tree 98447fd009cc03e5125ffc51b4caac07123e0f70
parent 2c27c9a57c93a0757b9b4b0e7dc1abeaf1db1ce2
author Sage Weil <sage@newdream.net> 1266432217 -0800
committer Sage Weil <sage@newdream.net> 1266618798 -0800

ceph: fix check for invalidate_mapping_pages success

We need to know whether there was any page left behind, and not the
return value (the total number of pages invalidated).  Look at the mapping
to see if we were successful or not.

Move it all into a helper to simplify the two callers.

Signed-off-by: Yehuda Sadeh <yehuda@hq.newdream.net>
Signed-off-by: Sage Weil <sage@newdream.net>