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[IA64] Rename TIF_PERFMON_WORK back to TIF_NOTIFY_RESUME

Telusuri Sumber 
Since the RSE synchronization will need a TIF_ flag, but all

work-to-be-done bits are already used, so we have to multiplex
TIF_NOTIFY_RESUME again.

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Petr Tesarik <ptesarik@suse.cz>
Signed-off-by: Tony Luck <tony.luck@intel.com>
This commit is contained in:
Petr Tesarik
2007-12-12 15:21:16 +01:00
committed by Tony Luck
orang tua ad9e39c70f
melakukan 5aa92ffda1
3 mengubah file dengan 18 tambahan dan 21 penghapusan
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21
arch/ia64/kernel/perfmon.c
Melihat File

@@ -585,21 +585,6 @@ pfm_put_task(struct task_struct *task)
if (task != current) put_task_struct(task);
}
static inline void
pfm_set_task_notify(struct task_struct *task)
{
struct thread_info *info;
info = (struct thread_info *) ((char *) task + IA64_TASK_SIZE);
set_bit(TIF_PERFMON_WORK, &info->flags);
}
static inline void
pfm_clear_task_notify(void)
{
clear_thread_flag(TIF_PERFMON_WORK);
}
static inline void
pfm_reserve_page(unsigned long a)
{
@@ -3724,7 +3709,7 @@ pfm_restart(pfm_context_t *ctx, void *arg, int count, struct pt_regs *regs)
PFM_SET_WORK_PENDING(task, 1);
pfm_set_task_notify(task);
tsk_set_notify_resume(task);
/*
* XXX: send reschedule if task runs on another CPU
@@ -5082,7 +5067,7 @@ pfm_handle_work(void)
PFM_SET_WORK_PENDING(current, 0);
pfm_clear_task_notify();
tsk_clear_notify_resume(current);
regs = task_pt_regs(current);
@@ -5450,7 +5435,7 @@ pfm_overflow_handler(struct task_struct *task, pfm_context_t *ctx, u64 pmc0, str
* when coming from ctxsw, current still points to the
* previous task, therefore we must work with task and not current.
*/
pfm_set_task_notify(task);
tsk_set_notify_resume(task);
}
/*
* defer until state is changed (shorten spin window). the context is locked

9
arch/ia64/kernel/process.c
Melihat File

@@ -157,6 +157,15 @@ show_regs (struct pt_regs *regs)
show_stack(NULL, NULL);
}
void tsk_clear_notify_resume(struct task_struct *tsk)
{
#ifdef CONFIG_PERFMON
if (tsk->thread.pfm_needs_checking)
return;
#endif
clear_ti_thread_flag(task_thread_info(tsk), TIF_NOTIFY_RESUME);
}
void
do_notify_resume_user (sigset_t *unused, struct sigscratch *scr, long in_syscall)
{