[Libguestfs] [nbdkit PATCH 0/2] Avoid oddities with files unaligned to granularity

When using a filter that rounds up to alignment boundaries, the tail bytes of the plugin are difficult to access correctly. Rather than duplicating lots of code already in the truncate filter, it's easier to just make the other filters default to rounding down and add doc links on how to round up instead. Eric Blake (2): blocksize: Lift restriction against 0-size file cache, cow: Round size down filters/blocksize/nbdkit-blocksize-filter.pod | 15 +++++++++--- filters/cache/nbdkit-cache-filter.pod | 9 +++++++- filters/cow/nbdkit-cow-filter.pod | 8 +++++++ filters/truncate/nbdkit-truncate-filter.pod | 9 ++++++++ filters/blocksize/blocksize.c | 23 ++++--------------- filters/cache/cache.c | 8 +++++-- filters/cow/cow.c | 6 ++++- 7 files changed, 53 insertions(+), 25 deletions(-) -- 2.20.1