linux-kernel - [PATCH 0/1] nilfs2: improve the performance of fdatasync()

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Message-Id: <1411467530-5949-1-git-send-email-konishi.ryusuke@lab.ntt.co.jp>
Date:	Tue, 23 Sep 2014 19:18:49 +0900
From:	Ryusuke Konishi <konishi.ryusuke@....ntt.co.jp>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	linux-nilfs <linux-nilfs@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Ryusuke Konishi <konishi.ryusuke@....ntt.co.jp>,
	Andreas Rohner <andreas.rohner@....net>
Subject: [PATCH 0/1] nilfs2: improve the performance of fdatasync()

Hi Andrew,

Please add the following patch to the queue for the next merge window.

It fixes a longstanding issue of fdatasync() implementation of NILFS2
where fdatasync() will fall back to a full sync most of the time.  The
fallback is only necessary for a change of the file size and not for a
change of the various timestamps.  Andreas Rohner fixed this issue by
discerning these situations properly.

Thanks,
Ryusuke Konishi
--
Andreas Rohner (1):
      nilfs2: improve the performance of fdatasync()

 fs/nilfs2/inode.c   |   13 +++++++------
 fs/nilfs2/nilfs.h   |   14 +++++++++++---
 fs/nilfs2/segment.c |    4 ++--
 3 files changed, 20 insertions(+), 11 deletions(-)

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