Subject: Re: mfs read operations.
To: Wojciech Puchar <>
From: Jason R Thorpe <>
List: tech-kern
Date: 07/23/2001 12:30:31
On Mon, Jul 23, 2001 at 09:16:07PM +0200, Wojciech Puchar wrote:

 > could it be changed that when file is deleted all pages belonging to it
 > will be unmapped (remapped to /dev/zero back)?
 > now when i put 50MB file to mfs and then delete it, mfs process has 50MB
 > RSS and have to swap it out

Not the way MFS is currently implemented.  MFS has no idea when the blocks
of a file are actually freed, because it merely provides backing store
for FFS.

        -- Jason R. Thorpe <>