ceph: hold i_ceph_lock when removing caps for freeing inode
authorYan, Zheng <zyan@redhat.com>
Thu, 23 May 2019 03:01:37 +0000 (11:01 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sun, 4 Aug 2019 07:30:57 +0000 (09:30 +0200)
commit9b17512d9165668eb71c3d51e36ef8ab4c5f2edc
tree92f8a7692f962a4f24f9b4117ee6512adb2f9228
parentb6c3b6a2c66280a5a7c272adce5f30733de6bfc1
ceph: hold i_ceph_lock when removing caps for freeing inode

commit d6e47819721ae2d9d090058ad5570a66f3c42e39 upstream.

ceph_d_revalidate(, LOOKUP_RCU) may call __ceph_caps_issued_mask()
on a freeing inode.

Signed-off-by: "Yan, Zheng" <zyan@redhat.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
fs/ceph/caps.c