From: Kautuk Consul <consul.kautuk@gmail.com>
Date: Mon, 26 Mar 2012 06:40:49 +0000 (+0000)
Subject: sparc/mm/fault_64.c: Port OOM changes to do_sparc64_fault
X-Git-Tag: v3.4-rc3~48^2~2
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7358e51082b68e2026628220510a29197e2b9933;p=pandora-kernel.git

sparc/mm/fault_64.c: Port OOM changes to do_sparc64_fault

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@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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