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| author | Brian King <brking@linux.vnet.ibm.com> | 2010-08-05 16:38:31 -0500 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@suse.de> | 2010-08-06 12:26:33 -0500 |
| commit | d5da3040d798df4bbb62579b97f8b6b83749da22 (patch) | |
| tree | 96efaf510657b9be678a9a31c807988ca7ae3cdd /drivers/scsi/ibmvscsi/ibmvfc.h | |
| parent | 161155519c27773b8f35ee3d7a1b49acfc9eee73 (diff) | |
| download | linux-d5da3040d798df4bbb62579b97f8b6b83749da22.tar.gz linux-d5da3040d798df4bbb62579b97f8b6b83749da22.tar.bz2 linux-d5da3040d798df4bbb62579b97f8b6b83749da22.zip | |
[SCSI] ibmvfc: Fix rport add/delete race resulting in oops
Commit 43c8da907ccc656935d1085701f4db83385d8a59 introduced a race
condition which can occur when adding/deleting rports. There are
two possible threads now that can be deleting rports in the ibmvfc
driver, which can result in list_del being called twice, resulting
in an oops. This patch adds a new state to the ibmvfc_target struct
to indicate the target has been removed from the list and is in
the process of being deleted.
Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Diffstat (limited to 'drivers/scsi/ibmvscsi/ibmvfc.h')
| -rw-r--r-- | drivers/scsi/ibmvscsi/ibmvfc.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/scsi/ibmvscsi/ibmvfc.h b/drivers/scsi/ibmvscsi/ibmvfc.h index d7e8dcd90650..af48172112fa 100644 --- a/drivers/scsi/ibmvscsi/ibmvfc.h +++ b/drivers/scsi/ibmvscsi/ibmvfc.h @@ -597,6 +597,7 @@ enum ibmvfc_target_action { IBMVFC_TGT_ACTION_INIT, IBMVFC_TGT_ACTION_INIT_WAIT, IBMVFC_TGT_ACTION_DEL_RPORT, + IBMVFC_TGT_ACTION_DELETED_RPORT, }; struct ibmvfc_target { |