Re: [PATCH 20/20 v4] sparc/mm/fault_64.c: Port OOM changes to do_sparc64_fault

[David Miller <davem@xxxxxxxxxxxxx>]

From: Kautuk Consul <consul.kautuk@xxxxxxxxx>
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@xxxxxxxxx>

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