From 21ae5d7f95aa1a64f35b03c91f8714ced3ab61a9 Mon Sep 17 00:00:00 2001 From: Lars Ellenberg Date: Mon, 5 May 2014 23:42:24 +0200 Subject: [PATCH] drbd: track timing details of peer_requests To be able to present timing details in debugfs, we need to track preparation/submit times of peer requests. Track peer request flags early, before they are put on the epoch_entry lists. Waiting for activity log transactions may be a major latency factor. We want to be able to present the peer_request state accurately in debugfs, and what it is waiting for. Consistently mark/unmark peer requests with EE_CALL_AL_COMPLETE_IO. Set it only *after* calling drbd_al_begin_io(), clear it as soon as we call drbd_al_complete_io(). Signed-off-by: Philipp Reisner Signed-off-by: Lars Ellenberg --- Reading git-format-patch failed