Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\locking\rwsem.c Create Date:2022-07-28 09:48:33
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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Name:down_read_non_owner

Proto:void down_read_non_owner(struct rw_semaphore *sem)

Type:void

Parameter:

TypeParameterName
struct rw_semaphore *sem
1621  might_sleep()
1622  lock for reading
1623  The task_struct pointer of the last owning reader will be left in* the owner field.* Note that the owner value just indicates the task has owned the rwsem* previously, it may not be the real owner or one of the real owners