data, memory: Optimize .zero > PAGE_SIZE
commit3556f9bf14adea47163d6cf3afc2fe03e9df538d
authorEric Blake <eblake@redhat.com>
Thu, 15 Aug 2019 02:03:02 +0000 (14 21:03 -0500)
committerEric Blake <eblake@redhat.com>
Thu, 15 Aug 2019 14:22:18 +0000 (15 09:22 -0500)
treeb68ae2695ee8bd31992d03539d680c48f13d2d01
parenta57632e1f6aa7838e49cc3db3dfb45279f2e7d62
data, memory: Optimize .zero > PAGE_SIZE

When sparse_array_zero() is used for a range larger than a page,
there's no need to waste time in memset() or is_zero() - we already
know the page will be free()d.

Signed-off-by: Eric Blake <eblake@redhat.com>
common/sparse/sparse.c