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[PATCHv2,for-next,04/19] RDMA/rtrs-srv: Use sysfs_remove_file_self for disconnect

Message ID 20201217141915.56989-5-jinpu.wang@cloud.ionos.com (mailing list archive)
State Accepted
Delegated to: Jason Gunthorpe
Headers show
Series Misc update for rtrs | expand

Commit Message

Jinpu Wang Dec. 17, 2020, 2:19 p.m. UTC 
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")
Signed-off-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Tested-by: Lutz Pogrell <lutz.pogrell@cloud.ionos.com>
---
 drivers/infiniband/ulp/rtrs/rtrs-srv-sysfs.c | 2 ++
 1 file changed, 2 insertions(+)
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Patch

diff --git a/drivers/infiniband/ulp/rtrs/rtrs-srv-sysfs.c b/drivers/infiniband/ulp/rtrs/rtrs-srv-sysfs.c
index d2edff3b8f0d..cca3a0acbabc 100644
--- a/drivers/infiniband/ulp/rtrs/rtrs-srv-sysfs.c
+++ b/drivers/infiniband/ulp/rtrs/rtrs-srv-sysfs.c
@@ -51,6 +51,8 @@  static ssize_t rtrs_srv_disconnect_store(struct kobject *kobj,
 	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;