This series uses mutexes or atomic operations around core block layer
operations. The remaining parts include:
I've removed the failing assertion in bdrv_aligned_pwritev in order to
test block migration.
Paolo
v1->v2: add missing comment for 'wakeup' member [Fam]
rewrite throttle-groups part [Stefan]
rename ThrottleState CoMutex [Fam]
minor stats64 changes [Fam, Roman, me]
fixed bdrv_flush [Fam, me]
dropped request spinlock optimization for now [Stefan]
avoid global dirty bitmap mutex [Fam]
avoid introducing unlocked bdrv_get_dirty API [Stefan]
replaced spinlock with mutex for accounting [Stefan]
Paolo Bonzini (18):
block: access copy_on_read with atomic ops
block: access quiesce_counter with atomic ops
block: access io_limits_disabled with atomic ops
block: access serialising_in_flight with atomic ops
block: access wakeup with atomic ops
block: access io_plugged with atomic ops
throttle-groups: only start one coroutine from drained_begin
throttle-groups: do not use qemu_co_enter_next
throttle-groups: protect throttled requests with a CoMutex
util: add stats64 module
block: use Stat64 for wr_highest_offset
block: access write_gen with atomics
block: protect tracked_requests and flush_queue with reqs_lock
block: introduce dirty_bitmap_mutex
migration/block: reset dirty bitmap before reading
block: protect modification of dirty bitmaps with a mutex
block: introduce block_account_one_io
block: make accounting thread-safe
block.c | 9 +-
block/accounting.c | 64 ++++++++------
block/block-backend.c | 5 +-
block/dirty-bitmap.c | 112 ++++++++++++++++++++++--
block/io.c | 51 ++++++-----
block/mirror.c | 14 ++-
block/nfs.c | 4 +-
block/qapi.c | 2 +-
block/sheepdog.c | 3 +-
block/throttle-groups.c | 91 ++++++++++++++-----
blockdev.c | 46 ++--------
include/block/accounting.h | 8 +-
include/block/block.h | 5 +-
include/block/block_int.h | 61 ++++++++-----
include/block/dirty-bitmap.h | 25 ++++--
include/qemu/stats64.h | 193 +++++++++++++++++++++++++++++++++++++++++
include/sysemu/block-backend.h | 10 +--
migration/block.c | 17 ++--
util/Makefile.objs | 1 +
util/stats64.c | 136 +++++++++++++++++++++++++++++
20 files changed, 679 insertions(+), 178 deletions(-)
create mode 100644 include/qemu/stats64.h
create mode 100644 util/stats64.c
--
2.12.2
