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From: Christoph Hellwig <hch-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
To: Sagi Grimberg <sagig-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
Cc: Christoph Hellwig <hch-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>,
	Doug Ledford <dledford-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
	linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	Or Gerlitz <ogerlitz-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>,
	Eli Cohen <eli-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>,
	Oren Duer <oren-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
Subject: Re: [PATCH 0/5] Indirect memory registration feature
Date: Tue, 9 Jun 2015 00:41:54 -0700	[thread overview]
Message-ID: <20150609074154.GA5223@infradead.org> (raw)
In-Reply-To: <5575A9C7.7000409-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>

On Mon, Jun 08, 2015 at 05:42:15PM +0300, Sagi Grimberg wrote:
> I think O_DIRECT allows user-space to generate vectored SG lists that
> are not aligned as well.

Indeed if you do sub-page size direct I/O.  Although SG_GAPS helps with
that.
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      parent reply	other threads:[~2015-06-09  7:41 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-06-08 13:15 [PATCH 0/5] Indirect memory registration feature Sagi Grimberg
     [not found] ` <1433769339-949-1-git-send-email-sagig-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2015-06-08 13:15   ` [PATCH 1/5] IB/core: Introduce Fast Indirect Memory Registration verbs API Sagi Grimberg
     [not found]     ` <1433769339-949-2-git-send-email-sagig-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2015-06-08 20:49       ` Hefty, Sean
     [not found]         ` <1828884A29C6694DAF28B7E6B8A82373A8FE5C7C-P5GAC/sN6hkd3b2yrw5b5LfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2015-06-30 11:47           ` Sagi Grimberg
     [not found]             ` <559281B4.6010807-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
2015-06-30 12:10               ` Christoph Hellwig
     [not found]                 ` <20150630121002.GA24169-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
2015-06-30 12:59                   ` Sagi Grimberg
     [not found]                     ` <559292CE.9010303-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
2015-07-01  7:23                       ` Christoph Hellwig
2015-06-08 13:15   ` [PATCH 2/5] IB/mlx5: Implement Fast Indirect Memory Registration Feature Sagi Grimberg
2015-06-08 13:15   ` [PATCH 3/5] IB/iser: Pass iser device to registration routines Sagi Grimberg
2015-06-08 13:15   ` [PATCH 4/5] IB/iser: Add indirect registration support Sagi Grimberg
2015-06-08 13:15   ` [PATCH 5/5] IB/iser: Add debug prints to the various memory registration methods Sagi Grimberg
2015-06-08 13:22   ` [PATCH 0/5] Indirect memory registration feature Christoph Hellwig
     [not found]     ` <20150608132254.GA14773-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
2015-06-08 13:39       ` Sagi Grimberg
     [not found]         ` <55759B0B.8050805-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2015-06-08 13:51           ` Christoph Hellwig
     [not found]             ` <20150608135151.GA14021-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
2015-06-08 14:42               ` Sagi Grimberg
     [not found]                 ` <5575A9C7.7000409-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
2015-06-09  6:20                   ` Christoph Hellwig
     [not found]                     ` <20150609062054.GA13011-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
2015-06-09  8:44                       ` Sagi Grimberg
     [not found]                         ` <5576A760.4090004-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
2015-06-09 11:14                           ` Christoph Hellwig
2015-06-09 15:06                           ` Chuck Lever
2015-06-09  7:41                   ` Christoph Hellwig [this message]

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