Re: [PATCH] gnome-vfs: Don't monitor read-only filesystems

["Manuel Amador (Rudd-O)" <amadorm usm edu ec>]

El mié, 07-04-2004 a las 12:20, Alexander Larsson escribió:
> On Wed, 2004-04-07 at 19:09, Sriram Ramkrishna wrote:
> > On Wed, Apr 07, 2004 at 12:08:37PM +0200, Frederic Crozat wrote:
> > > No, killing fam was enough.. Fam was maintaining an open fd on the cdrom
> > > drive. Killing it allows unmounting the drive.
> > > 
> > 
> > Fam needs to be a little smarter about this.  For instance, if there
> > was some way that it knows that an unmount request was sent to one
> > of it's open fd it should try to release it.  Or cdroms and usb storage
> > devices should be handled specially..
> 
> This is the wrong solution. We should have a file notification kernel
> api that doesn't force you to have an open fd. And that doesn't totally
> suck ass.

Not quite, Alex.  Suppose I try to unmount a volume, and at the same
time FAM polls() a file on that volume.  Bang, the same error, only it
now appears intermittent and much harder to debug.

This is exactly what happens when dnotify usage is disabled in FAM,
which would amount to not using a file notif. kernel api.

> 
> =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
>  Alexander Larsson                                            Red Hat, Inc 
>                    alexl redhat com    alla lysator liu se 
> He's an underprivileged flyboy dwarf haunted by an iconic dead American 
> confidante She's a psychotic gold-digging museum curator with someone else's 
> memories. They fight crime!