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linux/net/core
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David S. Miller 0a7606c121 [NET]: Fix race between poll_napi() and net_rx_action() 
netpoll_poll_lock() synchronizes the ->poll() invocation
code paths, but once we have the lock we have to make
sure that NAPI_STATE_SCHED is still set.  Otherwise we
get:

	cpu 0			cpu 1

	net_rx_action()		poll_napi()
	netpoll_poll_lock()	... spin on ->poll_lock
	->poll()
	  netif_rx_complete
	netpoll_poll_unlock()	acquire ->poll_lock()
				->poll()
				 netif_rx_complete()
				 CRASH

Based upon a bug report from Tina Yang.

Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-29 22:37:28 -07:00
..
datagram.c [NET]: Do not dereference iov if length is zero 2007-09-11 10:29:07 +02:00
dev_mcast.c [NET]: Marking struct pernet_operations __net_initdata was inappropriate 2007-10-26 22:54:53 -07:00
dev.c [NET]: Fix race between poll_napi() and net_rx_action() 2007-10-29 22:37:28 -07:00
dst.c [NET]: Make the loopback device per network namespace. 2007-10-10 16:52:49 -07:00
ethtool.c [ETHTOOL] Provide default behaviors for a few ethtool sub-ioctls 2007-10-10 16:51:17 -07:00
fib_rules.c [IPV4/IPV6/DECNET]: Small cleanup for fib rules. 2007-10-10 16:51:22 -07:00
filter.c [NET]: Fix bug in sk_filter race cures. 2007-10-18 21:48:39 -07:00
flow.c [NET]: Use BUILD_BUG_ON in net/core/flowi.c 2007-10-23 21:27:57 -07:00
gen_estimator.c remove asm/bitops.h includes 2007-10-19 11:53:41 -07:00
gen_stats.c [SK_BUFF]: Convert skb->tail to sk_buff_data_t 2007-04-25 22:26:28 -07:00
iovec.c [PATCH] remove many unneeded #includes of sched.h 2007-02-14 08:09:54 -08:00
kmap_skb.h [PATCH] severing skbuff.h -> highmem.h 2006-12-04 02:00:29 -05:00
link_watch.c [NET] link_watch: Always schedule urgent events 2007-05-10 23:45:28 -07:00
Makefile [NET]: Fix running without sysfs 2007-10-10 16:52:46 -07:00
neighbour.c [ATM]: Fix clip module reload crash. 2007-10-22 02:59:52 -07:00
net_namespace.c [NETNS]: Don't memset() netns to zero manually 2007-10-10 16:54:59 -07:00
net-sysfs.c [NET]: Remove in-code externs for some functions from net/core/dev.c 2007-10-23 21:27:56 -07:00
net-sysfs.h [NET]: Remove in-code externs for some functions from net/core/dev.c 2007-10-23 21:27:56 -07:00
netevent.c [NET]: net/core/netevent.c should #include <net/netevent.h> 2007-07-05 17:40:27 -07:00
netpoll.c [NET]: Fix race between poll_napi() and net_rx_action() 2007-10-29 22:37:28 -07:00
pktgen.c [NET]: Hide the queue_mapping field inside netif_subqueue_stopped 2007-10-22 02:59:56 -07:00
request_sock.c [NET]: Size listen hash tables using backlog hint 2006-12-02 21:21:44 -08:00
rtnetlink.c [NETNS]: Fix get_net_ns_by_pid 2007-10-26 22:56:12 -07:00
scm.c pid namespaces: changes to show virtual ids to user 2007-10-19 11:53:40 -07:00
skbuff.c [NET_CLS_ACT]: Use skb_act_clone 2007-10-26 02:47:54 -07:00
sock.c [NET]: Unexport sock_enable_timestamp(). 2007-10-26 03:59:45 -07:00
stream.c [NET] CORE: Fix whitespace errors. 2007-02-10 23:19:25 -08:00
sysctl_net_core.c [NET]: Don't declare extern variables in net/core/sysctl_net_core.c 2007-10-23 21:27:56 -07:00
user_dma.c [NET]: Revert sk_buff walker cleanups. 2007-04-27 15:21:23 -07:00
utils.c [NET] net/core/utils: fix sparse warning 2007-08-07 18:02:43 -07:00