Re: [PATCH V5 0/9] Enable ext4 support for per-file/directory DAX operations

[Theodore Y. Ts'o]

On Thu, May 28, 2020 at 07:59:54AM -0700, ira.weiny@xxxxxxxxx wrote:
> From: Ira Weiny <ira.weiny@xxxxxxxxx>
> 
> Changes from V4:
> 	Fix up DAX mutual exclusion with other flags.
> 	Add clean up patch (remove jflags)
> 
> Changes from V3:
> 	Change EXT4_DAX_FL to bit24
> 	Cache device DAX support in the super block and use that is
> 		ext4_should_use_dax()
> 
> Changes from V2:
> 	Rework DAX exclusivity with verity and encryption based on feedback
> 	from Eric
> 
> 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/
> 
> To: linux-ext4@xxxxxxxxxxxxxxx
> To: Andreas Dilger <adilger.kernel@xxxxxxxxx>
> To: "Theodore Y. Ts'o" <tytso@xxxxxxx>
> To: Jan Kara <jack@xxxxxxx>
> To: Eric Biggers <ebiggers@xxxxxxxxxx>

Thanks, applied to the ext4-dax branch.

						- Ted