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Groups > linux.kernel > #1223323
| From | Julian Anastasov <ja@ssi.bg> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH] ipvs:Fix locking requirements in the function ip_vs_unlink_service |
| Date | 2015-09-12 08:30 +0200 |
| Message-ID | <q7MtX-ND-1@gated-at.bofh.it> (permalink) |
| References | <q7MtY-ND-3@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
Hello,
On Sat, 12 Sep 2015, Nicholas Krause wrote:
> This fixes locking requirements in the function ip_vs_unlink_service
> to properly use bottom half spinlocking around the call to the function
> __ip_vs_del_service in order to meet the locking that this paricular
> function requires as stated in it's comments related to locking.
> + spin_lock_bh(&svc->sched_lock);
> __ip_vs_del_service(svc, cleanup);
> + spin_unlock_bh(&svc->sched_lock);
BH locking is not needed anymore. Also, sched_lock is
used by schedulers to protect only access to svc->sched_data
fields.
It seems the comment is outdated after
commit ceec4c381681 ("ipvs: convert services to rcu").
Regards
--
Julian Anastasov <ja@ssi.bg>
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Re: [PATCH] ipvs:Fix locking requirements in the function ip_vs_unlink_service Julian Anastasov <ja@ssi.bg> - 2015-09-12 08:30 +0200 Re: [PATCH] ipvs:Fix locking requirements in the function ip_vs_unlink_service Julian Anastasov <ja@ssi.bg> - 2015-09-12 20:40 +0200
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