linux-kernel - [PATCH 7/7] xfs: Don't use PF

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Message-Id: <20091117162235.3DEB.A69D9226@jp.fujitsu.com>
Date:	Tue, 17 Nov 2009 16:23:43 +0900 (JST)
From:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
To:	LKML <linux-kernel@...r.kernel.org>
Cc:	kosaki.motohiro@...fujitsu.com, linux-mm <linux-mm@...ck.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Christoph Hellwig <hch@...radead.org>,
	linux-fsdevel@...r.kernel.org, xfs-masters@....sgi.com,
	xfs@....sgi.com
Subject: [PATCH 7/7] xfs: Don't use PF_MEMALLOC


Non MM subsystem must not use PF_MEMALLOC. Memory reclaim need few
memory, anyone must not prevent it. Otherwise the system cause
mysterious hang-up and/or OOM Killer invokation.

Cc: Christoph Hellwig <hch@...radead.org>
Cc: linux-fsdevel@...r.kernel.org
Cc: xfs-masters@....sgi.com
Cc: xfs@....sgi.com
Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
---
 fs/xfs/linux-2.6/xfs_buf.c |    2 --
 1 files changed, 0 insertions(+), 2 deletions(-)

diff --git a/fs/xfs/linux-2.6/xfs_buf.c b/fs/xfs/linux-2.6/xfs_buf.c
index 965df12..b9a06fc 100644
--- a/fs/xfs/linux-2.6/xfs_buf.c
+++ b/fs/xfs/linux-2.6/xfs_buf.c
@@ -1724,8 +1724,6 @@ xfsbufd(
 	int		count;
 	xfs_buf_t	*bp;
 
-	current->flags |= PF_MEMALLOC;
-
 	set_freezable();
 
 	do {
-- 
1.6.2.5



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