On Mon, Jul 29, 2019 at 04:22:58PM +0530, Mukesh Ojha wrote:
> Let's use the mutex flag macro(which got moved from mutex.c
> to linux/mutex.h in the last patch) instead of hard code
> value which was used in __mutex_owner().
>
> Signed-off-by: Mukesh Ojha <mo...@codeaurora.org>
> ---
> include/linux/mutex.h | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/include/linux/mutex.h b/include/linux/mutex.h
> index 79b28be..c3833ba 100644
> --- a/include/linux/mutex.h
> +++ b/include/linux/mutex.h
> @@ -87,7 +87,7 @@ struct mutex {
> */
> static inline struct task_struct *__mutex_owner(struct mutex *lock)
> {
> - return (struct task_struct *)(atomic_long_read(&lock->owner) & ~0x07);
> + return (struct task_struct *)(atomic_long_read(&lock->owner) &
> ~MUTEX_FLAGS);
> }
I would _much_ rather move __mutex_owner() out of line, you're exposing
far too much stuff.
