RDMA/rxe: Check rxe_get() return value

Browse source

In the tasklets (completer, responder, and requester) check the return
value from rxe_get() to detect failures to get a reference.  This only
occurs if the qp has had its reference count drop to zero which indicates
that it no longer should be used.

The ref is never 0 today because the tasklets are flushed before the ref
is dropped. The next patch changes this so that the ref is dropped then
the tasklets are flushed.

Link: https://lore.kernel.org/r/20220421014042.26985-4-rpearsonhpe@gmail.com
Signed-off-by: Bob Pearson <rpearsonhpe@gmail.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

...

This commit is contained in:

Bob Pearson 2022-04-20 20:40:36 -05:00 • committed by Jason Gunthorpe

parent b2a41678fc

commit 4e05a4b329

3 changed files with 6 additions and 3 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

3

drivers/infiniband/sw/rxe/rxe_comp.c

View file

3

drivers/infiniband/sw/rxe/rxe_req.c

View file

3

drivers/infiniband/sw/rxe/rxe_resp.c

View file