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sched/core: Drop the unused try_get_task_struct() helper function

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This function was introduced by:

  150593bf86 ("sched/api: Introduce task_rcu_dereference() and try_get_task_struct()")

... to allow easier usage of task_rcu_dereference(), however no users
were ever added. Drop the helper.

Signed-off-by: Davidlohr Bueso <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Oleg Nesterov <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: [email protected]
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
This commit is contained in:
Davidlohr Bueso 2017-06-14 19:37:30 -07:00 • committed by Ingo Molnar
commit f11cc0760b
2 changed files with 0 additions and 15 deletions
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13
kernel/exit.c
View file

@ -318,19 +318,6 @@ void rcuwait_wake_up(struct rcuwait *w)
rcu_read_unlock();
}
struct task_struct *try_get_task_struct(struct task_struct **ptask)
{
struct task_struct *task;
rcu_read_lock();
task = task_rcu_dereference(ptask);
if (task)
get_task_struct(task);
rcu_read_unlock();
return task;
}
/*
* Determine if a process group is "orphaned", according to the POSIX
* definition in 2.2.2.52. Orphaned process groups are not to be affected