Hi, We can avoid doing a memset in swap_cgroup_swapon() by using vzalloc().
Signed-off-by: Jesper Juhl <[email protected]> --- compile tested only. page_cgroup.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/mm/page_cgroup.c b/mm/page_cgroup.c index 5bffada..34970c7 100644 --- a/mm/page_cgroup.c +++ b/mm/page_cgroup.c @@ -450,11 +450,10 @@ int swap_cgroup_swapon(int type, unsigned long max_pages) length = ((max_pages/SC_PER_PAGE) + 1); array_size = length * sizeof(void *); - array = vmalloc(array_size); + array = vzalloc(array_size); if (!array) goto nomem; - memset(array, 0, array_size); ctrl = &swap_cgroup_ctrl[type]; mutex_lock(&swap_cgroup_mutex); ctrl->length = length; -- Jesper Juhl <[email protected]> http://www.chaosbits.net/ Plain text mails only, please http://www.expita.com/nomime.html Don't top-post http://www.catb.org/~esr/jargon/html/T/top-post.html _______________________________________________ Containers mailing list [email protected] https://lists.linux-foundation.org/mailman/listinfo/containers _______________________________________________ Devel mailing list [email protected] https://openvz.org/mailman/listinfo/devel
