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SubjectRe: [PATCH] cputime_t patches broke RLIMIT_CPU
> So would it not be nicer to just keep everything in seconds instead? 

Yes, that's how it was done before. The patch I just posted was intended
to fix the apparent typo without getting any deeper. Below is an untested
alternate patch to restore the old behavior under the new macro regime.

> Alternatively, seriously fix "secs_to_cputime()" to do the proper thing?
> Or did I miss a patch and you already did that?

I wasn't really on a cputime-cleanup rampage, just fixing the obvious bugs
I saw. I hope Martin would like to do some cleanup.


--- linux-2.6/kernel/sched.c
+++ linux-2.6/kernel/sched.c
@@ -2299,17 +2325,17 @@ static void account_it_prof(struct task_
static void check_rlimit(struct task_struct *p, cputime_t cputime)
cputime_t total, tmp;
+ unsigned long secs;

total = cputime_add(p->utime, p->stime);
- tmp = jiffies_to_cputime(p->signal->rlim[RLIMIT_CPU].rlim_cur);
- if (unlikely(cputime_gt(total, tmp))) {
+ secs = cputime_to_secs(total);
+ if (unlikely(secs >= p->signal->rlim[RLIMIT_CPU].rlim_cur)) {
/* Send SIGXCPU every second. */
tmp = cputime_sub(total, cputime);
- if (cputime_to_secs(tmp) < cputime_to_secs(total))
+ if (cputime_to_secs(tmp) < secs)
send_sig(SIGXCPU, p, 1);
/* and SIGKILL when we go over max.. */
- tmp = jiffies_to_cputime(p->signal->rlim[RLIMIT_CPU].rlim_max);
- if (cputime_gt(total, tmp))
+ if (secs >= p->signal->rlim[RLIMIT_CPU].rlim_max)
send_sig(SIGKILL, p, 1);
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