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| author | Bart Van Assche <bart.vanassche@sandisk.com> | 2015-11-20 14:11:01 -0800 |
|---|---|---|
| committer | James Bottomley <JBottomley@Odin.com> | 2015-12-02 11:53:44 -0800 |
| commit | e619e6cbecb7fe97a924d625e848605333457b13 (patch) | |
| tree | 7ea5bbe715b8a571028dc83e6200428f8c14d48b | |
| parent | 8005c49d9aea74d382f474ce11afbbc7d7130bec (diff) | |
| download | op-kernel-dev-e619e6cbecb7fe97a924d625e848605333457b13.zip op-kernel-dev-e619e6cbecb7fe97a924d625e848605333457b13.tar.gz | |
Revert "scsi: Fix a bdi reregistration race"
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 <bart.vanassche@sandisk.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
| -rw-r--r-- | drivers/scsi/scsi_sysfs.c | 14 |
1 files 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); |
