diff options
| author | Shaohua Li <[email protected]> | 2009-09-22 00:01:19 +0000 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2009-09-22 14:17:26 +0000 |
| commit | f52407ce2deac76c87abc8211a63ea152ba72d54 (patch) | |
| tree | 6e3976fae721bd178d68d11750f7ad7f86d8feca /mm/sparse.c | |
| parent | memory hotplug: make pages from movable zone always isolatable (diff) | |
| download | kernel-f52407ce2deac76c87abc8211a63ea152ba72d54.tar.gz kernel-f52407ce2deac76c87abc8211a63ea152ba72d54.zip | |
memory hotplug: alloc page from other node in memory online
To initialize hotadded node, some pages are allocated. At that time, the
node hasn't memory, this makes the allocation always fail. In such case,
let's allocate pages from other nodes.
Signed-off-by: Shaohua Li <[email protected]>
Signed-off-by: Yakui Zhao <[email protected]>
Cc: Mel Gorman <[email protected]>
Cc: Christoph Lameter <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
Diffstat (limited to 'mm/sparse.c')
| -rw-r--r-- | mm/sparse.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/mm/sparse.c b/mm/sparse.c index da432d9f0ae8..6ce4aab69e99 100644 --- a/mm/sparse.c +++ b/mm/sparse.c @@ -62,9 +62,12 @@ static struct mem_section noinline __init_refok *sparse_index_alloc(int nid) unsigned long array_size = SECTIONS_PER_ROOT * sizeof(struct mem_section); - if (slab_is_available()) - section = kmalloc_node(array_size, GFP_KERNEL, nid); - else + if (slab_is_available()) { + if (node_state(nid, N_HIGH_MEMORY)) + section = kmalloc_node(array_size, GFP_KERNEL, nid); + else + section = kmalloc(array_size, GFP_KERNEL); + } else section = alloc_bootmem_node(NODE_DATA(nid), array_size); if (section) |