| init.c (cddb5ddf2b76debdb8cad1728ad0a9321383d933) | init.c (c9118e6c37bff9ade90b638207a6e0db676ee6a9) |
|---|---|
| 1// SPDX-License-Identifier: GPL-2.0-only 2/* 3 * linux/arch/arm/mm/init.c 4 * 5 * Copyright (C) 1995-2005 Russell King 6 */ 7#include <linux/kernel.h> 8#include <linux/errno.h> --- 285 unchanged lines hidden (view full) --- 294 memblock_free_early(pg, pgend - pg); 295} 296 297/* 298 * The mem_map array can get very big. Free the unused area of the memory map. 299 */ 300static void __init free_unused_memmap(void) 301{ | 1// SPDX-License-Identifier: GPL-2.0-only 2/* 3 * linux/arch/arm/mm/init.c 4 * 5 * Copyright (C) 1995-2005 Russell King 6 */ 7#include <linux/kernel.h> 8#include <linux/errno.h> --- 285 unchanged lines hidden (view full) --- 294 memblock_free_early(pg, pgend - pg); 295} 296 297/* 298 * The mem_map array can get very big. Free the unused area of the memory map. 299 */ 300static void __init free_unused_memmap(void) 301{ |
| 302 unsigned long start, prev_end = 0; 303 struct memblock_region *reg; | 302 unsigned long start, end, prev_end = 0; 303 int i; |
| 304 305 /* 306 * This relies on each bank being in address order. 307 * The banks are sorted previously in bootmem_init(). 308 */ | 304 305 /* 306 * This relies on each bank being in address order. 307 * The banks are sorted previously in bootmem_init(). 308 */ |
| 309 for_each_memblock(memory, reg) { 310 start = memblock_region_memory_base_pfn(reg); 311 | 309 for_each_mem_pfn_range(i, MAX_NUMNODES, &start, &end, NULL) { |
| 312#ifdef CONFIG_SPARSEMEM 313 /* 314 * Take care not to free memmap entries that don't exist 315 * due to SPARSEMEM sections which aren't present. 316 */ 317 start = min(start, 318 ALIGN(prev_end, PAGES_PER_SECTION)); 319#else --- 11 unchanged lines hidden (view full) --- 331 if (prev_end && prev_end < start) 332 free_memmap(prev_end, start); 333 334 /* 335 * Align up here since the VM subsystem insists that the 336 * memmap entries are valid from the bank end aligned to 337 * MAX_ORDER_NR_PAGES. 338 */ | 310#ifdef CONFIG_SPARSEMEM 311 /* 312 * Take care not to free memmap entries that don't exist 313 * due to SPARSEMEM sections which aren't present. 314 */ 315 start = min(start, 316 ALIGN(prev_end, PAGES_PER_SECTION)); 317#else --- 11 unchanged lines hidden (view full) --- 329 if (prev_end && prev_end < start) 330 free_memmap(prev_end, start); 331 332 /* 333 * Align up here since the VM subsystem insists that the 334 * memmap entries are valid from the bank end aligned to 335 * MAX_ORDER_NR_PAGES. 336 */ |
| 339 prev_end = ALIGN(memblock_region_memory_end_pfn(reg), 340 MAX_ORDER_NR_PAGES); | 337 prev_end = ALIGN(end, MAX_ORDER_NR_PAGES); |
| 341 } 342 343#ifdef CONFIG_SPARSEMEM 344 if (!IS_ALIGNED(prev_end, PAGES_PER_SECTION)) 345 free_memmap(prev_end, 346 ALIGN(prev_end, PAGES_PER_SECTION)); 347#endif 348} --- 275 unchanged lines hidden --- | 338 } 339 340#ifdef CONFIG_SPARSEMEM 341 if (!IS_ALIGNED(prev_end, PAGES_PER_SECTION)) 342 free_memmap(prev_end, 343 ALIGN(prev_end, PAGES_PER_SECTION)); 344#endif 345} --- 275 unchanged lines hidden --- |