On 01/16/2019 12:40 PM, Christophe Leroy wrote: > > > Le 16/01/2019 à 07:21, Anshuman Khandual a écrit : >> All architectures have been defining their own PGALLOC_GFP as (GFP_KERNEL | >> __GFP_ZERO) and using it for allocating page table pages. This causes some >> code duplication which can be easily avoided. GFP_KERNEL allocated and >> cleared out pages (__GFP_ZERO) are required for page tables on any given >> architecture. This creates a new generic GFP flag flag which can be used >> for any page table page allocation. Does not cause any functional change. >> >> GFP_PGTABLE is being added into include/asm-generic/pgtable.h which is the >> generic page tabe header just to prevent it's potential misuse as a general >> allocation flag if included in include/linux/gfp.h. >> >> Signed-off-by: Anshuman Khandual <anshuman.khandual@xxxxxxx> >> --- >> Build tested on arm, arm64, powerpc, powerpc64le and x86. >> Boot tested on arm64 and x86. >> >> Changes in V2: >> >> - Moved GFP_PGTABLE into include/asm-generic/pgtable.h >> - On X86 added __GFP_ACCOUNT into GFP_PGTABLE at various places >> - Replaced possible flags on riscv and nds32 with GFP_PGTABLE > > Could also replace the flags in arch/powerpc/include/asm/nohash/64/pgalloc.h with GFP_PGTABLE in pte_alloc_one_kernel() and pte_alloc_one() Sure will do.
