Re: [PATCH] zap_pte_range should not mark non-uptodate pages dirty

[Andrea Arcangeli]

On Thu, Oct 21, 2004 at 10:51:34PM -0400, Rik van Riel wrote:
> That depends on the filesystem.  I hope the clustered filesystems

I agree if you do a "is_underlying_fs_GFS?" check then you can make more
assumptions.

But if you don't do that, the linux API always left undefined the
mmapped contents after O_DIRECT writes on the mmapped data.

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