mm/sparse.c: fix ALIGN() without power of 2 in sparse_buffer_alloc()

The size argument passed into sparse_buffer_alloc() has already been
aligned with PAGE_SIZE or PMD_SIZE.

If the size after aligned is not power of 2 (e.g.  0x480000), the
PTR_ALIGN() will return wrong value.  Use roundup to round sparsemap_buf
up to next multiple of size.

Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Lecopzer Chen <[email protected]>
Signed-off-by: Mark-PK Tsai <[email protected]>
Cc: YJ Chiang <[email protected]>
Cc: Lecopzer Chen <[email protected]>
Cc: Pavel Tatashin <[email protected]>
Cc: Oscar Salvador <[email protected]>
Cc: Michal Hocko <[email protected]>
Cc: Mike Rapoport <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

0 files changed, 0 insertions, 0 deletions