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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>
This commit is contained in:
Yan, Zheng 2015-10-27 17:18:00 +08:00 committed by Ilya Dryomov
parent cbf99a11fb
commit 4c06ace81a
1 changed files with 11 additions and 7 deletions
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18
fs/ceph/mds_client.c
View File

@ -633,13 +633,8 @@ 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);
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 @@ static void __unregister_request(struct ceph_mds_client *mdsc,
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 @@ static void handle_reply(struct ceph_mds_session *session, struct ceph_msg *msg)
} 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);