lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Wed, 27 Jun 2012 11:42:47 +0200 From: Peter Zijlstra <a.p.zijlstra@...llo.nl> To: "Yan, Zheng" <zheng.z.yan@...el.com> Cc: eranian@...gle.com, mingo@...e.hu, andi@...stfloor.org, linux-kernel@...r.kernel.org Subject: Re: [PATCH 2/2] perf/x86: Uncore Filter support for SandyBridge-EP On Wed, 2012-06-27 at 15:09 +0800, Yan, Zheng wrote: > +static void snbep_uncore_put_constraint(struct intel_uncore_box *box, > + struct perf_event *event) > +{ > + struct intel_uncore_extra_reg *er; > + struct hw_perf_event_extra *reg1 = &event->hw.extra_reg; > + > + if (box->phys_id < 0 || !reg1->alloc) > + return; > + > + er = &box->shared_regs[reg1->idx]; > + atomic_sub(1, &er->ref); We have atomic_dec() for this ;-) > + reg1->alloc = 0; > +} -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists