[PATCH 4/4] Revert "scsi, block: fix duplicate bdi name registration crashes"

2017-03-09 Thread Jan Kara
This reverts commit 0dba1314d4f81115dce711292ec7981d17231064. It causes leaking of device numbers for SCSI when SCSI registers multiple gendisks for one request_queue in succession. It can be easily reproduced using Omar's script [1] on kernel with CONFIG_DEBUG_TEST_DRIVER_REMOVE. Furthermore the p

Re: [PATCH 4/4] Revert "scsi, block: fix duplicate bdi name registration crashes"

2017-03-08 Thread Dan Williams
On Wed, Mar 8, 2017 at 8:48 AM, Jan Kara wrote: > This reverts commit 0dba1314d4f81115dce711292ec7981d17231064. It causes > leaking of device numbers for SCSI when SCSI registers multiple gendisks > for one request_queue in succession. It can be easily reproduced using > Omar's script [1] on kerne

[PATCH 4/4] Revert "scsi, block: fix duplicate bdi name registration crashes"

2017-03-08 Thread Jan Kara
This reverts commit 0dba1314d4f81115dce711292ec7981d17231064. It causes leaking of device numbers for SCSI when SCSI registers multiple gendisks for one request_queue in succession. It can be easily reproduced using Omar's script [1] on kernel with CONFIG_DEBUG_TEST_DRIVER_REMOVE. Furthermore the p