From 310253514bbf179c5f82e20a7a4bbf07abc7f5ad Mon Sep 17 00:00:00 2001 From: Anshuman Khandual Date: Thu, 5 Apr 2018 16:22:08 -0700 Subject: [PATCH] mm/migrate: rename migration reason MR_CMA to MR_CONTIG_RANGE alloc_contig_range() initiates compaction and eventual migration for the purpose of either CMA or HugeTLB allocations. At present, the reason code remains the same MR_CMA for either of these cases. Let's make it MR_CONTIG_RANGE which will appropriately reflect the reason code in both these cases. Link: http://lkml.kernel.org/r/20180202091518.18798-1-khandual@linux.vnet.ibm.com Signed-off-by: Anshuman Khandual Acked-by: Michal Hocko Reviewed-by: Andrew Morton Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/powerpc/mm/mmu_context_iommu.c | 2 +- include/linux/migrate.h | 2 +- include/trace/events/migrate.h | 2 +- mm/page_alloc.c | 2 +- 4 files changed, 4 insertions(+), 4 deletions(-) diff --git a/arch/powerpc/mm/mmu_context_iommu.c b/arch/powerpc/mm/mmu_context_iommu.c index e0a2d8e806ed..9a8a084e4aba 100644 --- a/arch/powerpc/mm/mmu_context_iommu.c +++ b/arch/powerpc/mm/mmu_context_iommu.c @@ -112,7 +112,7 @@ static int mm_iommu_move_page_from_cma(struct page *page) put_page(page); /* Drop the gup reference */ ret = migrate_pages(&cma_migrate_pages, new_iommu_non_cma_page, - NULL, 0, MIGRATE_SYNC, MR_CMA); + NULL, 0, MIGRATE_SYNC, MR_CONTIG_RANGE); if (ret) { if (!list_empty(&cma_migrate_pages)) putback_movable_pages(&cma_migrate_pages); diff --git a/include/linux/migrate.h b/include/linux/migrate.h index a2246cf670ba..ab45f8a0d288 100644 --- a/include/linux/migrate.h +++ b/include/linux/migrate.h @@ -25,7 +25,7 @@ enum migrate_reason { MR_SYSCALL, /* also applies to cpusets */ MR_MEMPOLICY_MBIND, MR_NUMA_MISPLACED, - MR_CMA, + MR_CONTIG_RANGE, MR_TYPES }; diff --git a/include/trace/events/migrate.h b/include/trace/events/migrate.h index bcf4daccd6be..711372845945 100644 --- a/include/trace/events/migrate.h +++ b/include/trace/events/migrate.h @@ -20,7 +20,7 @@ EM( MR_SYSCALL, "syscall_or_cpuset") \ EM( MR_MEMPOLICY_MBIND, "mempolicy_mbind") \ EM( MR_NUMA_MISPLACED, "numa_misplaced") \ - EMe(MR_CMA, "cma") + EMe(MR_CONTIG_RANGE, "contig_range") /* * First define the enums in the above macros to be exported to userspace diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 4ea018263210..531d6acb0106 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -7591,7 +7591,7 @@ static int __alloc_contig_migrate_range(struct compact_control *cc, cc->nr_migratepages -= nr_reclaimed; ret = migrate_pages(&cc->migratepages, alloc_migrate_target, - NULL, 0, cc->mode, MR_CMA); + NULL, 0, cc->mode, MR_CONTIG_RANGE); } if (ret < 0) { putback_movable_pages(&cc->migratepages);