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Subject[PATCH 02/38] utsns: extract create_uts_ns()
Date
create_uts_ns() will be used by C/R to create fresh uts_ns.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
---
kernel/utsname.c | 13 +++++++++++--
1 files changed, 11 insertions(+), 2 deletions(-)
diff --git a/kernel/utsname.c b/kernel/utsname.c
index 815237a..8a82b4b 100644
--- a/kernel/utsname.c
+++ b/kernel/utsname.c
@@ -15,6 +15,16 @@
#include <linux/err.h>
#include <linux/slab.h>

+static struct uts_namespace *create_uts_ns(void)
+{
+ struct uts_namespace *uts_ns;
+
+ uts_ns = kmalloc(sizeof(struct uts_namespace), GFP_KERNEL);
+ if (uts_ns)
+ kref_init(&uts_ns->kref);
+ return uts_ns;
+}
+
/*
* Clone a new ns copying an original utsname, setting refcount to 1
* @old_ns: namespace to clone
@@ -24,14 +34,13 @@ static struct uts_namespace *clone_uts_ns(struct uts_namespace *old_ns)
{
struct uts_namespace *ns;

- ns = kmalloc(sizeof(struct uts_namespace), GFP_KERNEL);
+ ns = create_uts_ns();
if (!ns)
return ERR_PTR(-ENOMEM);

down_read(&uts_sem);
memcpy(&ns->name, &old_ns->name, sizeof(ns->name));
up_read(&uts_sem);
- kref_init(&ns->kref);
return ns;
}

--
1.5.6.5


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