diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2019-07-28 22:22:40 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2019-07-28 22:22:40 +0200 |
| commit | 7a30bdd99f37352b188575b27924c407c6ddff9e (patch) | |
| tree | 10ea40ab1b5211e75c33eaddb3a6b393ad6ee7ad /arch/x86/mm/init_64.c | |
| parent | f36cf386e3fec258a341d446915862eded3e13d8 (diff) | |
| parent | 609488bc979f99f805f34e9a32c1e3b71179d10b (diff) | |
Merge branch master from git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Pick up the spectre documentation so the Grand Schemozzle can be added.
Diffstat (limited to 'arch/x86/mm/init_64.c')
| -rw-r--r-- | arch/x86/mm/init_64.c | 14 |
1 files changed, 5 insertions, 9 deletions
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c index 0f01c7b1d217..a6b5c653727b 100644 --- a/arch/x86/mm/init_64.c +++ b/arch/x86/mm/init_64.c @@ -1198,7 +1198,6 @@ void __ref vmemmap_free(unsigned long start, unsigned long end, remove_pagetable(start, end, false, altmap); } -#ifdef CONFIG_MEMORY_HOTREMOVE static void __meminit kernel_physical_mapping_remove(unsigned long start, unsigned long end) { @@ -1213,17 +1212,12 @@ void __ref arch_remove_memory(int nid, u64 start, u64 size, { unsigned long start_pfn = start >> PAGE_SHIFT; unsigned long nr_pages = size >> PAGE_SHIFT; - struct page *page = pfn_to_page(start_pfn); - struct zone *zone; + struct page *page = pfn_to_page(start_pfn) + vmem_altmap_offset(altmap); + struct zone *zone = page_zone(page); - /* With altmap the first mapped page is offset from @start */ - if (altmap) - page += vmem_altmap_offset(altmap); - zone = page_zone(page); __remove_pages(zone, start_pfn, nr_pages, altmap); kernel_physical_mapping_remove(start, start + size); } -#endif #endif /* CONFIG_MEMORY_HOTPLUG */ static struct kcore_list kcore_vsyscall; @@ -1524,7 +1518,9 @@ int __meminit vmemmap_populate(unsigned long start, unsigned long end, int node, { int err; - if (boot_cpu_has(X86_FEATURE_PSE)) + if (end - start < PAGES_PER_SECTION * sizeof(struct page)) + err = vmemmap_populate_basepages(start, end, node); + else if (boot_cpu_has(X86_FEATURE_PSE)) err = vmemmap_populate_hugepages(start, end, node, altmap); else if (altmap) { pr_err_once("%s: no cpu support for altmap allocations\n", |