From: Jack Wang <jinpu.wang@cloud.ionos.com>
Date: Thu, 17 Dec 2020 15:19:00 +0100
Subject: RDMA/rtrs-srv: Use sysfs_remove_file_self for disconnect
Patch-mainline: v5.12-rc1
Git-commit: f991fdac813f1598a9bb17b602ce04812ba9148c
References: jsc#SLE-15176
Remove self first to avoid deadlock, we don't want to
use close_work to remove sess sysfs.
Fixes: 91b11610af8d ("RDMA/rtrs: server: sysfs interface functions")
Link: https://lore.kernel.org/r/20201217141915.56989-5-jinpu.wang@cloud.ionos.com
Signed-off-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Tested-by: Lutz Pogrell <lutz.pogrell@cloud.ionos.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
drivers/infiniband/ulp/rtrs/rtrs-srv-sysfs.c | 2 ++
1 file changed, 2 insertions(+)
--- a/drivers/infiniband/ulp/rtrs/rtrs-srv-sysfs.c
+++ b/drivers/infiniband/ulp/rtrs/rtrs-srv-sysfs.c
@@ -53,6 +53,8 @@ static ssize_t rtrs_srv_disconnect_store
sockaddr_to_str((struct sockaddr *)&sess->s.dst_addr, str, sizeof(str));
rtrs_info(s, "disconnect for path %s requested\n", str);
+ /* first remove sysfs itself to avoid deadlock */
+ sysfs_remove_file_self(&sess->kobj, &attr->attr);
close_sess(sess);
return count;