Re: [Patch] Selective removal mode for udev

[Kay Sievers <kay.sievers@vrfy.org>]

On Fri, Feb 11, 2005 at 10:52:28AM +0100, Kay Sievers wrote:
> On Fri, 2005-02-11 at 10:18 +0100, Hannes Reinecke wrote:
> >Because we are chicken ...
> >
> >This patch adds a 'removal' mode for udev, with three possible choices:
> >
> >- all: default behaviour; remove all nodes and symlinks
> >- symlink_only: only remove symlinks, but keep device nodes
> >- none: do not remove nodes nor symlinks.
> >
> >The latter is equivalent with the existing 'ignore_remove' rule 
> >statement, but implemented as a global switch.
> >
> >Properly documented in the man-page etc.
> >
> >This is basically for those worrying about 'my device node may be 
> >vanishing and ooh everything will stop working'.
> >
> >Comments etc welcome.
> 
> Hmm, wouldn't it be nicer to be able to set these things along with the
> rules, so we still have only one source of policy. And we are able to
> match against SUBSYSTEMS, DRIVERS and such things?
> 
> Something like an OPTIONS="..." key, which may contain a list of keys
> and we can also move the no_partitions key into that.
> 
> This way we can specify the "remove-policy" with an "option" only rule
> globally or only for a certain subsystem.

I've added something to my tree:
  http://vrfy.bkbits.net:8080/udev/patch@1.1143?nav=cset@1.1143

We have options-only rules now:
  BUS="scsi", SUBSYSTEM="block", SYSFS{removable}="1", OPTIONS="all_partitions"

will create all partitions for all block devices which are known to have removable
media.

It does not implement your remove-only-the-symlinks option. For what was it meant
to be used?

Thanks,
Kay


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