From 6b5fe46dfa52441f49c7432b1c1b1cb767834708 Mon Sep 17 00:00:00 2001
From: David Sterba <dsterba@suse.cz>
Date: Fri, 28 Mar 2014 17:38:48 +0100
Subject: [PATCH] btrfs: do commit in sync_fs if there are pending changes

If a pending change is requested, it's not processed unless there is a
transaction commit about to happen, not even after sync or SYNC_FS
ioctl. For example a remount that toggles the inode_cache option will
not take effect after sync on a quiescent filesystem.

Signed-off-by: David Sterba <dsterba@suse.cz>
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