The page fault part of fsdax code is little complex. In order to add CoW feature and make it easy to understand, I was suggested to factor some helper functions to simplify the current dax code. This is separated from the previous patchset called "V3 fsdax,xfs: Add reflink&dedupe support for fsdax", and the previous comments are here[1]. [1]: https://patchwork.kernel.org/project/linux-nvdimm/patch/20210319015237.993880-3-ruansy.fnst@xxxxxxxxxxx/ Changes from V1: - fix Ritesh's email address - simplify return logic in dax_fault_cow_page() (Rebased on v5.12-rc5) == Shiyang Ruan (3): fsdax: Factor helpers to simplify dax fault code fsdax: Factor helper: dax_fault_actor() fsdax: Output address in dax_iomap_pfn() and rename it fs/dax.c | 439 +++++++++++++++++++++++++++++-------------------------- 1 file changed, 232 insertions(+), 207 deletions(-) -- 2.31.0
