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[NET]: Make /proc/net per network namespace

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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 <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Eric W. Biederman 2007-09-12 12:01:34 +02:00 • committed by David S. Miller
commit 457c4cbc5a
84 changed files with 342 additions and 261 deletions
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5
net/irda/irproc.c
View file

@ -28,6 +28,7 @@
#include <linux/seq_file.h>
#include <linux/module.h>
#include <linux/init.h>
#include <net/net_namespace.h>
#include <net/irda/irda.h>
#include <net/irda/irlap.h>
@ -66,7 +67,7 @@ void __init irda_proc_register(void)
int i;
struct proc_dir_entry *d;
proc_irda = proc_mkdir("irda", proc_net);
proc_irda = proc_mkdir("irda", init_net.proc_net);
if (proc_irda == NULL)
return;
proc_irda->owner = THIS_MODULE;
@ -92,7 +93,7 @@ void irda_proc_unregister(void)
for (i=0; i<ARRAY_SIZE(irda_dirs); i++)
remove_proc_entry(irda_dirs[i].name, proc_irda);
remove_proc_entry("irda", proc_net);
remove_proc_entry("irda", init_net.proc_net);
proc_irda = NULL;
}
}