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| author | Arnaldo Carvalho de Melo <acme@mandriva.com> | 2005-10-29 03:10:35 -0200 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@mandriva.com> | 2005-10-29 03:10:35 -0200 |
| commit | fc228a04a4c01bbb2f898e180a14f9a976001f79 (patch) | |
| tree | c6015f399aac7f0566dfadb984d843fe67175329 /arch/ia64/mm/numa.c | |
| parent | 9fcc2e8a752f7d3d889114221b67c459557823e9 (diff) | |
| parent | 8a212ab6b8a4ccc6f3c3d1beba5f92655c576404 (diff) | |
| download | kernel_samsung_aries-fc228a04a4c01bbb2f898e180a14f9a976001f79.zip kernel_samsung_aries-fc228a04a4c01bbb2f898e180a14f9a976001f79.tar.gz kernel_samsung_aries-fc228a04a4c01bbb2f898e180a14f9a976001f79.tar.bz2 | |
Merge branch 'master' of /pub/scm/linux/kernel/git/torvalds/linux-2.6
Diffstat (limited to 'arch/ia64/mm/numa.c')
| -rw-r--r-- | arch/ia64/mm/numa.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/arch/ia64/mm/numa.c b/arch/ia64/mm/numa.c index 77118bb..4e5c8b3 100644 --- a/arch/ia64/mm/numa.c +++ b/arch/ia64/mm/numa.c @@ -47,3 +47,27 @@ paddr_to_nid(unsigned long paddr) return (i < num_node_memblks) ? node_memblk[i].nid : (num_node_memblks ? -1 : 0); } + +#if defined(CONFIG_SPARSEMEM) && defined(CONFIG_NUMA) +/* + * Because of holes evaluate on section limits. + * If the section of memory exists, then return the node where the section + * resides. Otherwise return node 0 as the default. This is used by + * SPARSEMEM to allocate the SPARSEMEM sectionmap on the NUMA node where + * the section resides. + */ +int early_pfn_to_nid(unsigned long pfn) +{ + int i, section = pfn >> PFN_SECTION_SHIFT, ssec, esec; + + for (i = 0; i < num_node_memblks; i++) { + ssec = node_memblk[i].start_paddr >> PA_SECTION_SHIFT; + esec = (node_memblk[i].start_paddr + node_memblk[i].size + + ((1L << PA_SECTION_SHIFT) - 1)) >> PA_SECTION_SHIFT; + if (section >= ssec && section < esec) + return node_memblk[i].nid; + } + + return 0; +} +#endif |