cephfs: Fixed a bug that read operation hung in Client::get_caps when the...

        Fixes: https://tracker.ceph.com/issues/65971
        Signed-off-by: Tod Chen <chentao.2022@bytedance.com>
(cherry picked from commit 7f723017454957f3e4e1dbb4613bcf94afa4151e)

diff --git a/src/client/Client.cc b/src/client/Client.cc
index 67a1f65b4f8ab8af8b053fbdc73179099b1058e8..f97bff9b9ad3e2e65c73c77dc3d186ee4fb4f33f 100644 (file)
--- a/src/client/Client.cc
+++ b/src/client/Client.cc
@@ -3620,6 +3620,9 @@ void Client::put_cap_ref(Inode *in, int cap)
     if (last & CEPH_CAP_FILE_CACHE) {
       ldout(cct, 5) << __func__ << " dropped last FILE_CACHE ref on " << *in << dendl;
       ++put_nref;
+
+      ldout(cct, 10) << __func__ << " calling signal_caps_inode" << dendl;
+      signal_caps_inode(in);
     }
     if (drop)
       check_caps(in, 0);