path: root/utils.h
diff options
authorAndi Drebes <>2010-09-09 10:57:02 +0800
committerChris Mason <>2010-09-23 20:26:49 -0400
commit09559bfe7bcd43965bf8d3090f6f761fd785d093 (patch)
treeda275d9fd829ab883a6312fa43e3386351dbcb3a /utils.h
parent075587c96c2f39e227847d13ca0ef305b13cd7d3 (diff)
multidevice support for check_mounted
Check_mount() should also work with multi device filesystems. This patch adds checks that allow to detect if a file is a device file used by a mounted single or multi device btrfs or if it is a regular file used by a loopback device that is part of a mounted single or multi device btrfs. The single device checks also work for non-btrfs filesystems. This might be helpful to prevent users from running btrfs programs (e.g. mkfs.btrfs) accidentally on a filesystem used somewhere else. Signed-off-by: Andi Drebes <>
Diffstat (limited to 'utils.h')
1 files changed, 1 insertions, 1 deletions
diff --git a/utils.h b/utils.h
index 7ff542ba..9dce5b05 100644
--- a/utils.h
+++ b/utils.h
@@ -36,7 +36,7 @@ int btrfs_scan_for_fsid(struct btrfs_fs_devices *fs_devices, u64 total_devs,
int run_ioctls);
void btrfs_register_one_device(char *fname);
int btrfs_scan_one_dir(char *dirname, int run_ioctl);
-int check_mounted(char *devicename);
+int check_mounted(const char *devicename);
int btrfs_device_already_in_root(struct btrfs_root *root, int fd,
int super_offset);
char *pretty_sizes(u64 size);