[patch 09/14] mn10300: invoke oom-killer from page fault

npiggin
2010-04-22T16:17:32Z

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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-am33-list@redhat.com
Cc: David Howells <dhowells@redhat.com>
Cc: linux-arch@vger.kernel.org
Signed-off-by: Nick Piggin <npiggin@suse.de>
---
Index: linux-2.6/arch/mn10300/mm/fault.c
===================================================================
--- linux-2.6.orig/arch/mn10300/mm/fault.c
+++ linux-2.6/arch/mn10300/mm/fault.c
@@ -338,11 +338,10 @@ no_context:
*/
out_of_memory:
up_read(&mm->mmap_sem);
- monitor_signal(regs);
- printk(KERN_ALERT "VM: killing process %s\n", tsk->comm);
- if ((fault_code & MMUFCR_xFC_ACCESS) == MMUFCR_xFC_ACCESS_USR)
- do_exit(SIGKILL);
- goto no_context;
+ if ((fault_code & MMUFCR_xFC_ACCESS) != MMUFCR_xFC_ACCESS_USR)
+ goto no_context;
+ pagefault_out_of_memory();
+ return;

do_sigbus:
up_read(&mm->mmap_sem);