Commit f11cc076 authored by Davidlohr Bueso's avatar Davidlohr Bueso Committed by Ingo Molnar

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

This function was introduced by:

  150593bf ("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: default avatarDavidlohr Bueso <dbueso@suse.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: dave@stgolabs.net
Link: http://lkml.kernel.org/r/20170615023730.22827-1-dave@stgolabs.netSigned-off-by: default avatarIngo Molnar <mingo@kernel.org>
parent 902b3194
......@@ -95,8 +95,6 @@ static inline void put_task_struct(struct task_struct *t)
}
struct task_struct *task_rcu_dereference(struct task_struct **ptask);
struct task_struct *try_get_task_struct(struct task_struct **ptask);
#ifdef CONFIG_ARCH_WANTS_DYNAMIC_TASK_STRUCT
extern int arch_task_struct_size __read_mostly;
......
......@@ -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
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment