Date: Fri, 24 Feb 2017 16:06:28 +0100 From: Mateusz Guzik <mjguzik@gmail.com> To: Hans Petter Selasky <hselasky@FreeBSD.org> Cc: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: Re: svn commit: r314207 - head/sys/compat/linuxkpi/common/include/linux Message-ID: <20170224150628.GA19697@dft-labs.eu> In-Reply-To: <201702241440.v1OEeFJa095968@repo.freebsd.org> References: <201702241440.v1OEeFJa095968@repo.freebsd.org>
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On Fri, Feb 24, 2017 at 02:40:15PM +0000, Hans Petter Selasky wrote: > Author: hselasky > Date: Fri Feb 24 14:40:15 2017 > New Revision: 314207 > URL: https://svnweb.freebsd.org/changeset/base/314207 > > Log: > Implement srcu_dereference() macro in the LinuxKPI. > > MFC after: 1 week > Sponsored by: Mellanox Technologies > > Modified: > head/sys/compat/linuxkpi/common/include/linux/srcu.h > > Modified: head/sys/compat/linuxkpi/common/include/linux/srcu.h > ============================================================================== > --- head/sys/compat/linuxkpi/common/include/linux/srcu.h Fri Feb 24 14:37:55 2017 (r314206) > +++ head/sys/compat/linuxkpi/common/include/linux/srcu.h Fri Feb 24 14:40:15 2017 (r314207) > @@ -34,6 +34,8 @@ struct srcu_struct { > struct ck_epoch_record *ss_epoch_record; > }; > > +#define srcu_dereference(ptr,srcu) ((__typeof(*(ptr)) *)(ptr)) > + Should not this cast to volatile and read through that? -- Mateusz Guzik <mjguzik gmail.com>
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