diff options
| author | Dean Roe <roe@sgi.com> | 2005-11-09 14:25:06 -0600 |
|---|---|---|
| committer | Tony Luck <tony.luck@intel.com> | 2005-11-29 09:24:10 -0800 |
| commit | b77dae5293efba42ea1ff04d410ee68e66d5b0cf (patch) | |
| tree | e7cff6570c32d55e4743f0e59c53ab9086c1efd6 /arch/ia64 | |
| parent | 624f54be206adf970cd8eece16446b027913e533 (diff) | |
| download | lwn-b77dae5293efba42ea1ff04d410ee68e66d5b0cf.tar.gz lwn-b77dae5293efba42ea1ff04d410ee68e66d5b0cf.zip | |
[IA64] - Make pfn_valid more precise for SGI Altix systems
A single SGI Altix system can be divided into multiple partitions,
each running their own instance of the Linux kernel. pfn_valid()
is currently not optimal for any but the first partition, since it
does not compare the pfn with min_low_pfn before calling the more
costly ia64_pfn_valid().
Signed-off-by: Dean Roe <roe@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'arch/ia64')
| -rw-r--r-- | arch/ia64/kernel/ia64_ksyms.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/ia64/kernel/ia64_ksyms.c b/arch/ia64/kernel/ia64_ksyms.c index 01572814abe4..5db9d3bcbbcb 100644 --- a/arch/ia64/kernel/ia64_ksyms.c +++ b/arch/ia64/kernel/ia64_ksyms.c @@ -42,6 +42,7 @@ EXPORT_SYMBOL(clear_page); #ifdef CONFIG_VIRTUAL_MEM_MAP #include <linux/bootmem.h> +EXPORT_SYMBOL(min_low_pfn); /* defined by bootmem.c, but not exported by generic code */ EXPORT_SYMBOL(max_low_pfn); /* defined by bootmem.c, but not exported by generic code */ #endif |