From: "Serge E. Hallyn" <serue@us.ibm.com>
To: lkml <linux-kernel@vger.kernel.org>
Subject: [PATCH] utsns: fix !CONFIG_UTS_NS behavior
Date: Fri, 23 Mar 2007 15:00:39 -0500 [thread overview]
Message-ID: <20070323200039.GA15775@sergelap.austin.ibm.com> (raw)
From: "Serge E. Hallyn" <serue@us.ibm.com>
Subject: [PATCH] utsns: fix !CONFIG_UTS_NS behavior
When CONFIG_UTS_NS=n, clone(CLONE_NEWUTS) quietly refuses. So correctly does
not unshare a new uts namespace, but also does not return -EINVAL.
Fix this to return -EINVAL so the caller knows his request was denied.
Signed-off-by: Serge E. Hallyn <serue@us.ibm.com>
---
include/linux/utsname.h | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
bc350994ac67df8f1b917f9979c065d87757eabe
diff --git a/include/linux/utsname.h b/include/linux/utsname.h
index a4555fe..e10267d 100644
--- a/include/linux/utsname.h
+++ b/include/linux/utsname.h
@@ -70,6 +70,8 @@ static inline int unshare_utsname(unsign
static inline int copy_utsname(int flags, struct task_struct *tsk)
{
+ if (flags & CLONE_NEWUTS)
+ return -EINVAL;
return 0;
}
static inline void put_uts_ns(struct uts_namespace *ns)
--
1.1.6
next reply other threads:[~2007-03-23 20:00 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-03-23 20:00 Serge E. Hallyn [this message]
2007-03-25 9:07 ` Andrew Morton
2007-03-25 16:16 ` Serge E. Hallyn
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