From: Josh Durgin Date: Fri, 30 Aug 2013 00:36:03 +0000 (-0700) Subject: rbd: make rbd_obj_notify_ack() synchronous X-Git-Tag: v3.12-rc2~16^2~4 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=20e0af67ce88c657d0601977b9941a2256afbdaa;p=pandora-kernel.git rbd: make rbd_obj_notify_ack() synchronous The only user of rbd_obj_notify_ack() is rbd_watch_cb(). It used asynchronously with no tracking of when the notify ack completes, so it may still be in progress when the osd_client is shut down. This results in a BUG() since the osd client assumes no requests are in flight when it stops. Since all notifies are flushed before the osd_client is stopped, waiting for the notify ack to complete before returning from the watch callback ensures there are no notify acks in flight during shutdown. Rename rbd_obj_notify_ack() to rbd_obj_notify_ack_sync() to reflect its new synchronous nature. Signed-off-by: Josh Durgin Reviewed-by: Alex Elder --- Reading git-diff-tree failed