posix-timers: Noralize good_sigevent

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In good_sigevent directly compute the default return value as
"task_tgid(current)".  This is exactly the same as
"task_pid(current->group_leader)" but written more clearly.

In the thread case first compute the thread's pid.  Then veify that
attached to that pid is a thread of the current thread group.

This has the net effect of making the code a little clearer, and
making it obvious that posix timers never look up a process by a the
pid of a thread.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>

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Eric W. Biederman 2018-07-21 00:00:29 -05:00

parent 019191342f

commit 2118e1f53f

1 changed files with 5 additions and 3 deletions

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kernel/time/posix-timers.c

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