| /kernel/linux/linux-5.10/drivers/block/paride/ |
| D | pd.c | 233 int changed; /* Have we seen a disk change ? */
247 enum action (*func)(struct pd_unit *disk);
259 static inline int status_reg(struct pd_unit *disk) in status_reg() argument
261 return pi_read_regr(disk->pi, 1, 6); in status_reg()
264 static inline int read_reg(struct pd_unit *disk, int reg) in read_reg() argument
266 return pi_read_regr(disk->pi, 0, reg); in read_reg()
269 static inline void write_status(struct pd_unit *disk, int val) in write_status() argument
271 pi_write_regr(disk->pi, 1, 6, val); in write_status()
274 static inline void write_reg(struct pd_unit *disk, int reg, int val) in write_reg() argument
276 pi_write_regr(disk->pi, 0, reg, val); in write_reg()
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| /kernel/linux/linux-6.6/block/ |
| D | genhd.c | 59 void set_capacity(struct gendisk *disk, sector_t sectors) in set_capacity() argument
61 bdev_set_nr_sectors(disk->part0, sectors); in set_capacity()
66 * Set disk capacity and notify if the size is not currently zero and will not
69 bool set_capacity_and_notify(struct gendisk *disk, sector_t size) in set_capacity_and_notify() argument
71 sector_t capacity = get_capacity(disk); in set_capacity_and_notify()
74 set_capacity(disk, size); in set_capacity_and_notify()
82 !disk_live(disk) || in set_capacity_and_notify()
83 (disk->flags & GENHD_FL_HIDDEN)) in set_capacity_and_notify()
87 disk->disk_name, capacity, size); in set_capacity_and_notify()
95 kobject_uevent_env(&disk_to_dev(disk)->kobj, KOBJ_CHANGE, envp); in set_capacity_and_notify()
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| D | disk-events.c | 3 * Disk events - monitor disk events like media change and eject request.
12 struct gendisk *disk; /* the associated disk */ member
41 static unsigned long disk_events_poll_jiffies(struct gendisk *disk) in disk_events_poll_jiffies() argument
43 struct disk_events *ev = disk->ev; in disk_events_poll_jiffies()
52 else if (disk->event_flags & DISK_EVENT_FLAG_POLL) in disk_events_poll_jiffies()
59 * disk_block_events - block and flush disk event checking
60 * @disk: disk to block events for
73 void disk_block_events(struct gendisk *disk) in disk_block_events() argument
75 struct disk_events *ev = disk->ev; in disk_block_events()
93 cancel_delayed_work_sync(&disk->ev->dwork); in disk_block_events()
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| D | holder.c | 12 struct gendisk *disk) in bd_find_holder_disk() argument
16 list_for_each_entry(holder, &disk->slave_bdevs, list) in bd_find_holder_disk()
33 * bd_link_disk_holder - create symlinks between holding disk and slave bdev
35 * @disk: the holding disk
41 * - from "slaves" directory of the holder @disk to the claimed @bdev
42 * - from "holders" directory of the @bdev to the holder @disk
44 * For example, if /dev/dm-0 maps to /dev/sda and disk for dm-0 is
51 * ensure that both @bdev and @disk are valid during the creation and
60 int bd_link_disk_holder(struct block_device *bdev, struct gendisk *disk) in bd_link_disk_holder() argument
65 if (WARN_ON_ONCE(!disk->slave_dir)) in bd_link_disk_holder()
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| D | blk-zoned.c | 60 if (!rq->q->disk->seq_zones_wlock) in blk_req_needs_zone_write_lock()
71 if (test_and_set_bit(zno, rq->q->disk->seq_zones_wlock)) in blk_req_zone_write_trylock()
84 rq->q->disk->seq_zones_wlock))) in __blk_req_zone_write_lock()
95 if (rq->q->disk->seq_zones_wlock) in __blk_req_zone_write_unlock()
97 rq->q->disk->seq_zones_wlock)); in __blk_req_zone_write_unlock()
141 struct gendisk *disk = bdev->bd_disk; in blkdev_report_zones() local
142 sector_t capacity = get_capacity(disk); in blkdev_report_zones()
144 if (!bdev_is_zoned(bdev) || WARN_ON_ONCE(!disk->fops->report_zones)) in blkdev_report_zones()
150 return disk->fops->report_zones(disk, sector, nr_zones, cb, data); in blkdev_report_zones()
183 struct gendisk *disk = bdev->bd_disk; in blkdev_zone_reset_all_emulated() local
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| D | blk-ia-ranges.c | 104 * @disk: Target disk
106 * Register with sysfs a set of independent access ranges for @disk.
108 int disk_register_independent_access_ranges(struct gendisk *disk) in disk_register_independent_access_ranges() argument
110 struct blk_independent_access_ranges *iars = disk->ia_ranges; in disk_register_independent_access_ranges()
111 struct request_queue *q = disk->queue; in disk_register_independent_access_ranges()
126 &disk->queue_kobj, "%s", in disk_register_independent_access_ranges()
129 disk->ia_ranges = NULL; in disk_register_independent_access_ranges()
152 void disk_unregister_independent_access_ranges(struct gendisk *disk) in disk_unregister_independent_access_ranges() argument
154 struct request_queue *q = disk->queue; in disk_unregister_independent_access_ranges()
155 struct blk_independent_access_ranges *iars = disk->ia_ranges; in disk_unregister_independent_access_ranges()
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| /kernel/linux/linux-5.10/block/ |
| D | genhd.c | 43 static void disk_alloc_events(struct gendisk *disk);
44 static void disk_add_events(struct gendisk *disk);
45 static void disk_del_events(struct gendisk *disk);
46 static void disk_release_events(struct gendisk *disk);
49 * Set disk capacity and notify if the size is not currently
52 bool set_capacity_revalidate_and_notify(struct gendisk *disk, sector_t size, in set_capacity_revalidate_and_notify() argument
55 sector_t capacity = get_capacity(disk); in set_capacity_revalidate_and_notify()
57 set_capacity(disk, size); in set_capacity_revalidate_and_notify()
59 revalidate_disk_size(disk, true); in set_capacity_revalidate_and_notify()
64 kobject_uevent_env(&disk_to_dev(disk)->kobj, KOBJ_CHANGE, envp); in set_capacity_revalidate_and_notify()
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| /kernel/liteos_a/drivers/block/disk/src/ |
| D | disk.c | 32 #include "disk.h"
105 los_disk *disk = NULL; in los_alloc_diskid_byname() local
122 disk = get_disk(diskID); in los_alloc_diskid_byname()
123 if ((disk != NULL) && (disk->disk_status == STAT_UNUSED)) { in los_alloc_diskid_byname()
124 disk->disk_status = STAT_UNREADY; in los_alloc_diskid_byname()
131 if ((disk == NULL) || (diskID == SYS_MAX_DISK)) { in los_alloc_diskid_byname()
136 if (disk->disk_name != NULL) { in los_alloc_diskid_byname()
137 LOS_MemFree(m_aucSysMem0, disk->disk_name); in los_alloc_diskid_byname()
138 disk->disk_name = NULL; in los_alloc_diskid_byname()
141 disk->disk_name = LOS_MemAlloc(m_aucSysMem0, (nameLen + 1)); in los_alloc_diskid_byname()
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| /kernel/linux/linux-6.6/Documentation/admin-guide/ |
| D | devices.txt | 20 1 block RAM disk
21 0 = /dev/ram0 First RAM disk
22 1 = /dev/ram1 Second RAM disk
24 250 = /dev/initrd Initial RAM disk
27 /dev/initrd refers to a RAM disk which was preloaded
115 3 block First MFM, RLL and IDE hard disk/CD-ROM interface
116 0 = /dev/hda Master: whole disk (or CD-ROM)
117 64 = /dev/hdb Slave: whole disk (or CD-ROM)
119 For partitions, add to the whole disk device number:
120 0 = /dev/hd? Whole disk
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| /kernel/linux/linux-5.10/Documentation/admin-guide/ |
| D | devices.txt | 20 1 block RAM disk
21 0 = /dev/ram0 First RAM disk
22 1 = /dev/ram1 Second RAM disk
24 250 = /dev/initrd Initial RAM disk
27 /dev/initrd refers to a RAM disk which was preloaded
115 3 block First MFM, RLL and IDE hard disk/CD-ROM interface
116 0 = /dev/hda Master: whole disk (or CD-ROM)
117 64 = /dev/hdb Slave: whole disk (or CD-ROM)
119 For partitions, add to the whole disk device number:
120 0 = /dev/hd? Whole disk
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| /kernel/linux/linux-6.6/block/partitions/ |
| D | core.c | 17 * Probe partition formats with tables at disk address 0
32 * disk address 0xdc0. Since these may also have stale
129 state->disk = hd; in check_partition()
296 * Must be called either with open_mutex held, before a disk can be opened or
297 * after all disk users are gone.
299 static struct block_device *add_partition(struct gendisk *disk, int partno, in add_partition() argument
304 struct device *ddev = disk_to_dev(disk); in add_partition()
310 lockdep_assert_held(&disk->open_mutex); in add_partition()
319 switch (disk->queue->limits.zoned) { in add_partition()
322 disk->disk_name); in add_partition()
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| /kernel/liteos_a/drivers/block/disk/include/ |
| D | disk.h | 33 * @defgroup disk Disk
177 UINT32 disk_id : 8; /* physics disk number */
178 UINT32 disk_status : 2; /* status of disk */
183 OsBcache *bcache; /* cache of the disk, shared in all partitions */
185 UINT32 sector_size; /* disk sector size */
186 UINT64 sector_start; /* disk start sector */
187 UINT64 sector_count; /* disk sector number */
198 UINT32 disk_id : 8; /* physics disk number */
200 UINT32 part_no_disk : 8; /* partition number in the disk */
236 * @ingroup disk
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| /kernel/linux/linux-5.10/include/linux/ |
| D | genhd.h | 7 * Generic hard disk header file by
24 #define disk_to_dev(disk) (&(disk)->part0.__dev) argument
214 #define disk_to_cdi(disk) ((disk)->cdi) argument
216 #define disk_to_cdi(disk) NULL argument
230 static inline int disk_max_parts(struct gendisk *disk) in disk_max_parts() argument
232 if (disk->flags & GENHD_FL_EXT_DEVT) in disk_max_parts()
234 return disk->minors; in disk_max_parts()
237 static inline bool disk_part_scan_enabled(struct gendisk *disk) in disk_part_scan_enabled() argument
239 return disk_max_parts(disk) > 1 && in disk_part_scan_enabled()
240 !(disk->flags & GENHD_FL_NO_PART_SCAN); in disk_part_scan_enabled()
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| /kernel/linux/linux-5.10/Documentation/ABI/testing/ |
| D | sysfs-fs-f2fs | 1 What: /sys/fs/f2fs/<disk>/gc_max_sleep_time
7 What: /sys/fs/f2fs/<disk>/gc_min_sleep_time
13 What: /sys/fs/f2fs/<disk>/gc_no_gc_sleep_time
19 What: /sys/fs/f2fs/<disk>/gc_idle
31 What: /sys/fs/f2fs/<disk>/reclaim_segments
41 What: /sys/fs/f2fs/<disk>/main_blkaddr
47 What: /sys/fs/f2fs/<disk>/ipu_policy
65 What: /sys/fs/f2fs/<disk>/min_ipu_util
71 What: /sys/fs/f2fs/<disk>/min_fsync_blocks
77 What: /sys/fs/f2fs/<disk>/min_seq_blocks
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| D | sysfs-block | 1 What: /sys/block/<disk>/stat
5 The /sys/block/<disk>/stat files displays the I/O
6 statistics of disk <disk>. They contain 11 fields:
31 What: /sys/block/<disk>/<part>/stat
35 The /sys/block/<disk>/<part>/stat files display the
37 same as the above-written /sys/block/<disk>/stat
41 What: /sys/block/<disk>/integrity/format
49 What: /sys/block/<disk>/integrity/read_verify
58 What: /sys/block/<disk>/integrity/tag_size
66 What: /sys/block/<disk>/integrity/device_is_integrity_capable
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| D | sysfs-block-bcache | 1 What: /sys/block/<disk>/bcache/unregister
11 What: /sys/block/<disk>/bcache/clear_stats
17 What: /sys/block/<disk>/bcache/cache
24 What: /sys/block/<disk>/bcache/cache_hits
31 What: /sys/block/<disk>/bcache/cache_misses
37 What: /sys/block/<disk>/bcache/cache_hit_ratio
43 What: /sys/block/<disk>/bcache/sequential_cutoff
51 What: /sys/block/<disk>/bcache/bypassed
59 What: /sys/block/<disk>/bcache/writeback
68 What: /sys/block/<disk>/bcache/writeback_running
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| /kernel/linux/linux-6.6/Documentation/ABI/testing/ |
| D | sysfs-fs-f2fs | 1 What: /sys/fs/f2fs/<disk>/gc_max_sleep_time
7 What: /sys/fs/f2fs/<disk>/gc_min_sleep_time
13 What: /sys/fs/f2fs/<disk>/gc_no_gc_sleep_time
19 What: /sys/fs/f2fs/<disk>/gc_idle
31 What: /sys/fs/f2fs/<disk>/reclaim_segments
41 What: /sys/fs/f2fs/<disk>/main_blkaddr
46 What: /sys/fs/f2fs/<disk>/ipu_policy
72 What: /sys/fs/f2fs/<disk>/min_ipu_util
78 What: /sys/fs/f2fs/<disk>/min_fsync_blocks
84 What: /sys/fs/f2fs/<disk>/min_seq_blocks
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| D | sysfs-block-bcache | 1 What: /sys/block/<disk>/bcache/unregister
11 What: /sys/block/<disk>/bcache/clear_stats
17 What: /sys/block/<disk>/bcache/cache
24 What: /sys/block/<disk>/bcache/cache_hits
31 What: /sys/block/<disk>/bcache/cache_misses
37 What: /sys/block/<disk>/bcache/cache_hit_ratio
43 What: /sys/block/<disk>/bcache/sequential_cutoff
51 What: /sys/block/<disk>/bcache/bypassed
59 What: /sys/block/<disk>/bcache/writeback
68 What: /sys/block/<disk>/bcache/writeback_running
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| /kernel/linux/linux-6.6/Documentation/ABI/stable/ |
| D | sysfs-block | 1 What: /sys/block/<disk>/alignment_offset
10 offset from the disk's natural alignment.
13 What: /sys/block/<disk>/discard_alignment
25 What: /sys/block/<disk>/diskseq
29 The /sys/block/<disk>/diskseq files reports the disk
37 What: /sys/block/<disk>/inflight
49 This is related to /sys/block/<disk>/queue/nr_requests
53 What: /sys/block/<disk>/integrity/device_is_integrity_capable
61 What: /sys/block/<disk>/integrity/format
69 What: /sys/block/<disk>/integrity/protection_interval_bytes
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| /kernel/linux/linux-5.10/block/partitions/ |
| D | core.c | 17 * Probe partition formats with tables at disk address 0
32 * disk address 0xdc0. Since these may also have stale
287 struct gendisk *disk = part_to_disk(part); in hd_struct_free_work() local
290 * Release the disk reference acquired in delete_partition here. in hd_struct_free_work()
295 put_device(disk_to_dev(disk)); in hd_struct_free_work()
306 struct gendisk *disk = part_to_disk(part); in hd_struct_free() local
308 rcu_dereference_protected(disk->part_tbl, 1); in hd_struct_free()
324 * Must be called either with bd_mutex held, before a disk can be opened or
325 * after all disk users are gone.
329 struct gendisk *disk = part_to_disk(part); in delete_partition() local
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| /kernel/linux/linux-6.6/Documentation/admin-guide/blockdev/ |
| D | ramdisk.rst | 2 Using the RAM disk block device with Linux
10 4) An Example of Creating a Compressed RAM Disk
16 The RAM disk driver is a way to use main system memory as a block device. It
22 The RAM disk dynamically grows as more space is required. It does this by using
26 The RAM disk supports up to 16 RAM disks by default, and can be reconfigured
31 To use RAM disk support with your system, run './MAKEDEV ram' from the /dev
35 The new RAM disk also has the ability to load compressed RAM disk images,
37 rescue floppy disk.
48 This parameter tells the RAM disk driver to set up RAM disks of N k size. The
80 If you make a boot disk that has LILO, then for the above, you would use::
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| /kernel/linux/linux-5.10/Documentation/admin-guide/blockdev/ |
| D | ramdisk.rst | 2 Using the RAM disk block device with Linux
10 4) An Example of Creating a Compressed RAM Disk
16 The RAM disk driver is a way to use main system memory as a block device. It
22 The RAM disk dynamically grows as more space is required. It does this by using
26 The RAM disk supports up to 16 RAM disks by default, and can be reconfigured
31 To use RAM disk support with your system, run './MAKEDEV ram' from the /dev
35 The new RAM disk also has the ability to load compressed RAM disk images,
37 rescue floppy disk.
48 This parameter tells the RAM disk driver to set up RAM disks of N k size. The
80 If you make a boot disk that has LILO, then for the above, you would use::
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| /kernel/linux/linux-6.6/drivers/md/ |
| D | dm-zone.c | 25 struct gendisk *disk = md->disk; in dm_blk_do_report_zones() local
46 args.next_sector < get_capacity(disk)); in dm_blk_do_report_zones()
56 int dm_blk_report_zones(struct gendisk *disk, sector_t sector, in dm_blk_report_zones() argument
59 struct mapped_device *md = disk->private_data; in dm_blk_report_zones()
143 if (md->disk) { in dm_cleanup_zoned_dev()
144 bitmap_free(md->disk->conv_zones_bitmap); in dm_cleanup_zoned_dev()
145 md->disk->conv_zones_bitmap = NULL; in dm_cleanup_zoned_dev()
146 bitmap_free(md->disk->seq_zones_wlock); in dm_cleanup_zoned_dev()
147 md->disk->seq_zones_wlock = NULL; in dm_cleanup_zoned_dev()
181 struct gendisk *disk = md->disk; in dm_zone_revalidate_cb() local
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| /kernel/linux/linux-6.6/Documentation/driver-api/md/ |
| D | raid5-cache.rst | 5 Raid 4/5/6 could include an extra disk for data cache besides normal RAID
6 disks. The role of RAID disks isn't changed with the cache disk. The cache disk
19 In both modes, all writes to the array will hit cache disk first. This means
20 the cache disk must be fast and sustainable.
34 The write-through cache will cache all data on cache disk first. After the data
35 is safe on the cache disk, the data will be flushed onto RAID disks. The
40 filesystems) after the data is safe on RAID disks, so cache disk failure
41 doesn't cause data loss. Of course cache disk failure means the array is
44 In write-through mode, the cache disk isn't required to be big. Several
51 cached on cache disk. But the main goal of 'write-back' cache is to speed up
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| /kernel/linux/linux-5.10/Documentation/driver-api/md/ |
| D | raid5-cache.rst | 5 Raid 4/5/6 could include an extra disk for data cache besides normal RAID
6 disks. The role of RAID disks isn't changed with the cache disk. The cache disk
19 In both modes, all writes to the array will hit cache disk first. This means
20 the cache disk must be fast and sustainable.
34 The write-through cache will cache all data on cache disk first. After the data
35 is safe on the cache disk, the data will be flushed onto RAID disks. The
40 filesystems) after the data is safe on RAID disks, so cache disk failure
41 doesn't cause data loss. Of course cache disk failure means the array is
44 In write-through mode, the cache disk isn't required to be big. Several
51 cached on cache disk. But the main goal of 'write-back' cache is to speed up
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