| /Linux-v5.10/fs/pstore/ |
| D | zone.c | 26 * struct psz_head - 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-v5.10/drivers/block/ |
| D | null_blk_zoned.c | 28 pr_err("Zone size larger than device capacity\n"); in null_init_zoned_dev()
36 pr_err("null_blk: zone capacity (%lu MB) larger than zone size (%lu MB)\n", in null_init_zoned_dev()
51 * released to avoid scheduling in atomic context. To guarantee zone in null_init_zoned_dev()
74 pr_info("zone_max_active limit disabled, limit >= zone count\n"); in null_init_zoned_dev()
84 pr_info("zone_max_open limit disabled, limit >= zone count\n"); in null_init_zoned_dev()
88 struct blk_zone *zone = &dev->zones[i]; in null_init_zoned_dev() local
90 zone->start = sector; in null_init_zoned_dev()
91 zone->len = dev->zone_size_sects; in null_init_zoned_dev()
92 zone->capacity = zone->len; in null_init_zoned_dev()
93 zone->wp = zone->start + zone->len; in null_init_zoned_dev()
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| /Linux-v5.10/drivers/gpu/drm/ttm/ |
| D | ttm_memory.c | 81 struct ttm_mem_zone *zone = in ttm_mem_zone_kobj_release() local
84 pr_info("Zone %7s: Used memory at exit: %llu KiB\n", in ttm_mem_zone_kobj_release()
85 zone->name, (unsigned long long)zone->used_mem >> 10); in ttm_mem_zone_kobj_release()
86 kfree(zone); in ttm_mem_zone_kobj_release()
93 struct ttm_mem_zone *zone = in ttm_mem_zone_show() local
97 spin_lock(&zone->glob->lock); in ttm_mem_zone_show()
99 val = zone->zone_mem; in ttm_mem_zone_show()
101 val = zone->emer_mem; in ttm_mem_zone_show()
103 val = zone->max_mem; in ttm_mem_zone_show()
105 val = zone->swap_limit; in ttm_mem_zone_show()
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| /Linux-v5.10/include/uapi/linux/ |
| D | blkzoned.h | 25 * @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-v5.10/Documentation/filesystems/ |
| D | zonefs.rst | 4 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-v5.10/drivers/md/ |
| D | dm-zoned-metadata.c | 33 * blocks indicating zone block validity.
39 * the first conventional zone found on disk.
87 * and give the zone ID (dzone_id) mapping the chunk on disk.
88 * This zone may be sequential or random. If it is a sequential
89 * zone, a second zone (bzone_id) used as a write buffer may
90 * also be specified. This second zone will always be a randomly
91 * writeable zone.
137 struct dm_zone *zone; member
174 /* Zone information array */
192 /* Zone allocation management */
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| D | dm-zoned.h | 94 * Zone descriptor.
97 /* For listing the zone depending on its state */
100 /* Device containing this zone */
103 /* Zone type and state */
106 /* Zone activation reference count */
109 /* Zone id */
112 /* Zone write pointer block (relative to the zone start block) */
115 /* Zone weight (number of valid blocks in the zone) */
118 /* The chunk that the zone maps */
122 * For a sequential data zone, pointer to the random zone
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| D | dm-zoned-target.c | 17 * Zone BIO context.
21 struct dm_zone *zone; member
86 struct dm_zone *zone = bioctx->zone; in dmz_bio_endio() local
88 if (zone) { in dmz_bio_endio()
91 dmz_is_seq(zone)) in dmz_bio_endio()
92 set_bit(DMZ_SEQ_WRITE_ERR, &zone->flags); in dmz_bio_endio()
93 dmz_deactivate_zone(zone); in dmz_bio_endio()
116 static int dmz_submit_bio(struct dmz_target *dmz, struct dm_zone *zone, in dmz_submit_bio() argument
122 struct dmz_dev *dev = zone->dev; in dmz_submit_bio()
135 dmz_start_sect(dmz->metadata, zone) + dmz_blk2sect(chunk_block); in dmz_submit_bio()
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| D | dm-zoned-reclaim.c | 57 * 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-v5.10/include/linux/ |
| D | mmzone.h | 116 * zone->lock and the zone lru_lock are two of the hottest locks in the kernel.
118 * cachelines. There are very few zone structures in the machine, so space
135 NUMA_INTERLEAVE_HIT, /* interleaver preferred this zone */
448 struct zone { struct
451 /* zone watermarks, access with *_wmark_pages(zone) macros */
460 * wasting several GB of ram we must reserve some of the lower zone argument
486 * spanned_pages is the total pages spanned by the zone, including argument
490 * present_pages is physical pages existing within the zone, which
508 * It is a seqlock because it has to be read outside of zone->lock,
512 * The span_seq lock is declared along with zone->lock because it is
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| D | memory_hotplug.h | 11 struct zone;
48 /* Types for control the zone type of onlined and offlined memory */
52 /* Online the memory. Zone depends, see default_zone_for_pfn(). */
85 * Zone resizing functions
87 * Note: any attempt to resize a zone should has pgdat_resize_lock()
88 * zone_span_writelock() both held. This ensure the size of a zone
91 static inline unsigned zone_span_seqbegin(struct zone *zone) in zone_span_seqbegin() argument
93 return read_seqbegin(&zone->span_seqlock); in zone_span_seqbegin()
95 static inline int zone_span_seqretry(struct zone *zone, unsigned iv) in zone_span_seqretry() argument
97 return read_seqretry(&zone->span_seqlock, iv); in zone_span_seqretry()
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| D | vmstat.h | 138 * Zone and node-based page accounting with per cpu differentials.
145 static inline void zone_numa_state_add(long x, struct zone *zone, in zone_numa_state_add() argument
148 atomic_long_add(x, &zone->vm_numa_stat[item]); in zone_numa_state_add()
159 static inline unsigned long zone_numa_state_snapshot(struct zone *zone, in zone_numa_state_snapshot() argument
162 long x = atomic_long_read(&zone->vm_numa_stat[item]); in zone_numa_state_snapshot()
166 x += per_cpu_ptr(zone->pageset, cpu)->vm_numa_stat_diff[item]; in zone_numa_state_snapshot()
172 static inline void zone_page_state_add(long x, struct zone *zone, in zone_page_state_add() argument
175 atomic_long_add(x, &zone->vm_stat[item]); in zone_page_state_add()
214 static inline unsigned long zone_page_state(struct zone *zone, in zone_page_state() argument
217 long x = atomic_long_read(&zone->vm_stat[item]); in zone_page_state()
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| D | powercap.h | 16 * 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-v5.10/mm/ |
| D | page_alloc.c | 13 * Zone balancing, Kanoj Sarcar, SGI, Jan 2000
100 * shuffle the whole zone).
109 /* prevent >1 _updater_ of zone percpu pageset ->high and ->batch fields */
133 struct zone *zone; member
378 /* movable_zone is the "real" zone pages in ZONE_MOVABLE are taken from */
439 * prev_end_pfn static that contains the end of previous zone in defer_init()
583 static int page_outside_zone_boundaries(struct zone *zone, struct page *page) in page_outside_zone_boundaries() argument
591 seq = zone_span_seqbegin(zone); in page_outside_zone_boundaries()
592 start_pfn = zone->zone_start_pfn; in page_outside_zone_boundaries()
593 sp = zone->spanned_pages; in page_outside_zone_boundaries()
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| D | memory_hotplug.c | 306 * call this function after deciding the zone to which to
354 static unsigned long find_smallest_section_pfn(int nid, struct zone *zone, in find_smallest_section_pfn() argument
365 if (zone != page_zone(pfn_to_page(start_pfn))) in find_smallest_section_pfn()
375 static unsigned long find_biggest_section_pfn(int nid, struct zone *zone, in find_biggest_section_pfn() argument
390 if (zone != page_zone(pfn_to_page(pfn))) in find_biggest_section_pfn()
399 static void shrink_zone_span(struct zone *zone, unsigned long start_pfn, in shrink_zone_span() argument
403 int nid = zone_to_nid(zone); in shrink_zone_span()
405 zone_span_writelock(zone); in shrink_zone_span()
406 if (zone->zone_start_pfn == start_pfn) { in shrink_zone_span()
408 * If the section is smallest section in the zone, it need in shrink_zone_span()
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| D | vmstat.c | 39 /* 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_stat[item], 0); in zero_zone_numa_counters()
47 per_cpu_ptr(zone->pageset, cpu)->vm_numa_stat_diff[item] in zero_zone_numa_counters()
55 struct zone *zone; in zero_zones_numa_counters() local
57 for_each_populated_zone(zone) in zero_zones_numa_counters()
58 zero_zone_numa_counters(zone); in zero_zones_numa_counters()
159 * Manage combined zone based / global counters
172 int calculate_pressure_threshold(struct zone *zone) in calculate_pressure_threshold() argument
185 watermark_distance = low_wmark_pages(zone) - min_wmark_pages(zone); in calculate_pressure_threshold()
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| D | compaction.c | 61 * the "fragmentation score" of a node/zone.
160 void defer_compaction(struct zone *zone, int order) in defer_compaction() argument
162 zone->compact_considered = 0; in defer_compaction()
163 zone->compact_defer_shift++; in defer_compaction()
165 if (order < zone->compact_order_failed) in defer_compaction()
166 zone->compact_order_failed = order; in defer_compaction()
168 if (zone->compact_defer_shift > COMPACT_MAX_DEFER_SHIFT) in defer_compaction()
169 zone->compact_defer_shift = COMPACT_MAX_DEFER_SHIFT; in defer_compaction()
171 trace_mm_compaction_defer_compaction(zone, order); in defer_compaction()
175 bool compaction_deferred(struct zone *zone, int order) in compaction_deferred() argument
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| /Linux-v5.10/Documentation/driver-api/thermal/ |
| D | sysfs-api.rst | 15 The generic thermal sysfs provides a set of interfaces for thermal zone
19 This how-to focuses on enabling new thermal zone and cooling devices to
21 This solution is platform independent and any type of thermal zone devices
24 The main task of the thermal sysfs driver is to expose thermal zone attributes
27 inputs from thermal zone attributes (the current temperature and trip point
36 1.1 thermal zone device interface
48 This interface function adds a new thermal zone device (sensor) to
53 the thermal zone type.
55 the total number of trip points this thermal zone supports.
61 thermal zone device call-backs.
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| /Linux-v5.10/fs/btrfs/ |
| D | reada.c | 229 struct reada_zone *zone; in reada_find_zone() local
235 zone = NULL; in reada_find_zone()
237 ret = radix_tree_gang_lookup(&dev->reada_zones, (void **)&zone, in reada_find_zone()
239 if (ret == 1 && logical >= zone->start && logical <= zone->end) { in reada_find_zone()
240 kref_get(&zone->refcnt); in reada_find_zone()
242 return zone; in reada_find_zone()
255 zone = kzalloc(sizeof(*zone), GFP_KERNEL); in reada_find_zone()
256 if (!zone) in reada_find_zone()
261 kfree(zone); in reada_find_zone()
265 zone->start = start; in reada_find_zone()
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| /Linux-v5.10/fs/adfs/ |
| D | map.c | 14 * 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-v5.10/Documentation/admin-guide/device-mapper/ |
| D | dm-zoned.rst | 54 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-v5.10/include/net/netfilter/ |
| D | nf_conntrack_zones.h | 12 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-v5.10/drivers/thermal/tegra/ |
| D | tegra-bpmp-thermal.c | 35 struct tegra_bpmp_thermal_zone *zone = data; in tegra_bpmp_thermal_get_temp() local
43 req.get_temp.zone = zone->idx; in tegra_bpmp_thermal_get_temp()
52 err = tegra_bpmp_transfer(zone->tegra->bpmp, &msg); in tegra_bpmp_thermal_get_temp()
63 struct tegra_bpmp_thermal_zone *zone = data; in tegra_bpmp_thermal_set_trips() local
69 req.set_trip.zone = zone->idx; in tegra_bpmp_thermal_set_trips()
79 return tegra_bpmp_transfer(zone->tegra->bpmp, &msg); in tegra_bpmp_thermal_set_trips()
84 struct tegra_bpmp_thermal_zone *zone; in tz_device_update_work_fn() local
86 zone = container_of(work, struct tegra_bpmp_thermal_zone, in tz_device_update_work_fn()
89 thermal_zone_device_update(zone->tzd, THERMAL_TRIP_VIOLATED); in tz_device_update_work_fn()
109 if (tegra->zones[i]->idx != req->host_trip_reached.zone) in bpmp_mrq_thermal()
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| /Linux-v5.10/Documentation/ABI/testing/ |
| D | sysfs-class-powercap | 25 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-v5.10/drivers/net/ethernet/mellanox/mlx4/ |
| D | alloc.c | 250 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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