struct buf * and journaled-UFS help

Poul-Henning Kamp phk at
Wed Mar 3 13:51:33 PST 2004

In message <20040304163927.5babadf9 at>, Alexander Kabaev writes:

>If you don't need any delwri functionality struct buf provides, I would
>suggest using struct bio to route IO directly to storage drivers/geom.

No, nono! nonononoOOOOO!!!!

We do not want to maintain two I/O paths from one filesystem which
already has it's laundry picked up in SPECFS.

UFS must stick to the buffer cache for now.

Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.

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