cregit-Linux how code gets into the kernel

Release 4.8 mm/bootmem.c

Directory: mm
/*
 *  bootmem - A boot-time physical memory allocator and configurator
 *
 *  Copyright (C) 1999 Ingo Molnar
 *                1999 Kanoj Sarcar, SGI
 *                2008 Johannes Weiner
 *
 * Access to this subsystem has to be serialized externally (which is true
 * for the boot process anyway).
 */
#include <linux/init.h>
#include <linux/pfn.h>
#include <linux/slab.h>
#include <linux/bootmem.h>
#include <linux/export.h>
#include <linux/kmemleak.h>
#include <linux/range.h>
#include <linux/memblock.h>
#include <linux/bug.h>
#include <linux/io.h>

#include <asm/processor.h>

#include "internal.h"

#ifndef CONFIG_NEED_MULTIPLE_NODES

struct pglist_data __refdata contig_page_data = {
	.bdata = &bootmem_node_data[0]
};

EXPORT_SYMBOL(contig_page_data);
#endif


unsigned long max_low_pfn;

unsigned long min_low_pfn;

unsigned long max_pfn;

unsigned long long max_possible_pfn;


bootmem_data_t bootmem_node_data[MAX_NUMNODES] __initdata;


static struct list_head bdata_list __initdata = LIST_HEAD_INIT(bdata_list);


static int bootmem_debug;


static int __init bootmem_debug_setup(char *buf) { bootmem_debug = 1; return 0; }

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johannes weinerjohannes weiner18100.00%1100.00%
Total18100.00%1100.00%

early_param("bootmem_debug", bootmem_debug_setup); #define bdebug(fmt, args...) ({ \ if (unlikely(bootmem_debug)) \ pr_info("bootmem::%s " fmt, \ __func__, ## args); \ })
static unsigned long __init bootmap_bytes(unsigned long pages) { unsigned long bytes = DIV_ROUND_UP(pages, 8); return ALIGN(bytes, sizeof(long)); }

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johannes weinerjohannes weiner3088.24%266.67%
uwe kleine-koeniguwe kleine-koenig411.76%133.33%
Total34100.00%3100.00%

/** * bootmem_bootmap_pages - calculate bitmap size in pages * @pages: number of pages the bitmap has to represent */
unsigned long __init bootmem_bootmap_pages(unsigned long pages) { unsigned long bytes = bootmap_bytes(pages); return PAGE_ALIGN(bytes) >> PAGE_SHIFT; }

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pre-gitpre-git1657.14%150.00%
johannes weinerjohannes weiner1242.86%150.00%
Total28100.00%2100.00%

/* * link bdata in order */
static void __init link_bootmem(bootmem_data_t *bdata) { bootmem_data_t *ent; list_for_each_entry(ent, &bdata_list, list) { if (bdata->node_min_pfn < ent->node_min_pfn) { list_add_tail(&bdata->list, &ent->list); return; } } list_add_tail(&bdata->list, &bdata_list); }

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kamezawa hiroyukikamezawa hiroyuki3251.61%120.00%
gavin shangavin shan2337.10%120.00%
johannes weinerjohannes weiner69.68%240.00%
franck bui-huufranck bui-huu11.61%120.00%
Total62100.00%5100.00%

/* * Called once to set up the allocator itself. */
static unsigned long __init init_bootmem_core(bootmem_data_t *bdata, unsigned long mapstart, unsigned long start, unsigned long end) { unsigned long mapsize; mminit_validate_memmodel_limits(&start, &end); bdata->node_bootmem_map = phys_to_virt(PFN_PHYS(mapstart)); bdata->node_min_pfn = start; bdata->node_low_pfn = end; link_bootmem(bdata); /* * Initially all pages are reserved - setup_arch() has to * register free RAM areas explicitly. */ mapsize = bootmap_bytes(end - start); memset(bdata->node_bootmem_map, 0xff, mapsize); bdebug("nid=%td start=%lx map=%lx end=%lx mapsize=%lx\n", bdata - bootmem_node_data, start, mapstart, end, mapsize); return mapsize; }

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pre-gitpre-git3633.64%330.00%
franck bui-huufranck bui-huu3330.84%110.00%
johannes weinerjohannes weiner2422.43%440.00%
mel gormanmel gorman98.41%110.00%
kamezawa hiroyukikamezawa hiroyuki54.67%110.00%
Total107100.00%10100.00%

/** * init_bootmem_node - register a node as boot memory * @pgdat: node to register * @freepfn: pfn where the bitmap for this node is to be placed * @startpfn: first pfn on the node * @endpfn: first pfn after the node * * Returns the number of bytes needed to hold the bitmap for this node. */
unsigned long __init init_bootmem_node(pg_data_t *pgdat, unsigned long freepfn, unsigned long startpfn, unsigned long endpfn) { return init_bootmem_core(pgdat->bdata, freepfn, startpfn, endpfn); }

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johannes weinerjohannes weiner2567.57%125.00%
pre-gitpre-git1129.73%250.00%
bernhard wallebernhard walle12.70%125.00%
Total37100.00%4100.00%

/** * init_bootmem - register boot memory * @start: pfn where the bitmap is to be placed * @pages: number of available physical pages * * Returns the number of bytes needed to hold the bitmap. */
unsigned long __init init_bootmem(unsigned long start, unsigned long pages) { max_low_pfn = pages; min_low_pfn = start; return init_bootmem_core(NODE_DATA(0)->bdata, start, 0, pages); }

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johannes weinerjohannes weiner3075.00%114.29%
pre-gitpre-git512.50%228.57%
yinghai luyinghai lu25.00%114.29%
franck bui-huufranck bui-huu12.50%114.29%
linus torvaldslinus torvalds12.50%114.29%
andrew mortonandrew morton12.50%114.29%
Total40100.00%7100.00%

/* * free_bootmem_late - free bootmem pages directly to page allocator * @addr: starting physical address of the range * @size: size of the range in bytes * * This is only useful when the bootmem allocator has already been torn * down, but we are still initializing the system. Pages are given directly * to the page allocator, no bootmem metadata is updated because it is gone. */
void __init free_bootmem_late(unsigned long physaddr, unsigned long size) { unsigned long cursor, end; kmemleak_free_part(__va(physaddr), size); cursor = PFN_UP(physaddr); end = PFN_DOWN(physaddr + size); for (; cursor < end; cursor++) { __free_pages_bootmem(pfn_to_page(cursor), cursor, 0); totalram_pages++; } }

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fujita tomonorifujita tomonori6791.78%133.33%
joonsoo kimjoonsoo kim45.48%133.33%
mel gormanmel gorman22.74%133.33%
Total73100.00%3100.00%


static unsigned long __init free_all_bootmem_core(bootmem_data_t *bdata) { struct page *page; unsigned long *map, start, end, pages, cur, count = 0; if (!bdata->node_bootmem_map) return 0; map = bdata->node_bootmem_map; start = bdata->node_min_pfn; end = bdata->node_low_pfn; bdebug("nid=%td start=%lx end=%lx\n", bdata - bootmem_node_data, start, end); while (start < end) { unsigned long idx, vec; unsigned shift; idx = start - bdata->node_min_pfn; shift = idx & (BITS_PER_LONG - 1); /* * vec holds at most BITS_PER_LONG map bits, * bit 0 corresponds to start. */ vec = ~map[idx / BITS_PER_LONG]; if (shift) { vec >>= shift; if (end - start >= BITS_PER_LONG) vec |= ~map[idx / BITS_PER_LONG + 1] << (BITS_PER_LONG - shift); } /* * If we have a properly aligned and fully unreserved * BITS_PER_LONG block of pages in front of us, free * it in one go. */ if (IS_ALIGNED(start, BITS_PER_LONG) && vec == ~0UL) { int order = ilog2(BITS_PER_LONG); __free_pages_bootmem(pfn_to_page(start), start, order); count += BITS_PER_LONG; start += BITS_PER_LONG; } else { cur = start; start = ALIGN(start + 1, BITS_PER_LONG); while (vec && cur != start) { if (vec & 1) { page = pfn_to_page(cur); __free_pages_bootmem(page, cur, 0); count++; } vec >>= 1; ++cur; } } } cur = bdata->node_min_pfn; page = virt_to_page(bdata->node_bootmem_map); pages = bdata->node_low_pfn - bdata->node_min_pfn; pages = bootmem_bootmap_pages(pages); count += pages; while (pages--) __free_pages_bootmem(page++, cur++, 0); bdata->node_bootmem_map = NULL; bdebug("nid=%td released=%lx\n", bdata - bootmem_node_data, count); return count; }

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yinghai luyinghai lu16950.30%214.29%
max filippovmax filippov6619.64%17.14%
johannes weinerjohannes weiner6419.05%642.86%
mel gormanmel gorman175.06%17.14%
daeseok youndaeseok youn92.68%17.14%
chris metcalfchris metcalf61.79%17.14%
gavin shangavin shan30.89%17.14%
pre-gitpre-git20.60%17.14%
Total336100.00%14100.00%

static int reset_managed_pages_done __initdata;
void reset_node_managed_pages(pg_data_t *pgdat) { struct zone *z; for (z = pgdat->node_zones; z < pgdat->node_zones + MAX_NR_ZONES; z++) z->managed_pages = 0; }

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jiang liujiang liu39100.00%2100.00%
Total39100.00%2100.00%


void __init reset_all_zones_managed_pages(void) { struct pglist_data *pgdat; if (reset_managed_pages_done) return; for_each_online_pgdat(pgdat) reset_node_managed_pages(pgdat); reset_managed_pages_done = 1; }

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jiang liujiang liu2683.87%150.00%
tang chentang chen516.13%150.00%
Total31100.00%2100.00%

/** * free_all_bootmem - release free pages to the buddy allocator * * Returns the number of pages actually released. */
unsigned long __init free_all_bootmem(void) { unsigned long total_pages = 0; bootmem_data_t *bdata; reset_all_zones_managed_pages(); list_for_each_entry(bdata, &bdata_list, list) total_pages += free_all_bootmem_core(bdata); totalram_pages += total_pages; return total_pages; }

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yinghai luyinghai lu2352.27%116.67%
johannes weinerjohannes weiner1329.55%116.67%
jiang liujiang liu715.91%350.00%
bernhard wallebernhard walle12.27%116.67%
Total44100.00%6100.00%


static void __init __free(bootmem_data_t *bdata, unsigned long sidx, unsigned long eidx) { unsigned long idx; bdebug("nid=%td start=%lx end=%lx\n", bdata - bootmem_node_data, sidx + bdata->node_min_pfn, eidx + bdata->node_min_pfn); if (WARN_ON(bdata->node_bootmem_map == NULL)) return; if (bdata->hint_idx > sidx) bdata->hint_idx = sidx; for (idx = sidx; idx < eidx; idx++) if (!test_and_clear_bit(idx, bdata->node_bootmem_map)) BUG(); }

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johannes weinerjohannes weiner8687.76%375.00%
chris metcalfchris metcalf1212.24%125.00%
Total98100.00%4100.00%


static int __init __reserve(bootmem_data_t *bdata, unsigned long sidx, unsigned long eidx, int flags) { unsigned long idx; int exclusive = flags & BOOTMEM_EXCLUSIVE; bdebug("nid=%td start=%lx end=%lx flags=%x\n", bdata - bootmem_node_data, sidx + bdata->node_min_pfn, eidx + bdata->node_min_pfn, flags); if (WARN_ON(bdata->node_bootmem_map == NULL)) return 0; for (idx = sidx; idx < eidx; idx++) if (test_and_set_bit(idx, bdata->node_bootmem_map)) { if (exclusive) { __free(bdata, sidx, idx); return -EBUSY; } bdebug("silent double reserve of PFN %lx\n", idx + bdata->node_min_pfn); } return 0; }

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johannes weinerjohannes weiner11589.15%266.67%
chris metcalfchris metcalf1410.85%133.33%
Total129100.00%3100.00%


static int __init mark_bootmem_node(bootmem_data_t *bdata, unsigned long start, unsigned long end, int reserve, int flags) { unsigned long sidx, eidx; bdebug("nid=%td start=%lx end=%lx reserve=%d flags=%x\n", bdata - bootmem_node_data, start, end, reserve, flags); BUG_ON(start < bdata->node_min_pfn); BUG_ON(end > bdata->node_low_pfn); sidx = start - bdata->node_min_pfn; eidx = end - bdata->node_min_pfn; if (reserve) return __reserve(bdata, sidx, eidx, flags); else __free(bdata, sidx, eidx); return 0; }

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johannes weinerjohannes weiner6255.86%541.67%
pre-gitpre-git2825.23%325.00%
yinghai luyinghai lu1311.71%18.33%
franck bui-huufranck bui-huu54.50%18.33%
andrew mortonandrew morton32.70%216.67%
Total111100.00%12100.00%


static int __init mark_bootmem(unsigned long start, unsigned long end, int reserve, int flags) { unsigned long pos; bootmem_data_t *bdata; pos = start; list_for_each_entry(bdata, &bdata_list, list) { int err; unsigned long max; if (pos < bdata->node_min_pfn || pos >= bdata->node_low_pfn) { BUG_ON(pos != start); continue; } max = min(bdata->node_low_pfn, end); err = mark_bootmem_node(bdata, pos, max, reserve, flags); if (reserve && err) { mark_bootmem(start, pos, 0, 0); return err; } if (max == end) return 0; pos = bdata->node_low_pfn; } BUG(); }

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johannes weinerjohannes weiner10977.86%325.00%
yinghai luyinghai lu107.14%216.67%
pre-gitpre-git96.43%216.67%
franck bui-huufranck bui-huu53.57%18.33%
yasunori gotoyasunori goto42.86%18.33%
andrew mortonandrew morton21.43%216.67%
linus torvaldslinus torvalds10.71%18.33%
Total140100.00%12100.00%

/** * free_bootmem_node - mark a page range as usable * @pgdat: node the range resides on * @physaddr: starting address of the range * @size: size of the range in bytes * * Partial pages will be considered reserved and left as they are. * * The range must reside completely on the specified node. */
void __init free_bootmem_node(pg_data_t *pgdat, unsigned long physaddr, unsigned long size) { unsigned long start, end; kmemleak_free_part(__va(physaddr), size); start = PFN_UP(physaddr); end = PFN_DOWN(physaddr + size); mark_bootmem_node(pgdat->bdata, start, end, 0, 0); }

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johannes weinerjohannes weiner5076.92%233.33%
catalin marinascatalin marinas1015.38%116.67%
andrew mortonandrew morton23.08%116.67%
yinghai luyinghai lu23.08%116.67%
linus torvaldslinus torvalds11.54%116.67%
Total65100.00%6100.00%

/** * free_bootmem - mark a page range as usable * @addr: starting physical address of the range * @size: size of the range in bytes * * Partial pages will be considered reserved and left as they are. * * The range must be contiguous but may span node boundaries. */
void __init free_bootmem(unsigned long physaddr, unsigned long size) { unsigned long start, end; kmemleak_free_part(__va(physaddr), size); start = PFN_UP(physaddr); end = PFN_DOWN(physaddr + size); mark_bootmem(start, end, 0, 0); }

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johannes weinerjohannes weiner4070.18%342.86%
catalin marinascatalin marinas915.79%114.29%
joonsoo kimjoonsoo kim47.02%114.29%
pre-gitpre-git47.02%228.57%
Total57100.00%7100.00%

/** * reserve_bootmem_node - mark a page range as reserved * @pgdat: node the range resides on * @physaddr: starting address of the range * @size: size of the range in bytes * @flags: reservation flags (see linux/bootmem.h) * * Partial pages will be reserved. * * The range must reside completely on the specified node. */
int __init reserve_bootmem_node(pg_data_t *pgdat, unsigned long physaddr, unsigned long size, int flags) { unsigned long start, end; start = PFN_DOWN(physaddr); end = PFN_UP(physaddr + size); return mark_bootmem_node(pgdat->bdata, start, end, 1, flags); }

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johannes weinerjohannes weiner5186.44%233.33%
andrew mortonandrew morton46.78%233.33%
pre-gitpre-git35.08%116.67%
yinghai luyinghai lu11.69%116.67%
Total59100.00%6100.00%

/** * reserve_bootmem - mark a page range as reserved * @addr: starting address of the range * @size: size of the range in bytes * @flags: reservation flags (see linux/bootmem.h) * * Partial pages will be reserved. * * The range must be contiguous but may span node boundaries. */
int __init reserve_bootmem(unsigned long addr, unsigned long size, int flags) { unsigned long start, end; start = PFN_DOWN(addr); end = PFN_UP(addr + size); return mark_bootmem(start, end, 1, flags); }

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johannes weinerjohannes weiner4180.39%228.57%
andrew mortonandrew morton611.76%228.57%
pre-gitpre-git35.88%228.57%
linus torvaldslinus torvalds11.96%114.29%
Total51100.00%7100.00%


static unsigned long __init align_idx(struct bootmem_data *bdata, unsigned long idx, unsigned long step) { unsigned long base = bdata->node_min_pfn; /* * Align the index with respect to the node start so that the * combination of both satisfies the requested alignment. */ return ALIGN(base + idx, step) - base; }

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johannes weinerjohannes weiner4197.62%150.00%
jan beulichjan beulich12.38%150.00%
Total42100.00%2100.00%


static unsigned long __init align_off(struct bootmem_data *bdata, unsigned long off, unsigned long align) { unsigned long base = PFN_PHYS(bdata->node_min_pfn); /* Same as align_idx for byte offsets */ return ALIGN(base + off, align) - base; }

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johannes weinerjohannes weiner4497.78%150.00%
jan beulichjan beulich12.22%150.00%
Total45100.00%2100.00%


static void * __init alloc_bootmem_bdata(struct bootmem_data *bdata, unsigned long size, unsigned long align, unsigned long goal, unsigned long limit) { unsigned long fallback = 0; unsigned long min, max, start, sidx, midx, step; bdebug("nid=%td size=%lx [%lu pages] align=%lx goal=%lx limit=%lx\n", bdata - bootmem_node_data, size, PAGE_ALIGN(size) >> PAGE_SHIFT, align, goal, limit); BUG_ON(!size); BUG_ON(align & (align - 1)); BUG_ON(limit && goal + size > limit); if (!bdata->node_bootmem_map) return NULL; min = bdata->node_min_pfn; max = bdata->node_low_pfn; goal >>= PAGE_SHIFT; limit >>= PAGE_SHIFT; if (limit && max > limit) max = limit; if (max <= min) return NULL; step = max(align >> PAGE_SHIFT, 1UL); if (goal && min < goal && goal < max) start = ALIGN(goal, step); else start = ALIGN(min, step); sidx = start - bdata->node_min_pfn; midx = max - bdata->node_min_pfn; if (bdata->hint_idx > sidx) { /* * Handle the valid case of sidx being zero and still * catch the fallback below. */ fallback = sidx + 1; sidx = align_idx(bdata, bdata->hint_idx, step); } while (1) { int merge; void *region; unsigned long eidx, i, start_off, end_off; find_block: sidx = find_next_zero_bit(bdata->node_bootmem_map, midx, sidx); sidx = align_idx(bdata, sidx, step); eidx = sidx + PFN_UP(size); if (sidx >= midx || eidx > midx) break; for (i = sidx; i < eidx; i++) if (test_bit(i, bdata->node_bootmem_map)) { sidx = align_idx(bdata, i, step); if (sidx == i) sidx += step; goto find_block; } if (bdata->last_end_off & (PAGE_SIZE - 1) && PFN_DOWN(bdata->last_end_off) + 1 == sidx) start_off = align_off(bdata, bdata->last_end_off, align); else start_off = PFN_PHYS(sidx); merge = PFN_DOWN(start_off) < sidx; end_off = start_off + size; bdata->last_end_off = end_off; bdata->hint_idx = PFN_UP(end_off); /* * Reserve the area now: */ if (__reserve(bdata, PFN_DOWN(start_off) + merge, PFN_UP(end_off), BOOTMEM_EXCLUSIVE)) BUG(); region = phys_to_virt(PFN_PHYS(bdata->node_min_pfn) + start_off); memset(region, 0, size); /* * The min_count is set to 0 so that bootmem allocated blocks * are never reported as leaks. */ kmemleak_alloc(region, size, 0, 0); return region; } if (fallback) { sidx = align_idx(bdata, fallback - 1, step); fallback = 0; goto find_block; } return NULL; }

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johannes weinerjohannes weiner41979.81%936.00%
pre-gitpre-git529.90%312.00%
yinghai luyinghai lu142.67%312.00%
catalin marinascatalin marinas122.29%28.00%
andi kleenandi kleen81.52%14.00%
mikulas patockamikulas patocka61.14%14.00%
josh aasjosh aas50.95%14.00%
andy whitcroftandy whitcroft30.57%14.00%
linus torvaldslinus torvalds20.38%14.00%
andrew mortonandrew morton20.38%14.00%
nick wilsonnick wilson10.19%14.00%
franck bui-huufranck bui-huu10.19%14.00%
Total525100.00%25100.00%


static void * __init alloc_bootmem_core(unsigned long size, unsigned long align, unsigned long goal, unsigned long limit) { bootmem_data_t *bdata; void *region; if (WARN_ON_ONCE(slab_is_available())) return kzalloc(size, GFP_NOWAIT); list_for_each_entry(bdata, &bdata_list, list) { if (goal && bdata->node_low_pfn <= PFN_DOWN(goal)) continue; if (limit && bdata->node_min_pfn >= PFN_DOWN(limit)) break; region = alloc_bootmem_bdata(bdata, size, align, goal, limit); if (region) return region; } return NULL; }

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johannes weinerjohannes weiner3733.33%430.77%
tejun heotejun heo2219.82%17.69%
pekka j enbergpekka j enberg1614.41%17.69%
pre-gitpre-git1311.71%215.38%
joonsoo kimjoonsoo kim98.11%17.69%
kamezawa hiroyukikamezawa hiroyuki65.41%17.69%
franck bui-huufranck bui-huu54.50%17.69%
andrew mortonandrew morton21.80%17.69%
yasunori gotoyasunori goto10.90%17.69%
Total111100.00%13100.00%


static void * __init ___alloc_bootmem_nopanic(unsigned long size, unsigned long align, unsigned long goal, unsigned long limit) { void *ptr; restart: ptr = alloc_bootmem_core(size, align, goal, limit); if (ptr) return ptr; if (goal) { goal = 0; goto restart; } return NULL; }

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PersonTokensPropCommitsCommitProp
johannes weinerjohannes weiner6293.94%266.67%
andi kleenandi kleen46.06%133.33%
Total66100.00%3100.00%

/** * __alloc_bootmem_nopanic - allocate boot memory without panicking * @size: size of the request in bytes * @align: alignment of the region * @goal: preferred starting address of the region * * The goal is dropped if it can not be satisfied and the allocation will * fall back to memory below @goal. * * Allocation may happen on any node in the system. * * Returns NULL on failure. */
void * __init __alloc_bootmem_nopanic(unsigned long size, unsigned long align, unsigned long goal) { unsigned long limit = 0; return ___alloc_bootmem_nopanic(size, align, goal, limit); }

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andi kleenandi kleen1745.95%133.33%
johannes weinerjohannes weiner1335.14%133.33%
yinghai luyinghai lu718.92%133.33%
Total37100.00%3100.00%


static void * __init ___alloc_bootmem(unsigned long size, unsigned long align, unsigned long goal, unsigned long limit) { void *mem = ___alloc_bootmem_nopanic(size, align, goal, limit); if (mem) return mem; /* * Whoops, we cannot satisfy the allocation request. */ pr_alert("bootmem alloc of %lu bytes failed!\n", size); panic("Out of memory"); return NULL; }

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johannes weinerjohannes weiner2641.94%116.67%
andi kleenandi kleen1930.65%116.67%
linus torvaldslinus torvalds1016.13%116.67%
pre-gitpre-git69.68%233.33%
joe perchesjoe perches11.61%116.67%
Total62100.00%6100.00%

/** * __alloc_bootmem - allocate boot memory * @size: size of the request in bytes * @align: alignment of the region * @goal: preferred starting address of the region * * The goal is dropped if it can not be satisfied and the allocation will * fall back to memory below @goal. * * Allocation may happen on any node in the system. * * The function panics if the request can not be satisfied. */
void * __init __alloc_bootmem(unsigned long size, unsigned long align, unsigned long goal) { unsigned long limit = 0; return ___alloc_bootmem(size, align, goal, limit); }

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johannes weinerjohannes weiner3081.08%150.00%
yinghai luyinghai lu718.92%150.00%
Total37100.00%2100.00%


void * __init ___alloc_bootmem_node_nopanic(pg_data_t *pgdat, unsigned long size, unsigned long align, unsigned long goal, unsigned long limit) { void *ptr; if (WARN_ON_ONCE(slab_is_available())) return kzalloc(size, GFP_NOWAIT); again: /* do not panic in alloc_bootmem_bdata() */ if (limit && goal + size > limit) limit = 0; ptr = alloc_bootmem_bdata(pgdat->bdata, size, align, goal, limit); if (ptr) return ptr; ptr = alloc_bootmem_core(size, align, goal, limit); if (ptr) return ptr; if (goal) { goal = 0; goto again; } return NULL; }

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yinghai luyinghai lu7258.06%222.22%
johannes weinerjohannes weiner3427.42%444.44%
joonsoo kimjoonsoo kim1310.48%111.11%
pre-gitpre-git54.03%222.22%
Total124100.00%9100.00%


void * __init __alloc_bootmem_node_nopanic(pg_data_t *pgdat, unsigned long size, unsigned long align, unsigned long goal) { if (WARN_ON_ONCE(slab_is_available())) return kzalloc_node(size, GFP_NOWAIT, pgdat->node_id); return ___alloc_bootmem_node_nopanic(pgdat, size, align, goal, 0); }

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johannes weinerjohannes weiner57100.00%1100.00%
Total57100.00%1100.00%


void * __init ___alloc_bootmem_node(pg_data_t *pgdat, unsigned long size, unsigned long align, unsigned long goal, unsigned long limit) { void *ptr; ptr = ___alloc_bootmem_node_nopanic(pgdat, size