Re: [PATCH V4 00/26] mm/mmap: Drop __SXXX/__PXXX macros from across platforms
From: Christoph Hellwig <hch@infradead.org>
Date: 2022-06-24 05:12:44
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linux-alpha, linux-m68k, linux-mips, linux-mm, linux-riscv, linux-s390, linux-sh, linux-um, linuxppc-dev, lkml, sparclinux
On Fri, Jun 24, 2022 at 10:13:13AM +0530, Anshuman Khandual wrote:
vm_get_page_prot(), in order for it to be reused on platforms that do not require custom implementation. Finally, ARCH_HAS_VM_GET_PAGE_PROT can just be dropped, as all platforms now define and export vm_get_page_prot(), via looking up a private and static protection_map[] array. protection_map[] data type is the following for all platforms without deviation (except the powerpc one which is shared between 32 and 64 bit platforms), keeping it unchanged for now. static pgprot_t protection_map[16] __ro_after_init
On most architectures this should be const now, only very few ever modify it. _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel