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author | Johannes Berg <johannes@sipsolutions.net> | 2009-08-07 16:17:38 +0200 |
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committer | John W. Linville <linville@tuxdriver.com> | 2009-08-14 09:13:43 -0400 |
commit | f5ea9120be2e5d5c846243416cfdce01d02f5836 (patch) | |
tree | cade27e47a90dde79a523598b96a2ebb50770d2f /net/mac80211/ieee80211_i.h | |
parent | f401a6f7ede753e56b84025e7d2db0d5ef560ce6 (diff) | |
download | linux-f5ea9120be2e5d5c846243416cfdce01d02f5836.tar.gz linux-f5ea9120be2e5d5c846243416cfdce01d02f5836.tar.bz2 linux-f5ea9120be2e5d5c846243416cfdce01d02f5836.zip |
nl80211: add generation number to all dumps
In order for userspace to be able to figure out whether
it obtained a consistent snapshot of data or not when
using netlink dumps, we need to have a generation number
in each dump message that indicates whether the list has
changed or not -- its value is arbitrary.
This patch adds such a number to all dumps, this needs
some mac80211 involvement to keep track of a generation
number to start with when adding/removing mesh paths or
stations.
The wiphy and netdev lists can be fully handled within
cfg80211, of course, but generation numbers need to be
stored there as well.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/ieee80211_i.h')
-rw-r--r-- | net/mac80211/ieee80211_i.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 989591787aee..99433222bc5c 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -678,6 +678,7 @@ struct ieee80211_local { struct list_head sta_list; struct sta_info *sta_hash[STA_HASH_SIZE]; struct timer_list sta_cleanup; + int sta_generation; struct sk_buff_head pending[IEEE80211_MAX_QUEUES]; struct tasklet_struct tx_pending_tasklet; |