[tip:timers/core] workqueue: Convert timers to use timer_setup() (part 2)

From: tip-bot for Kees Cook
Date: Wed Oct 18 2017 - 11:10:22 EST


Commit-ID: 32a6c7233c41216f5dd41fc7bf100eedb1063dfc
Gitweb: https://git.kernel.org/tip/32a6c7233c41216f5dd41fc7bf100eedb1063dfc
Author: Kees Cook <keescook@xxxxxxxxxxxx>
AuthorDate: Mon, 16 Oct 2017 15:58:25 -0700
Committer: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
CommitDate: Wed, 18 Oct 2017 17:04:25 +0200

workqueue: Convert timers to use timer_setup() (part 2)

In preparation for unconditionally passing the struct timer_list pointer
to all timer callbacks, switch to using the new timer_setup() and
from_timer() to pass the timer pointer explicitly. (The prior workqueue
patch missed a few timers.)

Signed-off-by: Kees Cook <keescook@xxxxxxxxxxxx>
Acked-by: Tejun Heo <tj@xxxxxxxxxx>
Cc: Lai Jiangshan <jiangshanlai@xxxxxxxxx>
Link: 20171016225825.GA99101@beast">https://lkml.kernel.org/r/20171016225825.GA99101@beast
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>

---
kernel/workqueue.c | 14 ++++++--------
1 file changed, 6 insertions(+), 8 deletions(-)

diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index c77fdf6..6e5eed58 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -1831,9 +1831,9 @@ static void destroy_worker(struct worker *worker)
wake_up_process(worker->task);
}

-static void idle_worker_timeout(unsigned long __pool)
+static void idle_worker_timeout(struct timer_list *t)
{
- struct worker_pool *pool = (void *)__pool;
+ struct worker_pool *pool = from_timer(pool, t, idle_timer);

spin_lock_irq(&pool->lock);

@@ -1879,9 +1879,9 @@ static void send_mayday(struct work_struct *work)
}
}

-static void pool_mayday_timeout(unsigned long __pool)
+static void pool_mayday_timeout(struct timer_list *t)
{
- struct worker_pool *pool = (void *)__pool;
+ struct worker_pool *pool = from_timer(pool, t, mayday_timer);
struct work_struct *work;

spin_lock_irq(&pool->lock);
@@ -3241,11 +3241,9 @@ static int init_worker_pool(struct worker_pool *pool)
INIT_LIST_HEAD(&pool->idle_list);
hash_init(pool->busy_hash);

- setup_deferrable_timer(&pool->idle_timer, idle_worker_timeout,
- (unsigned long)pool);
+ timer_setup(&pool->idle_timer, idle_worker_timeout, TIMER_DEFERRABLE);

- setup_timer(&pool->mayday_timer, pool_mayday_timeout,
- (unsigned long)pool);
+ timer_setup(&pool->mayday_timer, pool_mayday_timeout, 0);

mutex_init(&pool->manager_arb);
mutex_init(&pool->attach_mutex);