diff options
| author | David S. Miller <davem@davemloft.net> | 2010-12-10 09:50:47 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-12-10 09:50:47 -0800 |
| commit | 1e13f863ca88014d9550876c05c939fdab1017d1 (patch) | |
| tree | 1ede9804ee33d7eefb73e9535e0399dfd7f58c00 /net/mac80211/sta_info.h | |
| parent | f404c2fea37e02bec7c8b6edddf5edd22ca60505 (diff) | |
| parent | f435d9eea01309aa7b6c1f134569a7b5957918ae (diff) | |
Merge branch 'for-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6
Conflicts:
drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
Diffstat (limited to 'net/mac80211/sta_info.h')
| -rw-r--r-- | net/mac80211/sta_info.h | 29 |
1 files changed, 14 insertions, 15 deletions
diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h index b562d9b6a702..05f11302443b 100644 --- a/net/mac80211/sta_info.h +++ b/net/mac80211/sta_info.h @@ -81,13 +81,14 @@ enum ieee80211_sta_info_flags { * @stop_initiator: initiator of a session stop * @tx_stop: TX DelBA frame when stopping * - * This structure is protected by RCU and the per-station - * spinlock. Assignments to the array holding it must hold - * the spinlock, only the TX path can access it under RCU - * lock-free if, and only if, the state has the flag - * %HT_AGG_STATE_OPERATIONAL set. Otherwise, the TX path - * must also acquire the spinlock and re-check the state, - * see comments in the tx code touching it. + * This structure's lifetime is managed by RCU, assignments to + * the array holding it must hold the aggregation mutex. + * + * The TX path can access it under RCU lock-free if, and + * only if, the state has the flag %HT_AGG_STATE_OPERATIONAL + * set. Otherwise, the TX path must also acquire the spinlock + * and re-check the state, see comments in the tx code + * touching it. */ struct tid_ampdu_tx { struct rcu_head rcu_head; @@ -115,15 +116,13 @@ struct tid_ampdu_tx { * @rcu_head: RCU head used for freeing this struct * @reorder_lock: serializes access to reorder buffer, see below. * - * This structure is protected by RCU and the per-station - * spinlock. Assignments to the array holding it must hold - * the spinlock. + * This structure's lifetime is managed by RCU, assignments to + * the array holding it must hold the aggregation mutex. * - * The @reorder_lock is used to protect the variables and - * arrays such as @reorder_buf, @reorder_time, @head_seq_num, - * @stored_mpdu_num and @reorder_time from being corrupted by - * concurrent access of the RX path and the expired frame - * release timer. + * The @reorder_lock is used to protect the members of this + * struct, except for @timeout, @buf_size and @dialog_token, + * which are constant across the lifetime of the struct (the + * dialog token being used only for debugging). */ struct tid_ampdu_rx { struct rcu_head rcu_head; |