xfsprogs 4.17.0 mkfs with reflink=1 kernel 4.17.6 $ fallocate -l 1g tmp2 $ cp --reflink tmp2 tmp3 $ filefrag -v * Filesystem type is: 58465342 File size of tmp2 is 1073741824 (262144 blocks of 4096 bytes) ext: logical_offset: physical_offset: length: expected: flags: 0: 0.. 130136: 24.. 130160: 130137: unwritten 1: 130137.. 260280: 131082.. 261225: 130144: 130161: unwritten 2: 260281.. 262143: 264714.. 266576: 1863: 261226: last,unwritten,eof tmp2: 3 extents found File size of tmp3 is 1073741824 (262144 blocks of 4096 bytes) tmp3: 0 extents found [chris@f28s xfs]$ Is this expected? When I do it on Btrfs, I see identical information for the two files after reflink copy, with flags "unwritten,shared". Regular files behave as expected, I'm only seeing this on reflink copies of fallocated files. -- Chris Murphy -- To unsubscribe from this list: send the line "unsubscribe linux-xfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
