diff options
| author | Ralph Campbell <rcampbell@nvidia.com> | 2020-01-30 22:14:38 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-01-31 10:30:39 -0800 |
| commit | 872ea707511ad43afe202f401ccb8de01e2b2a3b (patch) | |
| tree | 1e001a1e23fbaef0924f81ce7f55b769a22042a2 /mm | |
| parent | afb971729a0bca7676606013e913025bc5619301 (diff) | |
| download | lwn-872ea707511ad43afe202f401ccb8de01e2b2a3b.tar.gz lwn-872ea707511ad43afe202f401ccb8de01e2b2a3b.zip | |
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.c | 4 |
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; } |