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| author | Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> | 2015-06-25 23:53:37 +0530 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2015-07-04 10:04:30 +0200 |
| commit | f6db8347993256b58bd4746b0c4c5b935c32210d (patch) | |
| tree | 07accf585bbf5c7cb5f167a11a4e713deabb6043 /kernel/sched/core.c | |
| parent | 407a2c720556e8e340e06f6a7174f5d6d80cf9ea (diff) | |
| download | lwn-f6db8347993256b58bd4746b0c4c5b935c32210d.tar.gz lwn-f6db8347993256b58bd4746b0c4c5b935c32210d.zip | |
sched/stat: Simplify the sched_info accounting dependency
Both CONFIG_SCHEDSTATS=y and CONFIG_TASK_DELAY_ACCT=y track task
sched_info, which results in ugly #if clauses.
Simplify the code by introducing a synthethic CONFIG_SCHED_INFO
switch, selected by both.
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Cc: Balbir Singh <bsingharora@gmail.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: a.p.zijlstra@chello.nl
Cc: ricklind@us.ibm.com
Link: http://lkml.kernel.org/r/8d19eef800811a94b0f91bcbeb27430a884d7433.1435255405.git.naveen.n.rao@linux.vnet.ibm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/sched/core.c')
| -rw-r--r-- | kernel/sched/core.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/sched/core.c b/kernel/sched/core.c index c86935a7f1f8..abb8785ed1ba 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -1975,7 +1975,7 @@ int sched_fork(unsigned long clone_flags, struct task_struct *p) set_task_cpu(p, cpu); raw_spin_unlock_irqrestore(&p->pi_lock, flags); -#if defined(CONFIG_SCHEDSTATS) || defined(CONFIG_TASK_DELAY_ACCT) +#ifdef CONFIG_SCHED_INFO if (likely(sched_info_on())) memset(&p->sched_info, 0, sizeof(p->sched_info)); #endif |