ceph: add request to i_unsafe_dirops when getting unsafe reply
Previously we add request to i_unsafe_dirops when registering
request. So ceph_fsync() also waits for imcomplete requests.
This is unnecessary, ceph_fsync() only needs to wait unsafe
requests.
Signed-off-by: Yan, Zheng <zyan@redhat.com>
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index a7a967a..1e47a3d 100644
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -633,13 +633,8 @@
mdsc->oldest_tid = req->r_tid;
if (dir) {
- struct ceph_inode_info *ci = ceph_inode(dir);
-
ihold(dir);
- spin_lock(&ci->i_unsafe_lock);
req->r_unsafe_dir = dir;
- list_add_tail(&req->r_unsafe_dir_item, &ci->i_unsafe_dirops);
- spin_unlock(&ci->i_unsafe_lock);
}
}
@@ -665,13 +660,14 @@
rb_erase(&req->r_node, &mdsc->request_tree);
RB_CLEAR_NODE(&req->r_node);
- if (req->r_unsafe_dir) {
+ if (req->r_unsafe_dir && req->r_got_unsafe) {
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);
spin_unlock(&ci->i_unsafe_lock);
+ }
+ if (req->r_unsafe_dir) {
iput(req->r_unsafe_dir);
req->r_unsafe_dir = NULL;
}
@@ -2484,6 +2480,14 @@
} else {
req->r_got_unsafe = true;
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);