linux-kernel - Re: [PATCH v5 03/38] mm: Add generic flush_icache

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Date:   Mon, 10 Jul 2023 15:23:50 -0700
From:   Randy Dunlap <rdunlap@...radead.org>
To:     "Matthew Wilcox (Oracle)" <willy@...radead.org>,
        Andrew Morton <akpm@...ux-foundation.org>
Cc:     linux-arch@...r.kernel.org, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org, Mike Rapoport <rppt@...nel.org>,
        Anshuman Khandual <anshuman.khandual@....com>
Subject: Re: [PATCH v5 03/38] mm: Add generic flush_icache_pages() and
 documentation



On 7/10/23 13:43, Matthew Wilcox (Oracle) wrote:
> -5) ``void update_mmu_cache(struct vm_area_struct *vma,
> -   unsigned long address, pte_t *ptep)``
> +5) ``void update_mmu_cache_range(struct vm_fault *vmf,
> +   struct vm_area_struct *vma, unsigned long address, pte_t *ptep,
> +   unsigned int nr)``
>  
> -	At the end of every page fault, this routine is invoked to
> -	tell the architecture specific code that a translation
> -	now exists at virtual address "address" for address space
> -	"vma->vm_mm", in the software page tables.
> +	At the end of every page fault, this routine is invoked to tell
> +	the architecture specific code that translations now exists

	                                                     exist

> +	in the software page tables for address space "vma->vm_mm"
> +	at virtual address "address" for "nr" consecutive pages.

-- 
~Randy