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| author | Petr Tesarik <ptesarik@suse.cz> | 2007-12-12 15:21:16 +0100 |
|---|---|---|
| committer | Tony Luck <tony.luck@intel.com> | 2008-02-08 12:00:54 -0800 |
| commit | 5aa92ffda1b6244b4a248df0b95c07d183ab96d2 (patch) | |
| tree | 8375f4960be7a53e4c313037807ff05f99ce1b98 /arch/ia64 | |
| parent | ad9e39c70f46c5e17b1ed5912e8693454fec1455 (diff) | |
| download | op-kernel-dev-5aa92ffda1b6244b4a248df0b95c07d183ab96d2.zip op-kernel-dev-5aa92ffda1b6244b4a248df0b95c07d183ab96d2.tar.gz | |
[IA64] Rename TIF_PERFMON_WORK back to TIF_NOTIFY_RESUME
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>
Diffstat (limited to 'arch/ia64')
| -rw-r--r-- | arch/ia64/kernel/perfmon.c | 21 | ||||
| -rw-r--r-- | arch/ia64/kernel/process.c | 9 |
2 files changed, 12 insertions, 18 deletions
diff --git a/arch/ia64/kernel/perfmon.c b/arch/ia64/kernel/perfmon.c index 78acd9f..f6b9971 100644 --- a/arch/ia64/kernel/perfmon.c +++ b/arch/ia64/kernel/perfmon.c @@ -586,21 +586,6 @@ pfm_put_task(struct 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) { SetPageReserved(vmalloc_to_page((void *)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 diff --git a/arch/ia64/kernel/process.c b/arch/ia64/kernel/process.c index 7377d32..5c9efe6 100644 --- a/arch/ia64/kernel/process.c +++ b/arch/ia64/kernel/process.c @@ -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) { |
