Subject: Re: direct I/O again
To: None <chuq@chuq.com>
From: YAMAMOTO Takashi <yamt@mwd.biglobe.ne.jp>
List: tech-kern
Date: 03/28/2006 19:00:33
> I've finished the initial implementation of direct I/O,
> there's an updated diff in:
> 
> ftp://ftp.netbsd.org/pub/NetBSD/misc/chs/dio/diff.directio.3

- you need to check values of uvm_km_alloc or specify UVM_KMF_WAITVA.

- what prevents the vnode from getting VMAPPED,
  while you are sleeping somewhere in genfs_do_directio?

YAMAMOTO Takashi