From: Fam Zheng <famz@redhat.com>
To: Stefan Hajnoczi <stefanha@redhat.com>
Cc: Kevin Wolf <kwolf@redhat.com>,
qemu-devel@nongnu.org, qemu-block@nongnu.org
Subject: Re: [Qemu-devel] [PATCH for-2.5 v2 0/4] block: replace IOV_MAX with BlockLimits.max_iov
Date: Fri, 10 Jul 2015 14:26:12 +0800 [thread overview]
Message-ID: <20150710062612.GF31230@ad.nay.redhat.com> (raw)
In-Reply-To: <1436435807-29422-1-git-send-email-stefanha@redhat.com>
On Thu, 07/09 10:56, Stefan Hajnoczi wrote:
> v2:
> * Default to IOV_MAX instead of INT_MAX [Peter Lieven]
>
> This series depends on "[PATCH] block/mirror: limit qiov to IOV_MAX elements".
>
> IOV_MAX has been hardcoded in several places since preadv()/pwritev()/etc
> refuse to take more iovecs per call. That's actually an implementation detail
> of raw-posix and we shouldn't spread that across the codebase.
>
> This series adds BlockLimits.max_iov (similar to BlockLimits.max_transfer_len
> and other fields). Current IOV_MAX users are converted to blk_get_max_iov().
>
> By the way, the IOV_MAX vs BlockLimits.max_iov naming is slightly confusing but
> follows the BlockLimits field naming convention. Once IOV_MAX is banished no
> one will be bothered by the reverse naming anymore.
>
> Suggested-by: Kevin Wolf <kwolf@redhat.com>
Series:
Reviewed-by: Fam Zheng <famz@redhat.com>
next prev parent reply other threads:[~2015-07-10 6:26 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-09 9:56 [Qemu-devel] [PATCH for-2.5 v2 0/4] block: replace IOV_MAX with BlockLimits.max_iov Stefan Hajnoczi
2015-07-09 9:56 ` [Qemu-devel] [PATCH for-2.5 v2 1/4] block: add BlockLimits.max_iov field Stefan Hajnoczi
2015-07-09 9:56 ` [Qemu-devel] [PATCH for-2.5 v2 2/4] block-backend: add blk_get_max_iov() Stefan Hajnoczi
2015-07-09 9:56 ` [Qemu-devel] [PATCH for-2.5 v2 3/4] block: replace IOV_MAX with BlockLimits.max_iov Stefan Hajnoczi
2015-07-09 9:56 ` [Qemu-devel] [PATCH for-2.5 v2 4/4] block/mirror: replace IOV_MAX with blk_get_max_iov() Stefan Hajnoczi
2015-07-10 6:26 ` Fam Zheng [this message]
2015-11-18 14:51 ` [Qemu-devel] [PATCH for-2.5 v2 0/4] block: replace IOV_MAX with BlockLimits.max_iov Kevin Wolf
2015-11-23 10:08 ` Stefan Hajnoczi
2015-11-23 10:08 ` Stefan Hajnoczi
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