From: Ira Weiny <ira.weiny@xxxxxxxxx> Enable the same per file DAX support in ext4 as was done for xfs. This series builds and depends on the V11 series for xfs.[1] This passes the same xfstests test as XFS. The only issue is that this modifies the old mount option parsing code rather than waiting for the new parsing code to be finalized. This series starts with 3 fixes which include making Verity and Encrypt truly mutually exclusive from DAX. I think these first 3 patches should be picked up for 5.8 regardless of what is decided regarding the mount parsing. [1] https://lore.kernel.org/lkml/20200428002142.404144-1-ira.weiny@xxxxxxxxx/ Changes from V0: Collect reviews Fix up setting don't cache in ioctl code Add FS_DAX_FL flag for consistency To: linux-ext4@xxxxxxxxxxxxxxx To: "Theodore Y. Ts'o" <tytso@xxxxxxx> To: Jan Kara <jack@xxxxxxx> Cc: "Darrick J. Wong" <darrick.wong@xxxxxxxxxx> Cc: Dan Williams <dan.j.williams@xxxxxxxxx> Cc: Dave Chinner <david@xxxxxxxxxxxxx> Cc: Christoph Hellwig <hch@xxxxxx> Cc: linux-kernel@xxxxxxxxxxxxxxx Cc: linux-xfs@xxxxxxxxxxxxxxx Cc: linux-fsdevel@xxxxxxxxxxxxxxx Ira Weiny (9): fs/ext4: Narrow scope of DAX check in setflags fs/ext4: Disallow verity if inode is DAX fs/ext4: Disallow encryption if inode is DAX fs/ext4: Change EXT4_MOUNT_DAX to EXT4_MOUNT_DAX_ALWAYS fs/ext4: Update ext4_should_use_dax() fs/ext4: Only change S_DAX on inode load fs/ext4: Make DAX mount option a tri-state fs/ext4: Introduce DAX inode flag Documentation/dax: Update DAX enablement for ext4 Documentation/filesystems/dax.txt | 6 +- Documentation/filesystems/ext4/verity.rst | 7 +++ Documentation/filesystems/fscrypt.rst | 4 +- fs/ext4/ext4.h | 20 ++++--- fs/ext4/ialloc.c | 2 +- fs/ext4/inode.c | 27 +++++++-- fs/ext4/ioctl.c | 31 +++++++++-- fs/ext4/super.c | 67 +++++++++++++++-------- fs/ext4/verity.c | 5 +- include/uapi/linux/fs.h | 1 + 10 files changed, 125 insertions(+), 45 deletions(-) -- 2.25.1
