Ok，thanks for your reply. -----邮件原件----- 发件人: Stefan Hajnoczi [mailto:stefa...@gmail.com] 发送时间: 2017年10月24日 1:41 收件人: lizhengui 抄送: kw...@redhat.com; jc...@redhat.com; mre...@redhat.com; pbonz...@redhat.com; Lulina (A); qemu-bl...@nongnu.org; Subo (A); Fangyi (C); qemu-devel@nongnu.org; wangjie (P); jiangxiaoqing (C) 主题: Re: [Qemu-block] [PATCH] block: all I/O should be completed before removing throttle timers.
On Sat, Oct 21, 2017 at 01:34:00PM +0800, Zhengui Li wrote: > From: Zhengui <lizhen...@huawei.com> > > In blk_remove_bs, all I/O should be completed before removing throttle > timers. If there has inflight I/O, removing throttle timers here will > cause the inflight I/O never return. > This patch add bdrv_drained_begin before > throttle_timers_detach_aio_context > to let all I/O completed before removing throttle timers. > > Signed-off-by: Zhengui <lizhen...@huawei.com> > --- > block/block-backend.c | 4 ++++ > 1 file changed, 4 insertions(+) Related (but not equivalent) patch here: https://patchwork.kernel.org/patch/9970023/ Reviewed-by: Stefan Hajnoczi <stefa...@redhat.com>
