* multiple address_space mappings
@ 2009-05-16 14:53 Nai Xia
0 siblings, 0 replies; only message in thread
From: Nai Xia @ 2009-05-16 14:53 UTC (permalink / raw)
To: linux-mm
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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2009-05-16 14:53 multiple address_space mappings Nai Xia
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