This patch set support ext4 hardware atomic write. Alan Adamson (1): nvme: Atomic write support John Garry (12): block: Pass blk_queue_get_max_sectors() a request pointer block: Generalize chunk_sectors support as boundary support block: Add core atomic write support block: Call blkdev_dio_unaligned() from blkdev_direct_IO() block: Add fops atomic write support block/fs: Pass an iocb to generic_atomic_write_valid() fs/block: Check for IOCB_DIRECT in generic_atomic_write_valid() block: Add bdev atomic write limits helpers fs: Export generic_atomic_write_valid() fs: iomap: Atomic write support block: Fix blk_validate_atomic_write_limits() build for arm32 nvme: stop using AWUPF Long Li (3): block: fix kabi broken in struct queue_limits fs: fix kabi broken in struct kstat block: fix kabi broken in enum req_flag_bits Prasad Singamsetty (2): fs: Initial atomic write support fs: Add initial atomic write support info to statx Ritesh Harjani (IBM) (14): ext4: Add statx support for atomic writes ext4: Check for atomic writes support in write iter ext4: Support setting FMODE_CAN_ATOMIC_WRITE ext4: Do not fallback to buffered-io for DIO atomic write ext4: Document an edge case for overwrites ext4: Check if inode uses extents in ext4_inode_can_atomic_write() ext4: Make ext4_meta_trans_blocks() non-static for later use ext4: Add support for EXT4_GET_BLOCKS_QUERY_LEAF_BLOCKS ext4: Add multi-fsblock atomic write support with bigalloc ext4: Enable support for ext4 multi-fsblock atomic write using bigalloc ext4: Add atomic block write documentation iomap: Lift blocksize restriction on atomic writes ext4: Unwritten to written conversion requires EXT4_EX_NOCACHE ext4: Simplify last in leaf check in ext4_map_query_blocks Documentation/ABI/stable/sysfs-block | 53 +++ .../filesystems/ext4/atomic_writes.rst | 225 ++++++++++++ Documentation/filesystems/ext4/overview.rst | 1 + block/blk-core.c | 19 + block/blk-merge.c | 67 +++- block/blk-mq.c | 2 +- block/blk-settings.c | 86 +++++ block/blk-sysfs.c | 33 ++ block/blk.h | 9 +- block/fops.c | 51 ++- drivers/md/dm.c | 2 +- drivers/nvme/host/core.c | 64 +++- fs/aio.c | 8 +- fs/btrfs/ioctl.c | 2 +- fs/ext4/ext4.h | 35 +- fs/ext4/extents.c | 99 +++++ fs/ext4/file.c | 31 +- fs/ext4/inode.c | 345 ++++++++++++++++-- fs/ext4/super.c | 34 ++ fs/iomap/direct-io.c | 38 +- fs/iomap/trace.h | 3 +- fs/read_write.c | 22 +- fs/stat.c | 34 ++ include/linux/blk_types.h | 8 +- include/linux/blkdev.h | 84 ++++- include/linux/fs.h | 18 +- include/linux/iomap.h | 1 + include/linux/stat.h | 5 +- include/uapi/linux/fs.h | 5 +- include/uapi/linux/stat.h | 11 +- io_uring/rw.c | 8 +- 31 files changed, 1313 insertions(+), 90 deletions(-) create mode 100644 Documentation/filesystems/ext4/atomic_writes.rst -- 2.52.0