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[PATCH 0/3] xfs_io: new functions

To: xfs@xxxxxxxxxxx
Subject: [PATCH 0/3] xfs_io: new functions
From: Dave Chinner <david@xxxxxxxxxxxxx>
Date: Thu, 26 Jul 2012 08:30:47 +1000
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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