[Libguestfs] [PATCH 1/2] mkfs: Don't allow blocksize to be set on btrfs (RHBZ#807905).
From: "Richard W.M. Jones" <rjones(a)redhat.com>
---
daemon/mkfs.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/daemon/mkfs.c b/daemon/mkfs.c
index 5475582..492b690 100644
--- a/daemon/mkfs.c
+++ b/daemon/mkfs.c
@@ -133,6 +133,11 @@ do_mkfs_opts (const char *fstype, const char *device, int blocksize,
ADD_ARG (argv, i, "-c");
ADD_ARG (argv, i, blocksize_str);
}
+ else if (STREQ (fstype, "btrfs")) {
+ /* For btrfs, blocksize cannot be specified (RHBZ#807905). */
+ reply_with_error ("blocksize cannot be set on btrfs filesystems");
+ return -1;
+ }
else {
/* For all other filesystem types, try the -b option. */
snprintf (blocksize_str, sizeof blocksize_str, "%d", blocksize);
--
1.7.9.3