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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 <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric W. Biederman
2007-09-12 12:01:34 +02:00
committed by David S. Miller
parent 07feaebfcc
commit 457c4cbc5a
84 changed files with 342 additions and 261 deletions
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5
drivers/net/hamradio/scc.c
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@@ -174,6 +174,7 @@
#include <linux/seq_file.h>
#include <linux/bitops.h>
#include <net/net_namespace.h>
#include <net/ax25.h>
#include <asm/irq.h>
@@ -2114,7 +2115,7 @@ static int __init scc_init_driver (void)
}
rtnl_unlock();
proc_net_fops_create("z8530drv", 0, &scc_net_seq_fops);
proc_net_fops_create(&init_net, "z8530drv", 0, &scc_net_seq_fops);
return 0;
}
@@ -2169,7 +2170,7 @@ static void __exit scc_cleanup_driver(void)
if (Vector_Latch)
release_region(Vector_Latch, 1);
proc_net_remove("z8530drv");
proc_net_remove(&init_net, "z8530drv");
}
MODULE_AUTHOR("Joerg Reuter <jreuter@yaina.de>");