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From: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
To: LKML <linux-kernel@vger.kernel.org>
Cc: xfs-masters@oss.sgi.com, xfs@oss.sgi.com,
	Christoph Hellwig <hch@infradead.org>,
	linux-mm <linux-mm@kvack.org>,
	kosaki.motohiro@jp.fujitsu.com, linux-fsdevel@vger.kernel.org,
	Andrew Morton <akpm@linux-foundation.org>
Subject: [PATCH 7/7] xfs: Don't use PF_MEMALLOC
Date: Tue, 17 Nov 2009 16:23:43 +0900 (JST)	[thread overview]
Message-ID: <20091117162235.3DEB.A69D9226@jp.fujitsu.com> (raw)
In-Reply-To: <20091117161551.3DD4.A69D9226@jp.fujitsu.com>


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@infradead.org>
Cc: linux-fsdevel@vger.kernel.org
Cc: xfs-masters@oss.sgi.com
Cc: xfs@oss.sgi.com
Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.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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       reply	other threads:[~2009-11-17  7:23 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20091117161551.3DD4.A69D9226@jp.fujitsu.com>
2009-11-17  7:23 ` KOSAKI Motohiro [this message]
2009-11-17 22:11   ` [PATCH 7/7] xfs: Don't use PF_MEMALLOC Dave Chinner
2009-11-18  8:56     ` KOSAKI Motohiro
2009-11-18 22:16       ` Dave Chinner

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