From 659d37c68d0676dcb9a9990bdbe61b98f11b0246 Mon Sep 17 00:00:00 2001 From: Andi Drebes Date: Thu, 9 Sep 2010 10:58:43 +0800 Subject: [PATCH] prevent btrfsck to run on mounted filesystems As recently discussed on the list, btrfsck should only be run on unmounted filesystems. This patch adds a short check for the mount status at the beginning of btrfsck. If the FS is mounted, the program aborts showing an error message. Signed-off-by: Andi Drebes --- btrfsck.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/btrfsck.c b/btrfsck.c index 73f1836..6f2a0d0 100644 --- a/btrfsck.c +++ b/btrfsck.c @@ -28,6 +28,7 @@ #include "transaction.h" #include "list.h" #include "version.h" +#include "utils.h" static u64 bytes_used = 0; static u64 total_csum_bytes = 0; @@ -2821,6 +2822,15 @@ int main(int ac, char **av) radix_tree_init(); cache_tree_init(&root_cache); + + if((ret = check_mounted(av[1])) < 0) { + fprintf(stderr, "Could not check mount status: %s\n", strerror(ret)); + return ret; + } else if(ret) { + fprintf(stderr, "%s is currently mounted. Aborting.\n", av[1]); + return -EBUSY; + } + root = open_ctree(av[1], 0, 0); if (root == NULL) -- 2.7.4