From: Jeremy Fitzhardinge <jeremy@goop.org>
To: LKML <linux-kernel@vger.kernel.org>
Cc: Andi Kleen <ak@suse.de>, Ingo Molnar <mingo@elte.hu>,
Thomas Gleixner <tglx@linutronix.de>,
Zach Amsden <zach@vmware.com>,
Glauber de Oliveira Costa <glommer@gmail.com>,
Jeremy Fitzhardinge <Jeremy.Fitzhardinge@citrix.com>
Subject: [PATCH RFC 2/7] x86: clean up mm/init_32.c
Date: Wed, 07 Nov 2007 17:50:10 -0800 [thread overview]
Message-ID: <20071108015310.059598778@goop.org> (raw)
In-Reply-To: 20071108015008.660012621@goop.org
[-- Attachment #1: x86-cleanup-mm-init_32.patch --]
[-- Type: text/plain, Size: 2055 bytes --]
Some code reformatting in init_32.c. No functional change.
Signed-off-by: Jeremy Fitzhardinge <Jeremy.Fitzhardinge@citrix.com>
---
arch/x86/mm/init_32.c | 31 +++++++++++++++++++++----------
1 file changed, 21 insertions(+), 10 deletions(-)
===================================================================
--- a/arch/x86/mm/init_32.c
+++ b/arch/x86/mm/init_32.c
@@ -165,16 +165,25 @@ static void __init kernel_physical_mappi
pmd = one_md_table_init(pgd);
if (pfn >= max_low_pfn)
continue;
- for (pmd_idx = 0; pmd_idx < PTRS_PER_PMD && pfn < max_low_pfn; pmd++, pmd_idx++) {
+ for (pmd_idx = 0;
+ pmd_idx < PTRS_PER_PMD && pfn < max_low_pfn;
+ pmd++, pmd_idx++) {
unsigned int address = pfn * PAGE_SIZE + PAGE_OFFSET;
- /* Map with big pages if possible, otherwise create normal page tables. */
+ /* Map with big pages if possible, otherwise
+ create normal page tables. */
if (cpu_has_pse) {
- unsigned int address2 = (pfn + PTRS_PER_PTE - 1) * PAGE_SIZE + PAGE_OFFSET + PAGE_SIZE-1;
- if (is_kernel_text(address) || is_kernel_text(address2))
- set_pmd(pmd, pfn_pmd(pfn, PAGE_KERNEL_LARGE_EXEC));
- else
- set_pmd(pmd, pfn_pmd(pfn, PAGE_KERNEL_LARGE));
+ unsigned int address2;
+ pgprot_t prot = PAGE_KERNEL_LARGE;
+
+ address2 = (pfn + PTRS_PER_PTE - 1) * PAGE_SIZE +
+ PAGE_OFFSET + PAGE_SIZE-1;
+
+ if (is_kernel_text(address) ||
+ is_kernel_text(address2))
+ prot = PAGE_KERNEL_LARGE_EXEC;
+
+ set_pmd(pmd, pfn_pmd(pfn, prot));
pfn += PTRS_PER_PTE;
} else {
@@ -183,10 +192,12 @@ static void __init kernel_physical_mappi
for (pte_ofs = 0;
pte_ofs < PTRS_PER_PTE && pfn < max_low_pfn;
pte++, pfn++, pte_ofs++, address += PAGE_SIZE) {
+ pgprot_t prot = PAGE_KERNEL;
+
if (is_kernel_text(address))
- set_pte(pte, pfn_pte(pfn, PAGE_KERNEL_EXEC));
- else
- set_pte(pte, pfn_pte(pfn, PAGE_KERNEL));
+ prot = PAGE_KERNEL_EXEC;
+
+ set_pte(pte, pfn_pte(pfn, prot));
}
}
}
--
next prev parent reply other threads:[~2007-11-08 2:35 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-11-08 1:50 [PATCH RFC 0/7] Unify asm-x86/pgtable.h and page.h Jeremy Fitzhardinge
2007-11-08 1:50 ` [PATCH RFC 1/7] x86: kill mk_pte_huge Jeremy Fitzhardinge
2007-11-08 1:50 ` Jeremy Fitzhardinge [this message]
2007-11-08 16:20 ` [PATCH RFC 2/7] x86: clean up mm/init_32.c Glauber de Oliveira Costa
2007-11-08 16:39 ` Jeremy Fitzhardinge
2007-11-08 1:50 ` [PATCH RFC 3/7] x86: clean up asm-x86/page*.h Jeremy Fitzhardinge
2007-11-08 16:42 ` Glauber de Oliveira Costa
2007-11-08 20:59 ` Jeremy Fitzhardinge
2007-11-08 22:38 ` Glauber de Oliveira Costa
2007-11-08 23:03 ` Jeremy Fitzhardinge
2007-11-08 1:50 ` [PATCH RFC 4/7] x86: unify pgtable*.h Jeremy Fitzhardinge
2007-11-08 1:50 ` [PATCH RFC 5/7] x86: simplify pagetable-related operationsin paravirt.h Jeremy Fitzhardinge
2007-11-08 1:50 ` [PATCH RFC 6/7] x86/xen: simplify Xen mmu operations Jeremy Fitzhardinge
2007-11-08 1:50 ` [PATCH RFC 7/7] x86: fix up formatting in pgtable*.h Jeremy Fitzhardinge
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