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authorJohannes Berg <johannes@sipsolutions.net>2008-02-25 10:27:46 -0500
committerJohn W. Linville <linville@tuxdriver.com>2008-03-06 15:30:46 -0500
commitd0709a65181beb787ef3f58cfe45536a2bb254c8 (patch)
tree29e5f36583b0e0a3f11b291347e57672eab41dad /net/mac80211/debugfs_sta.h
parent5cf121c3cdb955583bf0c5d28c992b7968a4aa1a (diff)
mac80211: RCU-ify STA info structure access
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>
Diffstat (limited to 'net/mac80211/debugfs_sta.h')
-rw-r--r--net/mac80211/debugfs_sta.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/net/mac80211/debugfs_sta.h b/net/mac80211/debugfs_sta.h
index 574a1cd54b96..8b608903259f 100644
--- a/net/mac80211/debugfs_sta.h
+++ b/net/mac80211/debugfs_sta.h
@@ -1,6 +1,8 @@
1#ifndef __MAC80211_DEBUGFS_STA_H 1#ifndef __MAC80211_DEBUGFS_STA_H
2#define __MAC80211_DEBUGFS_STA_H 2#define __MAC80211_DEBUGFS_STA_H
3 3
4#include "sta_info.h"
5
4#ifdef CONFIG_MAC80211_DEBUGFS 6#ifdef CONFIG_MAC80211_DEBUGFS
5void ieee80211_sta_debugfs_add(struct sta_info *sta); 7void ieee80211_sta_debugfs_add(struct sta_info *sta);
6void ieee80211_sta_debugfs_remove(struct sta_info *sta); 8void ieee80211_sta_debugfs_remove(struct sta_info *sta);