mirrors/scst
1
0
Fork 0
mirror of https://github.com/SCST-project/scst.git synced 2026-05-18 11:11:27 +00:00
Code Issues Packages Projects Releases Wiki Activity

qla2x00t-32gbit: Initialize free_work before flushing it

Browse Source 
Target creation triggers a new BUG_ON introduced in in commit 4d43d395fed1
("workqueue: Try to catch flush_work() without INIT_WORK().").  The BUG_ON
reveals an attempt to flush free_work in qla24xx_do_nack_work before it's
initialized in qlt_unreg_sess:

  WARNING: CPU: 7 PID: 211 at kernel/workqueue.c:3031 __flush_work.isra.38+0x40/0x2e0
  CPU: 7 PID: 211 Comm: kworker/7:1 Kdump: loaded Tainted: G            E     5.3.0-rc7-vanilla+ #2
  Workqueue: qla2xxx_wq qla2x00_iocb_work_fn [qla2xxx]
  NIP [c000000000159620] __flush_work.isra.38+0x40/0x2e0
  LR [c0080000009d91b0] qla24xx_do_nack_work+0x88/0x180 [qla2xxx]
  Call Trace:
  [c000000005f3f9c0] [c000000000159644] __flush_work.isra.38+0x64/0x2e0 (unreliable)
  [c000000005f3fa50] [c0080000009d91a0] qla24xx_do_nack_work+0x78/0x180 [qla2xxx]
  [c000000005f3fae0] [c0080000009496ec] qla2x00_do_work+0x604/0xb90 [qla2xxx]
  [c000000005f3fc40] [c008000000949cd8] qla2x00_iocb_work_fn+0x60/0xe0 [qla2xxx]
  [c000000005f3fc80] [c000000000157bb8] process_one_work+0x2c8/0x5b0
  [c000000005f3fd10] [c000000000157f28] worker_thread+0x88/0x660
  [c000000005f3fdb0] [c000000000161d64] kthread+0x1a4/0x1b0
  [c000000005f3fe20] [c00000000000b960] ret_from_kernel_thread+0x5c/0x7c

Fixes: 1021f0bc2f3d6 ("scsi: qla2xxx: allow session delete to finish before create.")
Cc: Quinn Tran <qutran@marvell.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20191125165702.1013-4-r.bolshakov@yadro.com
Acked-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Tested-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Roman Bolshakov <r.bolshakov@yadro.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

[ commit 4c86b037a6db3ad2922ef3ba8a8989eb7794e040 upstream ]


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@8731 d57e44dd-8a1f-0410-8b47-8ef2f437770f
This commit is contained in:
Bart Van Assche
2019-12-26 00:30:18 +00:00
parent 5bab3ecb99
commit d0a1eb9612
2 changed files with 1 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
qla2x00t-32gbit/qla_init.c
View File

@@ -4852,6 +4852,7 @@ qla2x00_alloc_fcport(scsi_qla_host_t *vha, gfp_t flags)
}
INIT_WORK(&fcport->del_work, qla24xx_delete_sess_fn);
INIT_WORK(&fcport->free_work, qlt_free_session_done);
INIT_WORK(&fcport->reg_work, qla_register_fcport_fn);
INIT_LIST_HEAD(&fcport->gnl_entry);
INIT_LIST_HEAD(&fcport->list);

1
qla2x00t-32gbit/qla_target.c
View File

@@ -1399,7 +1399,6 @@ static struct fc_port *qlt_create_sess(
}
INIT_WORK(&sess->del_work, qla24xx_delete_sess_fn);
INIT_WORK(&sess->free_work, qlt_free_session_done);
spin_lock_irqsave(&ha->tgt.sess_lock, flags);
if (!IS_SW_RESV_ADDR(sess->d_id))