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authorNaveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>2015-06-25 23:53:37 +0530
committerIngo Molnar <mingo@kernel.org>2015-07-04 10:04:30 +0200
commitf6db8347993256b58bd4746b0c4c5b935c32210d (patch)
tree07accf585bbf5c7cb5f167a11a4e713deabb6043 /kernel/sched/stats.h
parent407a2c720556e8e340e06f6a7174f5d6d80cf9ea (diff)
downloadlinux-f6db8347993256b58bd4746b0c4c5b935c32210d.tar.bz2
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/stats.h')
-rw-r--r--kernel/sched/stats.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/sched/stats.h b/kernel/sched/stats.h
index 077ebbd5e10f..b0fbc7632de5 100644
--- a/kernel/sched/stats.h
+++ b/kernel/sched/stats.h
@@ -47,7 +47,7 @@ rq_sched_info_depart(struct rq *rq, unsigned long long delta)
# define schedstat_set(var, val) do { } while (0)
#endif
-#if defined(CONFIG_SCHEDSTATS) || defined(CONFIG_TASK_DELAY_ACCT)
+#ifdef CONFIG_SCHED_INFO
static inline void sched_info_reset_dequeued(struct task_struct *t)
{
t->sched_info.last_queued = 0;
@@ -156,7 +156,7 @@ sched_info_switch(struct rq *rq,
#define sched_info_depart(rq, t) do { } while (0)
#define sched_info_arrive(rq, next) do { } while (0)
#define sched_info_switch(rq, t, next) do { } while (0)
-#endif /* CONFIG_SCHEDSTATS || CONFIG_TASK_DELAY_ACCT */
+#endif /* CONFIG_SCHED_INFO */
/*
* The following are functions that support scheduler-internal time accounting.