btrfs: describe the space reservation system in general
authorJosef Bacik <josef@toxicpanda.com>
Tue, 4 Feb 2020 18:18:56 +0000 (13:18 -0500)
committerDavid Sterba <dsterba@suse.com>
Mon, 23 Mar 2020 16:01:27 +0000 (17:01 +0100)
commit4b8b05288835501012d957bee597bffc72512646
treece505dbe65e3ebb180ec87b3f15968639073e37a
parent6f4ad559ea1cb5c5e78217405e4141c6a5981f86
btrfs: describe the space reservation system in general

Add another comment to cover how the space reservation system works
generally.  This covers the actual reservation flow, as well as how
flushing is handled.

Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: David Sterba <dsterba@suse.com>
fs/btrfs/space-info.c