From 2ab1ba68aeaecd41c4b34f0eaf1d70a37367fb1a Mon Sep 17 00:00:00 2001 From: Chris Mason Date: Thu, 4 Aug 2011 14:28:36 -0400 Subject: [PATCH] Btrfs: force unplugs when switching from high to regular priority bios Btrfs does bio submissions from a worker thread, and each device has a list of high priority bios and regular priority bios. Synchronous writes go to the high priority thread while async writes go to regular list. This commit brings back an explicit unplug any time we switch from high to regular priority, which makes it easier for the block layer to give us low latencies. Signed-off-by: Chris Mason --- Reading git-format-patch failed