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Subject[PATCH 2/5] locking/percpu-rwsem: Convert to bool
Use bool where possible.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
---
include/linux/percpu-rwsem.h | 6 +++---
kernel/locking/percpu-rwsem.c | 8 ++++----
2 files changed, 7 insertions(+), 7 deletions(-)

--- a/include/linux/percpu-rwsem.h
+++ b/include/linux/percpu-rwsem.h
@@ -41,7 +41,7 @@ is_static struct percpu_rw_semaphore nam
#define DEFINE_STATIC_PERCPU_RWSEM(name) \
__DEFINE_PERCPU_RWSEM(name, static)

-extern int __percpu_down_read(struct percpu_rw_semaphore *, int);
+extern bool __percpu_down_read(struct percpu_rw_semaphore *, bool);
extern void __percpu_up_read(struct percpu_rw_semaphore *);

static inline void percpu_down_read(struct percpu_rw_semaphore *sem)
@@ -69,9 +69,9 @@ static inline void percpu_down_read(stru
preempt_enable();
}

-static inline int percpu_down_read_trylock(struct percpu_rw_semaphore *sem)
+static inline bool percpu_down_read_trylock(struct percpu_rw_semaphore *sem)
{
- int ret = 1;
+ bool ret = true;

preempt_disable();
/*
--- a/kernel/locking/percpu-rwsem.c
+++ b/kernel/locking/percpu-rwsem.c
@@ -45,7 +45,7 @@ void percpu_free_rwsem(struct percpu_rw_
}
EXPORT_SYMBOL_GPL(percpu_free_rwsem);

-int __percpu_down_read(struct percpu_rw_semaphore *sem, int try)
+bool __percpu_down_read(struct percpu_rw_semaphore *sem, bool try)
{
/*
* Due to having preemption disabled the decrement happens on
@@ -69,7 +69,7 @@ int __percpu_down_read(struct percpu_rw_
* release in percpu_up_write().
*/
if (likely(!smp_load_acquire(&sem->readers_block)))
- return 1;
+ return true;

/*
* Per the above comment; we still have preemption disabled and
@@ -78,7 +78,7 @@ int __percpu_down_read(struct percpu_rw_
__percpu_up_read(sem);

if (try)
- return 0;
+ return false;

/*
* We either call schedule() in the wait, or we'll fall through
@@ -94,7 +94,7 @@ int __percpu_down_read(struct percpu_rw_
__up_read(&sem->rw_sem);

preempt_disable();
- return 1;
+ return true;
}
EXPORT_SYMBOL_GPL(__percpu_down_read);


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