RFC [patch 29/34] PID Virtualization container attach/detach calls

[Serge Hallyn]

Call the container attach and detach functions at their respective
locations. This happens during the fork and exit functions.

Signed-off-by: Hubertus Franke <frankeh@xxxxxxxxxxxxxx>
---
 exit.c |    1 +
 fork.c |    5 ++++-
 2 files changed, 5 insertions(+), 1 deletion(-)

Index: linux-2.6.15/kernel/exit.c
===================================================================
--- linux-2.6.15.orig/kernel/exit.c	2006-01-17 08:37:07.000000000 -0500
+++ linux-2.6.15/kernel/exit.c	2006-01-17 08:37:08.000000000 -0500
@@ -101,6 +101,7 @@
 		zap_leader = (leader->exit_signal == -1);
 	}
 
+	container_detach(p);
 	sched_exit(p);
 	write_unlock_irq(&tasklist_lock);
 	spin_unlock(&p->proc_lock);
Index: linux-2.6.15/kernel/fork.c
===================================================================
--- linux-2.6.15.orig/kernel/fork.c	2006-01-17 08:37:08.000000000 -0500
+++ linux-2.6.15/kernel/fork.c	2006-01-17 08:37:08.000000000 -0500
@@ -43,6 +43,7 @@
 #include <linux/rmap.h>
 #include <linux/acct.h>
 #include <linux/cn_proc.h>
+#include <linux/container.h>
 
 #include <asm/pgtable.h>
 #include <asm/pgalloc.h>
@@ -999,6 +1000,7 @@
 		goto bad_fork_cleanup_mm;
 	if ((retval = copy_namespace(clone_flags, p)))
 		goto bad_fork_cleanup_keys;
+	container_attach(p);
 	retval = copy_thread(0, clone_flags, stack_start, stack_size, p, regs);
 	if (retval)
 		goto bad_fork_cleanup_namespace;
@@ -1175,6 +1177,7 @@
 	mpol_free(p->mempolicy);
 #endif
 bad_fork_cleanup:
+	container_detach(p);
 	if (p->binfmt)
 		module_put(p->binfmt->module);
 bad_fork_cleanup_put_domain:
@@ -1238,7 +1241,7 @@
 {
 	struct task_struct *p;
 	int trace = 0;
-	long pid = alloc_pidmap(DEFAULT_PIDSPACE);
+	long pid = alloc_pidmap(task_pidspace_id(current));
 	long vpid;
 
 	if (pid < 0)

--

-
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