On Wednesday 20 May 2015 06:30 AM, Michael Neuling wrote: > On Wed, 2015-05-20 at 00:30 +0530, Shreyas B. Prabhu wrote: >> Doorbell can be used to cause ipi on cpus which are sibling threads on >> the same core. So icp_native_cause_ipi checks if the destination cpu >> is a sibling thread of the current cpu and uses doorbell in such cases. >> >> But while running with CONFIG_PREEMPT=y, since this section is >> preemtible, we can run into issues if after we check if the destination >> cpu is a sibling cpu, the task gets migrated from a sibling cpu to a >> cpu on another core. >> >> Fix this by using get_cpu()/ put_cpu() > > Thanks. Looks good and it's boots for me. > > Signed-off-by: Michael Neuling <mi...@neuling.org> > mikey, Thanks!
mpe, if this looks ok, can you please pick it up? _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
