Changes since v1[1]: 1. Rebased to mm-unstable, solved many conflicts [1] https://lore.kernel.org/linux-xfs/20220508143620.1775214-1-ruansy.fnst@xxxxxxxxxxx/ This is an *updated* combination of two patchsets: 1.fsdax-rmap: https://lore.kernel.org/linux-xfs/20220419045045.1664996-1-ruansy.fnst@xxxxxxxxxxx/ 2.fsdax-reflink: https://lore.kernel.org/linux-xfs/20210928062311.4012070-1-ruansy.fnst@xxxxxxxxxxx/ == Shiyang Ruan (14): dax: Introduce holder for dax_device mm: factor helpers for memory_failure_dev_pagemap pagemap,pmem: Introduce ->memory_failure() fsdax: Introduce dax_lock_mapping_entry() mm: Introduce mf_dax_kill_procs() for fsdax case xfs: Implement ->notify_failure() for XFS fsdax: set a CoW flag when associate reflink mappings fsdax: Output address in dax_iomap_pfn() and rename it fsdax: Introduce dax_iomap_cow_copy() fsdax: Replace mmap entry in case of CoW fsdax: Add dax_iomap_cow_copy() for dax zero fsdax: Dedup file range to use a compare function xfs: support CoW in fsdax mode xfs: Add dax dedupe support drivers/dax/super.c | 67 +++++- drivers/md/dm.c | 2 +- drivers/nvdimm/pmem.c | 17 ++ fs/dax.c | 399 ++++++++++++++++++++++++++++++------ fs/erofs/super.c | 10 +- fs/ext2/super.c | 7 +- fs/ext4/super.c | 9 +- fs/remap_range.c | 31 ++- fs/xfs/Makefile | 5 + fs/xfs/xfs_buf.c | 10 +- fs/xfs/xfs_file.c | 35 +++- fs/xfs/xfs_fsops.c | 3 + fs/xfs/xfs_inode.c | 69 ++++++- fs/xfs/xfs_inode.h | 1 + fs/xfs/xfs_iomap.c | 30 ++- fs/xfs/xfs_iomap.h | 1 + fs/xfs/xfs_mount.h | 1 + fs/xfs/xfs_notify_failure.c | 220 ++++++++++++++++++++ fs/xfs/xfs_reflink.c | 12 +- fs/xfs/xfs_super.h | 1 + include/linux/dax.h | 56 ++++- include/linux/fs.h | 12 +- include/linux/memremap.h | 12 ++ include/linux/mm.h | 2 + include/linux/page-flags.h | 6 + mm/memory-failure.c | 265 +++++++++++++++++------- 26 files changed, 1098 insertions(+), 185 deletions(-) create mode 100644 fs/xfs/xfs_notify_failure.c -- 2.36.1
