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Code Issues Releases Wiki Activity

workqueue: Use rcu_read_lock_any_held() instead of rcu_read_lock_held() 

The different flavors of RCU read critical sections have been unified. Let's
update the locking assertion macros accordingly to avoid requiring
unnecessary explicit rcu_read_[un]lock() calls.

Signed-off-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Lai Jiangshan <jiangshanlai@gmail.com>
This commit is contained in:
Tejun Heo 2024-02-20 19:36:13 -10:00
parent c7a40c49af
commit d355001fa9
1 changed files with 2 additions and 2 deletions
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4
kernel/workqueue.c
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@ -515,12 +515,12 @@ static void show_one_worker_pool(struct worker_pool *pool);
#include <trace/events/workqueue.h>
#define assert_rcu_or_pool_mutex() \
RCU_LOCKDEP_WARN(!rcu_read_lock_held() && \
RCU_LOCKDEP_WARN(!rcu_read_lock_any_held() && \
!lockdep_is_held(&wq_pool_mutex), \
"RCU or wq_pool_mutex should be held")
#define assert_rcu_or_wq_mutex_or_pool_mutex(wq) \
RCU_LOCKDEP_WARN(!rcu_read_lock_held() && \
RCU_LOCKDEP_WARN(!rcu_read_lock_any_held() && \
!lockdep_is_held(&wq->mutex) && \
!lockdep_is_held(&wq_pool_mutex), \
"RCU, wq->mutex or wq_pool_mutex should be held")