Thread (6 messages) flat view 6 messages, 3 authors, 2021-03-25
STALE1983d

[PATCH 0/2] Fix EH race and MQ support

From: Tyrel Datwyler <tyreld@linux.ibm.com>
Date: 2021-03-19 20:51:47
Also in: linux-scsi, lkml

Changes to the locking pattern protecting the event lists and handling of scsi
command completion introduced a race where an ouststanding command that EH is
waiting ifor to complete is no longer identifiable by being on the sent list, but
instead as a command that is not on the free list. This is a result of moving
commands to be completed off the sent list to a private list to be completed
outside the list lock.

Second, during MQ enablement the ibmvfc_wait_for_ops helper used during EH to
ensure commands were properely completed failed to be converted to check for
commands on the sub-queues isntead of the primary CRQ.

Tyrel Datwyler (2):
  ibmvfc: fix potential race in ibmvfc_wait_for_ops
  ibmvfc: make ibmvfc_wait_for_ops MQ aware

 drivers/scsi/ibmvscsi/ibmvfc.c | 67 +++++++++++++++++++++++++++-------
 1 file changed, 54 insertions(+), 13 deletions(-)

-- 
2.27.0
Keyboard shortcuts
hback out one level
jnext message in thread
kprevious message in thread
ldrill in
Escclose help / fold thread tree
?toggle this help