On 28-01-16, 12:55, Shilpasri G Bhat wrote: > cpu_to_chip_id() does a DT walk through to find out the chip id by > taking a contended device tree lock. This adds an unnecessary overhead > in a hot path. So instead of calling cpu_to_chip_id() everytime cache > the chip ids for all cores in the array 'core_to_chip_map' and use it > in the hotpath. > > Reported-by: Anton Blanchard <an...@samba.org> > Signed-off-by: Shilpasri G Bhat <shilpa.b...@linux.vnet.ibm.com> > --- > Changes from v6: > - Minor changes to move the code 'cpumask_copy()' after 'core_to_chip_map' > is allocated. > - Move 'kfree(chips)' to a separate patch.
See, you weren't that bad :) Just that you missed saying that individual patches contain version-log in cover-letter :) Acked-by: Viresh Kumar <viresh.ku...@linaro.org> -- viresh _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
