From: Theodore Tso <tytso@mit.edu>
To: Mingming <cmm@us.ibm.com>
Cc: Curt Wohlgemuth <curtw@google.com>,
ext4 development <linux-ext4@vger.kernel.org>
Subject: Re: [PATCH 2/4 v2] avoid perform unwritten convertion for direct IO over non fallocated space
Date: Tue, 3 Nov 2009 21:10:26 -0500 [thread overview]
Message-ID: <20091104021026.GG6510@mit.edu> (raw)
In-Reply-To: <1256165281.6404.4.camel@mingming-laptop>
I fixed up some white space issues, and rewrote the patch description
as follows:
ext4: skip conversion of uninit extents after direct IO if there isn't any
At the end of direct I/O operation, ext4_ext_direct_IO() always called
ext4_convert_unwritten_extents(), regardless of whether there were any
unwritten extents involved in the I/O or not.
This commit adds a state flag so that ext4_ext_direct_IO() only calls
ext4_convert_unwritten_extents() when necessary.
Signed-off-by: Mingming Cao <cmm@us.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Added to the patch queue.
- Ted
prev parent reply other threads:[~2009-11-04 2:10 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-10-09 1:13 [PATCH 2/4 v2] avoid perform unwritten convertion for direct IO over non fallocated space Mingming
2009-10-20 15:03 ` Curt Wohlgemuth
2009-10-21 22:48 ` Mingming
2009-11-04 2:10 ` Theodore Tso [this message]
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