Commit 84406c15 authored by Pavel Emelyanov's avatar Pavel Emelyanov Committed by Linus Torvalds

pidns: use kzalloc when allocating new pid_namespace struct

It makes many fields initialization implicit helping in auto-setting
#ifdef-ed fields (bsd-acct related pointer will be such).
Signed-off-by: default avatarPavel Emelyanov <>
Cc: Balbir Singh <>
Cc: "Eric W. Biederman" <>
Signed-off-by: default avatarAndrew Morton <>
Signed-off-by: default avatarLinus Torvalds <>
parent 081e4c8a
......@@ -71,7 +71,7 @@ static struct pid_namespace *create_pid_namespace(unsigned int level)
struct pid_namespace *ns;
int i;
ns = kmem_cache_alloc(pid_ns_cachep, GFP_KERNEL);
ns = kmem_cache_zalloc(pid_ns_cachep, GFP_KERNEL);
if (ns == NULL)
goto out;
......@@ -84,17 +84,13 @@ static struct pid_namespace *create_pid_namespace(unsigned int level)
goto out_free_map;
ns->last_pid = 0;
ns->child_reaper = NULL;
ns->level = level;
set_bit(0, ns->pidmap[0].page);
atomic_set(&ns->pidmap[0].nr_free, BITS_PER_PAGE - 1);
for (i = 1; i < PIDMAP_ENTRIES; i++) {
ns->pidmap[i].page = NULL;
for (i = 1; i < PIDMAP_ENTRIES; i++)
atomic_set(&ns->pidmap[i].nr_free, BITS_PER_PAGE);
return ns;
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