I'm confused by the following:
/*
* Array of node states.
*/
nodemask_t node_states[NR_NODE_STATES] __read_mostly = {
[N_POSSIBLE] = NODE_MASK_ALL,
[N_ONLINE] = { { [0] = 1UL } },
#ifndef CONFIG_NUMA
[N_NORMAL_MEMORY] = { { [0] = 1UL } },
#ifdef CONFIG_HIGHMEM
[N_HIGH_MEMORY] = { { [0] = 1UL } },
#endif
#ifdef CONFIG_MOVABLE_NODE
[N_MEMORY] = { { [0] = 1UL } },
#endif
[N_CPU] = { { [0] = 1UL } },
#endif /* NUMA */
};
Why are we checking for CONFIG_MOVABLE_NODE above when mm/Kconfig says:
config MOVABLE_NODE
boolean "Enable to assign a node which has only movable memory"
depends on HAVE_MEMBLOCK
depends on NO_BOOTMEM
depends on X86_64
depends on NUMA
? Doesn't that mean that you can't have CONFIG_HAVE_MOVABLE_NODE without
CONFIG_NUMA? But we're in a #ifndef CONFIG_NUMA block above...
Thanks,
Nish
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