On Tue, Aug 23, 2016 at 04:04:10PM -0600, Ross Zwisler wrote: > DAX PMDs have been disabled since Jan Kara introduced DAX radix tree based > locking. This series allows DAX PMDs to participate in the DAX radix tree > based locking scheme so that they can be re-enabled. > > Changes since v1: > - PMD entry locking is now done based on the starting offset of the PMD > entry, rather than on the radix tree slot which was unreliable. (Jan) > - Fixed the one issue I could find with hole punch. As far as I can tell > hole punch now works correctly for both PMD and PTE DAX entries, 4k zero > pages and huge zero pages. > - Fixed the way that ext2 returns the size of holes in ext2_get_block(). > (Jan) > - Made the 'wait_table' global variable static in respnse to a sparse > warning. > - Fixed some more inconsitent usage between the names 'ret' and 'entry' > for radix tree entry variables. > > Ross Zwisler (9): > ext4: allow DAX writeback for hole punch > ext2: tell DAX the size of allocation holes > ext4: tell DAX the size of allocation holes > dax: remove buffer_size_valid() > dax: make 'wait_table' global variable static > dax: consistent variable naming for DAX entries > dax: coordinate locking for offsets in PMD range > dax: re-enable DAX PMD support > dax: remove "depends on BROKEN" from FS_DAX_PMD > > fs/Kconfig | 1 - > fs/dax.c | 297 +++++++++++++++++++++++++++++----------------------- > fs/ext2/inode.c | 3 + > fs/ext4/inode.c | 7 +- > include/linux/dax.h | 29 ++++- > mm/filemap.c | 6 +- > 6 files changed, 201 insertions(+), 142 deletions(-) > > -- > 2.9.0 Ping on this series? Any objections or comments? -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>