From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga03.intel.com ([134.134.136.65]:55943 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1760992AbdKQUZh (ORCPT ); Fri, 17 Nov 2017 15:25:37 -0500 From: Ross Zwisler Subject: [xfsprogs PATCH 0/2] Add necessary items for MAP_SYNC testing Date: Fri, 17 Nov 2017 13:25:22 -0700 Message-Id: <20171117202524.24696-1-ross.zwisler@linux.intel.com> Sender: linux-xfs-owner@vger.kernel.org List-ID: List-Id: xfs To: linux-xfs Cc: Ross Zwisler , linux-nvdimm , fstests , Jan Kara , Dave Chinner , Dan Williams 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. You can find an xfsprogs branch with this series here: https://git.kernel.org/pub/scm/linux/kernel/git/zwisler/xfsprogs-dev.git/log/?h=map_sync Both MAP_SYNC and the DAX enhancements for dm-log-writes will be found in the upcoming v4.15-rc1. For ease of testing I've posted a kernel that is v4.14 plus just those two patch series here: https://git.kernel.org/pub/scm/linux/kernel/git/zwisler/linux.git/log/?h=map_sync_dm_log_writes Ross Zwisler (2): xfs_io: add MAP_SYNC support to mmap() xfs_io: add a new 'log_writes' command configure.ac | 1 + include/builddefs.in | 1 + include/linux.h | 5 ++++ io/Makefile | 5 ++-- io/init.c | 1 + io/io.h | 2 ++ io/log_writes.c | 78 +++++++++++++++++++++++++++++++++++++++++++++++++++ io/mmap.c | 19 +++++++++---- m4/package_libcdev.m4 | 16 +++++++++++ man/man8/xfs_io.8 | 25 ++++++++++++++++- 10 files changed, 145 insertions(+), 8 deletions(-) create mode 100644 io/log_writes.c -- 2.9.5