Merge branch 'for-4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/dennis/percpu
[sfrench/cifs-2.6.git] / mm / percpu.c
index f5c2796fe63e5c5c0e3a8a89b079528bbb8390ab..db86282fd024580cbf5c41f01cb6d5447a9e1791 100644 (file)
@@ -65,7 +65,7 @@
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
 #include <linux/bitmap.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/err.h>
 #include <linux/lcm.h>
 #include <linux/list.h>
@@ -1101,9 +1101,9 @@ static struct pcpu_chunk * __init pcpu_alloc_first_chunk(unsigned long tmp_addr,
        region_size = ALIGN(start_offset + map_size, lcm_align);
 
        /* allocate chunk */
-       chunk = memblock_virt_alloc(sizeof(struct pcpu_chunk) +
-                                   BITS_TO_LONGS(region_size >> PAGE_SHIFT),
-                                   0);
+       chunk = memblock_alloc(sizeof(struct pcpu_chunk) +
+                              BITS_TO_LONGS(region_size >> PAGE_SHIFT),
+                              SMP_CACHE_BYTES);
 
        INIT_LIST_HEAD(&chunk->list);
 
@@ -1114,12 +1114,12 @@ static struct pcpu_chunk * __init pcpu_alloc_first_chunk(unsigned long tmp_addr,
        chunk->nr_pages = region_size >> PAGE_SHIFT;
        region_bits = pcpu_chunk_map_bits(chunk);
 
-       chunk->alloc_map = memblock_virt_alloc(BITS_TO_LONGS(region_bits) *
-                                              sizeof(chunk->alloc_map[0]), 0);
-       chunk->bound_map = memblock_virt_alloc(BITS_TO_LONGS(region_bits + 1) *
-                                              sizeof(chunk->bound_map[0]), 0);
-       chunk->md_blocks = memblock_virt_alloc(pcpu_chunk_nr_blocks(chunk) *
-                                              sizeof(chunk->md_blocks[0]), 0);
+       chunk->alloc_map = memblock_alloc(BITS_TO_LONGS(region_bits) * sizeof(chunk->alloc_map[0]),
+                                         SMP_CACHE_BYTES);
+       chunk->bound_map = memblock_alloc(BITS_TO_LONGS(region_bits + 1) * sizeof(chunk->bound_map[0]),
+                                         SMP_CACHE_BYTES);
+       chunk->md_blocks = memblock_alloc(pcpu_chunk_nr_blocks(chunk) * sizeof(chunk->md_blocks[0]),
+                                         SMP_CACHE_BYTES);
        pcpu_init_md_blocks(chunk);
 
        /* manage populated page bitmap */
@@ -1212,6 +1212,7 @@ static void pcpu_free_chunk(struct pcpu_chunk *chunk)
 {
        if (!chunk)
                return;
+       pcpu_mem_free(chunk->md_blocks);
        pcpu_mem_free(chunk->bound_map);
        pcpu_mem_free(chunk->alloc_map);
        pcpu_mem_free(chunk);
@@ -1887,7 +1888,7 @@ struct pcpu_alloc_info * __init pcpu_alloc_alloc_info(int nr_groups,
                          __alignof__(ai->groups[0].cpu_map[0]));
        ai_size = base_size + nr_units * sizeof(ai->groups[0].cpu_map[0]);
 
-       ptr = memblock_virt_alloc_nopanic(PFN_ALIGN(ai_size), PAGE_SIZE);
+       ptr = memblock_alloc_nopanic(PFN_ALIGN(ai_size), PAGE_SIZE);
        if (!ptr)
                return NULL;
        ai = ptr;
@@ -2074,12 +2075,14 @@ int __init pcpu_setup_first_chunk(const struct pcpu_alloc_info *ai,
        PCPU_SETUP_BUG_ON(pcpu_verify_alloc_info(ai) < 0);
 
        /* process group information and build config tables accordingly */
-       group_offsets = memblock_virt_alloc(ai->nr_groups *
-                                            sizeof(group_offsets[0]), 0);
-       group_sizes = memblock_virt_alloc(ai->nr_groups *
-                                          sizeof(group_sizes[0]), 0);
-       unit_map = memblock_virt_alloc(nr_cpu_ids * sizeof(unit_map[0]), 0);
-       unit_off = memblock_virt_alloc(nr_cpu_ids * sizeof(unit_off[0]), 0);
+       group_offsets = memblock_alloc(ai->nr_groups * sizeof(group_offsets[0]),
+                                      SMP_CACHE_BYTES);
+       group_sizes = memblock_alloc(ai->nr_groups * sizeof(group_sizes[0]),
+                                    SMP_CACHE_BYTES);
+       unit_map = memblock_alloc(nr_cpu_ids * sizeof(unit_map[0]),
+                                 SMP_CACHE_BYTES);
+       unit_off = memblock_alloc(nr_cpu_ids * sizeof(unit_off[0]),
+                                 SMP_CACHE_BYTES);
 
        for (cpu = 0; cpu < nr_cpu_ids; cpu++)
                unit_map[cpu] = UINT_MAX;
@@ -2143,8 +2146,8 @@ int __init pcpu_setup_first_chunk(const struct pcpu_alloc_info *ai,
         * empty chunks.
         */
        pcpu_nr_slots = __pcpu_size_to_slot(pcpu_unit_size) + 2;
-       pcpu_slot = memblock_virt_alloc(
-                       pcpu_nr_slots * sizeof(pcpu_slot[0]), 0);
+       pcpu_slot = memblock_alloc(pcpu_nr_slots * sizeof(pcpu_slot[0]),
+                                  SMP_CACHE_BYTES);
        for (i = 0; i < pcpu_nr_slots; i++)
                INIT_LIST_HEAD(&pcpu_slot[i]);
 
@@ -2457,7 +2460,7 @@ int __init pcpu_embed_first_chunk(size_t reserved_size, size_t dyn_size,
        size_sum = ai->static_size + ai->reserved_size + ai->dyn_size;
        areas_size = PFN_ALIGN(ai->nr_groups * sizeof(void *));
 
-       areas = memblock_virt_alloc_nopanic(areas_size, 0);
+       areas = memblock_alloc_nopanic(areas_size, SMP_CACHE_BYTES);
        if (!areas) {
                rc = -ENOMEM;
                goto out_free;
@@ -2598,7 +2601,7 @@ int __init pcpu_page_first_chunk(size_t reserved_size,
        /* unaligned allocations can't be freed, round up to page size */
        pages_size = PFN_ALIGN(unit_pages * num_possible_cpus() *
                               sizeof(pages[0]));
-       pages = memblock_virt_alloc(pages_size, 0);
+       pages = memblock_alloc(pages_size, SMP_CACHE_BYTES);
 
        /* allocate pages */
        j = 0;
@@ -2687,7 +2690,7 @@ EXPORT_SYMBOL(__per_cpu_offset);
 static void * __init pcpu_dfl_fc_alloc(unsigned int cpu, size_t size,
                                       size_t align)
 {
-       return  memblock_virt_alloc_from_nopanic(
+       return  memblock_alloc_from_nopanic(
                        size, align, __pa(MAX_DMA_ADDRESS));
 }
 
@@ -2736,7 +2739,7 @@ void __init setup_per_cpu_areas(void)
        void *fc;
 
        ai = pcpu_alloc_alloc_info(1, 1);
-       fc = memblock_virt_alloc_from_nopanic(unit_size,
+       fc = memblock_alloc_from_nopanic(unit_size,
                                              PAGE_SIZE,
                                              __pa(MAX_DMA_ADDRESS));
        if (!ai || !fc)