Currenty EXT4_IOC_MOVE_EXT is very dangerous call because anyone who has write perm is able to call it and trigger kernel panic. Even more all kernel since v2.6.30-6558-g748de67 are affected, so current Debian and Redhat server solutions are dangerous. Tests are available here: http://www.spinics.net/lists/linux-fsdevel/msg58316.html Or here: https://github.com/dmonakhov/xfstests/tree/ce8e3adab629b2a9be8ba2e73db7dad49eb46614 288'th test This patchset attempt to close all known bugs, so it survived after all tests i know. TOC: ext4: move_extent code cleanup ext4: online defrag is not supported for journaled files ext4: basic bug shield for move_extent_per_page V2 ext4: reimplement uninit extent optimization for move_extent_per_page V2 -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
