Posted Mar 17, 2009 17:33 UTC (Tue) by forbdonut (subscriber, #21577)
Parent article: Better than POSIX?
I don't understand one point. We keep saying that ext3 had an "implicit
guarantee" that data blocks will hit the disk before meta-data. I don't
understand why that's "implicit." It seems like the definition of data=ordered
mode says exactly that?
In particular, what does data=ordered mode actually mean in ext4 with delayed
This mode is more of data=pseudo-writeback i.e. it's some new writeback mode
that ext3 didn't have.
It's feels like the suggested alloc-on-commit mode should be called