Re: page_cache: how does generic_file_read really work?

1999-09-17 Thread Erez Zadok
In message <[EMAIL PROTECTED]>, "Peter J. Braam" writes: > Hi > > I wondered if someone could explain what is happening in > generic_file_read: > > More generically, I'd like to understand how in a file system I can > "get" a page and use it to copy date into/out of it. How do I then put > the

Re: update_vm_cache still in affs, hfs, ntfs and qnx4

1999-09-17 Thread Alexander Viro
[linux-fsdevel added] On Mon, 6 Sep 1999 [EMAIL PROTECTED] wrote: >It seems, that update_vm_cache was removed old time ago from kernel >(but not from includes), so affs, hfs, ntfs and qnx4 filesystems are >compilable as modules, but unusable. > > fixing up hfs is on my todo list. i

Re: page_cache: how does generic_file_read really work?

1999-09-17 Thread Peter J. Braam
Whoops, I should have said I looked at 2.3.12 Ithink. - Peter - On Fri, 17 Sep 1999, Erez Zadok wrote: > Heh, heh. Funny you should mention this Peter. I'm struggling with this > question every time a new kernel release is made, b/c I have to updated my > stackable f/s modules. > > If you

Re: page_cache: how does generic_file_read really work?

1999-09-17 Thread Erez Zadok
Heh, heh. Funny you should mention this Peter. I'm struggling with this question every time a new kernel release is made, b/c I have to updated my stackable f/s modules. If you tell what you're using (2.2 or 2.3), I'll take a stab at explaining this. Erez.

page_cache: how does generic_file_read really work?

1999-09-17 Thread Peter J. Braam
Hi I wondered if someone could explain what is happening in generic_file_read: More generically, I'd like to understand how in a file system I can "get" a page and use it to copy date into/out of it. How do I then put the page away? There seem to be several patterns, but I can't figure them o