diff options
| author | wangyugui <wangyugui@e16-tech.com> | 2021-10-19 03:26:56 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-11-25 11:48:29 +0300 |
| commit | 21903226c724c4465d82dba5b677a831e71c82db (patch) | |
| tree | 8d9884667a82cb6e2c6ff10cfa724e0bc08d8856 | |
| parent | a9d2d23b5032ec0476d2724fa9c6dca3a1338b09 (diff) | |
| download | linux-21903226c724c4465d82dba5b677a831e71c82db.tar.xz | |
RDMA/core: Use kvzalloc when allocating the struct ib_port
[ Upstream commit 911a81c9c7092bfd75432ce79b2ef879127ea065 ]
The 'struct attribute' flex array contains some struct lock_class_key's
which become big when lockdep is turned on. Big enough that some drivers
will not load when CONFIG_PROVE_LOCKING=y because they cannot allocate
enough memory:
WARNING: CPU: 36 PID: 8 at mm/page_alloc.c:5350 __alloc_pages+0x27e/0x3e0
Call Trace:
kmalloc_order+0x2a/0xb0
kmalloc_order_trace+0x19/0xf0
__kmalloc+0x231/0x270
ib_setup_port_attrs+0xd8/0x870 [ib_core]
ib_register_device+0x419/0x4e0 [ib_core]
bnxt_re_task+0x208/0x2d0 [bnxt_re]
Link: https://lore.kernel.org/r/20211019002656.17745-1-wangyugui@e16-tech.com
Signed-off-by: wangyugui <wangyugui@e16-tech.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/infiniband/core/sysfs.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/infiniband/core/sysfs.c b/drivers/infiniband/core/sysfs.c index 6146c3c1cbe5..8d709986b88c 100644 --- a/drivers/infiniband/core/sysfs.c +++ b/drivers/infiniband/core/sysfs.c @@ -757,7 +757,7 @@ static void ib_port_release(struct kobject *kobj) if (port->hw_stats_data) kfree(port->hw_stats_data->stats); kfree(port->hw_stats_data); - kfree(port); + kvfree(port); } static void ib_port_gid_attr_release(struct kobject *kobj) @@ -1189,7 +1189,7 @@ static struct ib_port *setup_port(struct ib_core_device *coredev, int port_num, struct ib_port *p; int ret; - p = kzalloc(struct_size(p, attrs_list, + p = kvzalloc(struct_size(p, attrs_list, attr->gid_tbl_len + attr->pkey_tbl_len), GFP_KERNEL); if (!p) |