From: Omar Sandoval <osan...@fb.com> So it turns out that the free space tree bitmap handling has always been broken on big-endian systems. Totally my bad.
Patch 1 fixes this. Technically, it's a disk format change for big-endian systems, but it never could have worked before, so I won't go through the trouble of any incompat bits. If you've somehow been using space_cache=v2 on a big-endian system (I doubt anyone is), you're going to want to mount with nospace_cache to clear it and wait for this to go in. Patch 2 fixes a similar error in the sanity tests (it's the same as the v2 I posted here [1]) and patch 3 expands the sanity tests to catch the oversight that patch 1 fixes. Applies to v4.7-rc7. No regressions in xfstests, and the sanity tests pass on x86_64 and MIPS. Thanks! 1: http://thread.gmane.org/gmane.comp.file-systems.btrfs/58329 Omar Sandoval (3): Btrfs: fix free space tree bitmaps on big-endian systems Btrfs: fix extent buffer bitmap tests on big-endian systems Btrfs: expand free space tree sanity tests to catch endianness bug fs/btrfs/extent_io.c | 64 +++++++++---- fs/btrfs/extent_io.h | 22 +++++ fs/btrfs/free-space-tree.c | 17 ++-- fs/btrfs/tests/extent-io-tests.c | 87 +++++++++-------- fs/btrfs/tests/free-space-tree-tests.c | 164 +++++++++++++++++++-------------- 5 files changed, 223 insertions(+), 131 deletions(-) -- 2.9.0 -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
