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sched/cputime: Rename vtime fields

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The current "snapshot" based naming on vtime fields suggests we record
some past event but that's a low level picture of their actual purpose
which comes out blurry. The real point of these fields is to run a basic
state machine that tracks down cputime entry while switching between
contexts.

So lets reflect that with more meaningful names.

Tested-by: Luiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Rik van Riel <riel@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Wanpeng Li <kernellwp@gmail.com>
Link: http://lkml.kernel.org/r/1498756511-11714-4-git-send-email-fweisbec@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Frederic Weisbecker 2017-06-29 19:15:09 +02:00 • committed by Ingo Molnar
parent 9fa57cf5a5
commit 60a9ce57e7
4 changed files with 21 additions and 21 deletions
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4
kernel/fork.c
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@ -1638,8 +1638,8 @@ static __latent_entropy struct task_struct *copy_process(
#ifdef CONFIG_VIRT_CPU_ACCOUNTING_GEN
seqcount_init(&p->vtime_seqcount);
p->vtime_snap = 0;
p->vtime_snap_whence = VTIME_INACTIVE;
p->vtime_starttime = 0;
p->vtime_state = VTIME_INACTIVE;
#endif
#if defined(SPLIT_RSS_COUNTING)