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s390/runtime instrumentation: simplify task exit handling

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Free data structures required for runtime instrumentation from
arch_release_task_struct(). This allows to simplify the code a bit,
and also makes the semantics a bit easier: arch_release_task_struct()
is never called from the task that is being removed.

In addition this allows to get rid of exit_thread() in a later patch.

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 d6e646ad7c
commit 8d9047f8b9
3 changed files with 20 additions and 19 deletions
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4
arch/s390/include/asm/runtime_instr.h
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@@ -85,6 +85,8 @@ static inline void restore_ri_cb(struct runtime_instr_cb *cb_next,
load_runtime_instr_cb(&runtime_instr_empty_cb);
}
void exit_thread_runtime_instr(void);
struct task_struct;
void runtime_instr_release(struct task_struct *tsk);
#endif /* _RUNTIME_INSTR_H */