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authorRalph Campbell <rcampbell@nvidia.com>2020-01-30 22:14:38 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2020-01-31 10:30:39 -0800
commit872ea707511ad43afe202f401ccb8de01e2b2a3b (patch)
tree1e001a1e23fbaef0924f81ce7f55b769a22042a2 /mm
parentafb971729a0bca7676606013e913025bc5619301 (diff)
mm/migrate: remove useless mask of start address
Addresses passed to walk_page_range() callback functions are already page aligned and don't need to be masked with PAGE_MASK. Link: http://lkml.kernel.org/r/20200107211208.24595-2-rcampbell@nvidia.com Signed-off-by: Ralph Campbell <rcampbell@nvidia.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Cc: Jerome Glisse <jglisse@redhat.com> Cc: John Hubbard <jhubbard@nvidia.com> Cc: Jason Gunthorpe <jgg@mellanox.com> Cc: Bharata B Rao <bharata@linux.ibm.com> Cc: Michal Hocko <mhocko@kernel.org> Cc: Chris Down <chris@chrisdown.name> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
-rw-r--r--mm/migrate.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/mm/migrate.c b/mm/migrate.c
index b3b5d3bf0aab..0c98c9f1d778 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -2156,7 +2156,7 @@ static int migrate_vma_collect_hole(unsigned long start,
struct migrate_vma *migrate = walk->private;
unsigned long addr;
- for (addr = start & PAGE_MASK; addr < end; addr += PAGE_SIZE) {
+ for (addr = start; addr < end; addr += PAGE_SIZE) {
migrate->src[migrate->npages] = MIGRATE_PFN_MIGRATE;
migrate->dst[migrate->npages] = 0;
migrate->npages++;
@@ -2173,7 +2173,7 @@ static int migrate_vma_collect_skip(unsigned long start,
struct migrate_vma *migrate = walk->private;
unsigned long addr;
- for (addr = start & PAGE_MASK; addr < end; addr += PAGE_SIZE) {
+ for (addr = start; addr < end; addr += PAGE_SIZE) {
migrate->dst[migrate->npages] = 0;
migrate->src[migrate->npages++] = 0;
}