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| author |   Jason Gunthorpe <jgg@mellanox.com> | 2020-05-06 10:46:52 +0300 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@mellanox.com> | 2020-05-12 21:32:52 -0300 |
| commit | f8f2a576cb0c574044c049210ea4096e5cb1d7fc (patch) | |
| tree | 6155036d861d419d0ba5ec3a03d6c4aec5eb8e53 /drivers/infiniband/core/addr.c | |
| parent | RDMA/hns: Combine enable flags of qp (diff) | |
| download | linux-dev-f8f2a576cb0c574044c049210ea4096e5cb1d7fc.tar.xz linux-dev-f8f2a576cb0c574044c049210ea4096e5cb1d7fc.zip | |
RDMA/addr: Mark addr_resolve as might_sleep()
Under one path through ib_nl_fetch_ha() this calls nlmsg_new(GFP_KERNEL)
which is a sleeping call. This is a very rare path, so mark fetch_ha() and
the module external entry point that conditionally calls through to
fetch_ha() as might_sleep().
Link: https://lore.kernel.org/r/20200506074701.9775-2-leon@kernel.org
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'drivers/infiniband/core/addr.c')
| -rw-r--r-- | drivers/infiniband/core/addr.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/infiniband/core/addr.c b/drivers/infiniband/core/addr.c index 1753a9801b70..3a98439bba83 100644 --- a/drivers/infiniband/core/addr.c +++ b/drivers/infiniband/core/addr.c @@ -371,6 +371,8 @@ static int fetch_ha(const struct dst_entry *dst, struct rdma_dev_addr *dev_addr, (const void *)&dst_in6->sin6_addr; sa_family_t family = dst_in->sa_family; + might_sleep(); + /* If we have a gateway in IB mode then it must be an IB network */ if (has_gateway(dst, family) && dev_addr->network == RDMA_NETWORK_IB) return ib_nl_fetch_ha(dev_addr, daddr, seq, family); @@ -727,6 +729,8 @@ int roce_resolve_route_from_path(struct sa_path_rec *rec, struct rdma_dev_addr dev_addr = {}; int ret; + might_sleep(); + if (rec->roce.route_resolved) return 0; |