ceph: add request to the tail of unsafe write list
authorHenry C Chang <henry.cy.chang@gmail.com>
Tue, 15 Mar 2011 09:18:02 +0000 (09:18 +0000)
committerSage Weil <sage@newdream.net>
Mon, 21 Mar 2011 19:24:25 +0000 (12:24 -0700)
In sync_write_wait(), we assume that the newest request is at the
tail of unsafe write list. We should maintain the semantics here.

Signed-off-by: Henry C Chang <henry_c_chang@tcloudcomputing.com>
Signed-off-by: Sage Weil <sage@newdream.net>
fs/ceph/file.c

index db5d863097448d5cb8bf0a589bc9364b22d48358..159b512d5a271379abf0bde217fd46feeb38c79b 100644 (file)
@@ -564,7 +564,8 @@ more:
                         * start_request so that a tid has been assigned.
                         */
                        spin_lock(&ci->i_unsafe_lock);
-                       list_add(&req->r_unsafe_item, &ci->i_unsafe_writes);
+                       list_add_tail(&req->r_unsafe_item,
+                                     &ci->i_unsafe_writes);
                        spin_unlock(&ci->i_unsafe_lock);
                        ceph_get_cap_refs(ci, CEPH_CAP_FILE_WR);
                }