Re: e4defrag and immutable files

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On Fri, May 28, 2010 at 4:14 PM, H. Peter Anvin <hpa@xxxxxxxxx> wrote:
>
> Hi all,
>
> I have looked a bit at e4defrag, and it does not appear to prevent the
> relocation of files marked immutable.  This is a problem for boot
> loaders, which may need to have a block pointer to a specific file in
> order to bootstrap themselves.
>
> Would it be possible to either:
>
> a) prevent e4defrag and/or EXT4_IOC_MOVE_EXT from relocating an
> immutable file, or
> b) add a new attribute with the above property (in case there is
> legitimate need to move around immutable files)?
>
>        -hpa


Other projects / tools than e4defrag use EXT4_IOC_MOVE_EXT, so it
would be best to do this in the kernel in my opinion.

Greg
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