@@ -779,8 +779,13 @@ static void __register_request(struct ceph_mds_client *mdsc,
mdsc->oldest_tid = req->r_tid;
if (dir) {
+ struct ceph_inode_info *ci = ceph_inode(dir);
+
ihold(dir);
req->r_unsafe_dir = dir;
+ spin_lock(&ci->i_unsafe_lock);
+ list_add_tail(&req->r_unsafe_dir_item, &ci->i_unsafe_dirops);
+ spin_unlock(&ci->i_unsafe_lock);
}
}
@@ -808,8 +813,7 @@ static void __unregister_request(struct ceph_mds_client *mdsc,
erase_request(&mdsc->request_tree, req);
- if (req->r_unsafe_dir &&
- test_bit(CEPH_MDS_R_GOT_UNSAFE, &req->r_req_flags)) {
+ if (req->r_unsafe_dir) {
struct ceph_inode_info *ci = ceph_inode(req->r_unsafe_dir);
spin_lock(&ci->i_unsafe_lock);
list_del_init(&req->r_unsafe_dir_item);
@@ -2847,14 +2851,6 @@ static void handle_reply(struct ceph_mds_session *session, struct ceph_msg *msg)
} else {
set_bit(CEPH_MDS_R_GOT_UNSAFE, &req->r_req_flags);
list_add_tail(&req->r_unsafe_item, &req->r_session->s_unsafe);
- if (req->r_unsafe_dir) {
- struct ceph_inode_info *ci =
- ceph_inode(req->r_unsafe_dir);
- spin_lock(&ci->i_unsafe_lock);
- list_add_tail(&req->r_unsafe_dir_item,
- &ci->i_unsafe_dirops);
- spin_unlock(&ci->i_unsafe_lock);
- }
}
dout("handle_reply tid %lld result %d\n", tid, result);
When the unsafe reply to a request comes in, we put it on the r_unsafe_dir inode's list. In future patches, we're going to need to wait on requests that may not have gotten an unsafe reply yet. Change __register_request to put the entry on the dir inode's list when the pointer is set in the request. Fix replay_unsafe_requests to skip entries without the CEPH_MDS_R_GOT_UNSAFE flag. The only other place that uses this list is fsync codepath, and for that we'd want to wait on all operations whether the flag is set or not. Signed-off-by: Jeff Layton <jlayton@kernel.org> --- fs/ceph/mds_client.c | 16 ++++++---------- 1 file changed, 6 insertions(+), 10 deletions(-)