Re: [PATCH] Fix missing byte order conversion in get_btrfs_fs_prefix function

[Andrei Borzenkov]

В Mon, 22 Jun 2015 16:45:27 +0800
Michael Chang <address@hidden> пишет:

> Since btrfs on-disk format uses little-endian, the searched item types
> (ROOT_REF, INODE_REF) need converting the byte order in order to
> function properly on big-endian systems.

Applied. Thanks!

> ---
>  grub-core/osdep/linux/getroot.c |    6 +++---
>  1 files changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/grub-core/osdep/linux/getroot.c b/grub-core/osdep/linux/getroot.c
> index a2e360f..3978c71 100644
> --- a/grub-core/osdep/linux/getroot.c
> +++ b/grub-core/osdep/linux/getroot.c
> @@ -316,9 +316,9 @@ get_btrfs_fs_prefix (const char *mount_path)
>  
>         tree_id = sargs.buf[2];
>         br = (struct grub_btrfs_root_backref *) (sargs.buf + 4);
> -       inode_id = br->inode_id;
> +       inode_id = grub_le_to_cpu64 (br->inode_id);
>         name = br->name;
> -       namelen = br->n;
> +       namelen = grub_le_to_cpu16 (br->n);
>       }
>        else
>       {
> @@ -345,7 +345,7 @@ get_btrfs_fs_prefix (const char *mount_path)
>  
>         ir = (struct grub_btrfs_inode_ref *) (sargs.buf + 4);
>         name = ir->name;
> -       namelen = ir->n;
> +       namelen = grub_le_to_cpu16 (ir->n);
>       }
>        old = ret;
>        ret = xmalloc (namelen + (old ? strlen (old) : 0) + 2);