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| author | Alexey Dobriyan <adobriyan@gmail.com> | 2009-06-17 16:27:54 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-06-18 13:03:55 -0700 |
| commit | 4c2a7e72d5937c6a112141c7ff3df0727b3cf3df (patch) | |
| tree | 783dc576aef932a3b56c62da2edb63c1bf9b1170 /kernel/utsname.c | |
| parent | dca4a979604da1bac6956c0117abc2114d6dd3ec (diff) | |
| download | lwn-4c2a7e72d5937c6a112141c7ff3df0727b3cf3df.tar.gz lwn-4c2a7e72d5937c6a112141c7ff3df0727b3cf3df.zip | |
utsns: extract creeate_uts_ns()
create_uts_ns() will be used by C/R to create fresh uts_ns.
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Acked-by: Serge Hallyn <serue@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/utsname.c')
| -rw-r--r-- | kernel/utsname.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/kernel/utsname.c b/kernel/utsname.c index 815237a55af8..8a82b4b8ea52 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; } |