diff options
| author | Hyunchul Lee <hyc.lee@gmail.com> | 2022-01-04 14:56:26 +0900 |
|---|---|---|
| committer | Steve French <stfrench@microsoft.com> | 2022-01-10 12:44:19 -0600 |
| commit | 99b7650ac51847e81b4d5139824e321e6cb76130 (patch) | |
| tree | 8273e7d478af119101f57dd156f11a39bec1f106 /fs/ksmbd/ksmbd_netlink.h | |
| parent | b589f5db6d4af8f14d70e31e1276b4c017668a26 (diff) | |
ksmbd: smbd: call rdma_accept() under CM handler
if CONFIG_LOCKDEP is enabled, the following
kernel warning message is generated because
rdma_accept() checks whehter the handler_mutex
is held by lockdep_assert_held. CM(Connection
Manager) holds the mutex before CM handler
callback is called.
[ 63.211405 ] WARNING: CPU: 1 PID: 345 at drivers/infiniband/core/cma.c:4405 rdma_accept+0x17a/0x350
[ 63.212080 ] RIP: 0010:rdma_accept+0x17a/0x350
...
[ 63.214036 ] Call Trace:
[ 63.214098 ] <TASK>
[ 63.214185 ] smb_direct_accept_client+0xb4/0x170 [ksmbd]
[ 63.214412 ] smb_direct_prepare+0x322/0x8c0 [ksmbd]
[ 63.214555 ] ? rcu_read_lock_sched_held+0x3a/0x70
[ 63.214700 ] ksmbd_conn_handler_loop+0x63/0x270 [ksmbd]
[ 63.214826 ] ? ksmbd_conn_alive+0x80/0x80 [ksmbd]
[ 63.214952 ] kthread+0x171/0x1a0
[ 63.215039 ] ? set_kthread_struct+0x40/0x40
[ 63.215128 ] ret_from_fork+0x22/0x30
To avoid this, move creating a queue pair and accepting
a client from transport_ops->prepare() to
smb_direct_handle_connect_request().
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Hyunchul Lee <hyc.lee@gmail.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Diffstat (limited to 'fs/ksmbd/ksmbd_netlink.h')
0 files changed, 0 insertions, 0 deletions