Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=22747d6b41f31c71abc2b351bc9f6bfa6bae5d5e
Commit: 22747d6b41f31c71abc2b351bc9f6bfa6bae5d5e
Parent: 83cbb4d2577174e27a91e63a47a2a27c3af50d4e
Author: Francois Romieu <[EMAIL PROTECTED]>
AuthorDate: Thu Feb 15 23:37:50 2007 +0100
Committer: Jeff Garzik <[EMAIL PROTECTED]>
CommitDate: Tue Feb 20 11:18:13 2007 -0500
s2io: RTNL and flush_scheduled_work deadlock
Mantra: don't use flush_scheduled_work with RTNL held.
Signed-off-by: Francois Romieu <[EMAIL PROTECTED]>
Signed-off-by: Jeff Garzik <[EMAIL PROTECTED]>
---
drivers/net/s2io.c | 21 ++++++++++++++++++---
1 files changed, 18 insertions(+), 3 deletions(-)
diff --git a/drivers/net/s2io.c b/drivers/net/s2io.c
index e8e0d94..fd85648 100644
--- a/drivers/net/s2io.c
+++ b/drivers/net/s2io.c
@@ -3758,7 +3758,6 @@ static int s2io_close(struct net_device *dev)
{
struct s2io_nic *sp = dev->priv;
- flush_scheduled_work();
netif_stop_queue(dev);
/* Reset card, kill tasklet and free Tx and Rx buffers. */
s2io_card_down(sp);
@@ -5847,9 +5846,14 @@ static void s2io_set_link(struct work_struct *work)
register u64 val64;
u16 subid;
+ rtnl_lock();
+
+ if (!netif_running(dev))
+ goto out_unlock;
+
if (test_and_set_bit(0, &(nic->link_state))) {
/* The card is being reset, no point doing anything */
- return;
+ goto out_unlock;
}
subid = nic->pdev->subsystem_device;
@@ -5903,6 +5907,9 @@ static void s2io_set_link(struct work_struct *work)
s2io_link(nic, LINK_DOWN);
}
clear_bit(0, &(nic->link_state));
+
+out_unlock:
+ rtnl_lock();
}
static int set_rxd_buffer_pointer(struct s2io_nic *sp, struct RxD_t *rxdp,
@@ -6356,6 +6363,11 @@ static void s2io_restart_nic(struct work_struct *work)
struct s2io_nic *sp = container_of(work, struct s2io_nic,
rst_timer_task);
struct net_device *dev = sp->dev;
+ rtnl_lock();
+
+ if (!netif_running(dev))
+ goto out_unlock;
+
s2io_card_down(sp);
if (s2io_card_up(sp)) {
DBG_PRINT(ERR_DBG, "%s: Device bring up failed\n",
@@ -6364,7 +6376,8 @@ static void s2io_restart_nic(struct work_struct *work)
netif_wake_queue(dev);
DBG_PRINT(ERR_DBG, "%s: was reset by Tx watchdog timer\n",
dev->name);
-
+out_unlock:
+ rtnl_unlock();
}
/**
@@ -7173,6 +7186,8 @@ static void __devexit s2io_rem_nic(struct pci_dev *pdev)
return;
}
+ flush_scheduled_work();
+
sp = dev->priv;
unregister_netdev(dev);
-
To unsubscribe from this list: send the line "unsubscribe git-commits-head" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at http://vger.kernel.org/majordomo-info.html
