| commit | b2af9cb06d4de1b507ec0fd779ec2ecedee1480a | |
| author | Dhananjay Phadke <dhananjay@netxen.com> | |
| Fri, 17 Jul 2009 15:27:07 +0000 (17 15:27 +0000) | ||
| committer | David S. Miller <davem@davemloft.net> | |
| Mon, 20 Jul 2009 15:23:31 +0000 (20 08:23 -0700) | ||
| tree | 15967d7eaee2636e6c29d15d96dd57e99c0a6ee9 | treesnapshot (tar.gz zip) |
| parent | cf981ffb31e8f41f4899a56560f81322f94f22d1 | commitdiff |
netxen: fix deadlock on dev close
netxen: fix deadlock on dev close
The tx ring accounting fix in commit cb2107be43d2fc5eadec58b92b
("netxen: fix tx ring accounting") introduced intermittent
deadlock when inteface is going down.
This was possibly combined effect of speculative tx pause,
calling netif_tx_lock instead of queue lock and unclean
synchronization with napi which could end up unmasking
interrupt.
Signed-off-by: Dhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
netxen: fix deadlock on dev close
The tx ring accounting fix in commit cb2107be43d2fc5eadec58b92b
("netxen: fix tx ring accounting") introduced intermittent
deadlock when inteface is going down.
This was possibly combined effect of speculative tx pause,
calling netif_tx_lock instead of queue lock and unclean
synchronization with napi which could end up unmasking
interrupt.
Signed-off-by: Dhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: David S. Miller <davem@davemloft.net>