Hi all, This is pending fixes for things that are going to get merged in 6.7. This time around it's merely a functional test for a locking relaxation in the xfs FICLONE implementation. v2: implement review suggestions If you're going to start using this code, I strongly recommend pulling from my git trees, which are linked below. This has been running on the djcloud for months with no problems. Enjoy! Comments and questions are, as always, welcome. --D kernel git tree: https://git.kernel.org/cgit/linux/kernel/git/djwong/xfs-linux.git/log/?h=xfs-merge-6.7 fstests git tree: https://git.kernel.org/cgit/linux/kernel/git/djwong/xfstests-dev.git/log/?h=xfs-merge-6.7 --- configure.ac | 1 include/builddefs.in | 1 m4/package_libcdev.m4 | 13 ++ src/Makefile | 4 + src/t_reflink_read_race.c | 339 +++++++++++++++++++++++++++++++++++++++++++++ tests/generic/1953 | 75 ++++++++++ tests/generic/1953.out | 6 + 7 files changed, 439 insertions(+) create mode 100644 src/t_reflink_read_race.c create mode 100755 tests/generic/1953 create mode 100644 tests/generic/1953.out