From: Paolo Bonzini <pbonzini@redhat.com>
To: Fam Zheng <famz@redhat.com>
Cc: qemu-block@nongnu.org, qemu-devel@nongnu.org, stefanha@redhat.com
Subject: Re: [Qemu-devel] [PATCH 05/16] mirror: use bottom half to re-enter coroutine
Date: Wed, 9 Mar 2016 08:41:43 +0100 [thread overview]
Message-ID: <56DFD3B7.1020809@redhat.com> (raw)
In-Reply-To: <20160309031950.GD17947@ad.usersys.redhat.com>
On 09/03/2016 04:19, Fam Zheng wrote:
>> > + /* The I/O operation is not finished until the callback returns.
>> > + * If we call qemu_coroutine_enter here, there is the possibility
>> > + * of a deadlock when the coroutine calls bdrv_drained_begin.
>> > + */
>> > + op->co_enter_bh = qemu_bh_new(mirror_bh_cb, op);
> Shouldn't this be aio_bh_new()?
Yes, of course.
Paolo
next prev parent reply other threads:[~2016-03-09 7:41 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-16 17:56 [Qemu-devel] [PATCH 00/16] AioContext fine-grained locking, part 1 of 3, including bdrv_drain rewrite Paolo Bonzini
2016-02-16 17:56 ` [Qemu-devel] [PATCH 01/16] block: make bdrv_start_throttled_reqs return void Paolo Bonzini
2016-02-16 17:56 ` [Qemu-devel] [PATCH 02/16] block: move restarting of throttled reqs to block/throttle-groups.c Paolo Bonzini
2016-03-09 1:26 ` Fam Zheng
2016-03-09 7:37 ` Paolo Bonzini
2016-02-16 17:56 ` [Qemu-devel] [PATCH 03/16] block: introduce bdrv_no_throttling_begin/end Paolo Bonzini
2016-03-09 1:45 ` Fam Zheng
2016-03-09 7:40 ` Paolo Bonzini
2016-02-16 17:56 ` [Qemu-devel] [PATCH 04/16] block: plug whole tree at once, introduce bdrv_io_unplugged_begin/end Paolo Bonzini
2016-02-16 17:56 ` [Qemu-devel] [PATCH 05/16] mirror: use bottom half to re-enter coroutine Paolo Bonzini
2016-03-09 3:19 ` Fam Zheng
2016-03-09 7:41 ` Paolo Bonzini [this message]
2016-02-16 17:56 ` [Qemu-devel] [PATCH 06/16] block: add BDS field to count in-flight requests Paolo Bonzini
2016-03-09 3:35 ` Fam Zheng
2016-03-09 7:43 ` Paolo Bonzini
2016-03-09 8:00 ` Fam Zheng
2016-03-09 8:22 ` Paolo Bonzini
2016-03-09 8:33 ` Fam Zheng
2016-02-16 17:56 ` [Qemu-devel] [PATCH 07/16] block: change drain to look only at one child at a time Paolo Bonzini
2016-03-09 3:41 ` Fam Zheng
2016-03-09 7:49 ` Paolo Bonzini
2016-03-16 16:39 ` Stefan Hajnoczi
2016-03-16 17:41 ` Paolo Bonzini
2016-03-17 0:57 ` Fam Zheng
2016-02-16 17:56 ` [Qemu-devel] [PATCH 08/16] blockjob: introduce .drain callback for jobs Paolo Bonzini
2016-03-16 17:56 ` Stefan Hajnoczi
2016-02-16 17:56 ` [Qemu-devel] [PATCH 09/16] block: wait for all pending I/O when doing synchronous requests Paolo Bonzini
2016-03-09 8:13 ` Fam Zheng
2016-03-09 8:23 ` Paolo Bonzini
2016-03-16 18:04 ` Stefan Hajnoczi
2016-02-16 17:56 ` [Qemu-devel] [PATCH 10/16] nfs: replace aio_poll with bdrv_drain Paolo Bonzini
2016-02-16 17:56 ` [Qemu-devel] [PATCH 11/16] sheepdog: disable dataplane Paolo Bonzini
2016-02-16 17:56 ` [Qemu-devel] [PATCH 12/16] aio: introduce aio_context_in_iothread Paolo Bonzini
2016-02-16 17:56 ` [Qemu-devel] [PATCH 13/16] block: only call aio_poll from iothread Paolo Bonzini
2016-03-09 8:30 ` Fam Zheng
2016-03-09 8:55 ` Paolo Bonzini
2016-03-09 9:10 ` Paolo Bonzini
2016-03-09 9:27 ` Fam Zheng
2016-02-16 17:56 ` [Qemu-devel] [PATCH 14/16] iothread: release AioContext around aio_poll Paolo Bonzini
2016-02-16 17:56 ` [Qemu-devel] [PATCH 15/16] qemu-thread: introduce QemuRecMutex Paolo Bonzini
2016-02-16 17:56 ` [Qemu-devel] [PATCH 16/16] aio: convert from RFifoLock to QemuRecMutex Paolo Bonzini
2016-03-08 17:51 ` [Qemu-devel] [PATCH 00/16] AioContext fine-grained locking, part 1 of 3, including bdrv_drain rewrite Paolo Bonzini
2016-03-09 8:46 ` Fam Zheng
2016-03-16 18:18 ` Stefan Hajnoczi
2016-03-16 22:29 ` Paolo Bonzini
2016-03-17 13:44 ` [Qemu-devel] [Qemu-block] " Stefan Hajnoczi
2016-03-17 13:48 ` Paolo Bonzini
2016-03-18 15:49 ` Stefan Hajnoczi
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