WSL2-Linux-Kernel/fs/dlm
Johannes Berg 134e63756d genetlink: make netns aware
This makes generic netlink network namespace aware. No
generic netlink families except for the controller family
are made namespace aware, they need to be checked one by
one and then set the family->netnsok member to true.

A new function genlmsg_multicast_netns() is introduced to
allow sending a multicast message in a given namespace,
for example when it applies to an object that lives in
that namespace, a new function genlmsg_multicast_allns()
to send a message to all network namespaces (for objects
that do not have an associated netns).

The function genlmsg_multicast() is changed to multicast
the message in just init_net, which is currently correct
for all generic netlink families since they only work in
init_net right now. Some will later want to work in all
net namespaces because they do not care about the netns
at all -- those will have to be converted to use one of
the new functions genlmsg_multicast_allns() or
genlmsg_multicast_netns() whenever they are made netns
aware in some way.

After this patch families can easily decide whether or
not they should be available in all net namespaces. Many
genl families us it for objects not related to networking
and should therefore be available in all namespaces, but
that will have to be done on a per family basis.

Note that this doesn't touch on the checkpoint/restart
problem where network namespaces could be used, genl
families and multicast groups are numbered globally and
I see no easy way of changing that, especially since it
must be possible to multicast to all network namespaces
for those families that do not care about netns.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-07-12 14:03:27 -07:00
..
Kconfig menuconfig: transform NLS and DLM menus 2007-10-17 08:43:00 -07:00
Makefile dlm: move plock code from gfs2 2008-04-21 11:22:28 -05:00
ast.c dlm: fs/dlm/ast.c: fix warning 2008-12-23 10:22:56 -06:00
ast.h dlm: improve how bast mode handling 2008-12-23 10:16:46 -06:00
config.c dlm: choose better identifiers 2008-09-05 09:51:30 -05:00
config.h dlm: recover nodes that are removed and re-added 2008-04-21 11:18:01 -05:00
debug_fs.c dlm: change rsbtbl rwlock to spinlock 2009-01-08 15:12:39 -06:00
dir.c dlm: use more NOFS allocation 2009-05-15 11:24:59 -05:00
dir.h [DLM] The core of the DLM for GFS2/CLVM 2006-01-18 09:30:29 +00:00
dlm_internal.h dlm: Change rwlock which is only used in write mode to a spinlock 2009-01-28 12:55:55 -06:00
lock.c dlm: ignore cancel on granted lock 2009-03-11 12:23:58 -05:00
lock.h dlm: make dlm_print_rsb() static 2008-04-21 11:18:01 -05:00
lockspace.c dlm: fix use count with multiple joins 2009-05-07 10:14:42 -05:00
lockspace.h dlm: detect available userspace daemon 2008-08-28 11:49:43 -05:00
lowcomms.c dlm: use more NOFS allocation 2009-05-15 11:24:59 -05:00
lowcomms.h dlm: connect to nodes earlier 2009-05-15 09:34:12 -05:00
lvb_table.h [DLM] The core of the DLM for GFS2/CLVM 2006-01-18 09:30:29 +00:00
main.c dlm: move plock code from gfs2 2008-04-21 11:22:28 -05:00
member.c dlm: use more NOFS allocation 2009-05-15 11:24:59 -05:00
member.h dlm: reject messages from non-members 2008-01-30 11:04:42 -06:00
memory.c dlm: fix up memory allocation flags 2008-12-23 10:15:40 -06:00
memory.h dlm: use dlm prefix on alloc and free functions 2008-01-29 17:17:19 -06:00
midcomms.c dlm: fix up memory allocation flags 2008-12-23 10:15:40 -06:00
midcomms.h [DLM] The core of the DLM for GFS2/CLVM 2006-01-18 09:30:29 +00:00
netlink.c genetlink: make netns aware 2009-07-12 14:03:27 -07:00
plock.c dlm: initialize file_lock struct in GETLK before copying conflicting lock 2009-01-21 15:28:45 -06:00
rcom.c dlm: fix rcom_names message to self 2008-02-21 15:19:54 -06:00
rcom.h [DLM] block dlm_recv in recovery transition 2007-10-10 08:56:38 +01:00
recover.c dlm: change rsbtbl rwlock to spinlock 2009-01-08 15:12:39 -06:00
recover.h [DLM] The core of the DLM for GFS2/CLVM 2006-01-18 09:30:29 +00:00
recoverd.c dlm: recover nodes that are removed and re-added 2008-04-21 11:18:01 -05:00
recoverd.h [DLM] The core of the DLM for GFS2/CLVM 2006-01-18 09:30:29 +00:00
requestqueue.c dlm: use more NOFS allocation 2009-05-15 11:24:59 -05:00
requestqueue.h dlm: use proper C for dlm/requestqueue stuff (and fix alignment bug) 2008-02-04 01:21:32 -06:00
user.c dlm: fix length calculation in compat code 2009-03-11 12:23:59 -05:00
user.h dlm: improve how bast mode handling 2008-12-23 10:16:46 -06:00
util.c dlm: do not byteswap rcom_config 2008-02-04 01:23:43 -06:00
util.h [DLM] The core of the DLM for GFS2/CLVM 2006-01-18 09:30:29 +00:00