When open in btrfs_open_devices failed, only the following message is
displayed. Therefore the user doesn't understand the reason why open
failed.
# btrfs check /dev/sdb8
Couldn't open file system
This patch adds the error message when open fails.
Signed-off-by: Tsutomu Itoh <t-itoh@xxxxxxxxxxxxxx>
---
volumes.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/volumes.c b/volumes.c
index ccfa732..80d61cf 100644
--- a/volumes.c
+++ b/volumes.c
@@ -227,6 +227,8 @@ int btrfs_open_devices(struct btrfs_fs_devices *fs_devices, int flags)
fd = open(device->name, flags);
if (fd < 0) {
ret = -errno;
+ error("cannot open '%s': %s", device->name,
+ strerror(errno));
goto fail;
}
--
2.8.1
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