diff options
| author | Christoph Hellwig <hch@lst.de> | 2017-12-29 08:53:55 +0100 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2018-01-08 20:46:23 +0100 |
| commit | da024512a1fa5c979257e442130ee1d468285057 (patch) | |
| tree | 5cad09e1c6c715648c61a352b94b80c47e6d5beb /mm | |
| parent | mm: pass the vmem_altmap to vmemmap_populate (diff) | |
| download | linux-da024512a1fa5c979257e442130ee1d468285057.tar.xz linux-da024512a1fa5c979257e442130ee1d468285057.zip | |
mm: pass the vmem_altmap to arch_remove_memory and __remove_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 'mm')
| -rw-r--r-- | mm/hmm.c | 4 | ||||
| -rw-r--r-- | mm/memory_hotplug.c | 8 |
2 files changed, 4 insertions, 8 deletions
@@ -838,10 +838,10 @@ static void hmm_devmem_release(struct device *dev, void *data) mem_hotplug_begin(); if (resource->desc == IORES_DESC_DEVICE_PRIVATE_MEMORY) - __remove_pages(zone, start_pfn, npages); + __remove_pages(zone, start_pfn, npages, NULL); else arch_remove_memory(start_pfn << PAGE_SHIFT, - npages << PAGE_SHIFT); + npages << PAGE_SHIFT, NULL); mem_hotplug_done(); hmm_devmem_radix_release(resource); diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index b36f1822c432..eae6bf47caf7 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -569,7 +569,7 @@ static int __remove_section(struct zone *zone, struct mem_section *ms, * calling offline_pages(). */ int __remove_pages(struct zone *zone, unsigned long phys_start_pfn, - unsigned long nr_pages) + unsigned long nr_pages, struct vmem_altmap *altmap) { unsigned long i; unsigned long map_offset = 0; @@ -577,10 +577,6 @@ int __remove_pages(struct zone *zone, unsigned long phys_start_pfn, /* In the ZONE_DEVICE case device driver owns the memory region */ if (is_dev_zone(zone)) { - struct page *page = pfn_to_page(phys_start_pfn); - struct vmem_altmap *altmap; - - altmap = to_vmem_altmap((unsigned long) page); if (altmap) map_offset = vmem_altmap_offset(altmap); } else { @@ -1890,7 +1886,7 @@ void __ref remove_memory(int nid, u64 start, u64 size) memblock_free(start, size); memblock_remove(start, size); - arch_remove_memory(start, size); + arch_remove_memory(start, size, NULL); try_offline_node(nid); |