From: Julien Grall <jgrall@amazon.com>
The lock is not meant to be modified by _rw_is{,_write}_locked(). So
constify it.
This is helpful to be able to assert if the lock is taken when the
underlying structure is const.
Signed-off-by: Julien Grall <jgrall@amazon.com>
---
xen/include/xen/rwlock.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/xen/include/xen/rwlock.h b/xen/include/xen/rwlock.h
index b8d52a5aa939..e0d2b41c5c7e 100644
--- a/xen/include/xen/rwlock.h
+++ b/xen/include/xen/rwlock.h
@@ -149,7 +149,7 @@ static inline void _read_unlock_irqrestore(rwlock_t *lock, unsigned long flags)
local_irq_restore(flags);
}
-static inline int _rw_is_locked(rwlock_t *lock)
+static inline int _rw_is_locked(const rwlock_t *lock)
{
return atomic_read(&lock->cnts);
}
@@ -254,7 +254,7 @@ static inline void _write_unlock_irqrestore(rwlock_t *lock, unsigned long flags)
local_irq_restore(flags);
}
-static inline int _rw_is_write_locked(rwlock_t *lock)
+static inline int _rw_is_write_locked(const rwlock_t *lock)
{
return (atomic_read(&lock->cnts) & _QW_WMASK) == _QW_LOCKED;
}
--
2.38.1