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Subject[PATCH v3 00/19][RFC] virtio-fs: Enable DAX support
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Hi,

This patch series enables DAX support for virtio-fs filesystem. Patches
are based on 5.3-rc5 kernel and need first patch series posted for
virtio-fs support with subject "virtio-fs: shared file system for virtual
machines".

https://www.redhat.com/archives/virtio-fs/2019-August/msg00281.html

Enabling DAX seems to improve performance for most of the operations
in general a great deal. I have reported performance numbers in first patch
series so I am not repeating these here.

Any comments or feedback is welcome.

Thanks
Vivek

Sebastien Boeuf (3):
virtio: Add get_shm_region method
virtio: Implement get_shm_region for PCI transport
virtio: Implement get_shm_region for MMIO transport

Stefan Hajnoczi (4):
dax: remove block device dependencies
fuse, dax: add fuse_conn->dax_dev field
virtio_fs, dax: Set up virtio_fs dax_device
fuse, dax: add DAX mmap support

Vivek Goyal (12):
dax: Pass dax_dev to dax_writeback_mapping_range()
fuse: Keep a list of free dax memory ranges
fuse: implement FUSE_INIT map_alignment field
fuse: Introduce setupmapping/removemapping commands
fuse, dax: Implement dax read/write operations
fuse: Define dax address space operations
fuse, dax: Take ->i_mmap_sem lock during dax page fault
fuse: Maintain a list of busy elements
dax: Create a range version of dax_layout_busy_page()
fuse: Add logic to free up a memory range
fuse: Release file in process context
fuse: Take inode lock for dax inode truncation

drivers/dax/super.c | 3 +-
drivers/virtio/virtio_mmio.c | 32 +
drivers/virtio/virtio_pci_modern.c | 108 +++
fs/dax.c | 89 +-
fs/ext2/inode.c | 2 +-
fs/ext4/inode.c | 2 +-
fs/fuse/cuse.c | 3 +-
fs/fuse/dir.c | 2 +
fs/fuse/file.c | 1206 +++++++++++++++++++++++++++-
fs/fuse/fuse_i.h | 99 ++-
fs/fuse/inode.c | 138 +++-
fs/fuse/virtio_fs.c | 134 +++-
fs/xfs/xfs_aops.c | 2 +-
include/linux/dax.h | 12 +-
include/linux/virtio_config.h | 17 +
include/uapi/linux/fuse.h | 47 +-
include/uapi/linux/virtio_fs.h | 3 +
include/uapi/linux/virtio_mmio.h | 11 +
include/uapi/linux/virtio_pci.h | 11 +-
19 files changed, 1868 insertions(+), 53 deletions(-)

--
2.20.1

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