From: Nick Piggin <npiggin@suse.de>
Date: Fri, 4 Jun 2010 21:14:49 +0000 (-0700)
Subject: m32r: invoke oom-killer from page fault
X-Git-Tag: v2.6.35-rc2~33
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=68db30ce609a8fc21b95f38f509c65dab0ecfa96;p=linux.git

m32r: invoke oom-killer from page fault

As explained in commit 1c0fe6e3bd ("mm: invoke oom-killer from page
fault") , we want to call the architecture independent oom killer when
getting an unexplained OOM from handle_mm_fault, rather than simply
killing current.

Signed-off-by: Nick Piggin <npiggin@suse.de>
Acked-by: David Rientjes <rientjes@google.com>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/arch/m32r/mm/fault.c b/arch/m32r/mm/fault.c
index 28ee389e5f5a..b8ec002aef8e 100644
--- a/arch/m32r/mm/fault.c
+++ b/arch/m32r/mm/fault.c
@@ -188,7 +188,6 @@ asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long error_code,
 	if ((error_code & ACE_INSTRUCTION) && !(vma->vm_flags & VM_EXEC))
 	  goto bad_area;
 
-survive:
 	/*
 	 * If for any reason at all we couldn't handle the fault,
 	 * make sure we exit gracefully rather than endlessly redo
@@ -271,15 +270,10 @@ asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long error_code,
  */
 out_of_memory:
 	up_read(&mm->mmap_sem);
-	if (is_global_init(tsk)) {
-		yield();
-		down_read(&mm->mmap_sem);
-		goto survive;
-	}
-	printk("VM: killing process %s\n", tsk->comm);
-	if (error_code & ACE_USERMODE)
-		do_group_exit(SIGKILL);
-	goto no_context;
+	if (!(error_code & ACE_USERMODE))
+		goto no_context;
+	pagefault_out_of_memory();
+	return;
 
 do_sigbus:
 	up_read(&mm->mmap_sem);