mac80211: RCU-ify STA info structure access

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This makes access to the STA hash table/list use RCU to protect
against freeing of items. However, it's not a true RCU, the
copy step is missing: whenever somebody changes a STA item it
is simply updated. This is an existing race condition that is
now somewhat understandable.

This patch also fixes the race key freeing vs. STA destruction
by making sure that sta_info_destroy() is always called under
RTNL and frees the key.

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 2008-02-25 16:27:46 +01:00 • committed by John W. Linville

parent 5cf121c3cd

commit d0709a6518

25 changed files with 701 additions and 486 deletions

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31

drivers/net/wireless/iwlwifi/iwl-3945-rs.c

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27

drivers/net/wireless/iwlwifi/iwl-4965-rs.c

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