On Thu, 22 Sep 2016 17:24:20 -0700, Omar Sandoval wrote:
> From: Omar Sandoval <osandov@xxxxxx>
>
> In convert_free_space_to_{bitmaps,extents}(), we buffer the free space
> bitmaps in memory and copy them directly to/from the extent buffers with
> {read,write}_extent_buffer(). The extent buffer bitmap helpers use byte
> granularity, which is equivalent to a little-endian bitmap. This means
> that on big-endian systems, the in-memory bitmaps will be written to
> disk byte-swapped. To fix this, use byte-granularity for the bitmaps in
> memory.
>
> Fixes: a5ed91828518 ("Btrfs: implement the free space B-tree")
> Cc: stable@xxxxxxxxxxxxxxx # 4.5+
> Signed-off-by: Omar Sandoval <osandov@xxxxxx>
Tested-by: Holger Hoffstätte <holger@xxxxxxxxxxxxxxxxxxxxxx>
(only for regressions on little-endian x86-64)
Thanks!
Holger
--
To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
