Gitweb:     
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=ac9a8e3f0f43d20fc316162e8e5f9186d295ff49
Commit:     ac9a8e3f0f43d20fc316162e8e5f9186d295ff49
Parent:     44c4e1b2581f7273ab14ef30b6430618801c57b1
Author:     Oleg Nesterov <[EMAIL PROTECTED]>
AuthorDate: Fri Feb 8 04:19:15 2008 -0800
Committer:  Linus Torvalds <[EMAIL PROTECTED]>
CommitDate: Fri Feb 8 09:22:28 2008 -0800

    sys_getsid: don't use ->nsproxy directly
    
    With the new semantics of find_vpid() we don't need to play with ->nsproxy
    explicitely, _vxx() do the right things.
    
    Also s/tasklist/rcu/.
    
    Signed-off-by: Oleg Nesterov <[EMAIL PROTECTED]>
    Cc: "Eric W. Biederman" <[EMAIL PROTECTED]>
    Cc: Pavel Emelyanov <[EMAIL PROTECTED]>
    Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
    Signed-off-by: Linus Torvalds <[EMAIL PROTECTED]>
---
 kernel/sys.c |   11 ++++-------
 1 files changed, 4 insertions(+), 7 deletions(-)

diff --git a/kernel/sys.c b/kernel/sys.c
index ee2e78d..5a61f80 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -1025,19 +1025,16 @@ asmlinkage long sys_getsid(pid_t pid)
        else {
                int retval;
                struct task_struct *p;
-               struct pid_namespace *ns;
-
-               ns = current->nsproxy->pid_ns;
 
-               read_lock(&tasklist_lock);
-               p = find_task_by_pid_ns(pid, ns);
+               rcu_read_lock();
+               p = find_task_by_vpid(pid);
                retval = -ESRCH;
                if (p) {
                        retval = security_task_getsid(p);
                        if (!retval)
-                               retval = task_session_nr_ns(p, ns);
+                               retval = task_session_vnr(p);
                }
-               read_unlock(&tasklist_lock);
+               rcu_read_unlock();
                return retval;
        }
 }
-
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