Messages in this thread | | | Subject | Re: [PATCH 0/2] Use named address spaces for percpu data | From | Richard Henderson <> | Date | Wed, 12 Sep 2018 08:08:01 -0700 |
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On 09/12/2018 07:44 AM, Matthew Wilcox wrote: > rth wrote a patch back in 2016 that uses gcc's address space machinery > to improve code generation for percpu accesses. Ingo asked for some > minor changes to be made, but Richard didn't respond. While looking at > something related, I came across them, and asked Richard's permission > to resurrect and resend the patch, with the changes Ingo asked for at > the time. > > The important information about why we want these patch is in 1/2. > > Richard Henderson (2): > x86: Use named address spaces in asm/percpu.h > x86: Enable named address spaces for percpu data > > arch/x86/include/asm/percpu.h | 147 ++++++++++++++++++++-------------- > 1 file changed, 88 insertions(+), 59 deletions(-)
Thanks for resurrecting this, Willy. I'd totally forgotten about it. The adjustments you made look fine.
r~
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