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authorJan Beulich <jbeulich@novell.com>2006-06-26 13:59:02 +0200
committerLinus Torvalds <torvalds@g5.osdl.org>2006-06-26 10:48:20 -0700
commit5f51e139d8b29116779044f26f84cceae34c31a4 (patch)
tree23fd510f939878a3c833cf8b657d4f27ec30049d /arch/x86_64/mm
parentb633237e9c1b91b86c431c5d41266b47408b4642 (diff)
downloadop-kernel-dev-5f51e139d8b29116779044f26f84cceae34c31a4.zip
op-kernel-dev-5f51e139d8b29116779044f26f84cceae34c31a4.tar.gz
[PATCH] x86_64: miscellaneous mm/init.c fixes
- fix an off-by-one error in phys_pmd_init() - prevent phys_pmd_init() from removing mappings established earlier - fix the direct mapping early printk to in fact show the end of the range - remove an apparently orphan comment Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/x86_64/mm')
-rw-r--r--arch/x86_64/mm/init.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/arch/x86_64/mm/init.c b/arch/x86_64/mm/init.c
index 2f5f5b1..02add1d 100644
--- a/arch/x86_64/mm/init.c
+++ b/arch/x86_64/mm/init.c
@@ -88,8 +88,6 @@ void show_mem(void)
printk(KERN_INFO "%lu pages swap cached\n",cached);
}
-/* References to section boundaries */
-
int after_bootmem;
static __init void *spp_getpage(void)
@@ -259,9 +257,10 @@ phys_pmd_init(pmd_t *pmd, unsigned long address, unsigned long end)
for (i = 0; i < PTRS_PER_PMD; pmd++, i++, address += PMD_SIZE) {
unsigned long entry;
- if (address > end) {
- for (; i < PTRS_PER_PMD; i++, pmd++)
- set_pmd(pmd, __pmd(0));
+ if (address >= end) {
+ if (!after_bootmem)
+ for (; i < PTRS_PER_PMD; i++, pmd++)
+ set_pmd(pmd, __pmd(0));
break;
}
entry = _PAGE_NX|_PAGE_PSE|_KERNPG_TABLE|_PAGE_GLOBAL|address;
@@ -339,7 +338,8 @@ static void __init find_early_table_space(unsigned long end)
table_end = table_start;
early_printk("kernel direct mapping tables up to %lx @ %lx-%lx\n",
- end, table_start << PAGE_SHIFT, table_end << PAGE_SHIFT);
+ end, table_start << PAGE_SHIFT,
+ (table_start << PAGE_SHIFT) + tables);
}
/* Setup the direct mapping of the physical memory at PAGE_OFFSET.
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