Commit 09927e7e authored by Xiubo Li's avatar Xiubo Li Committed by Ilya Dryomov
Browse files

ceph: break the check delayed cap loop every 5s 

In some cases this may take a long time and will block renewing
the caps to MDS.

[ idryomov: massage comment ]

Link: https://tracker.ceph.com/issues/50223#note-21


Signed-off-by: default avatarXiubo Li <xiubli@redhat.com>
Reviewed-by: default avatarIlya Dryomov <idryomov@gmail.com>
Signed-off-by: default avatarIlya Dryomov <idryomov@gmail.com>
parent e8f897f4

fs/ceph/caps.c

+8 −0
Original line number Diff line number Diff line
@@ -4634,6 +4634,14 @@ unsigned long ceph_check_delayed_caps(struct ceph_mds_client *mdsc) 
			iput(inode);

			spin_lock(&mdsc->cap_delay_lock);

		}



		/*

		 * Make sure too many dirty caps or general

		 * slowness doesn't block mdsc delayed work,

		 * preventing send_renew_caps() from running.

		 */

		if (jiffies - loop_start >= 5 * HZ)

			break;

	}

	spin_unlock(&mdsc->cap_delay_lock);

	doutc(cl, "done\n");