ipc/shm.c: is_file_shm_hugepages() can be boolean
Make is_file_shm_hugepages() return bool to improve readability due to
this particular function only using either one or zero as its return
value.
No functional change.
Signed-off-by: Yaowei Bai <baiyaowei@cmss.chinamobile.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/include/linux/shm.h b/include/linux/shm.h
index 6fb8016..04e8818 100644
--- a/include/linux/shm.h
+++ b/include/linux/shm.h
@@ -52,7 +52,7 @@
long do_shmat(int shmid, char __user *shmaddr, int shmflg, unsigned long *addr,
unsigned long shmlba);
-int is_file_shm_hugepages(struct file *file);
+bool is_file_shm_hugepages(struct file *file);
void exit_shm(struct task_struct *task);
#define shm_init_task(task) INIT_LIST_HEAD(&(task)->sysvshm.shm_clist)
#else
@@ -66,9 +66,9 @@
{
return -ENOSYS;
}
-static inline int is_file_shm_hugepages(struct file *file)
+static inline bool is_file_shm_hugepages(struct file *file)
{
- return 0;
+ return false;
}
static inline void exit_shm(struct task_struct *task)
{
diff --git a/ipc/shm.c b/ipc/shm.c
index 4178727..ed3027d 100644
--- a/ipc/shm.c
+++ b/ipc/shm.c
@@ -459,7 +459,7 @@
.fallocate = shm_fallocate,
};
-int is_file_shm_hugepages(struct file *file)
+bool is_file_shm_hugepages(struct file *file)
{
return file->f_op == &shm_file_operations_huge;
}
