:18:23 +02:00
stream.c block: Move I/O status and error actions into BB 2015-10-23 18:18:23 +02:00
throttle-groups.c throttle: Check for pending requests in throttle_group_unregister_bs() 2015-11-11 16:25:47 +01:00
vdi.c coroutine: move into libqemuutil.a library 2015-10-20 14:59:04 +01:00
vhdx-endian.c block: VHDX endian fixes 2014-08-15 15:07:14 +02:00
vhdx-log.c block: Convert bs->file to BdrvChild 2015-10-16 15:34:29 +02:00
vhdx.c block: Convert bs->file to BdrvChild 2015-10-16 15:34:29 +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: Convert to new qapi union layout 2015-11-02 08:30:27 +01:00
vpc.c block: Convert bs->file to BdrvChild 2015-10-16 15:34:29 +02:00
vvfat.c block: Remove bdrv_swap() 2015-10-16 15:34:30 +02:00
win32-aio.c aio: Add "is_external" flag for event handlers 2015-10-23 18:18:23 +02:00
write-threshold.c coroutine: move into libqemuutil.a library 2015-10-20 14:59:04 +01:00