Subject: Re: cp(1) vs. UVM/UBC
To: Matthias Scheler <firstname.lastname@example.org>
From: Jason R Thorpe <email@example.com>
Date: 07/18/2001 08:27:15
On Tue, Jul 17, 2001 at 09:30:05PM +0000, Matthias Scheler wrote:
> our cp(1) has code which uses mmap(2) and write(2) instead of read(2) and
> write(2) to copy files. The mmap(2) implementation is not used because
> "VM_AND_BUFFER_CACHE_SYNCHRONIZED" is not defined. My question is if
> VM and buffer cache are synchronized after the integration of UBC?
Yes, except for on LFS -- on LFS, mmap doesn't work right now because
its UBC'ification hasn't been finished yet.
-- Jason R. Thorpe <firstname.lastname@example.org>