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SubjectRe: [PATCH] double flush_page_to_ram
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   From: Hugh Dickins <hugh@veritas.com>
Date: Thu, 9 May 2002 14:50:11 +0100 (BST)

Agreed. It's better to keep flush_page_to_ram out of filemap_nopage
(and how many other _nopages that ought at present to have it according
to David, but don't). As things stand, it's being done unnecessarily
twice on the shared maps: your proposal fixes that.

There are many other cases where flush_page_to_ram overflushes,
its deficiencies are known.

This is why I am suggesting "don't touch this in 2.4 and let's
kill it off in 2.5"
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