The intention here is to set the same array element in src and dst.
Switch the order of these lines so that migrate->npages is only
incremented after we've used it.
Fixes: 8315ada7f095 ("mm/migrate: allow migrate_vma() to alloc new page on empty entry")
Cc: Jérôme Glisse <jglisse@xxxxxxxxxx>
Signed-off-by: Reza Arbab <arbab@xxxxxxxxxxxxxxxxxx>
---
mm/migrate.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/migrate.c b/mm/migrate.c
index dea0ceb..c4546cc 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -2146,8 +2146,8 @@ static int migrate_vma_collect_hole(unsigned long start,
unsigned long addr;
for (addr = start & PAGE_MASK; addr < end; addr += PAGE_SIZE) {
- migrate->src[migrate->npages++] = MIGRATE_PFN_MIGRATE;
migrate->dst[migrate->npages] = 0;
+ migrate->src[migrate->npages++] = MIGRATE_PFN_MIGRATE;
migrate->cpages++;
}
--
1.8.3.1
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