Re: [RFC/PATCH] revoke/frevoke system calls

[roucaries bastien]

On 7/20/06, Bodo Eggert <7eggert@xxxxxxxxxxxx> wrote:
> Pekka J Enberg <penberg@xxxxxxxxxxxxxx> wrote:
> > From: Pekka Enberg <penberg@xxxxxxxxxxxxxx>
>
> > This patch implements the revoke(2) and frevoke(2) system calls for all
> > types of files. We revoke files in two passes: first we scan all open
> > files that refer to the inode and substitute the struct file pointer in fd
> > table with NULL causing all subsequent operations on that fd to fail.
> > After we have done that to all file descriptors, we close the files and
> > take down mmaps.
>
> RFC2: Make umount -f work on local fs using this feature.
RFC3: use preliminary work about umount -f in order to get revoke for free.
See for instance
http://developer.osdl.org/dev/fumount/kernel2/patches/2.6.12/1/forced-unmount-2.6.12-1.patch
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