Commit d4829cd5 authored by Paul E. McKenney's avatar Paul E. McKenney Committed by Linus Torvalds
Browse files

[PATCH] remove get_task_struct_rcu()



The latest set of signal-RCU patches does not use get_task_struct_rcu().
Attached is a patch that removes it.
Signed-off-by: default avatar"Paul E. McKenney" <paulmck@us.ibm.com>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 2d89c929
......@@ -878,18 +878,6 @@ extern void free_task(struct task_struct *tsk);
extern void __put_task_struct(struct task_struct *tsk);
#define get_task_struct(tsk) do { atomic_inc(&(tsk)->usage); } while(0)
static inline int get_task_struct_rcu(struct task_struct *t)
{
int oldusage;
do {
oldusage = atomic_read(&t->usage);
if (oldusage == 0)
return 0;
} while (cmpxchg(&t->usage.counter, oldusage, oldusage+1) != oldusage);
return 1;
}
extern void __put_task_struct_cb(struct rcu_head *rhp);
static inline void put_task_struct(struct task_struct *t)
......
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