This is the fourth revision of my MAP_SYNC + dm-log-writes support for xfsprogs. The previous revision can be found here: https://lists.01.org/pipermail/linux-nvdimm/2017-December/013473.html Changes since v3: - Fixed indentation of variable declarations (Darrick). - Added a comment for the case where MAP_SYNC and MAP_SHARED_VALIDATE aren't defined in system headers and we fail an msync command (Darrick). - Dropped patch 1 of the previous series which fixed compiler warnings. A fix for this issue was already submitted by Dave. --- As suggested by Dave Chinner: As I say to all these sorts of one-off test prgrams: please add the new MAP_SYNC flag to xfs_io rather than writing a one-off test program to set it and write some data. And if we're going to be adding special custom tests just because we need to insert dm-log marks, add that functionality to xfs_io, too. That way we can create complex custom dm logwrite tests without needing one-off test programs for them all... This series enhances xfs_io by adding support for the MAP_SYNC mmap() flag and for dm-log-writes marks. This allows the resulting xfstest for MAP_SYNC to be much simpler and have no custom C programs. Ross Zwisler (2): xfs_io: add MAP_SYNC support to mmap() xfs_io: add a new 'log_writes' command configure.ac | 2 + debian/control | 2 +- include/builddefs.in | 3 ++ include/linux.h | 8 ++++ io/Makefile | 10 +++++ io/init.c | 1 + io/io.h | 7 ++++ io/log_writes.c | 106 ++++++++++++++++++++++++++++++++++++++++++++++++ io/mmap.c | 29 ++++++++++--- m4/Makefile | 1 + m4/package_devmapper.m4 | 11 +++++ m4/package_libcdev.m4 | 16 ++++++++ man/man8/xfs_io.8 | 29 ++++++++++++- 13 files changed, 217 insertions(+), 8 deletions(-) create mode 100644 io/log_writes.c create mode 100644 m4/package_devmapper.m4 -- 2.14.3 -- 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
