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| author |   Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2010-05-06 17:15:58 +1000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2010-05-06 17:15:58 +1000 |
| commit | e460c2c91af44374cbfa3f1c70f5ca9bbf099aa9 (patch) | |
| tree | 7b59d216c38c9a20c6fed47c93f3fed944d72219 /arch/powerpc/mm/fault.c | |
| parent | powerpc/mm: Track backing pages allocated by vmemmap_populate() (diff) | |
| download | linux-dev-e460c2c91af44374cbfa3f1c70f5ca9bbf099aa9.tar.xz linux-dev-e460c2c91af44374cbfa3f1c70f5ca9bbf099aa9.zip | |
powerpc: 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.
Cc: linuxppc-dev@ozlabs.org
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: linux-arch@vger.kernel.org
Signed-off-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/mm/fault.c')
| -rw-r--r-- | arch/powerpc/mm/fault.c | 14 |
1 files changed, 4 insertions, 10 deletions
diff --git a/arch/powerpc/mm/fault.c b/arch/powerpc/mm/fault.c index 83ac4935eb10..1bd712c33ce2 100644 --- a/arch/powerpc/mm/fault.c +++ b/arch/powerpc/mm/fault.c @@ -308,7 +308,6 @@ good_area: * make sure we exit gracefully rather than endlessly redo * the fault. */ - survive: ret = handle_mm_fault(mm, vma, address, is_write ? FAULT_FLAG_WRITE : 0); if (unlikely(ret & VM_FAULT_ERROR)) { if (ret & VM_FAULT_OOM) @@ -360,15 +359,10 @@ bad_area_nosemaphore: */ 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); - return SIGKILL; + if (!user_mode(regs)) + return SIGKILL; + pagefault_out_of_memory(); + return 0; do_sigbus: up_read(&mm->mmap_sem); |