The SCSI sd driver probes SCSI devices asynchronously. The sd_remove() function, called indirectly by device_del(), waits until asynchronous probing has finished. Since the block layer queue must only be cleaned up after probing has finished, device_del() has to be called before blk_cleanup_queue(). Hence revert commit bf2cf3baa20b.
Signed-off-by: Bart Van Assche <[email protected]> Cc: Hannes Reinecke <[email protected]> Cc: Aaro Koskinen <[email protected]> Cc: <[email protected]> --- drivers/scsi/scsi_sysfs.c | 14 +++----------- 1 file changed, 3 insertions(+), 11 deletions(-) diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c index 8d23122..f5ace2b 100644 --- a/drivers/scsi/scsi_sysfs.c +++ b/drivers/scsi/scsi_sysfs.c @@ -1110,7 +1110,9 @@ void __scsi_remove_device(struct scsi_device *sdev) device_unregister(&sdev->sdev_dev); transport_remove_device(dev); scsi_dh_remove_device(sdev); - } + device_del(dev); + } else + put_device(&sdev->sdev_dev); /* * Stop accepting new requests and wait until all queuecommand() and @@ -1121,16 +1123,6 @@ void __scsi_remove_device(struct scsi_device *sdev) blk_cleanup_queue(sdev->request_queue); cancel_work_sync(&sdev->requeue_work); - /* - * Remove the device after blk_cleanup_queue() has been called such - * a possible bdi_register() call with the same name occurs after - * blk_cleanup_queue() has called bdi_destroy(). - */ - if (sdev->is_visible) - device_del(dev); - else - put_device(&sdev->sdev_dev); - if (sdev->host->hostt->slave_destroy) sdev->host->hostt->slave_destroy(sdev); transport_destroy_device(dev); -- 2.1.4 -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
