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Johannes Berg a160ee69c6 wext: let get_wireless_stats() sleep ... A number of drivers (recently including cfg80211-based ones) assume that all wireless handlers, including statistics, can sleep and they often also implicitly assume that the rtnl is held around their invocation. This is almost always true now except when reading from sysfs: BUG: sleeping function called from invalid context at kernel/mutex.c:280 in_atomic(): 1, irqs_disabled(): 0, pid: 10450, name: head 2 locks held by head/10450: #0: (&buffer->mutex){+.+.+.}, at: [<c10ceb99>] sysfs_read_file+0x24/0xf4 #1: (dev_base_lock){++.?..}, at: [<c12844ee>] wireless_show+0x1a/0x4c Pid: 10450, comm: head Not tainted 2.6.32-rc3 #1 Call Trace: [<c102301c>] __might_sleep+0xf0/0xf7 [<c1324355>] mutex_lock_nested+0x1a/0x33 [<f8cea53b>] wdev_lock+0xd/0xf [cfg80211] [<f8cea58f>] cfg80211_wireless_stats+0x45/0x12d [cfg80211] [<c13118d6>] get_wireless_stats+0x16/0x1c [<c12844fe>] wireless_show+0x2a/0x4c Fix this by using the rtnl instead of dev_base_lock. Reported-by: Miles Lane <miles.lane@gmail.com> Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: David S. Miller <davem@davemloft.net>		16 years ago
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Makefile	…
datagram.c	net: skb ftracer - add tracepoint to skb_copy_datagram_iovec (v3)	16 years ago
dev.c	net: restore tx timestamping for accelerated vlans	16 years ago
dev_mcast.c	…
drop_monitor.c	net: drop_monitor: make last_rx timestamp private	16 years ago
dst.c	…
ethtool.c	net/ethtool: Add support for the ethtool feature to flash firmware image from a specified file.	16 years ago
fib_rules.c	net: Remove unused parameter from fill method in fib_rules_ops.	16 years ago
filter.c	…
flow.c	…
gen_estimator.c	net: restore gnet_stats_basic to previous definition	16 years ago
gen_stats.c	net: restore gnet_stats_basic to previous definition	16 years ago
iovec.c	net: Fix memcpy_toiovecend() to use the right offset	16 years ago
kmap_skb.h	…
link_watch.c	…
neighbour.c	neigh: Convert garbage collection from softirq to workqueue	16 years ago
net-sysfs.c	wext: let get_wireless_stats() sleep	16 years ago
net-sysfs.h	…
net-traces.c	Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6	16 years ago
net_namespace.c	Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6	16 years ago
netevent.c	…
netpoll.c	Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6	16 years ago
pktgen.c	pktgen: restore nanosec delays	16 years ago
request_sock.c	…
rtnetlink.c	net_sched: reintroduce dev->qdisc for use by sch_api	16 years ago
scm.c	…
skb_dma_map.c	net: skb_shared_info optimization	16 years ago
skbuff.c	net: remove unused skb->do_not_encrypt	16 years ago
sock.c	net: Fix sock_wfree() race	16 years ago
stream.c	tcp: tcp_prequeue() can use keyed wakeups	16 years ago
sysctl_net_core.c	…
user_dma.c	net/core/user_dma.c: Use frag list abstraction interfaces.	16 years ago
utils.c	net: core: remove unneeded include in net/core/utils.c.	16 years ago