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Re: [PATCH 0/3] xfs_io: new functions

To: Dave Chinner <david@xxxxxxxxxxxxx>
Subject: Re: [PATCH 0/3] xfs_io: new functions
From: Mark Tinguely <tinguely@xxxxxxx>
Date: Mon, 24 Sep 2012 16:51:17 -0500
Cc: xfs@xxxxxxxxxxx
In-reply-to: <1343255450-28559-1-git-send-email-david@xxxxxxxxxxxxx>
References: <1343255450-28559-1-git-send-email-david@xxxxxxxxxxxxx>
User-agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:9.0) Gecko/20120122 Thunderbird/9.0
On 07/25/12 17:30, Dave Chinner wrote:
This is just a couple of additional functions for xfs_io I have had
sitting around for a while. The first is an interface to
sync_file_range() for better control of file writeback.  The second
and third introduce vectored pread/pwrite so that I could simulate
the same style of vectored IO that KVM does via direct IO (hint -
tracing indicated that the generic direct IO code doesn't handle
this particularly efficiently).


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