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fstools: check existing filesystem state before writing the new one
author
Felix Fietkau
<nbd@openwrt.org>
Sun, 10 Jan 2016 17:35:36 +0000
(18:35 +0100)
committer
Felix Fietkau
<nbd@openwrt.org>
Sun, 10 Jan 2016 17:35:36 +0000
(18:35 +0100)
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
libfstools/overlay.c
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diff --git
a/libfstools/overlay.c
b/libfstools/overlay.c
index 7f696061fa6792405af5366e33d120ac73422c5d..cdac23e0d04bb6c707d9ca873085936a9749c545 100644
(file)
--- 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);