mm/mlock.c: change can_do_mlock return value type to boolean
Since can_do_mlock only return 1 or 0, so make it boolean.
No functional change.
[akpm@linux-foundation.org: update declaration in mm.h]
Signed-off-by: Wang Xiaoqiang <wangxq10@lzu.edu.cn>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 1d6ec55..f1cd22f 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1100,7 +1100,7 @@
}
#endif
-extern int can_do_mlock(void);
+extern bool can_do_mlock(void);
extern int user_shm_lock(size_t, struct user_struct *);
extern void user_shm_unlock(size_t, struct user_struct *);
diff --git a/mm/mlock.c b/mm/mlock.c
index 9197b67..e1e2b12 100644
--- a/mm/mlock.c
+++ b/mm/mlock.c
@@ -24,13 +24,13 @@
#include "internal.h"
-int can_do_mlock(void)
+bool can_do_mlock(void)
{
if (rlimit(RLIMIT_MEMLOCK) != 0)
- return 1;
+ return true;
if (capable(CAP_IPC_LOCK))
- return 1;
- return 0;
+ return true;
+ return false;
}
EXPORT_SYMBOL(can_do_mlock);