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Denis V. Lunev cf56a3c632 mirror: fix request throttling in drive-mirror 
There are 2 deficiencies here:
- mirror_iteration could start several requests inside. Thus we could
  simply have more in_flight requests than MAX_IN_FLIGHT.
- keeping this in mind throttling in mirror_run which is checking
  s->in_flight == MAX_IN_FLIGHT is wrong.

The patch adds the check and throttling into mirror_iteration and fixes
the check in mirror_run() to be sure.

Signed-off-by: Denis V. Lunev <den@openvz.org>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: 1466598927-5990-1-git-send-email-den@openvz.org
CC: Jeff Cody <jcody@redhat.com>
CC: Kevin Wolf <kwolf@redhat.com>
CC: Max Reitz <mreitz@redhat.com>
Signed-off-by: Jeff Cody <jcody@redhat.com>
(cherry picked from commit e648dc95c28fbca12e67be26a1fc4b9a0676c3fe)
 		2016-07-19 17:03:44 -04:00
..
Makefile.objs block: Move bdrv_commit() to block/commit.c 2016-07-05 16:46:27 +02:00
accounting.c block: Clean up includes 2016-01-20 13:36:23 +01:00
archipelago.c coccinelle: Remove unnecessary variables for function return value 2016-06-20 16:38:13 +02:00
backup.c coroutine: move entry argument to qemu_coroutine_create 2016-07-13 13:26:02 +02:00
blkdebug.c coroutine: move entry argument to qemu_coroutine_create 2016-07-13 13:26:02 +02:00
blkreplay.c coroutine: move entry argument to qemu_coroutine_create 2016-07-13 13:26:02 +02:00
blkverify.c block: Convert bdrv_aio_writev() to BdrvChild 2016-07-05 16:46:26 +02:00
block-backend.c block/qdev: Allow configuring rerror/werror with qdev properties 2016-07-13 13:32:27 +02:00
bochs.c block: Convert bdrv_co_preadv/pwritev to BdrvChild 2016-07-05 16:46:27 +02:00
cloop.c block: Convert bdrv_pread(v) to BdrvChild 2016-07-05 16:46:27 +02:00
commit.c Improve block job rate limiting for small bandwidth values 2016-07-13 13:41:38 +02:00
crypto.c QAPI patches for 2016-07-06 2016-07-06 11:38:09 +01:00
curl.c block: always compile-check debug prints 2016-05-12 15:22:08 +02:00
dirty-bitmap.c dirty-bitmap: operate with int64_t amount 2016-07-19 16:54:46 -04:00
dmg.c block: Convert bdrv_pread(v) to BdrvChild 2016-07-05 16:46:27 +02:00
gluster.c coroutine: move entry argument to qemu_coroutine_create 2016-07-13 13:26:02 +02:00
io.c block: ignore flush requests when storage is clean 2016-07-18 18:19:01 -04:00
iscsi.c block/iscsi: allow caching of the allocation map 2016-07-19 08:34:53 +02:00
linux-aio.c linux-aio: prevent submitting more than MAX_EVENTS 2016-07-18 15:10:52 +01:00
mirror.c mirror: fix request throttling in drive-mirror 2016-07-19 17:03:44 -04:00
nbd-client.c coroutine: move entry argument to qemu_coroutine_create 2016-07-13 13:26:02 +02:00
nbd-client.h nbd: Simplify client FUA handling 2016-05-12 15:22:09 +02:00
nbd.c block: Switch discard length bounds to byte-based 2016-07-05 16:46:25 +02:00
nfs.c coroutine: move entry argument to qemu_coroutine_create 2016-07-13 13:26:02 +02:00
null.c block/null: Implement bdrv_refresh_filename() 2016-06-16 15:20:37 +02:00
parallels.c block: Convert bdrv_pwrite_zeroes() to BdrvChild 2016-07-05 16:46:27 +02:00
qapi.c qapi: Add new visit_complete() function 2016-07-06 10:52:04 +02:00
qcow.c coroutine: move entry argument to qemu_coroutine_create 2016-07-13 13:26:02 +02:00
qcow2-cache.c block: Convert bdrv_pwrite(v/_sync) to BdrvChild 2016-07-05 16:46:27 +02:00
qcow2-cluster.c qcow2: Fix qcow2_get_cluster_offset() 2016-07-13 13:41:38 +02:00
qcow2-refcount.c block/qcow2: Don't use cpu_to_*w() 2016-07-05 16:54:04 +02:00
qcow2-snapshot.c block: Convert bdrv_pwrite(v/_sync) to BdrvChild 2016-07-05 16:46:27 +02:00
qcow2.c coroutine: move entry argument to qemu_coroutine_create 2016-07-13 13:26:02 +02:00
qcow2.h qcow2: Implement .bdrv_co_pwritev() 2016-06-16 15:19:55 +02:00
qed-check.c qed: Use DIV_ROUND_UP 2016-06-07 18:19:24 +03:00
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: Convert bdrv_aio_writev() to BdrvChild 2016-07-05 16:46:26 +02:00
qed.c coroutine: move entry argument to qemu_coroutine_create 2016-07-13 13:26:02 +02:00
qed.h util: move declarations out of qemu-common.h 2016-03-22 22:20:17 +01:00
quorum.c block: Convert bdrv_aio_writev() to BdrvChild 2016-07-05 16:46:26 +02:00
raw-posix.c linux-aio: share one LinuxAioState within an AioContext 2016-07-18 15:09:31 +01:00
raw-win32.c linux-aio: share one LinuxAioState within an AioContext 2016-07-18 15:09:31 +01:00
raw_bsd.c block: Convert bdrv_co_preadv/pwritev to BdrvChild 2016-07-05 16:46:27 +02:00
rbd.c coccinelle: Remove unnecessary variables for function return value 2016-06-20 16:38:13 +02:00
sheepdog.c coroutine: move entry argument to qemu_coroutine_create 2016-07-13 13:26:02 +02:00
snapshot.c error: Remove NULL checks on error_propagate() calls 2016-06-20 16:38:13 +02:00
ssh.c coroutine: move entry argument to qemu_coroutine_create 2016-07-13 13:26:02 +02:00
stream.c Improve block job rate limiting for small bandwidth values 2016-07-13 13:41:38 +02:00
throttle-groups.c block: Move I/O throttling configuration functions to BlockBackend 2016-05-19 16:45:30 +02:00
trace-events trace: split out trace events for block/ directory 2016-06-20 17:22:14 +01:00
vdi.c block: Convert bdrv_co_preadv/pwritev to BdrvChild 2016-07-05 16:46:27 +02:00
vhdx-endian.c qemu-common: stop including qemu/bswap.h from qemu-common.h 2016-05-19 16:42:28 +02:00
vhdx-log.c block: Convert bdrv_pwrite(v/_sync) to BdrvChild 2016-07-05 16:46:27 +02:00
vhdx.c block: Convert bdrv_pwrite(v/_sync) to BdrvChild 2016-07-05 16:46:27 +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 vmdk: fix metadata write regression 2016-07-13 13:41:39 +02:00
vpc.c block: Convert bdrv_co_preadv/pwritev to BdrvChild 2016-07-05 16:46:27 +02:00
vvfat.c vvfat: Fix qcow write target driver specification 2016-07-13 13:41:39 +02:00
win32-aio.c linux-aio: share one LinuxAioState within an AioContext 2016-07-18 15:09:31 +01:00
write-threshold.c block: Clean up includes 2016-01-20 13:36:23 +01:00