btrfs: fix get_root key comparison failures due to endianness

* grub-core/fs/btrfs.c (get_root): Convert
GRUB_BTRFS_ROOT_VOL_OBJECTID to little-endian.

Origin: upstream, http://git.savannah.gnu.org/gitweb/?p=grub.git;a=commitdiff;h=4afd0107efa6a2d9cbe6fc71c529264dc2b9fb8a
Forwarded: not-needed
Last-Update: 2014-03-31

Patch-Name: btrfs-endian.patch

diff --git a/grub-core/fs/btrfs.c b/grub-core/fs/btrfs.c
index 89666b6fd593b417ca1e6d0c76c6ac7c4b0dbd11..f7b6c1520371cb16c22ff9aae60f462d26223758 100644 (file)
--- a/grub-core/fs/btrfs.c
+++ b/grub-core/fs/btrfs.c
@@ -1201,7 +1201,7 @@ get_root (struct grub_btrfs_data *data, struct grub_btrfs_key *key,
   struct grub_btrfs_key key_out, key_in;
   struct grub_btrfs_root_item ri;
 
-  key_in.object_id = GRUB_BTRFS_ROOT_VOL_OBJECTID;
+  key_in.object_id = grub_cpu_to_le64_compile_time (GRUB_BTRFS_ROOT_VOL_OBJECTID);
   key_in.offset = 0;
   key_in.type = GRUB_BTRFS_ITEM_TYPE_ROOT_ITEM;
   err = lower_bound (data, &key_in, &key_out,