Re: [PATCH 1/3] NOMMU: Provide shared-writable mmap support on ramfs

From: David Howells
Date: Wed Nov 23 2005 - 14:25:02 EST

David Howells <dhowells@xxxxxxxxxx> wrote:

> > Truncate is _supposed_ to get rid of any shared mmap stuff.
> Yeah... but under _NOMMU_ conditions, it can't. There's no MMU around to
> enforce the fact that the mapping has been shrunk.

I may not have mentioned, but this does not apply under MMU conditions. A
different file in fs/ramfs/ swings into action and does the normal thing.

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