From 7d4dc89f96644c6f1b7efb5a3759bbee58f5b27e Mon Sep 17 00:00:00 2001
From: Ilya Dryomov <idryomov@gmail.com>
Date: Tue, 12 Feb 2013 18:42:30 +0200
Subject: [PATCH] Btrfs-progs: make 0 a valid usage filter argument

This is a progs counterpart to a "Btrfs: allow for selecting only
completely empty chunks".  usage=0 now means "select only only
completely empty chunks and nothing else".

Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
---
 cmds-balance.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/cmds-balance.c b/cmds-balance.c
index dde7c683..b671e1d7 100644
--- a/cmds-balance.c
+++ b/cmds-balance.c
@@ -164,7 +164,7 @@ static int parse_filters(char *filters, struct btrfs_balance_args *args)
 				return 1;
 			}
 			if (parse_u64(value, &args->usage) ||
-			    args->usage < 1 || args->usage > 100) {
+			    args->usage > 100) {
 				fprintf(stderr, "Invalid usage argument: %s\n",
 				       value);
 				return 1;