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| author | Tejun Heo <tj@kernel.org> | 2011-02-16 12:13:06 +0100 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2011-02-16 12:13:06 +0100 |
| commit | a9aec56afac238e4ed3980bd10b22121b83866dd (patch) | |
| tree | 77ef26c3361ebb54cbb08897c0ac2763e2c5edbe /arch | |
| parent | 940fed2e79a15cf0d006c860d7811adbe5c19882 (diff) | |
| download | blackbird-op-linux-a9aec56afac238e4ed3980bd10b22121b83866dd.tar.gz blackbird-op-linux-a9aec56afac238e4ed3980bd10b22121b83866dd.zip | |
x86-64, NUMA: Wrap acpi_numa_init() so that failure can be indicated by return value
Because of the way ACPI tables are parsed, the generic
acpi_numa_init() couldn't return failure when error was detected by
arch hooks. Instead, the failure state was recorded and later arch
dependent init hook - acpi_scan_nodes() - would fail.
Wrap acpi_numa_init() with x86_acpi_numa_init() so that failure can be
indicated as return value immediately. This is in preparation for
further NUMA init cleanups.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Cyrill Gorcunov <gorcunov@gmail.com>
Cc: Shaohui Zheng <shaohui.zheng@intel.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/include/asm/acpi.h | 1 | ||||
| -rw-r--r-- | arch/x86/kernel/setup.c | 2 | ||||
| -rw-r--r-- | arch/x86/mm/srat_64.c | 10 |
3 files changed, 12 insertions, 1 deletions
diff --git a/arch/x86/include/asm/acpi.h b/arch/x86/include/asm/acpi.h index 4e5dff9e0b39..06fb7865eff2 100644 --- a/arch/x86/include/asm/acpi.h +++ b/arch/x86/include/asm/acpi.h @@ -187,6 +187,7 @@ struct bootnode; extern int acpi_numa; extern void acpi_get_nodes(struct bootnode *physnodes, unsigned long start, unsigned long end); +extern int x86_acpi_numa_init(void); extern int acpi_scan_nodes(void); #define NR_NODE_MEMBLKS (MAX_NUMNODES*2) diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c index 96810a3c6003..c9a139c3056b 100644 --- a/arch/x86/kernel/setup.c +++ b/arch/x86/kernel/setup.c @@ -995,7 +995,7 @@ void __init setup_arch(char **cmdline_p) /* * Parse SRAT to discover nodes. */ - acpi = !acpi_numa_init(); + acpi = !x86_acpi_numa_init(); #endif #ifdef CONFIG_AMD_NUMA diff --git a/arch/x86/mm/srat_64.c b/arch/x86/mm/srat_64.c index 4f9dbf066ca4..56b92635d87c 100644 --- a/arch/x86/mm/srat_64.c +++ b/arch/x86/mm/srat_64.c @@ -358,6 +358,16 @@ void __init acpi_get_nodes(struct bootnode *physnodes, unsigned long start, } #endif /* CONFIG_NUMA_EMU */ +int __init x86_acpi_numa_init(void) +{ + int ret; + + ret = acpi_numa_init(); + if (ret < 0) + return ret; + return srat_disabled() ? -EINVAL : 0; +} + /* Use the information discovered above to actually set up the nodes. */ int __init acpi_scan_nodes(void) { |
