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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/tokenring/lanstreamer.c
View File

@@ -123,6 +123,7 @@
#include <linux/bitops.h>
#include <linux/jiffies.h>
#include <net/net_namespace.h>
#include <net/checksum.h>
#include <asm/io.h>
@@ -250,7 +251,7 @@ static int __devinit streamer_init_one(struct pci_dev *pdev,
#if STREAMER_NETWORK_MONITOR
#ifdef CONFIG_PROC_FS
if (!dev_streamer)
create_proc_read_entry("net/streamer_tr", 0, 0,
create_proc_read_entry("streamer_tr", 0, init_net.proc_net,
streamer_proc_info, NULL);
streamer_priv->next = dev_streamer;
dev_streamer = streamer_priv;
@@ -423,7 +424,7 @@ static void __devexit streamer_remove_one(struct pci_dev *pdev)
}
}
if (!dev_streamer)
remove_proc_entry("net/streamer_tr", NULL);
remove_proc_entry("streamer_tr", init_net.proc_net);
}
#endif
#endif