Hi, This is V3 of patches. I have dropped RFC tag from the series as it looks like there is agreement on the interface. These patches are also available at. https://github.com/rhvgoyal/linux/commits/dax-zero-range-v3 I posted previous versions here. v2: https://lore.kernel.org/linux-fsdevel/20200203200029.4592-1-vgoyal@xxxxxxxxxx/ v1: https://lore.kernel.org/linux-fsdevel/20200123165249.GA7664@xxxxxxxxxx/ Changes since V2: Primarily took care of comments from Christoph. - Changed zero_copy_range() parameters to pass dax device offset as u64. - Fixed comment which says current interface only supports zeroing with-in page. - Refactored pmem_do_bvec() and reused write side of code in zero_page_range(). - Removed generic_dax_zero_page_range() - Fixed s390 dcssblk.c compilation issue. Please review. Thanks Vivek Vivek Goyal (7): pmem: Add functions for reading/writing page to/from pmem pmem: Enable pmem_do_write() to deal with arbitrary ranges dax, pmem: Add a dax operation zero_page_range s390,dcssblk,dax: Add dax zero_page_range operation to dcssblk driver dm,dax: Add dax zero_page_range operation dax,iomap: Start using dax native zero_page_range() dax,iomap: Add helper dax_iomap_zero() to zero a range drivers/dax/super.c | 19 ++++++ drivers/md/dm-linear.c | 21 +++++++ drivers/md/dm-log-writes.c | 19 ++++++ drivers/md/dm-stripe.c | 26 ++++++++ drivers/md/dm.c | 31 ++++++++++ drivers/nvdimm/pmem.c | 112 ++++++++++++++++++++++++---------- drivers/s390/block/dcssblk.c | 17 ++++++ fs/dax.c | 53 ++++------------ fs/iomap/buffered-io.c | 9 +-- include/linux/dax.h | 20 ++---- include/linux/device-mapper.h | 3 + 11 files changed, 235 insertions(+), 95 deletions(-) -- 2.20.1
