From: Sage Weil Date: Mon, 30 Jul 2012 23:19:28 +0000 (-0700) Subject: libceph: resubmit linger ops when pg mapping changes X-Git-Tag: v3.6-rc1~36^2~53 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6194ea895e447fdf4adfd23f67873a32bf4f15ae;p=pandora-kernel.git libceph: resubmit linger ops when pg mapping changes The linger op registration (i.e., watch) modifies the object state. As such, the OSD will reply with success if it has already applied without doing the associated side-effects (setting up the watch session state). If we lose the ACK and resubmit, we will see success but the watch will not be correctly registered and we won't get notifies. To fix this, always resubmit the linger op with a new tid. We accomplish this by re-registering as a linger (i.e., 'registered') if we are not yet registered. Then the second loop will treat this just like a normal case of re-registering. This mirrors a similar fix on the userland ceph.git, commit 5dd68b95, and ceph bug #2796. Signed-off-by: Sage Weil Reviewed-by: Alex Elder Reviewed-by: Yehuda Sadeh --- Reading git-diff-tree failed