Signed-off-by: Joe Perches <[email protected]>
---
mm/memcontrol.c | 5 ++---
mm/page_cgroup.c | 3 +--
mm/percpu.c | 8 ++------
mm/swapfile.c | 3 +--
4 files changed, 6 insertions(+), 13 deletions(-)
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 9a99cfa..90da698 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -4199,14 +4199,13 @@ static struct mem_cgroup *mem_cgroup_alloc(void)
/* Can be very big if MAX_NUMNODES is very big */
if (size < PAGE_SIZE)
- mem = kmalloc(size, GFP_KERNEL);
+ mem = kzalloc(size, GFP_KERNEL);
else
- mem = vmalloc(size);
+ mem = vzalloc(size);
if (!mem)
return NULL;
- memset(mem, 0, size);
mem->stat = alloc_percpu(struct mem_cgroup_stat_cpu);
if (!mem->stat) {
if (size < PAGE_SIZE)
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;
diff --git a/mm/percpu.c b/mm/percpu.c
index efe8168..9e16d1c 100644
--- a/mm/percpu.c
+++ b/mm/percpu.c
@@ -293,12 +293,8 @@ static void *pcpu_mem_alloc(size_t size)
if (size <= PAGE_SIZE)
return kzalloc(size, GFP_KERNEL);
- else {
- void *ptr = vmalloc(size);
- if (ptr)
- memset(ptr, 0, size);
- return ptr;
- }
+ else
+ return vzalloc(size);
}
/**
diff --git a/mm/swapfile.c b/mm/swapfile.c
index 67ddaaf..43e6988 100644
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@ -2044,13 +2044,12 @@ SYSCALL_DEFINE2(swapon, const char __user *,
specialfile, int, swap_flags)
goto bad_swap;
/* OK, set up the swap map and apply the bad block list */
- swap_map = vmalloc(maxpages);
+ swap_map = vzalloc(maxpages);
if (!swap_map) {
error = -ENOMEM;
goto bad_swap;
}
- memset(swap_map, 0, maxpages);
nr_good_pages = maxpages - 1; /* omit header page */
for (i = 0; i < swap_header->info.nr_badpages; i++) {
--
1.7.3.1.g432b3.dirty
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