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Vasu Dev 061446a159 [SCSI] libfc: flush lport worker after its disabled 
The lport could get timeout armed while its getting disabled,
so flush lport worker after its disabled and ignore lport
retry in that case instead of WARN_ON.

 [13192.936858] WARNING: at drivers/scsi/libfc/fc_lport.c:1573 fc_lport_timeout+0x53/0xa9 [libfc]()
 [13192.938026] Hardware name: Bochs
 [13192.938620] Modules linked in: fcoe libfcoe libfc scsi_transport_fc scsi_tgt fuse 8021q garp stp llc sunrpc ipv6 uinput microcode joydev pcspkr ixgbe e1000 i2c_piix4 i2c_core virtio_balloon dca mdio virtio_blk virtio_pci virtio_ring virtio floppy [last unloaded: speedstep_lib]
 [13192.942589] Pid: 23605, comm: kworker/0:6 Tainted: G        W    3.2.0+ #71
 [13192.943587] Call Trace:
 [13192.944052]  [<ffffffff810403f4>] warn_slowpath_common+0x85/0x9d
 [13192.944940]  [<ffffffff81040426>] warn_slowpath_null+0x1a/0x1c
 [13192.945734]  [<ffffffffa02746eb>] fc_lport_timeout+0x53/0xa9 [libfc]
 [13192.946665]  [<ffffffff81058d88>] process_one_work+0x20c/0x3ad
 [13192.947541]  [<ffffffff81058cbe>] ? process_one_work+0x142/0x3ad
 [13192.948423]  [<ffffffffa0274698>] ? fc_lport_enter_ns+0x178/0x178 [libfc]
 [13192.949363]  [<ffffffff8105a313>] worker_thread+0xfd/0x181
 [13192.950191]  [<ffffffff8105a216>] ? manage_workers.clone.15+0x173/0x173
 [13192.951100]  [<ffffffff8105e19b>] kthread+0xa4/0xac
 [13192.951755]  [<ffffffff814edbb4>] kernel_thread_helper+0x4/0x10
 [13192.952520]  [<ffffffff814e5cb4>] ? retint_restore_args+0x13/0x13
 [13192.953398]  [<ffffffff8105e0f7>] ? __init_kthread_worker+0x5b/0x5b
 [13192.954278]  [<ffffffff814edbb0>] ? gs_change+0x13/0x13
 [13192.954911] ---[ end trace 9763213b95bbd803 ]---

Signed-off-by: Vasu Dev <vasu.dev@intel.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Tested-by: Ross Brattain <ross.b.brattain@intel.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
 		2012-05-10 08:59:25 +01:00
..
Makefile
…
fc_disc.c [SCSI] libfc: Handle discovery failure during ctlr link down 2012-02-19 09:27:26 -06:00
fc_elsct.c [SCSI] libfc: Make the libfc Common Transport(CT) code generic 2012-02-19 08:08:58 -06:00
fc_exch.c [SCSI] libfc: fcoe_transport_create fails in single-CPU environment 2012-03-28 09:33:04 +01:00
fc_fcp.c Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2012-03-22 12:38:04 -07:00
fc_frame.c
…
fc_libfc.c scsi: remove the second argument of k[un]map_atomic() 2012-03-20 21:48:19 +08:00
fc_libfc.h scsi: remove the second argument of k[un]map_atomic() 2012-03-20 21:48:19 +08:00
fc_lport.c [SCSI] libfc: flush lport worker after its disabled 2012-05-10 08:59:25 +01:00
fc_npiv.c
…
fc_rport.c
…