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mwifiex: remove_bss_prio_lock 

This patch does away with spinlock in
mwifiex_wmm_get_highest_priolist_ptr in order to improve TP.

Signed-off-by: Zhaoyang Liu <liuzy@marvell.com>
Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Zhaoyang Liu 2015-03-13 17:37:56 +05:30 committed by Kalle Valo
parent 39df5e8233
commit 690e792cb9
1 changed files with 2 additions and 9 deletions
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11
drivers/net/wireless/mwifiex/wmm.c
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@ -944,14 +944,11 @@ mwifiex_wmm_get_highest_priolist_ptr(struct mwifiex_adapter *adapter,
struct mwifiex_ra_list_tbl *ptr; struct mwifiex_ra_list_tbl *ptr;
struct mwifiex_tid_tbl *tid_ptr; struct mwifiex_tid_tbl *tid_ptr;
atomic_t *hqp; atomic_t *hqp;
unsigned long flags_bss, flags_ra; unsigned long flags_ra;
int i, j; int i, j;
/* check the BSS with highest priority first */ /* check the BSS with highest priority first */
for (j = adapter->priv_num - 1; j >= 0; --j) { for (j = adapter->priv_num - 1; j >= 0; --j) {
spin_lock_irqsave(&adapter->bss_prio_tbl[j].bss_prio_lock,
flags_bss);
/* iterate over BSS with the equal priority */ /* iterate over BSS with the equal priority */
list_for_each_entry(adapter->bss_prio_tbl[j].bss_prio_cur, list_for_each_entry(adapter->bss_prio_tbl[j].bss_prio_cur,
&adapter->bss_prio_tbl[j].bss_prio_head, &adapter->bss_prio_tbl[j].bss_prio_head,
@ -987,19 +984,15 @@ mwifiex_wmm_get_highest_priolist_ptr(struct mwifiex_adapter *adapter,
} }
} }
spin_unlock_irqrestore(&adapter->bss_prio_tbl[j].bss_prio_lock,
flags_bss);
} }
return NULL; return NULL;
found: found:
/* holds bss_prio_lock / ra_list_spinlock */ /* holds ra_list_spinlock */
if (atomic_read(hqp) > i) if (atomic_read(hqp) > i)
atomic_set(hqp, i); atomic_set(hqp, i);
spin_unlock_irqrestore(&priv_tmp->wmm.ra_list_spinlock, flags_ra); spin_unlock_irqrestore(&priv_tmp->wmm.ra_list_spinlock, flags_ra);
spin_unlock_irqrestore(&adapter->bss_prio_tbl[j].bss_prio_lock,
flags_bss);
*priv = priv_tmp; *priv = priv_tmp;
*tid = tos_to_tid[i]; *tid = tos_to_tid[i];