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authorLinus Torvalds <torvalds@g5.osdl.org>2006-09-26 16:07:55 -0400
committerLinus Torvalds <torvalds@g5.osdl.org>2006-09-26 16:07:55 -0400
commitb278240839e20fa9384ea430df463b367b90e04e (patch)
treef99f0c8cdd4cc7f177cd75440e6bd181cded7fb3 /arch/i386/mm/init.c
parentdd77a4ee0f3981693d4229aa1d57cea9e526ff47 (diff)
parent3f75f42d7733e73aca5c78326489efd4189e0111 (diff)
Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6
* 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6: (225 commits) [PATCH] Don't set calgary iommu as default y [PATCH] i386/x86-64: New Intel feature flags [PATCH] x86: Add a cumulative thermal throttle event counter. [PATCH] i386: Make the jiffies compares use the 64bit safe macros. [PATCH] x86: Refactor thermal throttle processing [PATCH] Add 64bit jiffies compares (for use with get_jiffies_64) [PATCH] Fix unwinder warning in traps.c [PATCH] x86: Allow disabling early pci scans with pci=noearly or disallowing conf1 [PATCH] x86: Move direct PCI scanning functions out of line [PATCH] i386/x86-64: Make all early PCI scans dependent on CONFIG_PCI [PATCH] Don't leak NT bit into next task [PATCH] i386/x86-64: Work around gcc bug with noreturn functions in unwinder [PATCH] Fix some broken white space in ia32_signal.c [PATCH] Initialize argument registers for 32bit signal handlers. [PATCH] Remove all traces of signal number conversion [PATCH] Don't synchronize time reading on single core AMD systems [PATCH] Remove outdated comment in x86-64 mmconfig code [PATCH] Use string instructions for Core2 copy/clear [PATCH] x86: - restore i8259A eoi status on resume [PATCH] i386: Split multi-line printk in oops output. ...
Diffstat (limited to 'arch/i386/mm/init.c')
-rw-r--r--arch/i386/mm/init.c38
1 files changed, 12 insertions, 26 deletions
diff --git a/arch/i386/mm/init.c b/arch/i386/mm/init.c
index efd0bcdac65d..4a5a914b3432 100644
--- a/arch/i386/mm/init.c
+++ b/arch/i386/mm/init.c
@@ -435,16 +435,22 @@ u64 __supported_pte_mask __read_mostly = ~_PAGE_NX;
435 * on Enable 435 * on Enable
436 * off Disable 436 * off Disable
437 */ 437 */
438void __init noexec_setup(const char *str) 438static int __init noexec_setup(char *str)
439{ 439{
440 if (!strncmp(str, "on",2) && cpu_has_nx) { 440 if (!str || !strcmp(str, "on")) {
441 __supported_pte_mask |= _PAGE_NX; 441 if (cpu_has_nx) {
442 disable_nx = 0; 442 __supported_pte_mask |= _PAGE_NX;
443 } else if (!strncmp(str,"off",3)) { 443 disable_nx = 0;
444 }
445 } else if (!strcmp(str,"off")) {
444 disable_nx = 1; 446 disable_nx = 1;
445 __supported_pte_mask &= ~_PAGE_NX; 447 __supported_pte_mask &= ~_PAGE_NX;
446 } 448 } else
449 return -EINVAL;
450
451 return 0;
447} 452}
453early_param("noexec", noexec_setup);
448 454
449int nx_enabled = 0; 455int nx_enabled = 0;
450#ifdef CONFIG_X86_PAE 456#ifdef CONFIG_X86_PAE
@@ -552,18 +558,6 @@ static void __init test_wp_bit(void)
552 } 558 }
553} 559}
554 560
555static void __init set_max_mapnr_init(void)
556{
557#ifdef CONFIG_HIGHMEM
558 num_physpages = highend_pfn;
559#else
560 num_physpages = max_low_pfn;
561#endif
562#ifdef CONFIG_FLATMEM
563 max_mapnr = num_physpages;
564#endif
565}
566
567static struct kcore_list kcore_mem, kcore_vmalloc; 561static struct kcore_list kcore_mem, kcore_vmalloc;
568 562
569void __init mem_init(void) 563void __init mem_init(void)
@@ -590,14 +584,6 @@ void __init mem_init(void)
590 } 584 }
591#endif 585#endif
592 586
593 set_max_mapnr_init();
594
595#ifdef CONFIG_HIGHMEM
596 high_memory = (void *) __va(highstart_pfn * PAGE_SIZE - 1) + 1;
597#else
598 high_memory = (void *) __va(max_low_pfn * PAGE_SIZE - 1) + 1;
599#endif
600
601 /* this will put all low memory onto the freelists */ 587 /* this will put all low memory onto the freelists */
602 totalram_pages += free_all_bootmem(); 588 totalram_pages += free_all_bootmem();
603 589