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authorEric W. Biederman <ebiederm@xmission.com>2007-11-30 23:54:00 +1100
committerDavid S. Miller <davem@davemloft.net>2008-01-28 14:55:17 -0800
commite51b6ba077791f2f8c876022b37419be7a2ceec3 (patch)
tree9d8ca18f3239eff84cad5b79b715c332970fa89d /net/sysctl_net.c
parent23eb06de7d2d333a0f7ebba2da663e00c9c9483e (diff)
downloadlinux-e51b6ba077791f2f8c876022b37419be7a2ceec3.tar.gz
sysctl: Infrastructure for per namespace sysctls
This patch implements the basic infrastructure for per namespace sysctls. A list of lists of sysctl headers is added, allowing each namespace to have it's own list of sysctl headers. Each list of sysctl headers has a lookup function to find the first sysctl header in the list, allowing the lists to have a per namespace instance. register_sysct_root is added to tell sysctl.c about additional lists of sysctl_headers. As all of the users are expected to be in kernel no unregister function is provided. sysctl_head_next is updated to walk through the list of lists. __register_sysctl_paths is added to add a new sysctl table on a non-default sysctl list. The only intrusive part of this patch is propagating the information to decided which list of sysctls to use for sysctl_check_table. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Cc: Serge Hallyn <serue@us.ibm.com> Cc: Daniel Lezcano <dlezcano@fr.ibm.com> Cc: Cedric Le Goater <clg@fr.ibm.com> Cc: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sysctl_net.c')
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