Hi Martin,
As explained in a recent LSF/MM topic proposal, it can happen that the SCSI
error handler calls .queuecommand() for a blocked SCSI device. SCSI LLDs do
not expect this. Hence this patch series. Please consider this series for
kernel v5.3.
Thanks,
Bart.
Changes compared to v2:
- Added a patch that converts SDEV_BLOCK into SDEV_QUIESCE for requests
received through sysfs to change the SCSI device state.
Changes compared to v1:
- Wait on SDEV_BLOCK instead of SDEV_QUIESCE in the SCSI error handler.
Bart Van Assche (3):
scsi: Do not allow user space to change the SCSI device state into
SDEV_BLOCK
scsi: Avoid that .queuecommand() gets called for a quiesced SCSI
device
RDMA/srp: Fix a sleep-in-invalid-context bug
drivers/infiniband/ulp/srp/ib_srp.c | 21 ++-------------------
drivers/scsi/scsi_error.c | 26 ++++++++++++++++++++++++--
drivers/scsi/scsi_sysfs.c | 7 +++++++
3 files changed, 33 insertions(+), 21 deletions(-)
--
2.22.0.rc3
