From: Russell King <rmk@arm.linux.org.uk>
To: linux-kernel@vger.kernel.org
Subject: 2.4.3-pre7 and p*_alloc
Date: Sun, 25 Mar 2001 13:50:25 +0100 [thread overview]
Message-ID: <20010325135025.A30655@flint.arm.linux.org.uk> (raw)
Hi,
I'm looking at re-implementing the ARM page table allocation macros
required for 2.4.3-pre7, and have found the following:
pte_t *pte_alloc(struct mm_struct *mm, pmd_t *pmd, unsigned long address)
{
if (!pmd_present(*pmd)) {
Why do we use pmd_present here instead of pmd_none? The same question
applies to __pmd_alloc.
--
Russell King (rmk@arm.linux.org.uk) The developer of ARM Linux
http://www.arm.linux.org.uk/personal/aboutme.html
reply other threads:[~2001-03-25 12:51 UTC|newest]
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