[PATCH 0/3] fiemap: introduce EXTENT_DATA_COMPRESSED flag

[David Sterba <dsterba@suse.cz>]

The original FIEMAP patch did not define this bit, btrfs will make use of
it.  The defined constant maintains the same value as originally proposed.

Currently, the 'filefrag' utility has no way to recognize and denote a
compressed extent. As implemented in btrfs right now, the compression step
splits a big extent into smaller chunks and this is reported as a heavily
fragmented file. Adding the flag to filefrag will at least give some
explanation why, this has been confusing users for some time already.

David Sterba (3):
  fiemap: fix comment at EXTENT_DATA_ENCRYPTED
  fiemap: add EXTENT_DATA_COMPRESSED flag
  btrfs: set FIEMAP_EXTENT_DATA_COMPRESSED for compressed extents

 fs/btrfs/extent_io.c        |    4 +++-
 include/uapi/linux/fiemap.h |    4 +++-
 2 files changed, 6 insertions(+), 2 deletions(-)

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1.7.9