* [PATCH] utsns: extract creeate_uts_ns()
@ 2009-05-03 23:25 Alexey Dobriyan
[not found] ` <20090503232510.GA16631-2ev+ksY9ol182hYKe6nXyg@public.gmane.org>
2009-05-04 20:05 ` Serge E. Hallyn
0 siblings, 2 replies; 4+ messages in thread
From: Alexey Dobriyan @ 2009-05-03 23:25 UTC (permalink / raw)
To: akpm; +Cc: linux-kernel, containers
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;
}
^ permalink raw reply related [flat|nested] 4+ messages in thread[parent not found: <20090503232510.GA16631-2ev+ksY9ol182hYKe6nXyg@public.gmane.org>]
* Re: [PATCH] utsns: extract creeate_uts_ns()
[not found] ` <20090503232510.GA16631-2ev+ksY9ol182hYKe6nXyg@public.gmane.org>
@ 2009-05-04 20:05 ` Serge E. Hallyn
0 siblings, 0 replies; 4+ messages in thread
From: Serge E. Hallyn @ 2009-05-04 20:05 UTC (permalink / raw)
To: Alexey Dobriyan
Cc: akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b,
containers-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA,
linux-kernel-u79uwXL29TY76Z2rM5mHXA
Quoting Alexey Dobriyan (adobriyan-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org):
> create_uts_ns() will be used by C/R to create fresh uts_ns.
>
> Signed-off-by: Alexey Dobriyan <adobriyan-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Acked-by: Serge Hallyn <serue-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
thanks,
-serge
> ---
> 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;
> }
>
> _______________________________________________
> Containers mailing list
> Containers-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org
> https://lists.linux-foundation.org/mailman/listinfo/containers
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] utsns: extract creeate_uts_ns()
2009-05-03 23:25 [PATCH] utsns: extract creeate_uts_ns() Alexey Dobriyan
[not found] ` <20090503232510.GA16631-2ev+ksY9ol182hYKe6nXyg@public.gmane.org>
@ 2009-05-04 20:05 ` Serge E. Hallyn
1 sibling, 0 replies; 4+ messages in thread
From: Serge E. Hallyn @ 2009-05-04 20:05 UTC (permalink / raw)
To: Alexey Dobriyan; +Cc: akpm, containers, linux-kernel
Quoting Alexey Dobriyan (adobriyan@gmail.com):
> 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>
thanks,
-serge
> ---
> 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;
> }
>
> _______________________________________________
> Containers mailing list
> Containers@lists.linux-foundation.org
> https://lists.linux-foundation.org/mailman/listinfo/containers
^ permalink raw reply [flat|nested] 4+ messages in thread
* [PATCH] utsns: extract creeate_uts_ns()
@ 2009-05-03 23:25 Alexey Dobriyan
0 siblings, 0 replies; 4+ messages in thread
From: Alexey Dobriyan @ 2009-05-03 23:25 UTC (permalink / raw)
To: akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b
Cc: containers-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA,
linux-kernel-u79uwXL29TY76Z2rM5mHXA
create_uts_ns() will be used by C/R to create fresh uts_ns.
Signed-off-by: Alexey Dobriyan <adobriyan-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
---
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;
}
^ permalink raw reply related [flat|nested] 4+ messages in thread
end of thread, other threads:[~2009-05-04 20:05 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
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2009-05-03 23:25 [PATCH] utsns: extract creeate_uts_ns() Alexey Dobriyan
[not found] ` <20090503232510.GA16631-2ev+ksY9ol182hYKe6nXyg@public.gmane.org>
2009-05-04 20:05 ` Serge E. Hallyn
2009-05-04 20:05 ` Serge E. Hallyn
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2009-05-03 23:25 Alexey Dobriyan
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