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| author | David Rientjes <rientjes@google.com> | 2014-08-07 01:07:50 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-08-07 03:01:21 +0200 |
| commit | 8d060bf490930f305c4efc45724e861a268f4d2f (patch) | |
| tree | 96c2c1ee46be53f13d73f365cbbf3615325738b1 /drivers/tty/sysrq.c | |
| parent | memory-hotplug: sh: suitable memory should go to ZONE_MOVABLE (diff) | |
| download | linux-8d060bf490930f305c4efc45724e861a268f4d2f.tar.xz linux-8d060bf490930f305c4efc45724e861a268f4d2f.zip | |
mm, oom: ensure memoryless node zonelist always includes zones
With memoryless node support being worked on, it's possible that for
optimizations that a node may not have a non-NULL zonelist. When
CONFIG_NUMA is enabled and node 0 is memoryless, this means the zonelist
for first_online_node may become NULL.
The oom killer requires a zonelist that includes all memory zones for
the sysrq trigger and pagefault out of memory handler.
Ensure that a non-NULL zonelist is always passed to the oom killer.
[akpm@linux-foundation.org: fix non-numa build]
Signed-off-by: David Rientjes <rientjes@google.com>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Rik van Riel <riel@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/tty/sysrq.c')
| -rw-r--r-- | drivers/tty/sysrq.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/tty/sysrq.c b/drivers/tty/sysrq.c index 454b65898e2c..42bad18c66c9 100644 --- a/drivers/tty/sysrq.c +++ b/drivers/tty/sysrq.c @@ -355,7 +355,7 @@ static struct sysrq_key_op sysrq_term_op = { static void moom_callback(struct work_struct *ignored) { - out_of_memory(node_zonelist(first_online_node, GFP_KERNEL), GFP_KERNEL, + out_of_memory(node_zonelist(first_memory_node, GFP_KERNEL), GFP_KERNEL, 0, NULL, true); } |