From: Paolo Bonzini <pbonzini@redhat.com>
To: Fam Zheng <famz@redhat.com>
Cc: qemu-devel@nongnu.org, qemu-block@nongnu.org
Subject: Re: [Qemu-devel] [PATCH 5/7] scsi-disk: add need_fua_emulation to SCSIDiskClass
Date: Tue, 24 May 2016 09:02:54 +0200 [thread overview]
Message-ID: <0bd78472-aeed-3c3f-b9be-99f51a20e2ef@redhat.com> (raw)
In-Reply-To: <20160524030422.GG14601@ad.usersys.redhat.com>
On 24/05/2016 05:04, Fam Zheng wrote:
> On Mon, 05/23 14:54, Paolo Bonzini wrote:
> > scsi-block will be able to do FUA just by passing the request through
> > to the LUN (which is also more efficient); there is no need to emulate
> > it like we do for scsi-disk.
>
> Even for scsi-disk, shall we just use the block layer FUA fallback already by
> passing BDRV_REQ_FUA in blk_aio_pwritev and simply the code in this series?
That's a good idea but it should be done separately, I think.
Thanks,
Paolo
next prev parent reply other threads:[~2016-05-24 7:03 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-23 12:54 [Qemu-devel] [PATCH v2 0/7] dma-helpers, scsi-block: use SG_IO for all I/O on scsi-block Paolo Bonzini
2016-05-23 12:54 ` [Qemu-devel] [PATCH 1/7] dma-helpers: change interface to byte-based Paolo Bonzini
2016-05-23 15:06 ` Eric Blake
2016-05-23 12:54 ` [Qemu-devel] [PATCH 2/7] dma-helpers: change BlockBackend to opaque value in DMAIOFunc Paolo Bonzini
2016-05-23 15:43 ` Eric Blake
2016-05-24 2:47 ` Fam Zheng
2016-05-24 7:05 ` Paolo Bonzini
2016-05-23 12:54 ` [Qemu-devel] [PATCH 3/7] scsi-disk: introduce a common base class Paolo Bonzini
2016-05-23 15:53 ` Eric Blake
2016-05-23 12:54 ` [Qemu-devel] [PATCH 4/7] scsi-disk: introduce dma_readv and dma_writev Paolo Bonzini
2016-05-23 16:09 ` Eric Blake
2016-06-01 19:07 ` Mark Cave-Ayland
2016-06-03 2:56 ` xiaoqiang zhao
2016-06-03 5:22 ` Mark Cave-Ayland
2016-06-03 6:07 ` xiaoqiang zhao
2016-05-23 12:54 ` [Qemu-devel] [PATCH 5/7] scsi-disk: add need_fua_emulation to SCSIDiskClass Paolo Bonzini
2016-05-23 16:34 ` Eric Blake
2016-05-24 3:04 ` Fam Zheng
2016-05-24 7:02 ` Paolo Bonzini [this message]
2016-05-23 12:54 ` [Qemu-devel] [PATCH 6/7] scsi-disk: introduce scsi_disk_req_check_error Paolo Bonzini
2016-05-23 19:16 ` Eric Blake
2016-05-23 12:54 ` [Qemu-devel] [PATCH 7/7] scsi-block: always use SG_IO Paolo Bonzini
2016-05-23 19:49 ` Eric Blake
2016-05-23 19:36 ` [Qemu-devel] [PATCH v2 0/7] dma-helpers, scsi-block: use SG_IO for all I/O on scsi-block Mark Cave-Ayland
2016-05-24 22:59 ` Mark Cave-Ayland
2016-05-25 8:45 ` Paolo Bonzini
2016-05-25 9:13 ` Mark Cave-Ayland
2016-05-25 10:11 ` Paolo Bonzini
2016-05-25 16:38 ` [Qemu-devel] [Qemu-block] " Kevin Wolf
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