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Message-ID: <46BC508E.mailGLP17CM9M@openvz.org>
Date: Fri, 10 Aug 2007 15:48:30 +0400
From: xemul@...nvz.org
To: akpm@...l.org
Cc: xemul@...nvz.org, devel@...nvz.org, linux-kernel@...r.kernel.org,
containers@...ts.osdl.org, oleg@...sign.ru, sukadev@...ibm.com
Subject: [PATCH 20/20] 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@...nvz.org>
Cc: Oleg Nesterov <oleg@...sign.ru>
---
include/linux/init_task.h | 3 ---
include/linux/pid.h | 3 ---
kernel/pid.c | 1 -
3 files changed, 7 deletions(-)
--- ./include/linux/init_task.h.ve17 2007-08-06 14:14:02.000000000 +0400
+++ ./include/linux/init_task.h 2007-08-06 14:14:02.000000000 +0400
@@ -93,9 +93,6 @@ extern struct group_info init_groups;
#define INIT_STRUCT_PID { \
.count = ATOMIC_INIT(1), \
- .nr = 0, \
- /* Don't put this struct pid in pid_hash */ \
- .pid_chain = { .next = NULL, .pprev = NULL }, \
.tasks = { \
{ .first = &init_task.pids[PIDTYPE_PID].node }, \
{ .first = &init_task.pids[PIDTYPE_PGID].node }, \
--- ./include/linux/pid.h.ve17 2007-08-06 14:14:02.000000000 +0400
+++ ./include/linux/pid.h 2007-08-06 14:14:02.000000000 +0400
@@ -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;
--- ./kernel/pid.c.ve17 2007-08-06 14:14:02.000000000 +0400
+++ ./kernel/pid.c 2007-08-06 14:14:18.000000000 +0400
@@ -259,7 +259,6 @@ struct pid *alloc_pid(struct pid_namespa
get_pid_ns(ns);
pid->level = ns->level;
- pid->nr = pid->numbers[0].nr;
atomic_set(&pid->count, 1);
for (type = 0; type < PIDTYPE_MAX; ++type)
INIT_HLIST_HEAD(&pid->tasks[type]);
-
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