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s390: convert release_thread() into a static inline function

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release_thread() is an empty function that gets called on every task
exit. Move the function to a header file and force inlining of it, so
that the compiler can optimize it away instead of generating a
pointless function call.

Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Heiko Carstens
2017-09-11 11:24:22 +02:00
committed by Martin Schwidefsky
parent 9cd6681cb1
commit 8076428f0c
2 changed files with 1 additions and 5 deletions
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2
arch/s390/include/asm/processor.h
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@@ -218,7 +218,7 @@ void show_registers(struct pt_regs *regs);
void show_cacheinfo(struct seq_file *m); void show_cacheinfo(struct seq_file *m);
/* Free all resources held by a thread. */ /* Free all resources held by a thread. */
extern void release_thread(struct task_struct *); static inline void release_thread(struct task_struct *tsk) { }
/* Free guarded storage control block for current */ /* Free guarded storage control block for current */
void exit_thread_gs(void); void exit_thread_gs(void);

4
arch/s390/kernel/process.c
View File

@@ -58,10 +58,6 @@ void flush_thread(void)
{ {
} }
void release_thread(struct task_struct *dead_task)
{
}
void arch_release_task_struct(struct task_struct *tsk) void arch_release_task_struct(struct task_struct *tsk)
{ {
} }