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Release 4.18 mm/mmzone.c

Directory: mm
// SPDX-License-Identifier: GPL-2.0
/*
 * linux/mm/mmzone.c
 *
 * management codes for pgdats, zones and page flags
 */


#include <linux/stddef.h>
#include <linux/mm.h>
#include <linux/mmzone.h>


struct pglist_data *first_online_pgdat(void) { return NODE_DATA(first_online_node); }

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PersonTokensPropCommitsCommitProp
Kamezawa Hiroyuki15100.00%1100.00%
Total15100.00%1100.00%


struct pglist_data *next_online_pgdat(struct pglist_data *pgdat) { int nid = next_online_node(pgdat->node_id); if (nid == MAX_NUMNODES) return NULL; return NODE_DATA(nid); }

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Kamezawa Hiroyuki37100.00%1100.00%
Total37100.00%1100.00%

/* * next_zone - helper magic for for_each_zone() */
struct zone *next_zone(struct zone *zone) { pg_data_t *pgdat = zone->zone_pgdat; if (zone < pgdat->node_zones + MAX_NR_ZONES - 1) zone++; else { pgdat = next_online_pgdat(pgdat); if (pgdat) zone = pgdat->node_zones; else zone = NULL; } return zone; }

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PersonTokensPropCommitsCommitProp
Kamezawa Hiroyuki63100.00%1100.00%
Total63100.00%1100.00%


static inline int zref_in_nodemask(struct zoneref *zref, nodemask_t *nodes) { #ifdef CONFIG_NUMA return node_isset(zonelist_node_idx(zref), *nodes); #else return 1; #endif /* CONFIG_NUMA */ }

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PersonTokensPropCommitsCommitProp
Mel Gorman39100.00%1100.00%
Total39100.00%1100.00%

/* Returns the next zone at or below highest_zoneidx in a zonelist */
struct zoneref *__next_zones_zonelist(struct zoneref *z, enum zone_type highest_zoneidx, nodemask_t *nodes) { /* * Find the next suitable zone to use for the allocation. * Only filter based on nodemask if it's set */ if (unlikely(nodes == NULL)) while (zonelist_zone_idx(z) > highest_zoneidx) z++; else while (zonelist_zone_idx(z) > highest_zoneidx || (z->zone && !zref_in_nodemask(z, nodes))) z++; return z; }

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PersonTokensPropCommitsCommitProp
Mel Gorman7198.61%266.67%
Steven Rostedt11.39%133.33%
Total72100.00%3100.00%

#ifdef CONFIG_ARCH_HAS_HOLES_MEMORYMODEL
bool memmap_valid_within(unsigned long pfn, struct page *page, struct zone *zone) { if (page_to_pfn(page) != pfn) return false; if (page_zone(page) != zone) return false; return true; }

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PersonTokensPropCommitsCommitProp
Mel Gorman4291.30%150.00%
Yaowei Bai48.70%150.00%
Total46100.00%2100.00%

#endif /* CONFIG_ARCH_HAS_HOLES_MEMORYMODEL */
void lruvec_init(struct lruvec *lruvec) { enum lru_list lru; memset(lruvec, 0, sizeof(struct lruvec)); for_each_lru(lru) INIT_LIST_HEAD(&lruvec->lists[lru]); }

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Konstantin Khlebnikov42100.00%1100.00%
Total42100.00%1100.00%

#if defined(CONFIG_NUMA_BALANCING) && !defined(LAST_CPUPID_NOT_IN_PAGE_FLAGS)
int page_cpupid_xchg_last(struct page *page, int cpupid) { unsigned long old_flags, flags; int last_cpupid; do { old_flags = flags = page->flags; last_cpupid = page_cpupid_last(page); flags &= ~(LAST_CPUPID_MASK << LAST_CPUPID_PGSHIFT); flags |= (cpupid & LAST_CPUPID_MASK) << LAST_CPUPID_PGSHIFT; } while (unlikely(cmpxchg(&page->flags, old_flags, flags) != old_flags)); return last_cpupid; }

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PersonTokensPropCommitsCommitProp
Mel Gorman7186.59%150.00%
Peter Zijlstra1113.41%150.00%
Total82100.00%2100.00%

#endif

Overall Contributors

PersonTokensPropCommitsCommitProp
Mel Gorman24757.58%440.00%
Kamezawa Hiroyuki12228.44%110.00%
Konstantin Khlebnikov429.79%110.00%
Peter Zijlstra122.80%110.00%
Yaowei Bai40.93%110.00%
Greg Kroah-Hartman10.23%110.00%
Steven Rostedt10.23%110.00%
Hugh Dickins0.00%00.00%
Total429100.00%10100.00%
Directory: mm
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