[PATCH v4 1/3] ioremap: Update pgtable free interfaces with addr

Kani, Toshi toshi.kani at hpe.com
Tue Mar 20 15:58:18 PDT 2018


On Tue, 2018-03-20 at 17:15 +0530, Chintan Pandya wrote:
> This patch ("mm/vmalloc: Add interfaces to free unmapped
> page table") adds following 2 interfaces to free the page
> table in case we implement huge mapping.
> 
> pud_free_pmd_page() and pmd_free_pte_page()
> 
> Some architectures (like arm64) needs to do proper TLB
> maintanance after updating pagetable entry even in map.
> Why ? Read this,
> https://patchwork.kernel.org/patch/10134581/
> 
> Pass 'addr' in these interfaces so that proper TLB ops
> can be performed.
> 
> Signed-off-by: Chintan Pandya <cpandya at codeaurora.org>

Thanks for the update.  The change looks good.

Reviewed-by: Toshi Kani <toshi.kani at hpe.com>

-Toshi


More information about the linux-arm-kernel mailing list