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-rw-r--r--include/linux/sched.h4
-rw-r--r--include/linux/sysctl.h1
2 files changed, 4 insertions, 1 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h
index eb5bc2f12788..f5fa0c07a7f8 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -179,7 +179,9 @@ asmlinkage void schedule(void);
struct namespace;
/* Maximum number of active map areas.. This is a random (large) number */
-#define MAX_MAP_COUNT (65536)
+#define DEFAULT_MAX_MAP_COUNT 65536
+
+extern int sysctl_max_map_count;
#include <linux/aio.h>
diff --git a/include/linux/sysctl.h b/include/linux/sysctl.h
index dbd57168ac61..3767428df94d 100644
--- a/include/linux/sysctl.h
+++ b/include/linux/sysctl.h
@@ -158,6 +158,7 @@ enum
VM_SWAPPINESS=19, /* Tendency to steal mapped memory */
VM_LOWER_ZONE_PROTECTION=20,/* Amount of protection of lower zones */
VM_MIN_FREE_KBYTES=21, /* Minimum free kilobytes to maintain */
+ VM_MAX_MAP_COUNT=22, /* int: Maximum number of mmaps/address-space */
};