mac80211: add interface list lock

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Using only the RTNL has a number of problems, most notably that
ieee80211_iterate_active_interfaces() and other interface list
traversals cannot be done from the internal workqueue because it
needs to be flushed under the RTNL.

This patch introduces a new mutex that protects the interface list
against modifications. A more detailed explanation is part of the
code change.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

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This commit is contained in:

Johannes Berg 2009-01-23 22:54:03 +01:00 • committed by John W. Linville

parent 506d03f97d

commit c771c9d8da

5 changed files with 40 additions and 5 deletions

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5

include/net/mac80211.h

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2

net/mac80211/ieee80211_i.h

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31

net/mac80211/iface.c

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3

net/mac80211/main.c

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4

net/mac80211/util.c

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