The ASSERT() at the top of csched2_context_saved() is completely
pointless, as the BUG_ON() just in front of it catches the same problem
already.
While at it remove a bogus space in the BUG_ON().
Signed-off-by: Juergen Gross <jgross@suse.com>
---
xen/common/sched/credit2.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/xen/common/sched/credit2.c b/xen/common/sched/credit2.c
index b965cd1c7b..78467b772c 100644
--- a/xen/common/sched/credit2.c
+++ b/xen/common/sched/credit2.c
@@ -2167,10 +2167,8 @@ csched2_context_saved(const struct scheduler *ops, struct sched_unit *unit)
s_time_t now = NOW();
LIST_HEAD(were_parked);
- BUG_ON( !is_idle_unit(unit) &&
- svc->rqd != c2rqd(ops, sched_unit_master(unit)));
- ASSERT(is_idle_unit(unit) ||
- svc->rqd == c2rqd(ops, sched_unit_master(unit)));
+ BUG_ON(!is_idle_unit(unit) &&
+ svc->rqd != c2rqd(ops, sched_unit_master(unit)));
/* This unit is now eligible to be put on the runqueue again */
__clear_bit(__CSFLAG_scheduled, &svc->flags);
--
2.16.4
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On Mon, 2020-02-10 at 17:45 +0100, Juergen Gross wrote: > The ASSERT() at the top of csched2_context_saved() is completely > pointless, as the BUG_ON() just in front of it catches the same > problem > already. > Yep, I went double checking and this is my fault. :-( Apparently, in ccf2ead7f52 ("xen: credit2: make the code less experimental"), for this specific case, I added the assert but forgot to remove the BUG_ON(). Thanks for noticing and acting on this. :-) TBH, though, considering the nature of the check, I'd rather keep the ASSERT() and kill the BUG_ON(). I can do the patch myself if you don't want to respin it that way. Thanks again and Regards -- Dario Faggioli, Ph.D http://about.me/dario.faggioli Virtualization Software Engineer SUSE Labs, SUSE https://www.suse.com/ ------------------------------------------------------------------- <<This happens because _I_ choose it to happen!>> (Raistlin Majere) _______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel
On 11.02.20 10:29, Dario Faggioli wrote: > On Mon, 2020-02-10 at 17:45 +0100, Juergen Gross wrote: >> The ASSERT() at the top of csched2_context_saved() is completely >> pointless, as the BUG_ON() just in front of it catches the same >> problem >> already. >> > Yep, I went double checking and this is my fault. :-( > > Apparently, in ccf2ead7f52 ("xen: credit2: make the code less > experimental"), for this specific case, I added the assert but forgot > to remove the BUG_ON(). > > Thanks for noticing and acting on this. :-) > > TBH, though, considering the nature of the check, I'd rather keep the > ASSERT() and kill the BUG_ON(). > > I can do the patch myself if you don't want to respin it that way. I'll respin. Juergen _______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel
On Tue, 2020-02-11 at 10:36 +0100, Jürgen Groß wrote: > On 11.02.20 10:29, Dario Faggioli wrote: > > > > TBH, though, considering the nature of the check, I'd rather keep > > the > > ASSERT() and kill the BUG_ON(). > > > > I can do the patch myself if you don't want to respin it that way. > > I'll respin. > Thanks! On an not so related note... I have that other patch of yours, the one about Credit2 runqueues on my list. Sorry it's taking a while to review it properly. I'll try to get to it ASAP. Regards -- Dario Faggioli, Ph.D http://about.me/dario.faggioli Virtualization Software Engineer SUSE Labs, SUSE https://www.suse.com/ ------------------------------------------------------------------- <<This happens because _I_ choose it to happen!>> (Raistlin Majere) _______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel
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