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mm/mlock.c: change can_do_mlock return value type to boolean

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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>
This commit is contained in:
Wang Xiaoqiang 2016-01-15 16:57:22 -08:00 committed by Linus Torvalds
parent 61e165578d
commit 7f43add451
2 changed files with 5 additions and 5 deletions
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2
include/linux/mm.h
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@ -1100,7 +1100,7 @@ static inline bool shmem_mapping(struct address_space *mapping)
}
#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 *);

8
mm/mlock.c
View file

@ -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);