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Pidns: make full use of xxx_vnr() calls

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Some time ago the xxx_vnr() calls (e.g.  pid_vnr or find_task_by_vpid) were
_all_ converted to operate on the current pid namespace.  After this each call
like xxx_nr_ns(foo, current->nsproxy->pid_ns) is nothing but a xxx_vnr(foo)
one.

Switch all the xxx_nr_ns() callers to use the xxx_vnr() calls where
appropriate.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Reviewed-by: Oleg Nesterov <oleg@tv-sign.ru>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Balbir Singh <balbir@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Pavel Emelyanov 2008-02-08 04:19:20 -08:00 • committed by Linus Torvalds
parent fea9d17554
commit 6c5f3e7b43
8 changed files with 12 additions and 23 deletions
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8
kernel/fork.c
View file

@ -1488,13 +1488,7 @@ long do_fork(unsigned long clone_flags,
if (!IS_ERR(p)) {
struct completion vfork;
/*
* this is enough to call pid_nr_ns here, but this if
* improves optimisation of regular fork()
*/
nr = (clone_flags & CLONE_NEWPID) ?
task_pid_nr_ns(p, current->nsproxy->pid_ns) :
task_pid_vnr(p);
nr = task_pid_vnr(p);
if (clone_flags & CLONE_PARENT_SETTID)
put_user(nr, parent_tidptr);