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authorStanislaw Gruszka <sgruszka@redhat.com>2009-07-29 12:15:26 +0200
committerIngo Molnar <mingo@elte.hu>2009-08-03 14:48:35 +0200
commit42c4ab41a176ee784c0f28c0b29025a8fc34f05a (patch)
tree370393a0e02faa7a6a7d211205b31ceb74880359 /include/linux/sched.h
parented680c4ad478d0fee9740f7d029087f181346564 (diff)
downloadop-kernel-dev-42c4ab41a176ee784c0f28c0b29025a8fc34f05a.zip
op-kernel-dev-42c4ab41a176ee784c0f28c0b29025a8fc34f05a.tar.gz
itimers: Merge ITIMER_VIRT and ITIMER_PROF
Both cpu itimers have same data flow in the few places, this patch make unification of code related with VIRT and PROF itimers. Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Acked-by: Thomas Gleixner <tglx@linutronix.de> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> LKML-Reference: <1248862529-6063-2-git-send-email-sgruszka@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/linux/sched.h')
-rw-r--r--include/linux/sched.h14
1 files changed, 11 insertions, 3 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 3ab08e4..3b3efad 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -470,6 +470,11 @@ struct pacct_struct {
unsigned long ac_minflt, ac_majflt;
};
+struct cpu_itimer {
+ cputime_t expires;
+ cputime_t incr;
+};
+
/**
* struct task_cputime - collected CPU time counts
* @utime: time spent in user mode, in &cputime_t units
@@ -564,9 +569,12 @@ struct signal_struct {
struct pid *leader_pid;
ktime_t it_real_incr;
- /* ITIMER_PROF and ITIMER_VIRTUAL timers for the process */
- cputime_t it_prof_expires, it_virt_expires;
- cputime_t it_prof_incr, it_virt_incr;
+ /*
+ * ITIMER_PROF and ITIMER_VIRTUAL timers for the process, we use
+ * CPUCLOCK_PROF and CPUCLOCK_VIRT for indexing array as these
+ * values are defined to 0 and 1 respectively
+ */
+ struct cpu_itimer it[2];
/*
* Thread group totals for process CPU timers.
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