Eryu, Since v4.13, overlayfs supports mount option index=on/off per mount and kernel config option CONFIG_OVERLAY_FS_INDEX that sets the default system wide value when mount option is not specified. The behavior of overlayfs may differ for index=on/off, specifically for hardlinks. It is therefore important to be able to test overlayfs with both index=on/off. To that end exists the OVERLAY_MOUNT_OPTIONS config option, only when I tried to use it I found it was broken in more than one way. This series fixed the use of OVERLAY_MOUNT_OPTIONS and refactors some customized overlay mount helpers along the way. NOTE for users of kvm-xfstests, this test-appliance change is also required for invoking kvm-xfstests -m index=on/off https://github.com/tytso/xfstests-bld/pull/4 Amir Goldstein (4): overlay: remove stale implementation of _scratch_mount_options overlay: use default overlay mount options _overlay_mount_dirs() overlay: create helper _overlay_scratch_mount_dirs() overlay: fix _overlay_config_override of MOUNT_OPTIONS common/config | 4 ++++ common/rc | 36 ++++++++++++++++-------------------- tests/overlay/005 | 2 +- tests/overlay/010 | 3 +-- tests/overlay/014 | 8 +++----- tests/overlay/031 | 11 +++++------ tests/overlay/035 | 3 +-- tests/overlay/037 | 14 ++++++-------- tests/overlay/038 | 3 +-- 9 files changed, 38 insertions(+), 46 deletions(-) -- 2.7.4 -- To unsubscribe from this list: send the line "unsubscribe linux-unionfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
