diff options
| author | Bob Pearson <rpearsonhpe@gmail.com> | 2021-08-13 16:06:26 -0500 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com> | 2021-08-19 20:11:16 -0300 |
| commit | 65a81b61d8c5e96748671824cc46339afbd831d0 (patch) | |
| tree | 51fd7ed863c378a2cbe38e4af7055dc2744341b4 /drivers/infiniband | |
| parent | a036ad088306a88de87e973981f2b9224e466c3f (diff) | |
| download | linux-65a81b61d8c5e96748671824cc46339afbd831d0.tar.bz2 | |
RDMA/rxe: Fix memory allocation while in a spin lock
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 ("RDMA/rxe: Remove RXE_POOL_ATOMIC")
Link: https://lore.kernel.org/r/20210813210625.4484-1-rpearsonhpe@gmail.com
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Bob Pearson <rpearsonhpe@gmail.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'drivers/infiniband')
| -rw-r--r-- | drivers/infiniband/sw/rxe/rxe_mcast.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/infiniband/sw/rxe/rxe_mcast.c b/drivers/infiniband/sw/rxe/rxe_mcast.c index 0ea9a5aa4ec0..1c1d1b53312d 100644 --- a/drivers/infiniband/sw/rxe/rxe_mcast.c +++ b/drivers/infiniband/sw/rxe/rxe_mcast.c @@ -85,7 +85,7 @@ int rxe_mcast_add_grp_elem(struct rxe_dev *rxe, struct rxe_qp *qp, goto out; } - elem = rxe_alloc(&rxe->mc_elem_pool); + elem = rxe_alloc_locked(&rxe->mc_elem_pool); if (!elem) { err = -ENOMEM; goto out; |