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| author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2009-03-26 15:23:44 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2009-03-26 15:24:03 +0100 |
| commit | 59fa4392dddae244a1148cbbcb090b5a5728f576 (patch) | |
| tree | fcd12ee2d91ee3abba9f24dce1ea3823f915a07e | |
| parent | 099b765139929efdcf232f8870804accf8c4cdc5 (diff) | |
| download | linux-3.10-59fa4392dddae244a1148cbbcb090b5a5728f576.tar.gz linux-3.10-59fa4392dddae244a1148cbbcb090b5a5728f576.tar.bz2 linux-3.10-59fa4392dddae244a1148cbbcb090b5a5728f576.zip | |
[S390] page fault: invoke oom-killer
s390 arch backend for 1c0fe6e3bda0464728c23c8d84aa47567e8b716c
"mm: invoke oom-killer from page fault".
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| -rw-r--r-- | arch/s390/mm/fault.c | 28 |
1 files changed, 2 insertions, 26 deletions
diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c index 4d537205e83..833e8366c35 100644 --- a/arch/s390/mm/fault.c +++ b/arch/s390/mm/fault.c @@ -200,29 +200,6 @@ static void do_low_address(struct pt_regs *regs, unsigned long error_code) do_no_context(regs, error_code, 0); } -/* - * We ran out of memory, or some other thing happened to us that made - * us unable to handle the page fault gracefully. - */ -static int do_out_of_memory(struct pt_regs *regs, unsigned long error_code, - unsigned long address) -{ - struct task_struct *tsk = current; - struct mm_struct *mm = tsk->mm; - - up_read(&mm->mmap_sem); - if (is_global_init(tsk)) { - yield(); - down_read(&mm->mmap_sem); - return 1; - } - printk("VM: killing process %s\n", tsk->comm); - if (regs->psw.mask & PSW_MASK_PSTATE) - do_group_exit(SIGKILL); - do_no_context(regs, error_code, address); - return 0; -} - static void do_sigbus(struct pt_regs *regs, unsigned long error_code, unsigned long address) { @@ -367,7 +344,6 @@ good_area: goto bad_area; } -survive: if (is_vm_hugetlb_page(vma)) address &= HPAGE_MASK; /* @@ -378,8 +354,8 @@ survive: fault = handle_mm_fault(mm, vma, address, write); if (unlikely(fault & VM_FAULT_ERROR)) { if (fault & VM_FAULT_OOM) { - if (do_out_of_memory(regs, error_code, address)) - goto survive; + up_read(&mm->mmap_sem); + pagefault_out_of_memory(); return; } else if (fault & VM_FAULT_SIGBUS) { do_sigbus(regs, error_code, address); |