From: Sage Weil <sage@newdream.net>
Date: Thu, 21 Aug 2008 16:40:16 +0000 (-0700)
Subject: todos
X-Git-Tag: v0.4~191
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=9258ee9f9c2734c536a576fa6db1280c3297911b;p=ceph.git

todos
---

diff --git a/src/TODO b/src/TODO
index 373ed6a47a60..9c2778739895 100644
--- a/src/TODO
+++ b/src/TODO
@@ -18,6 +18,13 @@ big items
 
 
 snaps on kclient
+- snap-ordered writeout
+  - switch i_wrbuffer_ref to int, protected by i_lock
+  - split out i_wrbuffer_ref_head
+    - on queue_cap_snap, _head count to new snap and reset
+  - in writepages, take i_lock and 
+    - lock for oldest cap_snap with flushing > 0, 
+    - and make sure our page is for that snapc.  once we have a page, the snapc has to match.
 /- we need a rw snap mutex, so that pending io blocks while we update snap contexts
   - we can push down to a per-realm rw mutex later
 /- need to do ORDERSNAP flag