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| author | Christoph Hellwig <hch@lst.de> | 2017-12-29 08:53:53 +0100 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2018-01-08 11:46:23 -0800 |
| commit | 24e6d5a59ac7d31adc0322de2d0117dfa370936f (patch) | |
| tree | b021d2de9c55ffda9054b36e8d76487c1c06f876 /kernel/memremap.c | |
| parent | 55ce6e23ebd159bc3d8f0a20e27503e09b5d8138 (diff) | |
| download | lwn-24e6d5a59ac7d31adc0322de2d0117dfa370936f.tar.gz lwn-24e6d5a59ac7d31adc0322de2d0117dfa370936f.zip | |
mm: pass the vmem_altmap to arch_add_memory and __add_pages
We can just pass this on instead of having to do a radix tree lookup
without proper locking 2 levels into the callchain.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'kernel/memremap.c')
| -rw-r--r-- | kernel/memremap.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/kernel/memremap.c b/kernel/memremap.c index 403ab9cdb949..8488cdeead16 100644 --- a/kernel/memremap.c +++ b/kernel/memremap.c @@ -382,6 +382,7 @@ void *devm_memremap_pages(struct device *dev, struct resource *res, if (altmap) { memcpy(&page_map->altmap, altmap, sizeof(*altmap)); pgmap->altmap = &page_map->altmap; + altmap = pgmap->altmap; } pgmap->ref = ref; pgmap->res = &page_map->res; @@ -427,7 +428,7 @@ void *devm_memremap_pages(struct device *dev, struct resource *res, goto err_pfn_remap; mem_hotplug_begin(); - error = arch_add_memory(nid, align_start, align_size, false); + error = arch_add_memory(nid, align_start, align_size, altmap, false); if (!error) move_pfn_range_to_zone(&NODE_DATA(nid)->node_zones[ZONE_DEVICE], align_start >> PAGE_SHIFT, |