函数逻辑报告 |
Source Code:ipc\util.h |
Create Date:2022-07-27 18:14:10 |
Last Modify:2022-05-20 10:36:20 | Copyright©Brick |
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函数名称:ipc_lock_object
函数原型:static inline void ipc_lock_object(struct kern_ipc_perm *perm)
返回类型:void
参数:
类型 | 参数 | 名称 |
---|---|---|
struct kern_ipc_perm * | perm |
209 | 加自旋锁 |
名称 | 描述 |
---|---|
ipc_findkey | pc_findkey - find a key in an ipc identifier set*@ids: ipc identifier set*@key: key to find* Returns the locked pointer to the ipc structure if found or NULL* otherwise. If key is found ipc points to the owning ipc structure* Called with writer ipc_ids |
sysvipc_find_ipc | This routine locks the ipc structure found at least at position pos. |
msgctl_down | This function handles some msgctl commands which require the rwsem* to be held in write mode.* NOTE: no locks must be held, the rwsem is taken inside this function. |
msgctl_stat | |
do_msgsnd | |
do_msgrcv | |
sem_lock | If the request contains only one semaphore operation, and there are* no complex transactions pending, lock only the semaphore involved |
semctl_stat | |
shm_lock | shm_lock_(check_) routines are called in the paths where the rwsem* is not necessarily held. |
shm_lock_by_ptr | |
shmctl_down | This function handles some shmctl commands which require the rwsem* to be held in write mode.* NOTE: no locks must be held, the rwsem is taken inside this function. |
shmctl_stat | |
shmctl_do_lock | |
do_shmat | Fix shmaddr, allocate descriptor, map shm, add attach descriptor to lists.* NOTE! Despite the name, this is NOT a direct system call entrypoint. The* "raddr" thing points to kernel space, and there has to be a wrapper around* this. |
free_ipcs | _ipcs - free all ipcs of one type*@ns: the namespace to remove the ipcs from*@ids: the table of ipcs to free*@free: the function called to free each individual ipc* Called for each kind of ipc when an ipc_namespace exits. |
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