[CC linux-mm for inclusion in -mm tree] In order to reduce copy/paste of functions across architectures and then make riscv hugetlb port (and future ports) simpler and smaller, this patchset intends to factorize the numerous hugetlb primitives that are defined across all the architectures. Except for prepare_hugepage_range, this patchset moves the versions that are just pass-through to standard pte primitives into asm-generic/hugetlb.h by using the same #ifdef semantic that can be found in asm-generic/pgtable.h, i.e. __HAVE_ARCH_***. s390 architecture has not been tackled in this serie since it does not use asm-generic/hugetlb.h at all. powerpc could be factorized a bit more (cf huge_ptep_set_wrprotect). This patchset has been compiled on all addressed architectures with success (except for parisc, but the problem does not come from this series). Tested-by: Helge Deller <deller@xxxxxx> # parisc Acked-by: Paul Burton <paul.burton@xxxxxxxx> # MIPS parts Changelog: v5: As suggested by Mike Kravetz, no need to move the #include <asm-generic/hugetlb.h> for arm and x86 architectures, let it live at the top of the file. v4: Fix powerpc build error due to misplacing of #include <asm-generic/hugetlb.h> outside of #ifdef CONFIG_HUGETLB_PAGE, as pointed by Christophe Leroy. v1, v2, v3: Same version, just problems with email provider and misuse of --batch-size option of git send-email Alexandre Ghiti (11): hugetlb: Harmonize hugetlb.h arch specific defines with pgtable.h hugetlb: Introduce generic version of hugetlb_free_pgd_range hugetlb: Introduce generic version of set_huge_pte_at hugetlb: Introduce generic version of huge_ptep_get_and_clear hugetlb: Introduce generic version of huge_ptep_clear_flush hugetlb: Introduce generic version of huge_pte_none hugetlb: Introduce generic version of huge_pte_wrprotect hugetlb: Introduce generic version of prepare_hugepage_range hugetlb: Introduce generic version of huge_ptep_set_wrprotect hugetlb: Introduce generic version of huge_ptep_set_access_flags hugetlb: Introduce generic version of huge_ptep_get arch/arm/include/asm/hugetlb-3level.h | 32 +--------- arch/arm/include/asm/hugetlb.h | 30 ---------- arch/arm64/include/asm/hugetlb.h | 39 +++--------- arch/ia64/include/asm/hugetlb.h | 47 ++------------- arch/mips/include/asm/hugetlb.h | 40 +++---------- arch/parisc/include/asm/hugetlb.h | 33 +++-------- arch/powerpc/include/asm/book3s/32/pgtable.h | 2 + arch/powerpc/include/asm/book3s/64/pgtable.h | 1 + arch/powerpc/include/asm/hugetlb.h | 43 ++------------ arch/powerpc/include/asm/nohash/32/pgtable.h | 2 + arch/powerpc/include/asm/nohash/64/pgtable.h | 1 + arch/sh/include/asm/hugetlb.h | 54 ++--------------- arch/sparc/include/asm/hugetlb.h | 40 +++---------- arch/x86/include/asm/hugetlb.h | 69 ---------------------- include/asm-generic/hugetlb.h | 88 +++++++++++++++++++++++++++- 15 files changed, 139 insertions(+), 382 deletions(-) -- 2.16.2
