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| author | Frederic Weisbecker <fweisbec@gmail.com> | 2012-11-14 02:51:06 +0400 |
|---|---|---|
| committer | Frederic Weisbecker <fweisbec@gmail.com> | 2012-11-19 19:41:21 +0400 |
| commit | bcebdf846522056a84ba0b0cba5f5413868c9394 (patch) | |
| tree | 76e007a63351abe84a9713e3b182463c230d1053 /arch/powerpc | |
| parent | fd25b4c2f226de818e1d2b71e3e681d28bcaf5ba (diff) | |
| download | linux-bcebdf846522056a84ba0b0cba5f5413868c9394.tar.xz | |
vtime: Explicitly account pending user time on process tick
All vtime implementations just flush the user time on process
tick. Consolidate that in generic code by calling a user time
accounting helper. This avoids an indirect call in ia64 and
prepare to also consolidate vtime context switch code.
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Reviewed-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/kernel/time.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c index ce4cb772dc78..a667aaf85846 100644 --- a/arch/powerpc/kernel/time.c +++ b/arch/powerpc/kernel/time.c @@ -355,15 +355,15 @@ void vtime_account_idle(struct task_struct *tsk) } /* - * Transfer the user and system times accumulated in the paca - * by the exception entry and exit code to the generic process - * user and system time records. + * Transfer the user time accumulated in the paca + * by the exception entry and exit code to the generic + * process user time records. * Must be called with interrupts disabled. - * Assumes that vtime_account() has been called recently - * (i.e. since the last entry from usermode) so that + * Assumes that vtime_account_system/idle() has been called + * recently (i.e. since the last entry from usermode) so that * get_paca()->user_time_scaled is up to date. */ -void account_process_tick(struct task_struct *tsk, int user_tick) +void vtime_account_user(struct task_struct *tsk) { cputime_t utime, utimescaled; @@ -378,7 +378,7 @@ void account_process_tick(struct task_struct *tsk, int user_tick) void vtime_task_switch(struct task_struct *prev) { vtime_account(prev); - account_process_tick(prev, 0); + vtime_account_user(prev); } #else /* ! CONFIG_VIRT_CPU_ACCOUNTING */ |