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/openbmc/linux/drivers/scsi/lpfc/ |
H A D | lpfc_nvmet.c | 3386f4bd Mon Nov 20 18:00:41 CST 2017 James Smart <jsmart2021@gmail.com> scsi: lpfc: Fix crash during driver unload with running nvme traffic
When the driver is unloading, the nvme transport could be in the process of submitting new requests, will send abort requests to terminate associations, or may make LS-related requests. The driver's abort and request entry points currently is ignorant of the unloading state and is starting the requests even though the infrastructure to complete them continues to teardown.
Change the entry points for new requests to check whether unloading and if so, reject the requests. Abort routines check unloading, and if so, noop the request. An abort is noop'd as the teardown paths are already aborting/terminating the io outstanding at the time the teardown initiated.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> 3386f4bd Mon Nov 20 18:00:41 CST 2017 James Smart <jsmart2021@gmail.com> scsi: lpfc: Fix crash during driver unload with running nvme traffic When the driver is unloading, the nvme transport could be in the process of submitting new requests, will send abort requests to terminate associations, or may make LS-related requests. The driver's abort and request entry points currently is ignorant of the unloading state and is starting the requests even though the infrastructure to complete them continues to teardown. Change the entry points for new requests to check whether unloading and if so, reject the requests. Abort routines check unloading, and if so, noop the request. An abort is noop'd as the teardown paths are already aborting/terminating the io outstanding at the time the teardown initiated. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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H A D | lpfc_nvme.c | 3386f4bd Mon Nov 20 18:00:41 CST 2017 James Smart <jsmart2021@gmail.com> scsi: lpfc: Fix crash during driver unload with running nvme traffic
When the driver is unloading, the nvme transport could be in the process of submitting new requests, will send abort requests to terminate associations, or may make LS-related requests. The driver's abort and request entry points currently is ignorant of the unloading state and is starting the requests even though the infrastructure to complete them continues to teardown.
Change the entry points for new requests to check whether unloading and if so, reject the requests. Abort routines check unloading, and if so, noop the request. An abort is noop'd as the teardown paths are already aborting/terminating the io outstanding at the time the teardown initiated.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> 3386f4bd Mon Nov 20 18:00:41 CST 2017 James Smart <jsmart2021@gmail.com> scsi: lpfc: Fix crash during driver unload with running nvme traffic When the driver is unloading, the nvme transport could be in the process of submitting new requests, will send abort requests to terminate associations, or may make LS-related requests. The driver's abort and request entry points currently is ignorant of the unloading state and is starting the requests even though the infrastructure to complete them continues to teardown. Change the entry points for new requests to check whether unloading and if so, reject the requests. Abort routines check unloading, and if so, noop the request. An abort is noop'd as the teardown paths are already aborting/terminating the io outstanding at the time the teardown initiated. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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