diff mbox series

ceph: break the check delayed cap loop every 5s

Message ID 20240117044735.701196-1-xiubli@redhat.com (mailing list archive)
State New, archived
Headers show
Series ceph: break the check delayed cap loop every 5s | expand

Commit Message

Xiubo Li Jan. 17, 2024, 4:47 a.m. UTC 
From: Xiubo Li <xiubli@redhat.com>

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

URL: https://tracker.ceph.com/issues/50223#note-21
Signed-off-by: Xiubo Li <xiubli@redhat.com>
---
 fs/ceph/caps.c | 8 ++++++++
 1 file changed, 8 insertions(+)
diff mbox series

Patch

diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c
index ba94ad6d45fe..5501c86b337d 100644
--- a/fs/ceph/caps.c
+++ b/fs/ceph/caps.c
@@ -4647,6 +4647,14 @@  unsigned long ceph_check_delayed_caps(struct ceph_mds_client *mdsc)
 			iput(inode);
 			spin_lock(&mdsc->cap_delay_lock);
 		}
+
+		/*
+		 * Just in case too many dirty caps or slow
+		 * performance case won't block the delayed
+		 * work to renew the caps.
+		 */
+		if (jiffies - loop_start >= 5 * HZ)
+			break;
 	}
 	spin_unlock(&mdsc->cap_delay_lock);
 	doutc(cl, "done\n");