[patch -mm] oom: move sysctl declarations to oom.h

[patch -mm] oom: move sysctl declarations to oom.h

[David Rientjes]

The three oom killer sysctl variables (sysctl_panic_on_oom,
sysctl_oom_forkbomb_thres, and sysctl_oom_kill_quick) are better declared
in include/linux/oom.h rather than kernel/sysctl.c.

Signed-off-by: David Rientjes <rientjes@google.com>
---
 include/linux/oom.h |    6 ++++++
 kernel/sysctl.c     |    4 +---
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/include/linux/oom.h b/include/linux/oom.h
--- a/include/linux/oom.h
+++ b/include/linux/oom.h
@@ -61,5 +61,11 @@ static inline void oom_killer_enable(void)
 {
 	oom_killer_disabled = false;
 }
+
+/* sysctls */
+extern int sysctl_panic_on_oom;
+extern int sysctl_oom_forkbomb_thres;
+extern int sysctl_oom_kill_quick;
+
 #endif /* __KERNEL__*/
 #endif /* _INCLUDE_LINUX_OOM_H */
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -53,6 +53,7 @@
 #include <linux/slow-work.h>
 #include <linux/perf_event.h>
 #include <linux/kprobes.h>
+#include <linux/oom.h>
 
 #include <asm/uaccess.h>
 #include <asm/processor.h>
@@ -81,9 +82,6 @@
 /* External variables not in a header file. */
 extern int sysctl_overcommit_memory;
 extern int sysctl_overcommit_ratio;
-extern int sysctl_panic_on_oom;
-extern int sysctl_oom_kill_quick;
-extern int sysctl_oom_forkbomb_thres;
 extern int max_threads;
 extern int core_uses_pid;
 extern int suid_dumpable;

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