From: Kautuk Consul <consul.kautuk@gmail.com>
Date: Thu, 14 Jun 2012 20:11:37 +0000 (-0700)
Subject: [IA64] Port OOM changes to ia64_do_page_fault
X-Git-Tag: v3.6-rc1~130^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f28fa729149c8b39699f7995ce5fff34c5145a9d;p=pandora-kernel.git

[IA64] Port OOM changes to ia64_do_page_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 ia64.

Signed-off-by: Kautuk Consul <consul.kautuk@gmail.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
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