[PATCH U-boot v2] fs: btrfs: fix the false alert of decompression failure
Tom Rini
trini at konsulko.com
Tue Apr 27 18:46:02 CEST 2021
On Sat, Apr 17, 2021 at 08:52:13PM +0800, Qu Wenruo wrote:
> There are some cases where decompressed sectors can have padding zeros.
>
> In kernel code, we have lines to address such situation:
>
> /*
> * btrfs_getblock is doing a zero on the tail of the page too,
> * but this will cover anything missing from the decompressed
> * data.
> */
> if (bytes < destlen)
> memset(kaddr+bytes, 0, destlen-bytes);
> kunmap_local(kaddr);
>
> But not in U-boot code, thus we have some reports of U-boot failed to
> read compressed files in btrfs.
>
> Fix it by doing the same thing of the kernel, for both inline and
> regular compressed extents.
>
> Reported-by: Matwey Kornilov <matwey.kornilov at gmail.com>
> Link: https://bugzilla.suse.com/show_bug.cgi?id=1183717
> Fixes: a26a6bedafcf ("fs: btrfs: Introduce btrfs_read_extent_inline() and btrfs_read_extent_reg()")
> Signed-off-by: Qu Wenruo <wqu at suse.com>
Applied to u-boot/master, thanks!
--
Tom
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 659 bytes
Desc: not available
URL: <https://lists.denx.de/pipermail/u-boot/attachments/20210427/fb1903d9/attachment.sig>
More information about the U-Boot
mailing list