From: Satya <satyakiran@gmail.com>
To: linuxppc-dev@ozlabs.org, linux-mm@kvack.org,
linux-kernel@vger.kernel.org
Subject: pte_offset_map for ppc assumes HIGHPTE
Date: Wed, 25 Jul 2007 17:16:01 -0500 [thread overview]
Message-ID: <acbcf3840707251516w301f834cj5f6a81a494d359ed@mail.gmail.com> (raw)
hello,
The implementation of pte_offset_map() for ppc assumes that PTEs are
kept in highmem (CONFIG_HIGHPTE). There is only one implmentation of
pte_offset_map() as follows (include/asm-ppc/pgtable.h):
#define pte_offset_map(dir, addr) \
((pte_t *) kmap_atomic(pmd_page(*(dir)), KM_PTE0) + pte_index(addr))
Shouldn't this be made conditional according to CONFIG_HIGHPTE is
defined or not (as implemented in include/asm-i386/pgtable.h) ?
the same goes for pte_offset_map_nested and the corresponding unmap functions.
thanks,
Satya Popuri
next reply other threads:[~2007-07-25 22:16 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-07-25 22:16 Satya [this message]
2007-07-25 23:10 ` pte_offset_map for ppc assumes HIGHPTE Benjamin Herrenschmidt
2007-07-25 23:18 ` Andreas Schwab
2007-07-25 23:22 ` Benjamin Herrenschmidt
2007-07-25 23:30 ` Dave McCracken
2007-07-26 0:18 ` Benjamin Herrenschmidt
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