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-rw-r--r--include/linux/mm.h15
-rw-r--r--include/linux/security.h17
2 files changed, 17 insertions, 15 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h
index ba3a7cb1eaa..9a72cc78e6b 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -34,8 +34,6 @@ extern int sysctl_legacy_va_layout;
#define sysctl_legacy_va_layout 0
#endif
-extern unsigned long mmap_min_addr;
-
#include <asm/page.h>
#include <asm/pgtable.h>
#include <asm/processor.h>
@@ -575,19 +573,6 @@ static inline void set_page_links(struct page *page, enum zone_type zone,
}
/*
- * If a hint addr is less than mmap_min_addr change hint to be as
- * low as possible but still greater than mmap_min_addr
- */
-static inline unsigned long round_hint_to_min(unsigned long hint)
-{
- hint &= PAGE_MASK;
- if (((void *)hint != NULL) &&
- (hint < mmap_min_addr))
- return PAGE_ALIGN(mmap_min_addr);
- return hint;
-}
-
-/*
* Some inline functions in vmstat.h depend on page_zone()
*/
#include <linux/vmstat.h>
diff --git a/include/linux/security.h b/include/linux/security.h
index 963a48fc300..7b431155e39 100644
--- a/include/linux/security.h
+++ b/include/linux/security.h
@@ -28,6 +28,7 @@
#include <linux/resource.h>
#include <linux/sem.h>
#include <linux/shm.h>
+#include <linux/mm.h> /* PAGE_ALIGN */
#include <linux/msg.h>
#include <linux/sched.h>
#include <linux/key.h>
@@ -95,6 +96,7 @@ extern int cap_netlink_send(struct sock *sk, struct sk_buff *skb);
extern int cap_netlink_recv(struct sk_buff *skb, int cap);
extern unsigned long mmap_min_addr;
+extern unsigned long dac_mmap_min_addr;
/*
* Values used in the task_security_ops calls
*/
@@ -147,6 +149,21 @@ static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
opts->num_mnt_opts = 0;
}
+/*
+ * If a hint addr is less than mmap_min_addr change hint to be as
+ * low as possible but still greater than mmap_min_addr
+ */
+static inline unsigned long round_hint_to_min(unsigned long hint)
+{
+ hint &= PAGE_MASK;
+ if (((void *)hint != NULL) &&
+ (hint < mmap_min_addr))
+ return PAGE_ALIGN(mmap_min_addr);
+ return hint;
+}
+
+extern int mmap_min_addr_handler(struct ctl_table *table, int write, struct file *filp,
+ void __user *buffer, size_t *lenp, loff_t *ppos);
/**
* struct security_operations - main security structure
*