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Commit 53186095 authored by David Rientjes's avatar David Rientjes Committed by Greg Kroah-Hartman
Browse files

mm, oom: ensure sysrq+f always passes valid zonelist 



With hotpluggable and memoryless nodes, it's possible that node 0 will
not be online, so use the first online node's zonelist rather than
hardcoding node 0 to pass a zonelist with all zones to the oom killer.

Signed-off-by: default avatarDavid Rientjes <rientjes@google.com>
Reviewed-by: default avatarMichal Hocko <mhocko@suse.cz>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 18e0749a

drivers/tty/sysrq.c

+2 −1
Original line number Diff line number Diff line
@@ -346,7 +346,8 @@ static struct sysrq_key_op sysrq_term_op = { 


static void moom_callback(struct work_struct *ignored)

{

	out_of_memory(node_zonelist(0, GFP_KERNEL), GFP_KERNEL, 0, NULL, true);

	out_of_memory(node_zonelist(first_online_node, GFP_KERNEL), GFP_KERNEL,

		      0, NULL, true);

}



static DECLARE_WORK(moom_work, moom_callback);