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| author |   Johannes Berg <johannes@sipsolutions.net> | 2007-09-18 17:29:21 -0400 |
|---|---|---|
| committer |   David S. Miller <davem@sunset.davemloft.net> | 2007-10-10 16:53:00 -0700 |
| commit | 79010420cc3f78eab911598bfdd29c4b06a83e1f (patch) | |
| tree | a9031164d7944f8aa90a455d297780b241f3d865 /block | |
| parent | [PATCH] mac80211: remove crypto algorithm typedef (diff) | |
| download | linux-dev-79010420cc3f78eab911598bfdd29c4b06a83e1f.tar.xz linux-dev-79010420cc3f78eab911598bfdd29c4b06a83e1f.zip | |
[PATCH] mac80211: fix virtual interface locking
Florian Lohoff noticed a bug in mac80211: when bringing the
master interface down while other virtual interfaces are up
we call dev_close() under a spinlock which is not allowed.
This patch removes the sub_if_lock used by mac80211 in favour
of using an RCU list. All list manipulations are already done
under rtnl so are well protected against each other, and the
read-side locks we took in the RX and TX code are already in
RCU read-side critical sections.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Cc: Florian Lohoff <flo@rfc822.org>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Michal Piotrowski <michal.k.k.piotrowski@gmail.com>
Cc: Satyam Sharma <satyam@infradead.org>
Signed-off-by: Michael Wu <flamingice@sourmilk.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'block')
0 files changed, 0 insertions, 0 deletions