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| author | Jan Beulich <JBeulich@novell.com> | 2011-01-19 08:57:21 +0000 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-01-19 10:25:18 +0100 |
| commit | 9032160275ba018003ff390835ff8ed2b5b788b8 (patch) | |
| tree | 4c24e108c44be403dd8abe43a6bedd3ae04a48df /arch/x86/mm/numa.c | |
| parent | 6b35eb9ddcddde7b510726de03fae071178f1ec4 (diff) | |
| download | linux-9032160275ba018003ff390835ff8ed2b5b788b8.tar.bz2 | |
x86: Unify "numa=" command line option handling
In order to be able to suppress the use of SRAT tables that
32-bit Linux can't deal with (in one case known to lead to a
non-bootable system, unless disabling ACPI altogether), move the
"numa=" option handling to common code.
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Reviewed-by: Thomas Renninger <trenn@suse.de>
Cc: Tejun Heo <tj@kernel.org>
Cc: Thomas Renninger <trenn@suse.de>
LKML-Reference: <4D36B581020000780002D0FF@vpn.id2.novell.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/mm/numa.c')
| -rw-r--r-- | arch/x86/mm/numa.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/arch/x86/mm/numa.c b/arch/x86/mm/numa.c index 787c52ca49c3..ebf6d7887a38 100644 --- a/arch/x86/mm/numa.c +++ b/arch/x86/mm/numa.c @@ -2,6 +2,28 @@ #include <linux/topology.h> #include <linux/module.h> #include <linux/bootmem.h> +#include <asm/numa.h> +#include <asm/acpi.h> + +int __initdata numa_off; + +static __init int numa_setup(char *opt) +{ + if (!opt) + return -EINVAL; + if (!strncmp(opt, "off", 3)) + numa_off = 1; +#ifdef CONFIG_NUMA_EMU + if (!strncmp(opt, "fake=", 5)) + numa_emu_cmdline(opt + 5); +#endif +#ifdef CONFIG_ACPI_NUMA + if (!strncmp(opt, "noacpi", 6)) + acpi_numa = -1; +#endif + return 0; +} +early_param("numa", numa_setup); /* * Which logical CPUs are on which nodes |