bsdacct: switch from global bsd_acct_struct instance to per-pidns one
Allocate the structure on the first call to sys_acct(). After this each
namespace, that ordered the accounting, will live with this structure till
its own death.
Two notes
- routines, that close the accounting on fs umount time use
the init_pid_ns's acct by now;
- accounting routine accounts to dying task's namespace
(also by now).
Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Cc: Balbir Singh <balbir@in.ibm.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>
diff --git a/kernel/pid_namespace.c b/kernel/pid_namespace.c
index 06331cc..ea567b7 100644
--- a/kernel/pid_namespace.c
+++ b/kernel/pid_namespace.c
@@ -12,6 +12,7 @@
#include <linux/pid_namespace.h>
#include <linux/syscalls.h>
#include <linux/err.h>
+#include <linux/acct.h>
#define BITS_PER_PAGE (PAGE_SIZE*8)
@@ -181,6 +182,7 @@
/* Child reaper for the pid namespace is going away */
pid_ns->child_reaper = NULL;
+ acct_exit_ns(pid_ns);
return;
}