diff options
| author | Gavin Shan <shangw@linux.vnet.ibm.com> | 2012-07-31 16:46:02 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-07-31 18:42:49 -0700 |
| commit | 5b760e64a64c8940cdccd0ba6fce19a9bd010d20 (patch) | |
| tree | b4765cd744dd5710ba6cd4d784185247dc317cef /mm/migrate.c | |
| parent | b214514592d2dcb0b9d14ee8dd14f3699e3b0a84 (diff) | |
mm/sparse: optimize sparse_index_alloc
With CONFIG_SPARSEMEM_EXTREME, the two levels of memory section
descriptors are allocated from slab or bootmem. When allocating from
slab, let slab/bootmem allocator clear the memory chunk. We needn't clear
it explicitly.
Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com>
Reviewed-by: Michal Hocko <mhocko@suse.cz>
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/migrate.c')
0 files changed, 0 insertions, 0 deletions