Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1712904 > unrolled thread

Re: [v3, 1/5] powerpc/mm: Ensure change_page_attr() doesn't invalidate pinned TLBs

Back to article view | Back to linux.kernel

This discussion starts older than the indexed window; earlier articles aren't shown. The article labeled Started by below is the oldest one visible, not the original post.

Contents

  Re: [v3, 1/5] powerpc/mm: Ensure change_page_attr() doesn't invalidate pinned TLBs Michael Ellerman <patch-notifications@ellerman.id.au> - 2017-08-16 14:30 +0200

#1712904 — Re: [v3, 1/5] powerpc/mm: Ensure change_page_attr() doesn't invalidate pinned TLBs

On Wed, 2017-08-02 at 13:51:01 UTC, Christophe Leroy wrote:
> __change_page_attr() uses flush_tlb_page().
> flush_tlb_page() uses tlbie instruction, which also invalidates
> pinned TLBs, which is not what we expect.
> 
> This patch modifies the implementation to use flush_tlb_kernel_range()
> instead. This will make use of tlbia which will preserve pinned TLBs.
> 
> Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>

Series applied to powerpc next, thanks.

https://git.kernel.org/powerpc/c/e611939fc8ec13387018df88083de7

cheers

[toc] | [standalone]

Back to top | Article view | linux.kernel

csiph-web