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sched: Change task_struct::state

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Change the type and name of task_struct::state. Drop the volatile and
shrink it to an 'unsigned int'. Rename it in order to find all uses
such that we can use READ_ONCE/WRITE_ONCE as appropriate.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Daniel Bristot de Oliveira <bristot@redhat.com>
Acked-by: Will Deacon <will@kernel.org>
Acked-by: Daniel Thompson <daniel.thompson@linaro.org>
Link: https://lore.kernel.org/r/20210611082838.550736351@infradead.org
This commit is contained in:
Peter Zijlstra
2021-06-11 10:28:17 +02:00
parent 7c3edd6d9c
commit 2f064a59a1
28 changed files with 123 additions and 111 deletions
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4
kernel/locking/rtmutex.c
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@@ -1135,7 +1135,7 @@ void __sched rt_mutex_init_waiter(struct rt_mutex_waiter *waiter)
*
* Must be called with lock->wait_lock held and interrupts disabled
*/
static int __sched __rt_mutex_slowlock(struct rt_mutex *lock, int state,
static int __sched __rt_mutex_slowlock(struct rt_mutex *lock, unsigned int state,
struct hrtimer_sleeper *timeout,
struct rt_mutex_waiter *waiter)
{
@@ -1190,7 +1190,7 @@ static void __sched rt_mutex_handle_deadlock(int res, int detect_deadlock,
/*
* Slow path lock function:
*/
static int __sched rt_mutex_slowlock(struct rt_mutex *lock, int state,
static int __sched rt_mutex_slowlock(struct rt_mutex *lock, unsigned int state,
struct hrtimer_sleeper *timeout,
enum rtmutex_chainwalk chwalk)
{