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/linux/drivers/block/null_blk/
H A Dzoned.c25 struct nullb_zone *zone) in null_init_zone_lock() argument
28 spin_lock_init(&zone->spinlock); in null_init_zone_lock()
30 mutex_init(&zone->mutex); in null_init_zone_lock()
34 struct nullb_zone *zone) in null_lock_zone() argument
37 spin_lock_irq(&zone->spinlock); in null_lock_zone()
39 mutex_lock(&zone->mutex); in null_lock_zone()
43 struct nullb_zone *zone) in null_unlock_zone() argument
46 spin_unlock_irq(&zone->spinlock); in null_unlock_zone()
48 mutex_unlock(&zone->mutex); in null_unlock_zone()
55 struct nullb_zone *zone; in null_init_zoned_dev() local
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/linux/drivers/md/dm-vdo/
H A Dlogical-zone.c6 #include "logical-zone.h"
21 #include "physical-zone.h"
47 * initialize_zone() - Initialize a logical zone.
48 * @zones: The logical_zones to which this zone belongs.
55 struct logical_zone *zone = &zones->zones[zone_number]; in initialize_zone() local
58 result = vdo_int_map_create(VDO_LOCK_MAP_CAPACITY, &zone->lbn_operations); in initialize_zone()
63 zone->next = &zones->zones[zone_number + 1]; in initialize_zone()
65 vdo_initialize_completion(&zone->completion, vdo, in initialize_zone()
67 zone->zones = zones; in initialize_zone()
68 zone->zone_number = zone_number; in initialize_zone()
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H A Dblock-map.c23 #include "physical-zone.h"
60 struct block_map_zone *zone; member
98 struct block_map_zone *zone; member
121 * For adjusting VDO page cache statistic fields which are only mutated on the logical zone thread.
199 info->vio->completion.callback_thread_id = cache->zone->thread_id; in initialize_info()
247 VDO_ASSERT_LOG_ONLY((thread_id == cache->zone->thread_id), in assert_on_cache_thread()
249 function_name, cache->zone->thread_id, thread_id); in assert_on_cache_thread()
255 VDO_ASSERT_LOG_ONLY(!vdo_is_state_quiescent(&cache->zone->state), in assert_io_allowed()
622 static void check_for_drain_complete(struct block_map_zone *zone) in check_for_drain_complete() argument
624 if (vdo_is_state_draining(&zone->state) && in check_for_drain_complete()
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/linux/fs/pstore/
H A Dzone.c26 * struct psz_buffer - header of zone to flush to storage
31 * @data: zone data.
66 * @off: zone offset of storage
67 * @type: front-end type for this zone
68 * @name: front-end name for this zone
69 * @buffer: pointer to data buffer managed by this zone
72 * @should_recover: whether this zone should recover from storage
75 * zone structure in memory.
90 * struct psz_context - all about running state of pstore/zone
93 * @ppsz: pmsg storage zone
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/linux/fs/xfs/libxfs/
H A Dxfs_zones.c19 struct blk_zone *zone, in xfs_zone_validate_empty() argument
26 xfs_warn(mp, "empty zone %u has non-zero used counter (0x%x).", in xfs_zone_validate_empty()
37 struct blk_zone *zone, in xfs_zone_validate_wp() argument
42 xfs_rtblock_t wp_fsb = xfs_daddr_to_rtb(mp, zone->wp); in xfs_zone_validate_wp()
45 xfs_warn(mp, "zone %u has too large used counter (0x%x).", in xfs_zone_validate_wp()
51 xfs_warn(mp, "zone %u write pointer (0x%llx) outside of zone.", in xfs_zone_validate_wp()
58 xfs_warn(mp, "zone %u has invalid write pointer (0x%x).", in xfs_zone_validate_wp()
68 struct blk_zone *zone, in xfs_zone_validate_full() argument
75 xfs_warn(mp, "zone %u has too large used counter (0x%x).", in xfs_zone_validate_full()
86 struct blk_zone *zone, in xfs_zone_validate_seq() argument
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/linux/include/uapi/linux/
H A Dblkzoned.h25 * @BLK_ZONE_TYPE_CONVENTIONAL: The zone has no write pointer and can be writen
26 * randomly. Zone reset has no effect on the zone.
27 * @BLK_ZONE_TYPE_SEQWRITE_REQ: The zone must be written sequentially
28 * @BLK_ZONE_TYPE_SEQWRITE_PREF: The zone can be written non-sequentially
39 * enum blk_zone_cond - Condition [state] of a zone in a zoned device.
41 * @BLK_ZONE_COND_NOT_WP: The zone has no write pointer, it is conventional.
42 * @BLK_ZONE_COND_EMPTY: The zone is empty.
43 * @BLK_ZONE_COND_IMP_OPEN: The zone is open, but not explicitly opened.
45 * OPEN ZONE command.
46 * @BLK_ZONE_COND_CLOSED: The zone was [explicitly] closed after writing.
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/linux/Documentation/filesystems/
H A Dzonefs.rst4 ZoneFS - Zone filesystem for Zoned block devices
10 zonefs is a very simple file system exposing each zone of a zoned block device
24 by allowing SSTables to be stored in a zone file similarly to a regular file
26 of the higher level construct "one file is one zone" can help reducing the
34 space that is divided into zones. A zone is a group of consecutive LBAs and all
41 sequentially. Each sequential zone has a write pointer maintained by the
43 to the device. As a result of this write constraint, LBAs in a sequential zone
45 command (zone reset) before rewriting.
61 representing zones are grouped by zone type, which are themselves represented
62 by sub-directories. This file structure is built entirely using zone information
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/linux/block/
H A Dblk-zoned.c38 * Per-zone write plug.
40 * @ref: Zone write plug reference counter. A zone write plug reference is
46 * reference is dropped whenever the zone of the zone write plug is reset,
47 * finished and when the zone becomes full (last write BIO to the zone
51 * @zone_no: The number of the zone the plug is managing.
52 * @wp_offset: The zone write pointer location relative to the start of the zone
56 * @rcu_head: RCU head to free zone write plugs with an RCU grace period.
73 * Zone write plug flags bits:
74 * - BLK_ZONE_WPLUG_PLUGGED: Indicates that the zone write plug is plugged,
76 * being executed or the zone write plug bio list is not empty.
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/linux/mm/
H A Dpage_alloc.c13 * Zone balancing, Kanoj Sarcar, SGI, Jan 2000
82 * shuffle the whole zone).
94 /* prevent >1 _updater_ of zone percpu pageset ->high and ->batch fields */
281 /* movable_zone is the "real" zone pages in ZONE_MOVABLE are taken from */
293 static bool cond_accept_memory(struct zone *zone, unsigned int order,
319 _deferred_grow_zone(struct zone *zone, unsigned int order) in _deferred_grow_zone() argument
321 return deferred_grow_zone(zone, order); in _deferred_grow_zone()
329 static inline bool _deferred_grow_zone(struct zone *zone, unsigned int order) in _deferred_grow_zone() argument
434 static int page_outside_zone_boundaries(struct zone *zone, struct page *page) in page_outside_zone_boundaries() argument
442 seq = zone_span_seqbegin(zone); in page_outside_zone_boundaries()
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H A Dshow_mem.c26 static inline void show_node(struct zone *zone) in show_node() argument
29 printk("Node %d ", zone_to_nid(zone)); in show_node()
38 struct zone *zone; in si_mem_available() local
40 for_each_zone(zone) in si_mem_available()
41 wmark_low += low_wmark_pages(zone); in si_mem_available()
98 struct zone *zone = &pgdat->node_zones[zone_type]; in si_meminfo_node() local
99 managed_pages += zone_managed_pages(zone); in si_meminfo_node()
100 if (is_highmem(zone)) { in si_meminfo_node()
101 managed_highpages += zone_managed_pages(zone); in si_meminfo_node()
102 free_highpages += zone_page_state(zone, NR_FREE_PAGES); in si_meminfo_node()
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H A Dvmstat.c39 /* zero numa counters within a zone */
40 static void zero_zone_numa_counters(struct zone *zone) in zero_zone_numa_counters() argument
45 atomic_long_set(&zone->vm_numa_event[item], 0); in zero_zone_numa_counters()
47 per_cpu_ptr(zone->per_cpu_zonestats, cpu)->vm_numa_event[item] in zero_zone_numa_counters()
56 struct zone *zone; in zero_zones_numa_counters() local
58 for_each_populated_zone(zone) in zero_zones_numa_counters()
59 zero_zone_numa_counters(zone); in zero_zones_numa_counters()
161 * Manage combined zone based / global counters
172 static void fold_vm_zone_numa_events(struct zone *zone) in fold_vm_zone_numa_events() argument
181 pzstats = per_cpu_ptr(zone->per_cpu_zonestats, cpu); in fold_vm_zone_numa_events()
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H A Dcompaction.c73 * the "fragmentation score" of a node/zone.
159 static void defer_compaction(struct zone *zone, int order) in defer_compaction() argument
161 zone->compact_considered = 0; in defer_compaction()
162 zone->compact_defer_shift++; in defer_compaction()
164 if (order < zone->compact_order_failed) in defer_compaction()
165 zone->compact_order_failed = order; in defer_compaction()
167 if (zone->compact_defer_shift > COMPACT_MAX_DEFER_SHIFT) in defer_compaction()
168 zone->compact_defer_shift = COMPACT_MAX_DEFER_SHIFT; in defer_compaction()
170 trace_mm_compaction_defer_compaction(zone, order); in defer_compaction()
174 static bool compaction_deferred(struct zone *zone, int order) in compaction_deferred() argument
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H A Dmm_init.c69 struct zone *zone; in mminit_verify_zonelist() local
76 /* Identify the zone and nodelist */ in mminit_verify_zonelist()
80 zone = &pgdat->node_zones[zoneid]; in mminit_verify_zonelist()
81 if (!populated_zone(zone)) in mminit_verify_zonelist()
87 zone->name); in mminit_verify_zonelist()
90 for_each_zone_zonelist(zone, z, zonelist, zoneid) in mminit_verify_zonelist()
91 pr_cont("%d:%s ", zone_to_nid(zone), zone->name); in mminit_verify_zonelist()
105 "Section %d Node %d Zone %d Lastcpupid %d Kasantag %d Gen %d Tier %d Flags %d\n", in mminit_verify_pageflags_layout()
115 "Section %d Node %d Zone %d Lastcpupid %d Kasantag %d\n", in mminit_verify_pageflags_layout()
122 "Section %lu Node %lu Zone %lu Lastcpupid %lu Kasantag %lu\n", in mminit_verify_pageflags_layout()
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H A Dmemory_hotplug.c158 * specifying a zone (MMOP_ONLINE)
160 * "contig-zones": keep zone contiguous
433 static unsigned long find_smallest_section_pfn(int nid, struct zone *zone, in find_smallest_section_pfn() argument
444 if (zone != page_zone(pfn_to_page(start_pfn))) in find_smallest_section_pfn()
454 static unsigned long find_biggest_section_pfn(int nid, struct zone *zone, in find_biggest_section_pfn() argument
469 if (zone != page_zone(pfn_to_page(pfn))) in find_biggest_section_pfn()
478 static void shrink_zone_span(struct zone *zone, unsigned long start_pfn, in shrink_zone_span() argument
482 int nid = zone_to_nid(zone); in shrink_zone_span()
484 if (zone->zone_start_pfn == start_pfn) { in shrink_zone_span()
486 * If the section is smallest section in the zone, it need in shrink_zone_span()
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/linux/tools/power/cpupower/lib/
H A Dpowercap.c124 static int sysfs_powercap_get64_val(struct powercap_zone *zone, in sysfs_powercap_get64_val() argument
132 strcat(file, zone->sys_name); in sysfs_powercap_get64_val()
146 int powercap_get_max_energy_range_uj(struct powercap_zone *zone, uint64_t *val) in powercap_get_max_energy_range_uj() argument
148 return sysfs_powercap_get64_val(zone, GET_MAX_ENERGY_RANGE_UJ, val); in powercap_get_max_energy_range_uj()
151 int powercap_get_energy_uj(struct powercap_zone *zone, uint64_t *val) in powercap_get_energy_uj() argument
153 return sysfs_powercap_get64_val(zone, GET_ENERGY_UJ, val); in powercap_get_energy_uj()
156 int powercap_get_max_power_range_uw(struct powercap_zone *zone, uint64_t *val) in powercap_get_max_power_range_uw() argument
158 return sysfs_powercap_get64_val(zone, GET_MAX_POWER_RANGE_UW, val); in powercap_get_max_power_range_uw()
161 int powercap_get_power_uw(struct powercap_zone *zone, uint64_t *val) in powercap_get_power_uw() argument
163 return sysfs_powercap_get64_val(zone, GET_POWER_UW, val); in powercap_get_power_uw()
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/linux/drivers/md/dm-vdo/indexer/
H A Dindex.c30 * get different numbers of records, some zones may fall behind others. Each time a zone fills up
32 * and also informs all other zones that it has closed the chapter. Each other zone will then close
34 * Once every zone has closed the chapter, the chapter writer will commit that chapter to storage.
36 * The last zone to close the chapter also removes the oldest chapter from the volume index.
38 * means that those zones will never ask the volume index about it. No zone is allowed to get more
39 * than one chapter ahead of any other. If a zone is so far ahead that it tries to close another
43 * request wants to add a chapter to the sparse cache, it sends a barrier message to each zone
44 * during the triage stage that acts as a rendezvous. Once every zone has reached the barrier and
45 * paused its operations, the cache membership is changed and each zone is then informed that it
48 * If a sparse cache has only one zone, it will not create a triage queue, but it still needs the
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/linux/fs/adfs/
H A Dmap.c14 * zone which contains a bitstream made up of variable sized fragments.
30 * large or fragmented files. The first map zone a fragment starts in
32 * from any zone on the disk.
63 * return the map bit offset of the fragment frag_id in the zone dm.
109 * Scan the free space map, for this zone, calculating the total
133 * exist in this zone. in scan_free_map()
159 static int scan_map(struct adfs_sb_info *asb, unsigned int zone, in scan_map() argument
166 dm = asb->s_map + zone; in scan_map()
167 zone = asb->s_map_size; in scan_map()
168 dm_end = asb->s_map + zone; in scan_map()
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/linux/include/linux/
H A Dmmzone.h145 NUMA_INTERLEAVE_HIT, /* interleaver preferred this zone */
720 * zone lock contention and keep cache-hot pages reusing.
809 * faulted, they come from the right zone right away. However, it is
813 * to a different zone. When migration fails - pinning fails.
834 * on different platforms may end up in a movable zone. ZERO_PAGE(0)
837 * memory to the MOVABLE zone, the vmemmap pages are also placed in
838 * such zone. Such pages cannot be really moved around as they are
860 struct zone { struct
863 /* zone watermarks, access with *_wmark_pages(zone) macros */
873 * wasting several GB of ram we must reserve some of the lower zone argument
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H A Dpowercap.h16 * controlled. Each power zone can have one or more constraints.
28 * limits. If disabled power zone can only be monitored
75 * struct powercap_zone_ops - Define power zone callbacks
83 * @set_enable: Enable/Disable power zone controls.
92 * This structure defines zone callbacks to be implemented by client drivers.
112 * struct powercap_zone- Defines instance of a power cap zone
114 * @name: Power zone name.
115 * @control_type_inst: Control type instance for this zone.
116 * @ops: Pointer to the zone operation structure.
121 * @private_data: Private data pointer if any for this zone.
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/linux/Documentation/admin-guide/device-mapper/
H A Ddm-zoned.rst54 Data in these zones may be directly mapped to the conventional zone, but
55 later moved to a sequential zone so that the conventional zone can be
65 1) The first block of the first conventional zone found contains the
73 indicates the zone number of the device storing the chunk of data. Each
74 mapping entry may also indicate if the zone number of a conventional
75 zone used to buffer random modification to the data zone.
80 data chunk, a block is always valid only in the data zone mapping the
81 chunk or in the buffer zone of the chunk.
83 For a logical chunk mapped to a conventional zone, all write operations
84 are processed by directly writing to the zone. If the mapping zone is a
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/linux/include/trace/events/
H A Dcompaction.h194 TP_PROTO(struct zone *zone,
198 TP_ARGS(zone, order, ret),
208 __entry->nid = zone_to_nid(zone);
209 __entry->idx = zone_idx(zone);
214 TP_printk("node=%d zone=%-8s order=%d ret=%s",
223 TP_PROTO(struct zone *zone,
227 TP_ARGS(zone, order, ret)
232 TP_PROTO(struct zone *zone,
236 TP_ARGS(zone, order, ret)
241 TP_PROTO(struct zone *zone, int order),
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/linux/drivers/md/
H A Ddm-zoned-reclaim.c57 * Align a sequential zone write pointer to chunk_block.
59 static int dmz_reclaim_align_wp(struct dmz_reclaim *zrc, struct dm_zone *zone, in dmz_reclaim_align_wp() argument
63 struct dmz_dev *dev = zone->dev; in dmz_reclaim_align_wp()
64 sector_t wp_block = zone->wp_block; in dmz_reclaim_align_wp()
80 dmz_start_sect(zmd, zone) + dmz_blk2sect(wp_block), in dmz_reclaim_align_wp()
84 "Align zone %u wp %llu to %llu (wp+%u) blocks failed %d", in dmz_reclaim_align_wp()
85 zone->id, (unsigned long long)wp_block, in dmz_reclaim_align_wp()
91 zone->wp_block = block; in dmz_reclaim_align_wp()
148 /* Get a valid region from the source zone */ in dmz_reclaim_copy()
155 * If we are writing in a sequential zone, we must make sure in dmz_reclaim_copy()
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/linux/include/net/netfilter/
H A Dnf_conntrack_zones.h12 return &ct->zone; in nf_ct_zone()
19 nf_ct_zone_init(struct nf_conntrack_zone *zone, u16 id, u8 dir, u8 flags) in nf_ct_zone_init() argument
21 zone->id = id; in nf_ct_zone_init()
22 zone->flags = flags; in nf_ct_zone_init()
23 zone->dir = dir; in nf_ct_zone_init()
25 return zone; in nf_ct_zone_init()
36 if (tmpl->zone.flags & NF_CT_FLAG_MARK) in nf_ct_zone_tmpl()
37 return nf_ct_zone_init(tmp, skb->mark, tmpl->zone.dir, 0); in nf_ct_zone_tmpl()
43 const struct nf_conntrack_zone *zone) in nf_ct_zone_add() argument
46 ct->zone = *zone; in nf_ct_zone_add()
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/linux/Documentation/ABI/testing/
H A Dsysfs-class-powercap25 This status affects every power zone using this "control_type.
27 What: /sys/class/powercap/<control type>/<power zone>
32 A power zone is a single or a collection of devices, which can
33 be independently monitored and controlled. A power zone sysfs
37 What: /sys/class/powercap/<control type>/<power zone>/<child power zone>
45 power zone for a whole CPU package, each CPU core in it can
46 be a child power zone.
48 What: /sys/class/powercap/.../<power zone>/name
53 Specifies the name of this power zone.
55 What: /sys/class/powercap/.../<power zone>/energy_uj
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/linux/drivers/net/ethernet/mellanox/mlx4/
H A Dalloc.c250 struct mlx4_zone_entry *zone = kmalloc(sizeof(*zone), GFP_KERNEL); in mlx4_zone_add_one() local
252 if (NULL == zone) in mlx4_zone_add_one()
255 zone->flags = flags; in mlx4_zone_add_one()
256 zone->bitmap = bitmap; in mlx4_zone_add_one()
257 zone->use_rr = (flags & MLX4_ZONE_USE_RR) ? MLX4_USE_RR : 0; in mlx4_zone_add_one()
258 zone->priority = priority; in mlx4_zone_add_one()
259 zone->offset = offset; in mlx4_zone_add_one()
263 zone->uid = zone_alloc->last_uid++; in mlx4_zone_add_one()
264 zone->allocator = zone_alloc; in mlx4_zone_add_one()
274 list_add_tail(&zone->prio_list, &it->prio_list); in mlx4_zone_add_one()
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