linux-kernel - Re: [PATCH 20/20 v4] sparc/mm/fault_64.c: Port OOM changes to do_sparc64

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Message-Id: <20120326.173614.1619139899994626442.davem@davemloft.net>
Date:	Mon, 26 Mar 2012 17:36:14 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	consul.kautuk@...il.com
Cc:	paul.gortmaker@...driver.com, mingo@...e.hu, joe@...ches.com,
	a.p.zijlstra@...llo.nl, sparclinux@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 20/20 v4] sparc/mm/fault_64.c: Port OOM changes to
 do_sparc64_fault

From: Kautuk Consul <consul.kautuk@...il.com>
Date: Mon, 26 Mar 2012 12:40:49 -0400

> Commit d065bd810b6deb67d4897a14bfe21f8eb526ba99
> (mm: retry page fault when blocking on disk transfer) and
> commit 37b23e0525d393d48a7d59f870b3bc061a30ccdb
> (x86,mm: make pagefault killable)
> 
> The above commits introduced changes into the x86 pagefault handler
> for making the page fault handler retryable as well as killable.
> 
> These changes reduce the mmap_sem hold time, which is crucial
> during OOM killer invocation.
> 
> Port these changes to 64-bit sparc.
> 
> Signed-off-by: Kautuk Consul <consul.kautuk@...il.com>

Acked-by: David S. Miller <davem@...emloft.net>
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