diff options
author | Eric W. Biederman <ebiederm@xmission.com> | 2007-12-02 00:33:17 +1100 |
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committer | Herbert Xu <herbert@gondor.apana.org.au> | 2007-12-02 00:33:17 +1100 |
commit | 2b1e300a9dfc3196ccddf6f1d74b91b7af55e416 (patch) | |
tree | 3181bf4f2c27d185c78b26642f35ed00cb280943 /fs/nfs | |
parent | e03ba84adb62fbc6049325a5bc00ef6932fa5e39 (diff) |
[NETNS]: Fix /proc/net breakage
Well I clearly goofed when I added the initial network namespace support
for /proc/net. Currently things work but there are odd details visible to
user space, even when we have a single network namespace.
Since we do not cache proc_dir_entry dentries at the moment we can just
modify ->lookup to return a different directory inode depending on the
network namespace of the process looking at /proc/net, replacing the
current technique of using a magic and fragile follow_link method.
To accomplish that this patch:
- introduces a shadow_proc method to allow different dentries to
be returned from proc_lookup.
- Removes the old /proc/net follow_link magic
- Fixes a weakness in our not caching of proc generic dentries.
As shadow_proc uses a task struct to decided which dentry to return we can
go back later and fix the proc generic caching without modifying any code
that uses the shadow_proc method.
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Pavel Emelyanov <xemul@openvz.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'fs/nfs')
0 files changed, 0 insertions, 0 deletions