path: root/kernel
diff options
authorChristoph Hellwig <hch@lst.de>2009-06-17 16:27:51 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-06-18 13:03:55 -0700
commit17f98dcf6010a1cfd25d179fd0ce77d3dc2685c3 (patch)
tree520d88ba2282b4811f492be6cc4565a2a3eea128 /kernel
parent7338f29984114066b00da343a22876bb08259a84 (diff)
pids: clean up find_task_by_pid variants
find_task_by_pid_type_ns is only used to implement find_task_by_vpid and find_task_by_pid_ns, but both of them pass PIDTYPE_PID as first argument. So just fold find_task_by_pid_type_ns into find_task_by_pid_ns and use find_task_by_pid_ns to implement find_task_by_vpid. While we're at it also remove the exports for find_task_by_pid_ns and find_task_by_vpid - we don't have any modular callers left as the only modular caller of he old pre pid namespace find_task_by_pid (gfs2) was switched to pid_task which operates on a struct pid pointer instead of a pid_t. Given the confusion about pid_t values vs namespace that's generally the better option anyway and I think we're better of restricting modules to do it that way. Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: Pavel Emelyanov <xemul@openvz.org> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel')
1 files changed, 3 insertions, 14 deletions
diff --git a/kernel/pid.c b/kernel/pid.c
index b2e5f78fd28..31310b5d3f5 100644
--- a/kernel/pid.c
+++ b/kernel/pid.c
@@ -378,26 +378,15 @@ EXPORT_SYMBOL(pid_task);
* Must be called under rcu_read_lock() or with tasklist_lock read-held.
-struct task_struct *find_task_by_pid_type_ns(int type, int nr,
- struct pid_namespace *ns)
+struct task_struct *find_task_by_pid_ns(pid_t nr, struct pid_namespace *ns)
- return pid_task(find_pid_ns(nr, ns), type);
+ return pid_task(find_pid_ns(nr, ns), PIDTYPE_PID);
struct task_struct *find_task_by_vpid(pid_t vnr)
- return find_task_by_pid_type_ns(PIDTYPE_PID, vnr,
- current->nsproxy->pid_ns);
-struct task_struct *find_task_by_pid_ns(pid_t nr, struct pid_namespace *ns)
- return find_task_by_pid_type_ns(PIDTYPE_PID, nr, ns);
+ return find_task_by_pid_ns(vnr, current->nsproxy->pid_ns);
struct pid *get_task_pid(struct task_struct *task, enum pid_type type)