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sh: 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-sh@vger.kernel.org
Cc: linux-arch@vger.kernel.org
Signed-off-by: Nick Piggin <npiggin@suse.de>
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Nick Piggin 2010-04-22 16:06:26 +00:00 committed by Paul Mundt
parent 4a6feab0ee
commit 6b6b18e62c
2 changed files with 8 additions and 24 deletions
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13
arch/sh/mm/fault_32.c
View File

@ -290,15 +290,10 @@ no_context:
*/
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", tsk->comm);
if (user_mode(regs))
do_group_exit(SIGKILL);
goto no_context;
if (!user_mode(regs))
goto no_context;
pagefault_out_of_memory();
return;
do_sigbus:
up_read(&mm->mmap_sem);

19
arch/sh/mm/tlbflush_64.c
View File

@ -294,22 +294,11 @@ no_context:
* us unable to handle the page fault gracefully.
*/
out_of_memory:
if (is_global_init(current)) {
panic("INIT out of memory\n");
yield();
goto survive;
}
printk("fault:Out of memory\n");
up_read(&mm->mmap_sem);
if (is_global_init(current)) {
yield();
down_read(&mm->mmap_sem);
goto survive;
}
printk("VM: killing process %s\n", tsk->comm);
if (user_mode(regs))
do_group_exit(SIGKILL);
goto no_context;
if (!user_mode(regs))
goto no_context;
pagefault_out_of_memory();
return;
do_sigbus:
printk("fault:Do sigbus\n");