Stefan Hajnoczi 341e0b5658 throttle-groups: forget timer and schedule next TGM on detach ...

tg->any_timer_armed[] must be cleared when detaching pending timers from
the AioContext.  Failure to do so leads to hung I/O because it looks
like there are still timers pending when in fact they have been removed.

Other ThrottleGroupMembers might have requests pending too so it's
necessary to schedule the next TGM so it can set a timer.

This patch fixes hung I/O when QEMU is launched with drives that are in
the same throttling group:

  (guest)$ dd if=/dev/zero of=/dev/vdb oflag=direct bs=512 &
  (guest)$ dd if=/dev/zero of=/dev/vdc oflag=direct bs=512 &
  (qemu) stop
  (qemu) cont
  ...I/O is stuck...

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20171116112150.27607-1-stefanha@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

2017-11-16 14:12:57 +00:00

..

accounting.c

block: make accounting thread-safe

2017-06-16 07:55:00 +08:00

backup.c

dirty-bitmap: Change bdrv_dirty_iter_next() to report byte offset

2017-10-06 16:28:58 +02:00

blkdebug.c

block: Align block status requests

2017-10-26 14:45:57 +02:00

blkreplay.c

block: change variable names in BlockDriverState

2017-06-26 14:54:46 +02:00

blkverify.c

blkverify: Catch bs->exact_filename overflow

2017-06-26 14:54:46 +02:00

block-backend.c

block: Leave valid throttle timers when removing a BDS from a backend

2017-11-13 15:43:49 +00:00

bochs.c

block: do not set BDS read_only if copy_on_read enabled

2017-04-24 15:09:33 -04:00

cloop.c

block: do not set BDS read_only if copy_on_read enabled

2017-04-24 15:09:33 -04:00

commit.c

commit: Remove overlay_bs

2017-10-06 16:28:58 +02:00

crypto.c

block: support passthrough of BDRV_REQ_FUA in crypto driver

2017-10-06 16:30:47 +02:00

crypto.h

qcow: convert QCow to use QCryptoBlock for encryption

2017-07-11 17:44:56 +02:00

curl.c

curl: do not do aio_poll when waiting for a free CURLState

2017-05-16 10:34:50 -04:00

dirty-bitmap.c

dirty-bitmap: Convert internal hbitmap size/granularity

2017-10-06 16:28:58 +02:00

dmg-bz2.c

dmg: Move libbz2 code to dmg-bz2.so

2016-10-07 14:14:06 +02:00

dmg.c

dmg: use DIV_ROUND_UP

2017-08-31 12:29:07 +02:00

dmg.h

dmg: Move libbz2 code to dmg-bz2.so

2016-10-07 14:14:06 +02:00

file-posix.c

file-posix: Clear out first sector in hdev_create

2017-09-26 14:46:23 +02:00

file-win32.c

qapi: Change data type of the FOO_lookup generated for enum FOO

2017-09-04 13:09:13 +02:00

gluster.c

qapi: Change data type of the FOO_lookup generated for enum FOO

2017-09-04 13:09:13 +02:00

io.c

block: Reduce bdrv_aligned_preadv() rounding

2017-10-26 14:45:57 +02:00

iscsi-opts.c

block/iscsi: statically link qemu_iscsi_opts

2017-01-27 18:07:58 +01:00

iscsi.c

scsi: move block/scsi.h to include/scsi/constants.h

2017-09-19 14:09:31 +02:00

linux-aio.c

block: explicitly acquire aiocontext in aio callbacks that need it

2017-02-21 11:39:39 +00:00

Makefile.objs

block: add throttle block filter driver

2017-09-06 10:12:02 +02:00

mirror.c

block: Convert bdrv_get_block_status_above() to bytes

2017-10-26 14:45:57 +02:00

nbd-client.c

nbd-client: Stricter enforcing of structured reply spec

2017-11-09 10:22:26 -06:00

nbd-client.h

nbd: Minimal structured read for client

2017-10-30 21:48:41 +01:00

nbd.c

nbd: Implement NBD_INFO_BLOCK_SIZE on client

2017-07-14 12:04:42 +02:00

nfs.c

qapi: Mechanically convert FOO_lookup[...] to FOO_str(...)

2017-09-04 13:09:13 +02:00

null.c

block/null: Remove 'filename' option

2017-08-08 15:19:16 +02:00

parallels.c

block/parallels: add migration blocker

2017-11-14 18:06:26 +01:00

qapi.c

block: move ThrottleGroup membership to ThrottleGroupMember

2017-09-05 16:47:51 +02:00

qcow2-bitmap.c

qcow2: Switch store_bitmap_data() to byte-based iteration

2017-10-06 16:28:58 +02:00

qcow2-cache.c

qcow2: add qcow2_cache_discard

2017-09-26 15:00:32 +02:00

qcow2-cluster.c

qcow2: Prevent allocating L2 tables at offset 0

2017-11-14 18:06:25 +01:00

qcow2-refcount.c

qcow2: Prevent allocating compressed clusters at offset 0

2017-11-14 18:06:25 +01:00

qcow2-snapshot.c

qcow2: Discard/zero clusters by byte count

2017-05-11 14:28:07 +02:00

qcow2.c

qcow2: Assert that the crypto header does not overlap other metadata

2017-11-14 18:06:25 +01:00

qcow2.h

qcow2: truncate the tail of the image file after shrinking the image

2017-10-06 16:30:48 +02:00

qcow.c

block: convert qcrypto_block_encrypt|decrypt to take bytes offset

2017-10-06 16:30:47 +02:00

qed-check.c

qed: Use DIV_ROUND_UP

2016-06-07 18:19:24 +03:00

qed-cluster.c

qed: protect table cache with CoMutex

2017-07-17 11:34:11 +08:00

qed-l2-cache.c

qed: protect table cache with CoMutex

2017-07-17 11:34:11 +08:00

qed-table.c

qed: protect table cache with CoMutex

2017-07-17 11:34:11 +08:00

qed.c

block: rename bdrv_co_drain to bdrv_co_drain_begin

2017-10-13 12:38:41 +01:00

qed.h

qed: protect table cache with CoMutex

2017-07-17 11:34:11 +08:00

quorum.c

qapi: Change data type of the FOO_lookup generated for enum FOO

2017-09-04 13:09:13 +02:00

raw-format.c

block: remove unused bdrv_media_changed

2017-09-04 18:31:13 +02:00

rbd.c

qapi: Mechanically convert FOO_lookup[...] to FOO_str(...)

2017-09-04 13:09:13 +02:00

replication.c

block: Add reopen_queue to bdrv_child_perm()

2017-09-26 14:46:23 +02:00

sheepdog.c

Merge QEMU I/O 2017/09/05 v2

2017-09-05 14:14:33 +01:00

snapshot.c

block/snapshot: dirty all dirty bitmaps on snapshot-switch

2017-11-14 18:06:25 +01:00

ssh.c

util: remove the obsolete non-blocking connect

2017-09-05 13:21:58 +01:00

stream.c

block: Make bdrv_is_allocated_above() byte-based

2017-07-10 13:18:07 +02:00

throttle-groups.c

throttle-groups: forget timer and schedule next TGM on detach

2017-11-16 14:12:57 +00:00

throttle.c

block/throttle.c: add bdrv_co_drain_begin/end callbacks

2017-10-13 12:38:41 +01:00

trace-events

block: Make bdrv_round_to_clusters() signature more useful

2017-10-26 14:45:57 +02:00

vdi.c

vdi: make it thread-safe

2017-07-17 11:28:15 +08:00

vhdx-endian.c

vhdx: Use QEMU UUID API

2016-09-23 11:42:52 +08:00

vhdx-log.c

vhdx: use QEMU_ALIGN_DOWN

2017-08-31 12:29:07 +02:00

vhdx.c

block/vhdx.c: Don't blindly update the header

2017-11-14 18:06:25 +01:00

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 error handling/reporting of vmdk_check

2017-08-08 15:19:16 +02:00

vpc.c

vpc: use DIV_ROUND_UP

2017-08-31 12:29:07 +02:00

vvfat.c

block: Add reopen_queue to bdrv_child_perm()

2017-09-26 14:46:23 +02:00

vxhs.c

qobject: Use simpler QDict/QList scalar insertion macros

2017-05-09 09:13:51 +02:00

win32-aio.c

block: explicitly acquire aiocontext in aio callbacks that need it

2017-02-21 11:39:39 +00:00

write-threshold.c

block: use bdrv_add_before_write_notifier

2016-10-07 13:34:07 +02:00