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572a103ded
linux/net
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Herbert Xu 572a103ded [NET] link_watch: Move link watch list into net_device 
These days the link watch mechanism is an integral part of the
network subsystem as it manages the carrier status.  So it now
makes sense to allocate some memory for it in net_device rather
than allocating it on demand.

In fact, this is necessary because we can't tolerate a memory
allocation failure since that means we'd have to potentially
throw a link up event away.

It also simplifies the code greatly.

In doing so I discovered a subtle race condition in the use
of singleevent.  This race condition still exists (and is
somewhat magnified) without singleevent but it's now plugged
thanks to an smp_mb__before_clear_bit.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-05-10 23:45:07 -07:00
..
802 [NET]: cleanup extra semicolons 2007-04-25 22:29:24 -07:00
8021q [NET]: Rework dev_base via list_head (v3) 2007-05-03 15:13:45 -07:00
appletalk header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
atm [NET]: SPIN_LOCK_UNLOCKED cleanup in drivers/atm, net 2007-04-26 01:37:44 -07:00
ax25 [S390] Kconfig: unwanted menus for s390. 2007-05-10 15:46:07 +02:00
bluetooth [Bluetooth] Switch to using input_dev->dev.parent 2007-05-10 23:45:03 -07:00
bridge header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
core [NET] link_watch: Move link watch list into net_device 2007-05-10 23:45:07 -07:00
dccp [NET]: SPIN_LOCK_UNLOCKED cleanup in drivers/atm, net 2007-04-26 01:37:44 -07:00
decnet Fix occurrences of "the the " 2007-05-09 08:57:56 +02:00
econet [SK_BUFF]: Convert skb->tail to sk_buff_data_t 2007-04-25 22:26:28 -07:00
ethernet [SK_BUFF]: Introduce skb_reset_mac_header(skb) 2007-04-25 22:24:32 -07:00
ieee80211 [PATCH] ieee80211: include frequency in scan results 2007-05-08 11:51:59 -04:00
ipv4 Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial 2007-05-09 12:54:17 -07:00
ipv6 Fix trivial typos in Kconfig* files 2007-05-09 07:12:20 +02:00
ipx header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
irda [S390] Kconfig: unwanted menus for s390. 2007-05-10 15:46:07 +02:00
iucv Add suspend-related notifications for CPU hotplug 2007-05-09 12:30:56 -07:00
key [NET]: cleanup extra semicolons 2007-04-25 22:29:24 -07:00
lapb [PATCH] remove many unneeded #includes of sched.h 2007-02-14 08:09:54 -08:00
llc Fix occurrences of "the the " 2007-05-09 08:57:56 +02:00
mac80211 [MAC80211]: Add debugfs attributes. 2007-05-05 11:46:38 -07:00
netfilter Fix occurrences of "the the " 2007-05-09 08:57:56 +02:00
netlabel SELinux: extract the NetLabel SELinux support from the security server 2007-04-26 01:35:48 -04:00
netlink header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
netrom [NET]: Rework dev_base via list_head (v3) 2007-05-03 15:13:45 -07:00
packet [AF_PACKET]: Add option to return orig_dev to userspace. 2007-04-25 22:29:14 -07:00
rfkill [NET]: rfkill: add support for input key to control wireless radio 2007-05-07 00:34:20 -07:00
rose [NET]: Rework dev_base via list_head (v3) 2007-05-03 15:13:45 -07:00
rxrpc AF_RXRPC: reduce debugging noise 2007-05-10 09:26:52 -07:00
sched [NET]: Rework dev_base via list_head (v3) 2007-05-03 15:13:45 -07:00
sctp Fix occurrences of "the the " 2007-05-09 08:57:56 +02:00
sunrpc sunrpc: fix crash in rpc_malloc() 2007-05-09 17:58:00 -04:00
tipc Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild 2007-05-06 13:21:57 -07:00
unix header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
wanrouter [SK_BUFF]: Introduce skb_copy_to_linear_data{_offset} 2007-04-25 22:28:29 -07:00
wireless [WIRELESS] cfg80211: Clarify locking comment. 2007-04-26 20:51:12 -07:00
x25 header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
xfrm [XFRM] SPD info TLV aggregation 2007-05-04 12:55:39 -07:00
compat.c [NET]: Adding SO_TIMESTAMPNS / SCM_TIMESTAMPNS support 2007-04-25 22:24:21 -07:00
Kconfig [S390] Kconfig: no wireless on s390. 2007-05-10 15:46:08 +02:00
Makefile [NET]: rfkill: add support for input key to control wireless radio 2007-05-07 00:34:20 -07:00
nonet.c [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
socket.c VFS: delay the dentry name generation on sockets and pipes 2007-05-08 11:15:03 -07:00
sysctl_net.c Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
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