diff options
author | Linus Torvalds <torvalds@g5.osdl.org> | 2006-09-26 13:07:55 -0700 |
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committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-09-26 13:07:55 -0700 |
commit | b278240839e20fa9384ea430df463b367b90e04e (patch) | |
tree | f99f0c8cdd4cc7f177cd75440e6bd181cded7fb3 /arch/i386/mm/init.c | |
parent | dd77a4ee0f3981693d4229aa1d57cea9e526ff47 (diff) | |
parent | 3f75f42d7733e73aca5c78326489efd4189e0111 (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[PATCH] Remove outdated comment in x86-64 mmconfig code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.c | 38 |
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; * on Enable * off Disable */ -void __init noexec_setup(const char *str) +static int __init noexec_setup(char *str) { - if (!strncmp(str, "on",2) && cpu_has_nx) { - __supported_pte_mask |= _PAGE_NX; - disable_nx = 0; - } else if (!strncmp(str,"off",3)) { + if (!str || !strcmp(str, "on")) { + if (cpu_has_nx) { + __supported_pte_mask |= _PAGE_NX; + disable_nx = 0; + } + } else if (!strcmp(str,"off")) { disable_nx = 1; __supported_pte_mask &= ~_PAGE_NX; - } + } else + return -EINVAL; + + return 0; } +early_param("noexec", noexec_setup); int nx_enabled = 0; #ifdef CONFIG_X86_PAE @@ -552,18 +558,6 @@ static void __init test_wp_bit(void) } } -static void __init set_max_mapnr_init(void) -{ -#ifdef CONFIG_HIGHMEM - num_physpages = highend_pfn; -#else - num_physpages = max_low_pfn; -#endif -#ifdef CONFIG_FLATMEM - max_mapnr = num_physpages; -#endif -} - static struct kcore_list kcore_mem, kcore_vmalloc; void __init mem_init(void) @@ -590,14 +584,6 @@ void __init mem_init(void) } #endif - set_max_mapnr_init(); - -#ifdef CONFIG_HIGHMEM - high_memory = (void *) __va(highstart_pfn * PAGE_SIZE - 1) + 1; -#else - high_memory = (void *) __va(max_low_pfn * PAGE_SIZE - 1) + 1; -#endif - /* this will put all low memory onto the freelists */ totalram_pages += free_all_bootmem(); |