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m68k: invoke oom-killer from page fault

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As explained in commit 1c0fe6e3bd, we want to call the architecture independent
oom killer when getting an unexplained OOM from handle_mm_fault, rather than
simply killing current.

Cc: linux-m68k@lists.linux-m68k.org
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: linux-arch@vger.kernel.org
Signed-off-by: Nick Piggin <npiggin@suse.de>
Acked-by: David Rientjes <rientjes@google.com>
[Geert] Kill 2 introduced compiler warnings
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
This commit is contained in:
Nick Piggin 2010-04-23 02:06:20 +10:00 committed by Geert Uytterhoeven
parent f3c7f317c9
commit adbf6e6952
1 changed files with 4 additions and 10 deletions
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14
arch/m68k/mm/fault.c
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@ -154,7 +154,6 @@ int do_page_fault(struct pt_regs *regs, unsigned long address,
* the fault.
*/
survive:
fault = handle_mm_fault(mm, vma, address, write ? FAULT_FLAG_WRITE : 0);
#ifdef DEBUG
printk("handle_mm_fault returns %d\n",fault);
@ -180,15 +179,10 @@ int do_page_fault(struct pt_regs *regs, unsigned long address,
*/
out_of_memory:
up_read(&mm->mmap_sem);
if (is_global_init(current)) {
yield();
down_read(&mm->mmap_sem);
goto survive;
}
printk("VM: killing process %s\n", current->comm);
if (user_mode(regs))
do_group_exit(SIGKILL);
if (!user_mode(regs))
goto no_context;
pagefault_out_of_memory();
return 0;
no_context:
current->thread.signo = SIGBUS;