From e8cfbc245e24887e3c30235f71e9e9405e0cfc39 Mon Sep 17 00:00:00 2001 From: Gargi Sharma Date: Fri, 17 Nov 2017 15:30:34 -0800 Subject: pid: remove pidhash pidhash is no longer required as all the information can be looked up from idr tree. nr_hashed represented the number of pids that had been hashed. Since, nr_hashed and PIDNS_HASH_ADDING are no longer relevant, it has been renamed to pid_allocated and PIDNS_ADDING respectively. [gs051095@gmail.com: v6] Link: http://lkml.kernel.org/r/1507760379-21662-3-git-send-email-gs051095@gmail.com Link: http://lkml.kernel.org/r/1507583624-22146-3-git-send-email-gs051095@gmail.com Signed-off-by: Gargi Sharma Reviewed-by: Rik van Riel Tested-by: Tony Luck [ia64] Cc: Julia Lawall Cc: Ingo Molnar Cc: Pavel Tatashin Cc: Kirill Tkhai Cc: Oleg Nesterov Cc: Eric W. Biederman Cc: Christoph Hellwig Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/init_task.h | 1 - include/linux/pid.h | 2 -- include/linux/pid_namespace.h | 4 ++-- 3 files changed, 2 insertions(+), 5 deletions(-) (limited to 'include') diff --git a/include/linux/init_task.h b/include/linux/init_task.h index 8062e6cc607c..6a532629c983 100644 --- a/include/linux/init_task.h +++ b/include/linux/init_task.h @@ -105,7 +105,6 @@ extern struct group_info init_groups; .numbers = { { \ .nr = 0, \ .ns = &init_pid_ns, \ - .pid_chain = { .next = NULL, .pprev = NULL }, \ }, } \ } diff --git a/include/linux/pid.h b/include/linux/pid.h index dfd684ce0787..7633d55d9a24 100644 --- a/include/linux/pid.h +++ b/include/linux/pid.h @@ -51,10 +51,8 @@ enum pid_type */ struct upid { - /* Try to keep pid_chain in the same cacheline as nr for find_vpid */ int nr; struct pid_namespace *ns; - struct hlist_node pid_chain; }; struct pid diff --git a/include/linux/pid_namespace.h b/include/linux/pid_namespace.h index 92c6aa509d2e..49538b172483 100644 --- a/include/linux/pid_namespace.h +++ b/include/linux/pid_namespace.h @@ -25,7 +25,7 @@ struct pid_namespace { struct kref kref; struct idr idr; struct rcu_head rcu; - unsigned int nr_hashed; + unsigned int pid_allocated; struct task_struct *child_reaper; struct kmem_cache *pid_cachep; unsigned int level; @@ -49,7 +49,7 @@ struct pid_namespace { extern struct pid_namespace init_pid_ns; -#define PIDNS_HASH_ADDING (1U << 31) +#define PIDNS_ADDING (1U << 31) #ifdef CONFIG_PID_NS static inline struct pid_namespace *get_pid_ns(struct pid_namespace *ns) -- cgit v1.2.3