From: Nai Xia <nai.xia@gmail.com>
To: linux-mm@kvack.org
Subject: multiple address_space mappings
Date: Sat, 16 May 2009 22:53:05 +0800 [thread overview]
Message-ID: <ab418ea90905160753v52d82b2bj3fe3c85ea167a811@mail.gmail.com> (raw)
Hi, all
It may be a stupid question. But if a page (composed of contiguous
blocks)on a disk was read through two different paths --- one from
mmap of a regular file and another is direct reading of the block
device. Can they share the same page frame ? If they can, should this
page have two page->mappings ?
It they cannot (I think this maybe true), how should we consider this
inconsistency?
Thanks !
Regards,
Nai
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reply other threads:[~2009-05-16 14:52 UTC|newest]
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