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authorPavel Emelyanov <xemul@openvz.org>2007-10-18 23:40:17 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-19 11:53:40 -0700
commit19b9b9b54e5f115907efd56be2c3799775a46561 (patch)
tree44340df34980166373f2a57c1283c26026682a95
parent228ebcbe634a30aec35132ea4375721bcc41bec0 (diff)
downloadvexpress-lsk-19b9b9b54e5f115907efd56be2c3799775a46561.tar.gz
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>
-rw-r--r--include/linux/init_task.h3
-rw-r--r--include/linux/pid.h3
-rw-r--r--kernel/pid.c1
3 files changed, 0 insertions, 7 deletions
diff --git a/include/linux/init_task.h b/include/linux/init_task.h
index 243e287304d..5ac5945696a 100644
--- a/include/linux/init_task.h
+++ b/include/linux/init_task.h
@@ -94,9 +94,6 @@ 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 }, \
diff --git a/include/linux/pid.h b/include/linux/pid.h
index 16644cceb94..4817c6671e7 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;
diff --git a/kernel/pid.c b/kernel/pid.c
index 73a60e265f5..bed9e7f80a5 100644
--- a/kernel/pid.c
+++ b/kernel/pid.c
@@ -263,7 +263,6 @@ struct pid *alloc_pid(struct pid_namespace *ns)
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]);