linux_dsm_epyc7002/net/core
Thomas Graf 4e985adaa5 rtnl: provide link dump consistency info
This patch adds a change sequence counter to each net namespace
which is bumped whenever a netdevice is added or removed from
the list. If such a change occurred while a link dump took place,
the dump will have the NLM_F_DUMP_INTR flag set in the first
message which has been interrupted and in all subsequent messages
of the same dump.

Note that links may still be modified or renamed while a dump is
taking place but we can guarantee for userspace to receive a
complete list of links and not miss any.

Testing:
I have added 500 VLAN netdevices to make sure the dump is split
over multiple messages. Then while continuously dumping links in
one process I also continuously deleted and re-added a dummy
netdevice in another process. Multiple dumps per seconds have
had the NLM_F_DUMP_INTR flag set.

I guess we can wait for Johannes patch to hit net-next via the
wireless tree.  I just wanted to give this some testing right away.

Signed-off-by: Thomas Graf <tgraf@infradead.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-01 15:39:53 -07:00
..
datagram.c Fix a typo in datagram.c and sctp/socket.c. 2010-12-06 13:10:11 -08:00
dev_addr_lists.c net,rcu: convert call_rcu(ha_rcu_free) to kfree_rcu() 2011-05-07 22:50:52 -07:00
dev.c rtnl: provide link dump consistency info 2011-07-01 15:39:53 -07:00
drop_monitor.c net,rcu: convert call_rcu(free_dm_hw_stat) to kfree_rcu() 2011-05-07 22:50:59 -07:00
dst.c net: fix __dst_destroy_metrics_generic() 2011-05-24 13:29:50 -04:00
ethtool.c v2 ethtool: remove support for ETHTOOL_GRXNTUPLE 2011-06-08 16:45:31 -07:00
fib_rules.c rtnetlink: Compute and store minimum ifinfo dump size 2011-06-09 20:38:07 -07:00
filter.c bug.h: Move ratelimit warn interfaces to ratelimit.h 2011-05-26 15:00:31 -04:00
flow.c net: Make flow cache paths use a const struct flowi. 2011-02-22 18:44:31 -08:00
gen_estimator.c net,rcu: convert call_rcu(__gen_kill_estimator) to kfree_rcu() 2011-05-07 22:50:57 -07:00
gen_stats.c net/core: EXPORT_SYMBOL cleanups 2010-07-12 12:57:55 -07:00
iovec.c net: Limit socket I/O iovec total length to INT_MAX. 2010-10-28 11:47:52 -07:00
kmap_skb.h [PATCH] severing skbuff.h -> highmem.h 2006-12-04 02:00:29 -05:00
link_watch.c Fix common misspellings 2011-03-31 11:26:23 -03:00
Makefile net: support time stamping in phy devices. 2010-07-18 19:15:26 -07:00
neighbour.c rtnetlink: Compute and store minimum ifinfo dump size 2011-06-09 20:38:07 -07:00
net_namespace.c rtnl: provide link dump consistency info 2011-07-01 15:39:53 -07:00
net-sysfs.c Delay struct net freeing while there's a sysfs instance refering to it 2011-06-12 17:45:41 -04:00
net-sysfs.h xps: Add CONFIG_XPS 2010-11-28 18:24:14 -08:00
net-traces.c core: add tracepoints for queueing skb to rcvbuf 2011-06-21 16:06:10 -07:00
netevent.c net/core: EXPORT_SYMBOL cleanups 2010-07-12 12:57:55 -07:00
netpoll.c netpoll: call dev_put() on error in netpoll_setup() 2011-06-11 18:55:22 -07:00
pktgen.c pktgen: refactor pg_init() code 2011-05-22 21:01:22 -04:00
request_sock.c Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2010-12-08 13:47:38 -08:00
rtnetlink.c rtnl: provide link dump consistency info 2011-07-01 15:39:53 -07:00
scm.c Allow passing O_PATH descriptors via SCM_RIGHTS datagrams 2011-03-15 02:21:45 -04:00
skbuff.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 2011-05-20 13:43:21 -07:00
sock.c core: add tracepoints for queueing skb to rcvbuf 2011-06-21 16:06:10 -07:00
stream.c net: Fix the condition passed to sk_wait_event() 2010-10-03 20:41:32 -07:00
sysctl_net_core.c net: Kill ratelimit.h dependency in linux/net.h 2011-05-27 13:41:33 -04:00
timestamping.c net: export the receive time stamping hook for non-NAPI drivers 2011-06-20 13:56:53 -07:00
user_dma.c net/core/user_dma.c: Use frag list abstraction interfaces. 2009-06-09 00:19:10 -07:00
utils.c net: Kill ratelimit.h dependency in linux/net.h 2011-05-27 13:41:33 -04:00