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2020-05-29fs/ext4: Disallow verity if inode is DAXIra Weiny1-0/+3
Verity and DAX are incompatible. Changing the DAX mode due to a verity flag change is wrong without a corresponding address_space_operations update. Make the 2 options mutually exclusive by returning an error if DAX was set first. (Setting DAX is already disabled if Verity is set first.) Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Ira Weiny <ira.weiny@intel.com> Link: https://lore.kernel.org/r/20200528150003.828793-3-ira.weiny@intel.com Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2019-08-13ext4: update on-disk format documentation for fs-verityEric Biggers1-0/+41
Document the format of verity files on ext4, and the corresponding inode and superblock flags. Reviewed-by: Theodore Ts'o <tytso@mit.edu> Signed-off-by: Eric Biggers <ebiggers@google.com>