From: Felix Fietkau <nbd@openwrt.org>
Date: Sun, 10 Jan 2016 17:35:36 +0000 (+0100)
Subject: fstools: check existing filesystem state before writing the new one
X-Git-Url: http://git.openwrt.org/?p=project%2Ffstools.git;a=commitdiff_plain;h=96415afecef35766332067f4205ef3b2c7561d21;hp=d90165cdbdac40e6e2699d831e13473479d8cb79

fstools: check existing filesystem state before writing the new one

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
---

diff --git a/libfstools/overlay.c b/libfstools/overlay.c
index 7f69606..cdac23e 100644
--- a/libfstools/overlay.c
+++ b/libfstools/overlay.c
@@ -311,6 +311,9 @@ int fs_state_set(const char *dir, enum fs_state state)
 	char valstr[16];
 	char *path;
 
+	if (fs_state_get(dir) == state)
+		return 0;
+
 	path = alloca(strlen(dir) + 1 + sizeof("/.fs_state"));
 	sprintf(path, "%s/.fs_state", dir);
 	unlink(path);