From: Kautuk Consul <consul.kautuk@gmail.com>
Date: Sun, 19 Aug 2012 02:41:01 +0000 (+1200)
Subject: alpha/mm/fault.c: Port OOM changes to do_page_fault
X-Git-Tag: v3.6-rc3~31^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0bcc426b1defa6b629dfa722537cab38876a3ce4;p=pandora-kernel.git

alpha/mm/fault.c: Port OOM changes to do_page_fault

Commit d065bd810b6d ("mm: retry page fault when blocking on disk
transfer") and 37b23e0525d3 ("x86,mm: make pagefault killable")
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 ALPHA.

Signed-off-by: Mohd. Faris <mohdfarisq2010@gmail.com>
Signed-off-by: Kautuk Consul <consul.kautuk@gmail.com>
Acked-by: Matt Turner <mattst88@gmail.com>
Signed-off-by: Michael Cree <mcree@orcon.net.nz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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