Date: Fri, 7 Feb 2020 22:43:59 +0000 (UTC) From: Mateusz Guzik <mjg@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r357672 - head/sys/sys Message-ID: <202002072243.017MhxsS037776@repo.freebsd.org>
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Author: mjg Date: Fri Feb 7 22:43:58 2020 New Revision: 357672 URL: https://svnweb.freebsd.org/changeset/base/357672 Log: Add zpcpu_{set,add,sub}_protected. The _protected suffix follows counter(9). Modified: head/sys/sys/pcpu.h Modified: head/sys/sys/pcpu.h ============================================================================== --- head/sys/sys/pcpu.h Fri Feb 7 22:36:37 2020 (r357671) +++ head/sys/sys/pcpu.h Fri Feb 7 22:43:58 2020 (r357672) @@ -256,6 +256,24 @@ extern struct pcpu *cpuid_to_pcpu[]; _old; \ }) +#define zpcpu_set_protected(base, val) ({ \ + MPASS(curthread->td_critnest > 0); \ + __typeof(val) *_ptr = zpcpu_get(base); \ + *_ptr = (val); \ +}) + +#define zpcpu_add_protected(base, val) ({ \ + MPASS(curthread->td_critnest > 0); \ + __typeof(val) *_ptr = zpcpu_get(base); \ + *_ptr += (val); \ +}) + +#define zpcpu_sub_protected(base, val) ({ \ + MPASS(curthread->td_critnest > 0); \ + __typeof(val) *_ptr = zpcpu_get(base); \ + *_ptr -= (val); \ +}) + /* * Machine dependent callouts. cpu_pcpu_init() is responsible for * initializing machine dependent fields of struct pcpu, and
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