Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:ipc\msg.c Create Date:2022-07-28 16:42:09
Last Modify:2020-03-17 22:56:56 Copyright©Brick
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Annotation kernel can get tool activityDownload SCCTChinese

Name:pipelined_send

Proto:static inline int pipelined_send(struct msg_queue *msq, struct msg_msg *msg, struct wake_q_head *wake_q)

Type:int

Parameter:

TypeParameterName
struct msg_queue *msq
struct msg_msg *msg
struct wake_q_head *wake_q
795  If testmsg(msg, r_msgtype, r_mode) && Not security_msg_queue_msgrcv( & q_perm, msg, r_tsk, r_msgtype, r_mode) Then
799  deletes entry from list
800  If r_maxsize < message text size Then
801  wake_q_add() - queue a wakeup for 'later' waking
802  WRITE_ONCE(r_msg, ERR_PTR( - E2BIG))
803  Else
804  ipc_update_pid( & last receive pid , task_pid(r_tsk))
805  last msgrcv time = ktime_get_real_seconds - Get the seconds portion of CLOCK_REALTIME* Returns the wall clock seconds since 1970. This replaces the* get_seconds() interface which is not y2038 safe on 32bit systems.
807  wake_q_add() - queue a wakeup for 'later' waking
808  WRITE_ONCE(r_msg, msg)
809  Return 1
814  Return 0
Caller
NameDescribe
do_msgsnd