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authorAnshuman Khandual <khandual@linux.vnet.ibm.com>2018-04-05 16:22:08 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2018-04-05 21:36:24 -0700
commit310253514bbf179c5f82e20a7a4bbf07abc7f5ad (patch)
tree191cc11fdd6ffd830965186d1c634c4c7c81b517
parent57a7702b12bc610393bf7764d25183392344ee92 (diff)
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 <khandual@linux.vnet.ibm.com> Acked-by: Michal Hocko <mhocko@suse.com> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--arch/powerpc/mm/mmu_context_iommu.c2
-rw-r--r--include/linux/migrate.h2
-rw-r--r--include/trace/events/migrate.h2
-rw-r--r--mm/page_alloc.c2
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);