From: Nick Piggin Date: Thu, 29 Apr 2010 21:48:18 +0000 (-0400) Subject: alpha: invoke oom-killer from page fault X-Git-Tag: v2.6.35-rc1~261^2~1 X-Git-Url: http://bbs.cooldavid.org/git/?a=commitdiff_plain;h=1cb3d8e2c8d30d2cbfe42b696d501d0a016edec1;p=net-next-2.6.git alpha: invoke oom-killer from page fault 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. [mattst88: kill now unused 'survive' label] Cc: linux-alpha@vger.kernel.org Cc: Richard Henderson Cc: linux-arch@vger.kernel.org Acked-by: David Rientjes Signed-off-by: Matt Turner Signed-off-by: Nick Piggin --- diff --git a/arch/alpha/mm/fault.c b/arch/alpha/mm/fault.c index 00a31deaa96..fadd5f882ff 100644 --- a/arch/alpha/mm/fault.c +++ b/arch/alpha/mm/fault.c @@ -142,7 +142,6 @@ do_page_fault(unsigned long address, unsigned long mmcsr, 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 the fault. */ @@ -188,16 +187,10 @@ do_page_fault(unsigned long address, unsigned long mmcsr, /* We ran out of memory, or some other thing happened to us that made us unable to handle the page fault gracefully. */ out_of_memory: - if (is_global_init(current)) { - yield(); - down_read(&mm->mmap_sem); - goto survive; - } - printk(KERN_ALERT "VM: killing process %s(%d)\n", - current->comm, task_pid_nr(current)); if (!user_mode(regs)) goto no_context; - do_group_exit(SIGKILL); + pagefault_out_of_memory(); + return; do_sigbus: /* Send a sigbus, regardless of whether we were in kernel