Re: [PATCH for-next] RDMA/rxe: Fix memory allocation while locked

On Fri, Aug 13, 2021 at 04:06:26PM -0500, Bob Pearson wrote:

rxe_mcast_add_grp_elem() in rxe_mcast.c calls rxe_alloc() while holding
spinlocks which in turn calls kzalloc(size, GFP_KERNEL) which is incorrect.
This patch replaces rxe_alloc() by rxe_alloc_locked() which uses GFP_ATOMIC.
This bug was caused by the below mentioned commit and failing to handle the
need for the atomic allocate.

Fixes: 4276fd0dddc9 ("Remove RXE_POOL_ATOMIC")
Reported-by: Dan Carpenter <redacted>
Signed-off-by: Bob Pearson <redacted>
---
 drivers/infiniband/sw/rxe/rxe_mcast.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Applied to for-rc, thanks

Jason