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| author |   Francois Romieu <romieu@fr.zoreil.com> | 2012-01-31 10:47:34 +0100 |
|---|---|---|
| committer | Francois Romieu <romieu@fr.zoreil.com> | 2012-01-31 14:32:40 +0100 |
| commit | 98ddf986fca17840e46e070354b7e2cd2169da15 (patch) | |
| tree | 520b59064cfb654b15d1491536112d41492f8fa1 | |
| parent | r8169: fix early queue wake-up. (diff) | |
| download | linux-dev-98ddf986fca17840e46e070354b7e2cd2169da15.tar.xz linux-dev-98ddf986fca17840e46e070354b7e2cd2169da15.zip | |
r8169: bh locking redux and task scheduling.
- atomic bit operations are globally visible
- pending status is always cleared before execution
- scheduled works are either idempotent or only required to happen once
after a series of originating events, say link events for instance
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Suggested-by: Michał Mirosław <mirqus@gmail.com>
Cc: Hayes Wang <hayeswang@realtek.com>
| -rw-r--r-- | drivers/net/ethernet/realtek/r8169.c | 20 |
1 files changed, 4 insertions, 16 deletions
diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c index 859554a03a09..118f6f6fcef3 100644 --- a/drivers/net/ethernet/realtek/r8169.c +++ b/drivers/net/ethernet/realtek/r8169.c @@ -3273,17 +3273,8 @@ out_mod_timer: static void rtl_schedule_task(struct rtl8169_private *tp, enum rtl_flag flag) { - spin_lock(&tp->lock); if (!test_and_set_bit(flag, tp->wk.flags)) schedule_work(&tp->wk.work); - spin_unlock(&tp->lock); -} - -static void rtl_schedule_task_bh(struct rtl8169_private *tp, enum rtl_flag flag) -{ - local_bh_disable(); - rtl_schedule_task(tp, flag); - local_bh_enable(); } static void rtl8169_phy_timer(unsigned long __opaque) @@ -3291,7 +3282,7 @@ static void rtl8169_phy_timer(unsigned long __opaque) struct net_device *dev = (struct net_device *)__opaque; struct rtl8169_private *tp = netdev_priv(dev); - rtl_schedule_task_bh(tp, RTL_FLAG_TASK_PHY_PENDING); + rtl_schedule_task(tp, RTL_FLAG_TASK_PHY_PENDING); } #ifdef CONFIG_NET_POLL_CONTROLLER @@ -5635,7 +5626,7 @@ static void rtl8169_pcierr_interrupt(struct net_device *dev) rtl8169_hw_reset(tp); - rtl_schedule_task_bh(tp, RTL_FLAG_TASK_RESET_PENDING); + rtl_schedule_task(tp, RTL_FLAG_TASK_RESET_PENDING); } static void rtl_tx(struct net_device *dev, struct rtl8169_private *tp) @@ -5852,7 +5843,7 @@ static void rtl_slow_event_work(struct rtl8169_private *tp) /* Work around for rx fifo overflow */ case RTL_GIGA_MAC_VER_11: netif_stop_queue(dev); - rtl_schedule_task_bh(tp, RTL_FLAG_TASK_RESET_PENDING); + rtl_schedule_task(tp, RTL_FLAG_TASK_RESET_PENDING); default: break; } @@ -5894,10 +5885,7 @@ static void rtl_task(struct work_struct *work) for (i = 0; i < ARRAY_SIZE(rtl_work); i++) { bool pending; - spin_lock_bh(&tp->lock); pending = test_and_clear_bit(rtl_work[i].bitnr, tp->wk.flags); - spin_unlock_bh(&tp->lock); - if (pending) rtl_work[i].action(tp); } @@ -6116,7 +6104,7 @@ static void __rtl8169_resume(struct net_device *dev) tp->wk.enabled = true; - rtl_schedule_task_bh(tp, RTL_FLAG_TASK_RESET_PENDING); + rtl_schedule_task(tp, RTL_FLAG_TASK_RESET_PENDING); } static int rtl8169_resume(struct device *device) |