[NET]: Make /proc/net per network namespace
This patch makes /proc/net per network namespace. It modifies the global
variables proc_net and proc_net_stat to be per network namespace.
The proc_net file helpers are modified to take a network namespace argument,
and all of their callers are fixed to pass &init_net for that argument.
This ensures that all of the /proc/net files are only visible and
usable in the initial network namespace until the code behind them
has been updated to be handle multiple network namespaces.
Making /proc/net per namespace is necessary as at least some files
in /proc/net depend upon the set of network devices which is per
network namespace, and even more files in /proc/net have contents
that are relevant to a single network namespace.
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/isdn/hysdn/hysdn_procconf.c b/drivers/isdn/hysdn/hysdn_procconf.c
index dc477e0..27d890b 100644
--- a/drivers/isdn/hysdn/hysdn_procconf.c
+++ b/drivers/isdn/hysdn/hysdn_procconf.c
@@ -16,6 +16,7 @@
#include <linux/proc_fs.h>
#include <linux/pci.h>
#include <linux/smp_lock.h>
+#include <net/net_namespace.h>
#include "hysdn_defs.h"
@@ -392,7 +393,7 @@
hysdn_card *card;
unsigned char conf_name[20];
- hysdn_proc_entry = proc_mkdir(PROC_SUBDIR_NAME, proc_net);
+ hysdn_proc_entry = proc_mkdir(PROC_SUBDIR_NAME, init_net.proc_net);
if (!hysdn_proc_entry) {
printk(KERN_ERR "HYSDN: unable to create hysdn subdir\n");
return (-1);
@@ -437,5 +438,5 @@
card = card->next; /* point to next card */
}
- remove_proc_entry(PROC_SUBDIR_NAME, proc_net);
+ remove_proc_entry(PROC_SUBDIR_NAME, init_net.proc_net);
}