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linux/drivers/s390
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Julian Wiedmann 04310324c6 s390/qdio: handle PENDING state for QEBSM devices 
When a CQ-enabled device uses QEBSM for SBAL state inspection,
get_buf_states() can return the PENDING state for an Output Queue.
get_outbound_buffer_frontier() isn't prepared for this, and any PENDING
buffer will permanently stall all further completion processing on this
Queue.

This isn't a concern for non-QEBSM devices, as get_buf_states() for such
devices will manually turn PENDING buffers into EMPTY ones.

Fixes: 104ea556ee ("qdio: support asynchronous delivery of storage blocks")
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
2019-06-07 10:10:15 +02:00
..
block s390/Kconfig: pedantic cleanups 2019-06-04 15:03:46 +02:00
char s390/Kconfig: pedantic cleanups 2019-06-04 15:03:46 +02:00
cio s390/qdio: handle PENDING state for QEBSM devices 2019-06-07 10:10:15 +02:00
crypto s390/zcrypt: support special flagged EP11 cprbs 2019-06-07 10:09:55 +02:00
net s390/Kconfig: pedantic cleanups 2019-06-04 15:03:46 +02:00
scsi scsi: zfcp: fix to prevent port_remove with pure auto scan LUNs (only sdevs) 2019-05-29 21:52:31 -04:00
virtio virtio: fixes, features 2019-05-14 14:12:59 -07:00
Makefile