Hi, This series re-enables contiguous hugepage support for arm64. Support for contiguous hugepages is useful on systems where the PMD hugepage size is too large (512MB hugepage when using 64k page granule) and contiguous hugepages can be used to provide reasonable hugepage sizes to the user. Previous postings can be found at [0], [1], [4], [5]. The patches can be split as * Patches 1-3, 9 cleanups and improvements * Patch 4 addresses the break-before-make requirement of the architecture for contiguous hugepages. * Patch 5-7 add support for handling swap entries for contiguous pte hugepages. * Patch 8 enables contiguous hugepage support for arm64 All the dependent series ([2], [3]) for enabling contiguous hugepage support have been merged in the previous cycle. Additionally, a patch to clarify the semantics of huge_pte_offset() in generic code[6] is currently in the -mm tree. The patches are based on v4.13-rc3. If there are no further comments please consider merging for the next release cycle. Thanks, Punit [0] https://www.spinics.net/lists/arm-kernel/msg570422.html [1] http://lists.infradead.org/pipermail/linux-arm-kernel/2017-March/497027.html [2] https://www.spinics.net/lists/arm-kernel/msg581657.html [3] https://www.spinics.net/lists/arm-kernel/msg583342.html [4] https://www.spinics.net/lists/arm-kernel/msg583367.html [5] https://www.spinics.net/lists/arm-kernel/msg582758.html [6] https://lkml.org/lkml/2017/7/25/536 Changes v4 -> v5 * Rebased on v4.13-rc3 Changes v3 -> v4 * Moved Patches 2 and 4 to [3] due to dependencies Changes v2 -> v3 * Rebased on v4.12-rc2 * Included swap related fixes in this series * Enable contiguous pte hugepages Changes v1 -> v2: * Marked patch 2 for stable * Fixed comment issues in patch 7 * Added tags Punit Agrawal (4): arm64: hugetlb: Handle swap entries in huge_pte_offset() for contiguous hugepages arm64: hugetlb: Override huge_pte_clear() to support contiguous hugepages arm64: hugetlb: Override set_huge_swap_pte_at() to support contiguous hugepages arm64: Re-enable support for contiguous hugepages Steve Capper (5): arm64: hugetlb: set_huge_pte_at Add WARN_ON on !pte_present arm64: hugetlb: Introduce pte_pgprot helper arm64: hugetlb: Spring clean huge pte accessors arm64: hugetlb: Add break-before-make logic for contiguous entries arm64: hugetlb: Cleanup setup_hugepagesz arch/arm64/include/asm/hugetlb.h | 9 +- arch/arm64/mm/hugetlbpage.c | 287 ++++++++++++++++++++++++++++----------- 2 files changed, 213 insertions(+), 83 deletions(-) -- 2.11.0 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>
