diff options
author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-09-27 10:34:19 -0300 |
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committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-09-27 10:34:19 -0300 |
commit | 1c29f4306f557ef5d9ed515ec8881f4d1735b058 (patch) | |
tree | 1359b9f8403af67e35bbbaae36e2b60c9bb3d2da /kernel/memremap.c | |
parent | 5b465b045af3a649a89b8a5c5bfdece20ffc0345 (diff) |
Linux-libre 4.7.5-gnupck-4.7.5-gnu
Diffstat (limited to 'kernel/memremap.c')
-rw-r--r-- | kernel/memremap.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/kernel/memremap.c b/kernel/memremap.c index 017532193..c2eb3a057 100644 --- a/kernel/memremap.c +++ b/kernel/memremap.c @@ -253,6 +253,7 @@ static void devm_memremap_pages_release(struct device *dev, void *data) align_start = res->start & ~(SECTION_SIZE - 1); align_size = ALIGN(resource_size(res), SECTION_SIZE); arch_remove_memory(align_start, align_size); + untrack_pfn(NULL, PHYS_PFN(align_start), align_size); pgmap_radix_release(res); dev_WARN_ONCE(dev, pgmap->altmap && pgmap->altmap->alloc, "%s: failed to free all reserved pages\n", __func__); @@ -288,6 +289,7 @@ void *devm_memremap_pages(struct device *dev, struct resource *res, struct percpu_ref *ref, struct vmem_altmap *altmap) { resource_size_t key, align_start, align_size, align_end; + pgprot_t pgprot = PAGE_KERNEL; struct dev_pagemap *pgmap; struct page_map *page_map; int error, nid, is_ram; @@ -363,6 +365,11 @@ void *devm_memremap_pages(struct device *dev, struct resource *res, if (nid < 0) nid = numa_mem_id(); + error = track_pfn_remap(NULL, &pgprot, PHYS_PFN(align_start), 0, + align_size); + if (error) + goto err_pfn_remap; + error = arch_add_memory(nid, align_start, align_size, true); if (error) goto err_add_memory; @@ -383,6 +390,8 @@ void *devm_memremap_pages(struct device *dev, struct resource *res, return __va(res->start); err_add_memory: + untrack_pfn(NULL, PHYS_PFN(align_start), align_size); + err_pfn_remap: err_radix: pgmap_radix_release(res); devres_free(page_map); |