From: Sukadev Bhattiprolu <[EMAIL PROTECTED]>
This will help fixing memory leaks due to bad reference counting.
Signed-off-by: Sukadev Bhattiprolu <[EMAIL PROTECTED]>
---
pid.c | 9 ++++++---
1 files changed, 6 insertions(+), 3 deletions(-)
--- ./kernel/pid.c.ve16 2007-08-07 12:50:16.000000000 +0400
+++ ./kernel/pid.c 2007-08-07 12:51:13.000000000 +0400
@@ -34,6 +34,7 @@
static struct hlist_head *pid_hash;
static int pidhash_shift;
struct pid init_struct_pid = INIT_STRUCT_PID;
+static struct kmem_cache *pid_ns_cachep;
int pid_max = PID_MAX_DEFAULT;
@@ -480,7 +481,7 @@ static struct pid_namespace *create_pid_
struct pid_namespace *ns;
int i;
- ns = kmalloc(sizeof(struct pid_namespace), GFP_KERNEL);
+ ns = kmem_cache_alloc(pid_ns_cachep, GFP_KERNEL);
if (ns == NULL)
goto out;
@@ -510,7 +511,7 @@ static struct pid_namespace *create_pid_
out_free_map:
kfree(ns->pidmap[0].page);
out_free:
- kfree(ns);
+ kmem_cache_free(pid_ns_cachep, ns);
out:
return ERR_PTR(-ENOMEM);
}
@@ -521,7 +522,7 @@ static void destroy_pid_namespace(struct
for (i = 0; i < PIDMAP_ENTRIES; i++)
kfree(ns->pidmap[i].page);
- kfree(ns);
+ kmem_cache_free(pid_ns_cachep, ns);
}
struct pid_namespace *copy_pid_ns(unsigned long flags, struct pid_namespace
*old_ns)
@@ -595,4 +596,6 @@ void __init pidmap_init(void)
init_pid_ns.pid_cachep = create_pid_cachep(1);
if (init_pid_ns.pid_cachep == NULL)
panic("Can't create pid_1 cachep\n");
+
+ pid_ns_cachep = KMEM_CACHE(pid_namespace, SLAB_PANIC);
}
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