On Thu, Mar 01, 2018 at 10:47:43AM +0800, Qu Wenruo wrote: > Kernel doesn't support dropping range inside inline extent, and prevents > such thing happening by limiting max inline extent size to > min(max_inline, sectorsize - 1) in cow_file_range_inline(). > > However btrfs-progs only inherit the BTRFS_MAX_INLINE_DATA_SIZE() macro, > which doesn't have sectorsize check. > And since btrfs-progs defaults to 16K nodesize, above macro allows large > inline extent over 15K size. > > This leads to unexpected kernel behavior. > > The bug exists from the very beginning of btrfs-convert, dating back to > 2008 when btrfs-convert is first introduced. > > Qu Wenruo (4): > btrfs-progs: Limit inline extent below page size > btrfs-progs: check/original mode: Check inline extent size > btrfs-progs: check/lowmem mode: Check inline extent size > btrfs-progs: test/convert: Add test case for invalid large inline data > extent
Thanks, added to devel. Fixes will be added to 4.15.2. -- 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
