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authorLey Foon Tan2015-03-16 15:35:25 +0800
committerLey Foon Tan2015-03-16 15:35:25 +0800
commit6347e2a10f7031dc3725e6f4519089517c0ca521 (patch)
tree5c2156ea9bb48eea0224ca7fe4f5db22dcd0ed48 /arch
parentc105e86ace5a32ee4760a502bc45dcd26fed2375 (diff)
nios2: mm: do not invoke OOM killer on kernel fault OOM
Follow commit 871341023c771ad. Kernel faults are expected to handle OOM conditions gracefully (gup, uaccess etc.), so they should never invoke the OOM killer. Reserve this for faults triggered in user context when it is the only option. Signed-off-by: Ley Foon Tan <lftan@altera.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/nios2/mm/fault.c6
1 files changed, 0 insertions, 6 deletions
diff --git a/arch/nios2/mm/fault.c b/arch/nios2/mm/fault.c
index 0d231adfe576..0c9b6afe69e9 100644
--- a/arch/nios2/mm/fault.c
+++ b/arch/nios2/mm/fault.c
@@ -126,7 +126,6 @@ good_area:
break;
}
-survive:
/*
* If for any reason at all we couldn't handle the fault,
* make sure we exit gracefully rather than endlessly redo
@@ -220,11 +219,6 @@ no_context:
*/
out_of_memory:
up_read(&mm->mmap_sem);
- if (is_global_init(tsk)) {
- yield();
- down_read(&mm->mmap_sem);
- goto survive;
- }
if (!user_mode(regs))
goto no_context;
pagefault_out_of_memory();