EXTENT_FLAG_COMPRESS_ZLIB
em->flags |= EXTENT_FLAG_COMPRESS_ZLIB;
if (em->flags & EXTENT_FLAG_COMPRESS_ZLIB)
return (em->flags & (EXTENT_FLAG_COMPRESS_ZLIB |
em->flags |= EXTENT_FLAG_COMPRESS_ZLIB;
em->flags |= (EXTENT_FLAG_PINNED | EXTENT_FLAG_COMPRESS_ZLIB);
em->flags |= EXTENT_FLAG_COMPRESS_ZLIB;
em->flags |= EXTENT_FLAG_COMPRESS_ZLIB;
compressed_only |= EXTENT_FLAG_COMPRESS_ZLIB;
{ EXTENT_FLAG_COMPRESS_ZLIB, "COMPRESS_ZLIB" },\