There is a bug that uboot can't load LZO compressed data extent while
kernel can handle it without any problem.
It turns out to be a page boundary case. The 3nd patch is the proper
fix, cross-ported from btrfs-progs.
The first patch is just to make my eyes less hurt.
The second patch is to make sure the driver will reject sector size not
matching PAGE_SIZE.
This keeps the behavior the same as kernel, even in theory we could do
better in U-boot. This is just a temporary fix, before better btrfs
driver implemented.
I guess it's time to backport proper code from btrfs-progs, other than
using tons of immediate codes.
Changelog:
v2:
- Fix code style problems
- Add a new patch to reject non-page-sized sector size
Since kernel does the same thing, and non-4K page size u-boot boards
are really rare, it shouldn't be a big problem.
Qu Wenruo (3):
fs: btrfs: Use LZO_LEN to replace immediate number
fs: btrfs: Reject fs with sector size other than PAGE_SIZE
fs: btrfs: Fix LZO false decompression error caused by pending zero
fs/btrfs/compression.c | 42 +++++++++++++++++++++++++++++++-----------
fs/btrfs/super.c | 8 ++++++++
2 files changed, 39 insertions(+), 11 deletions(-)