Re: [PATCH AUTOSEL 6.1 08/14] ext4: enable dioread_nolock as default for bs < ps case

Hi!

[ Upstream commit e89fdcc425b6feea4dfb33877e9256757905d763 ]

dioread_nolock was originally disabled as a default option for bs < ps scenarios due to a data corruption issue. Since then, we've had some fixes in this area which address such issues. Enable dioread_nolock by default and remove the experimental warning message for bs < ps path.

dioread for bs < ps has been tested on a 64k pagesize machine using:

kvm-xfstest -C 3 -g auto

with the following configs:

64k adv bigalloc_4k bigalloc_64k data_journal encrypt dioread_nolock dioread_nolock_4k ext3 ext3conv nojournal

And no new regressions were seen compared to baseline kernel.

But no fixes, either, so not suitable for stable.

BR, Pavel