diff options
Diffstat (limited to 'block/block-backend.c')
| -rw-r--r-- | block/block-backend.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/block/block-backend.c b/block/block-backend.c index 7d7f3697d1..a2bbae90b1 100644 --- a/block/block-backend.c +++ b/block/block-backend.c @@ -216,8 +216,10 @@ BlockBackend *blk_new(uint64_t perm, uint64_t shared_perm) blk->shared_perm = shared_perm; blk_set_enable_write_cache(blk, true); + qemu_co_mutex_init(&blk->public.throttled_reqs_lock); qemu_co_queue_init(&blk->public.throttled_reqs[0]); qemu_co_queue_init(&blk->public.throttled_reqs[1]); + block_acct_init(&blk->stats); notifier_list_init(&blk->remove_bs_notifiers); notifier_list_init(&blk->insert_bs_notifiers); @@ -1953,7 +1955,7 @@ static void blk_root_drained_begin(BdrvChild *child) /* Note that blk->root may not be accessible here yet if we are just * attaching to a BlockDriverState that is drained. Use child instead. */ - if (blk->public.io_limits_disabled++ == 0) { + if (atomic_fetch_inc(&blk->public.io_limits_disabled) == 0) { throttle_group_restart_blk(blk); } } @@ -1964,7 +1966,7 @@ static void blk_root_drained_end(BdrvChild *child) assert(blk->quiesce_counter); assert(blk->public.io_limits_disabled); - --blk->public.io_limits_disabled; + atomic_dec(&blk->public.io_limits_disabled); if (--blk->quiesce_counter == 0) { if (blk->dev_ops && blk->dev_ops->drained_end) { |