pid namespaces: remove the struct pid unneeded fields

Since we've switched from using pid->nr to pid->upids->nr some
fields on struct pid are no longer needed

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Cc: Oleg Nesterov <oleg@tv-sign.ru>
Cc: Sukadev Bhattiprolu <sukadev@us.ibm.com>
Cc: Paul Menage <menage@google.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 0 insertions, 3 deletions

diff --git a/include/linux/pid.h b/include/linux/pid.h
index 16644cceb946..4817c6671e77 100644
--- a/include/linux/pid.h
+++ b/include/linux/pid.h
@@ -57,9 +57,6 @@ struct upid {
 struct pid
 {
         atomic_t count;
-        /* Try to keep pid_chain in the same cacheline as nr for find_pid */
-        int nr;
-        struct hlist_node pid_chain;
         /* lists of tasks that use this pid */
         struct hlist_head tasks[PIDTYPE_MAX];
         struct rcu_head rcu;