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/linux/block/
H A Dbadblocks.c554 sector_t sectors = bad->len; in front_merge() local
562 merged = min_t(sector_t, sectors, BB_END(p[prev]) - s); in front_merge()
564 merged = min_t(sector_t, sectors, BB_MAX_LEN - BB_LEN(p[prev])); in front_merge()
839 static bool _badblocks_set(struct badblocks *bb, sector_t s, sector_t sectors, in _badblocks_set() argument
852 if (sectors == 0) in _badblocks_set()
858 sector_t next = s + sectors; in _badblocks_set()
862 sectors = next - s; in _badblocks_set()
872 bad.len = sectors; in _badblocks_set()
923 BB_END(p[prev]) - s, sectors); in _badblocks_set()
954 sectors -= len; in _badblocks_set()
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/linux/Documentation/admin-guide/device-mapper/
H A Ddm-ebs.rst8 size. Its main purpose is to provide emulation of 512 byte sectors on
18 <dev path> <offset> <emulated sectors> [<underlying sectors>]
27 has to be a multiple of <emulated sectors>.
28 <emulated sectors>:
29 Number of sectors defining the logical block size to be emulated;
30 1, 2, 4, 8 sectors of 512 bytes supported.
34 <underlying sectors>:
35 Number of sectors defining the logical block size of <dev path>.
36 2^N supported, e.g. 8 = emulate 8 sectors of 512 bytes = 4KiB.
43 offset 1024 sectors with underlying devices block size automatically set:
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H A Ddm-integrity.rst68 dm-integrity won't read of write these sectors
77 not used and data sectors and integrity tags are written
96 data directly in the underlying device sectors.
111 The number of interleaved sectors. This values is rounded down to
120 The number of sectors in one metadata buffer. The value is rounded
183 512-byte sectors that corresponds to one bitmap bit.
202 copy sectors from one journal section to another journal section
206 key and also to disallow the attacker to move sectors from one
224 256 sectors of metadata per data area. With the default buffer_sectors of
231 2. provided data sectors - that is the number of sectors that the user
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H A Ddm-dust.rst4 This target emulates the behavior of bad sectors at arbitrary
11 drive with bad sectors).
23 sectors.
25 Normally, a drive that is encountering bad sectors will most likely
26 encounter more bad sectors, at an unknown time or location.
32 simulating a "failure" event where bad sectors start to appear.
53 First, find the size (in 512-byte sectors) of the device to be used::
114 kernel: device-mapper: dust: enabling read failures on bad sectors
299 be bad sectors that occur on the device in the future, in a different,
H A Dcache.rst69 sectors (32KB) and 2097152 sectors (1GB) and a multiple of 64 sectors (32KB).
127 For the time being, a message "migration_threshold <#sectors>"
128 can be used to set the maximum number of sectors being migrated,
129 the default being 2048 sectors (1MB).
189 block size cache unit size in sectors
248 sectors
252 in sectors
/linux/drivers/target/
H A Dtarget_core_sbc.c216 static inline u32 sbc_get_size(struct se_cmd *cmd, u32 sectors) in sbc_get_size() argument
218 return cmd->se_dev->dev_attrib.block_size * sectors; in sbc_get_size()
279 unsigned int sectors = sbc_get_write_same_sectors(cmd); in sbc_setup_write_same() local
288 if (sectors > cmd->se_dev->dev_attrib.max_write_same_len) { in sbc_setup_write_same()
290 sectors, cmd->se_dev->dev_attrib.max_write_same_len); in sbc_setup_write_same()
296 if (((cmd->t_task_lba + sectors) < cmd->t_task_lba) || in sbc_setup_write_same()
297 ((cmd->t_task_lba + sectors) > end_lba)) { in sbc_setup_write_same()
299 (unsigned long long)end_lba, cmd->t_task_lba, sectors); in sbc_setup_write_same()
333 ret = sbc_check_prot(dev, cmd, flags >> 5, sectors, true); in sbc_setup_write_same()
668 u32 sectors, bool is_write) in sbc_check_prot() argument
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/linux/Documentation/block/
H A Dstat.rst31 read sectors sectors number of sectors read
35 write sectors sectors number of sectors written
42 discard sectors sectors number of sectors discarded
67 read sectors, write sectors, discard_sectors
70 These values count the number of sectors read from, written to, or
71 discarded from this block device. The "sectors" in question are the
72 standard UNIX 512-byte sectors, not any device- or filesystem-specific
/linux/drivers/mtd/
H A Dssfdc.c22 unsigned char sectors; member
317 ssfdc->sectors = 32; in ssfdcr_add_mtd()
318 get_chs(mtd->size, NULL, &ssfdc->heads, &ssfdc->sectors); in ssfdcr_add_mtd()
320 ((long)ssfdc->sectors * (long)ssfdc->heads)); in ssfdcr_add_mtd()
323 ssfdc->cylinders, ssfdc->heads , ssfdc->sectors, in ssfdcr_add_mtd()
325 (long)ssfdc->sectors); in ssfdcr_add_mtd()
328 (long)ssfdc->sectors; in ssfdcr_add_mtd()
411 ssfdc->cylinders, ssfdc->heads, ssfdc->sectors); in ssfdcr_getgeo()
414 geo->sectors = ssfdc->sectors; in ssfdcr_getgeo()
H A Dinftlcore.c78 inftl->sectors = inftl->mbd.size / temp; in inftl_add_mtd()
80 inftl->sectors++; in inftl_add_mtd()
81 temp = inftl->cylinders * inftl->sectors; in inftl_add_mtd()
86 temp = inftl->heads * inftl->sectors; in inftl_add_mtd()
91 if (inftl->mbd.size != inftl->heads * inftl->cylinders * inftl->sectors) { in inftl_add_mtd()
100 inftl->cylinders, inftl->heads , inftl->sectors, in inftl_add_mtd()
102 (long)inftl->sectors ); in inftl_add_mtd()
922 geo->sectors = inftl->sectors; in inftl_getgeo()
/linux/Documentation/ABI/testing/
H A Dprocfs-diskstats15 6 sectors read
19 10 sectors written
32 17 sectors discarded
/linux/include/linux/
H A Dbadblocks.h51 int badblocks_check(struct badblocks *bb, sector_t s, sector_t sectors,
53 bool badblocks_set(struct badblocks *bb, sector_t s, sector_t sectors,
55 bool badblocks_clear(struct badblocks *bb, sector_t s, sector_t sectors);
/linux/drivers/scsi/
H A Dps3rom.c162 u32 sectors) in ps3rom_read_request() argument
167 __func__, __LINE__, sectors, start_sector); in ps3rom_read_request()
171 sectors, 0, dev->bounce_lpar, &dev->tag); in ps3rom_read_request()
183 u32 sectors) in ps3rom_write_request() argument
188 __func__, __LINE__, sectors, start_sector); in ps3rom_write_request()
194 sectors, 0, dev->bounce_lpar, &dev->tag); in ps3rom_write_request()
/linux/drivers/usb/storage/
H A Dsddr55.c190 unsigned short sectors) { in sddr55_read_data() argument
209 len = min_t(unsigned int, sectors, info->blocksize >> in sddr55_read_data()
217 while (sectors>0) { in sddr55_read_data()
227 pages = min_t(unsigned int, sectors << info->smallpageshift, in sddr55_read_data()
295 sectors -= pages >> info->smallpageshift; in sddr55_read_data()
309 unsigned short sectors) { in sddr55_write_data() argument
336 len = min_t(unsigned int, sectors, info->blocksize >> in sddr55_write_data()
344 while (sectors > 0) { in sddr55_write_data()
354 pages = min_t(unsigned int, sectors << info->smallpageshift, in sddr55_write_data()
509 sectors -= pages >> info->smallpageshift; in sddr55_write_data()
/linux/drivers/mtd/nand/
H A Decc-mtk.c66 u32 sectors; member
150 if (dec & ecc->sectors) { in mtk_ecc_irq()
156 ecc->sectors = 0; in mtk_ecc_irq()
213 if (config->sectors) in mtk_ecc_config()
214 ecc->sectors = 1 << (config->sectors - 1); in mtk_ecc_config()
221 int sectors) in mtk_ecc_get_stats() argument
229 for (i = 0; i < sectors; i++) { in mtk_ecc_get_stats()
/linux/drivers/mtd/spi-nor/
H A DKconfig14 bool "Use small 4096 B erase sectors"
17 Many flash memories support erasing small (4096 B) sectors. Depending
21 small sectors. On the other hand erasing should be faster when using
22 64 KiB block instead of 16 × 4 KiB sectors.
/linux/drivers/md/bcache/
H A Drequest.c117 unsigned int sectors = min(bio_sectors(bio), in bch_data_invalidate() local
123 bio->bi_iter.bi_sector += sectors; in bch_data_invalidate()
124 bio->bi_iter.bi_size -= sectors << 9; in bch_data_invalidate()
129 sectors)); in bch_data_invalidate()
367 unsigned int sectors, congested; in check_should_bypass() local
453 sectors = max(task->sequential_io, in check_should_bypass()
457 sectors >= dc->sequential_cutoff >> 9) { in check_should_bypass()
462 if (congested && sectors >= congested) { in check_should_bypass()
540 unsigned int sectors = KEY_INODE(k) == s->iop.inode in cache_lookup_fn() local
544 int ret = s->d->cache_miss(b, s, bio, sectors); in cache_lookup_fn()
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H A Dstats.c216 int sectors) in bch_mark_sectors_bypassed() argument
218 atomic_add(sectors, &dc->accounting.collector.sectors_bypassed); in bch_mark_sectors_bypassed()
219 atomic_add(sectors, &c->accounting.collector.sectors_bypassed); in bch_mark_sectors_bypassed()
/linux/arch/x86/boot/
H A Dmtools.conf.in11 file="@OBJ@/fdimage" cylinders=80 heads=2 sectors=18 filter
15 file="@OBJ@/fdimage" cylinders=80 heads=2 sectors=36 filter
/linux/drivers/md/
H A Ddm-stats.c26 unsigned long long sectors[2]; member
602 p->sectors[idx] += len; in dm_stat_for_entry()
731 shared->tmp.sectors[READ] = 0; in __dm_stat_init_temporary_percpu_totals()
732 shared->tmp.sectors[WRITE] = 0; in __dm_stat_init_temporary_percpu_totals()
749 shared->tmp.sectors[READ] += READ_ONCE(p->sectors[READ]); in __dm_stat_init_temporary_percpu_totals()
750 shared->tmp.sectors[WRITE] += READ_ONCE(p->sectors[WRITE]); in __dm_stat_init_temporary_percpu_totals()
783 p->sectors[READ] -= shared->tmp.sectors[READ]; in __dm_stat_clear()
784 p->sectors[WRITE] -= shared->tmp.sectors[WRITE]; in __dm_stat_clear()
901 shared->tmp.sectors[READ], in dm_stats_print()
905 shared->tmp.sectors[WRITE], in dm_stats_print()
/linux/Documentation/scsi/
H A Daha152x.rst125 SCSI uses block numbers to address blocks/sectors on a device.
130 The number of cylinders/heads/sectors is called geometry and is required
132 total capacity of disks in blocks (sectors).
146 namely the address space is limited to up to 255 heads, up to 63 sectors
150 to 64, the number of sectors to 32 and by calculating the number of
158 63 for sectors and then divides the capacity of the disk by 255*63
/linux/drivers/ps3/
H A Dps3stor_lib.c266 u64 start_sector, u64 sectors, int write) in ps3stor_read_write_sectors() argument
273 __func__, __LINE__, op, sectors, start_sector); in ps3stor_read_write_sectors()
277 start_sector, sectors, 0, lpar, in ps3stor_read_write_sectors()
280 start_sector, sectors, 0, lpar, in ps3stor_read_write_sectors()
/linux/drivers/scsi/aic7xxx/
H A Daiclib.h122 aic_sector_div(sector_t capacity, int heads, int sectors) in aic_sector_div() argument
125 sector_div(capacity, (heads * sectors)); in aic_sector_div()
/linux/drivers/mtd/nand/raw/
H A Dmtk_nand.c729 u32 sectors) in mtk_nfc_read_fdm() argument
738 for (i = 0; i < sectors; i++) { in mtk_nfc_read_fdm()
915 u32 sectors) in mtk_nfc_update_ecc_stats() argument
926 memset(buf, 0xff, sectors * chip->ecc.size); in mtk_nfc_update_ecc_stats()
927 for (i = 0; i < sectors; i++) in mtk_nfc_update_ecc_stats()
932 mtk_ecc_get_stats(nfc->ecc, &stats, sectors); in mtk_nfc_update_ecc_stats()
946 u32 column, sectors, start, end, reg; in mtk_nfc_read_subpage() local
957 sectors = end - start; in mtk_nfc_read_subpage()
960 len = sectors * chip->ecc.size + (raw ? sectors * spare : 0); in mtk_nfc_read_subpage()
980 nfc->ecc_cfg.sectors = sectors; in mtk_nfc_read_subpage()
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/linux/Documentation/filesystems/ext4/
H A Dblocks.rst7 sectors between 1KiB and 64KiB, and the number of sectors must be an
/linux/drivers/scsi/aacraid/
H A Dlinit.c309 param->sectors = 63; in aac_biosparm()
312 param->sectors = 32; in aac_biosparm()
316 param->sectors = 32; in aac_biosparm()
319 param->cylinders = cap_to_cyls(capacity, param->heads * param->sectors); in aac_biosparm()
343 param->sectors = 32; in aac_biosparm()
347 param->sectors = 32; in aac_biosparm()
351 param->sectors = 63; in aac_biosparm()
362 param->cylinders = cap_to_cyls(capacity, param->heads * param->sectors); in aac_biosparm()
363 if (num < 4 && end_sec == param->sectors) { in aac_biosparm()
366 param->heads, param->sectors, num)); in aac_biosparm()
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