On 05/12/2016 19:17, Stefano Stabellini wrote: > On Mon, 5 Dec 2016, Andrew Cooper wrote: >> None of these barriers serve any purpose, as they are not synchronising with >> any anything on remote CPUs. >> >> Signed-off-by: Andrew Cooper <andrew.coop...@citrix.com> >> --- >> CC: Jan Beulich <jbeul...@suse.com> >> CC: Stefano Stabellini <sstabell...@kernel.org> >> CC: Julien Grall <julien.gr...@arm.com> >> >> Restricting to just the $ARCH maintainers, as this is a project-wide sweep. >> >> Julien/Stefano: I think the ARM smpboot inhereted the erronious barrier usage >> from x86, but I don't know whether further development has gained a >> dependence >> on them. > We turned them into smp_wmb already (kudos to IanC).
Right, but the entire point I am trying to argue is that they are not needed in the first place. ~Andrew _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org https://lists.xen.org/xen-devel
