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| author | Tejun Heo <tj@kernel.org> | 2011-03-02 11:32:47 +0100 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2011-03-02 16:34:21 +0100 |
| commit | eb8c1e2c830fc25c93bc94e215ed387fe142a98d (patch) | |
| tree | 21c87bb959e98a1639f6de575f8a630c4cb4e261 /arch/x86/mm/numa_emulation.c | |
| parent | x86-64, NUMA: Fix distance table handling (diff) | |
| download | linux-eb8c1e2c830fc25c93bc94e215ed387fe142a98d.tar.xz linux-eb8c1e2c830fc25c93bc94e215ed387fe142a98d.zip | |
x86-64, NUMA: Better explain numa_distance handling
Handling of out-of-bounds distances and allocation failure can use
better documentation. Add it.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Yinghai Lu <yinghai@kernel.org>
Acked-by: David Rientjes <rientjes@google.com>
Diffstat (limited to 'arch/x86/mm/numa_emulation.c')
| -rw-r--r-- | arch/x86/mm/numa_emulation.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/arch/x86/mm/numa_emulation.c b/arch/x86/mm/numa_emulation.c index 0afa25d967ba..aeecea93820f 100644 --- a/arch/x86/mm/numa_emulation.c +++ b/arch/x86/mm/numa_emulation.c @@ -379,7 +379,11 @@ void __init numa_emulation(struct numa_meminfo *numa_meminfo, int numa_dist_cnt) if (emu_nid_to_phys[i] == NUMA_NO_NODE) emu_nid_to_phys[i] = 0; - /* transform distance table */ + /* + * Transform distance table. numa_set_distance() ignores all + * out-of-bound distances. Just call it for every possible node + * combination. + */ numa_reset_distance(); for (i = 0; i < MAX_NUMNODES; i++) { for (j = 0; j < MAX_NUMNODES; j++) { |