On Sun 08-05-16 01:59:37, Christoph Hellwig wrote: > Not really for the patch, but given that we have the right people > on CC: > > Do we really want to keep DAX support in ext2 in the long run? ext2 > is missing a lot of the useful features for a modern FS, shouldn't > we direct people to use ext4 (in non-journal mode if needed) if they > want to use DAX? ext4 will even support the unmodified ext2 fs, so it > shouldn't be a big hurdle, and it would avoid a lot of churn in ext2. I've heard concerns that embedded people use ext2 driver (due to smaller code size than ext4 - 1.7 MB object for ext2 vs over 7 MB object for ext4 in my build) including old XIP support. DAX has replaced the old XIP code so removing DAX from ext2 would be a regression for them - either they'd have to go with significantly larger module or without XIP. So for now I'd leave DAX in ext2. Honza -- Jan Kara <jack@xxxxxxxx> SUSE Labs, CR -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
