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/linux/Documentation/admin-guide/device-mapper/
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 <underyling 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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A Ddm-integrity.rst59 dm-integrity won't read of write these sectors
68 not used and data sectors and integrity tags are written
97 The number of interleaved sectors. This values is rounded down to
174 512-byte sectors that corresponds to one bitmap bit.
216 2. provided data sectors - that is the number of sectors that the user
223 * reserved sectors
231 * log2(interleave sectors)
234 * provided data sectors - the number of sectors that this target
246 * log2(sectors per block)
262 * mac (8-bytes), all the macs in 8 metadata sectors form a
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/linux/drivers/target/
A Dtarget_core_sbc.c721 u32 sectors, bool is_write) in sbc_check_prot() argument
826 u32 sectors = 0; in sbc_parse_cdb() local
973 if (!sectors) { in sbc_parse_cdb()
1001 sectors = cdb[13]; in sbc_parse_cdb()
1005 if (sectors > 1) { in sbc_parse_cdb()
1007 " than 1\n", sectors); in sbc_parse_cdb()
1019 cmd->t_task_nolb = sectors; in sbc_parse_cdb()
1073 if (!sectors) { in sbc_parse_cdb()
1087 if (!sectors) { in sbc_parse_cdb()
1372 left = sectors * dev->prot_length; in sbc_dif_copy_prot()
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/linux/drivers/md/
A Draid0.c68 sector_t curr_zone_end, sectors; in create_strip_zones() local
87 sectors = rdev1->sectors; in create_strip_zones()
89 rdev1->sectors = sectors * mddev->chunk_sectors; in create_strip_zones()
107 if (rdev2->sectors == rdev1->sectors) { in create_strip_zones()
213 if (!smallest || (rdev1->sectors < smallest->sectors)) in create_strip_zones()
254 if (!smallest || rdev->sectors < smallest->sectors) { in create_strip_zones()
263 sectors = (smallest->sectors - zone->dev_start) * c; in create_strip_zones()
268 curr_zone_end += sectors; in create_strip_zones()
349 WARN_ONCE(sectors || raid_disks, in raid0_size()
518 unsigned sectors; in raid0_make_request() local
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A Dmd-linear.c49 static sector_t linear_size(struct mddev *mddev, sector_t sectors, int raid_disks) in linear_size() argument
55 WARN_ONCE(sectors || raid_disks, in linear_size()
79 sector_t sectors; in linear_conf() local
89 sectors = rdev->sectors; in linear_conf()
90 sector_div(sectors, mddev->chunk_sectors); in linear_conf()
91 rdev->sectors = sectors * mddev->chunk_sectors; in linear_conf()
97 conf->array_sectors += rdev->sectors; in linear_conf()
117 conf->disks[0].end_sector = conf->disks[0].rdev->sectors; in linear_conf()
122 conf->disks[i].rdev->sectors; in linear_conf()
228 start_sector = tmp_dev->end_sector - tmp_dev->rdev->sectors; in linear_make_request()
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A Draid1.c577 len = sectors; in align_to_barrier_unit_end()
599 int sectors; in read_balance() local
617 sectors = r1_bio->sectors; in read_balance()
1998 int sectors = r1_bio->sectors; in fix_sync_read_error() local
2014 while(sectors) { in fix_sync_read_error()
2068 sectors -= s; in fix_sync_read_error()
2103 sectors -= s; in fix_sync_read_error()
2256 while(sectors) { in fix_read_error()
2343 sectors -= s; in fix_read_error()
2367 int sectors; in narrow_write_error() local
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A Draid10.c710 int sectors = r10_bio->sectors; in read_balance() local
1113 sectors); in regular_request_wait()
1370 sectors = r10_bio->sectors; in raid10_write_request()
1512 r10_bio->sectors = sectors; in __make_request()
2368 int sectors = r10_bio->sectors; in sync_request_write() local
2468 int sectors = r10_bio->sectors; in fix_recovery_read_error() local
2532 sectors -= s; in fix_recovery_read_error()
2647 int sectors = r10_bio->sectors; in fix_read_error() local
2848 int sectors; in narrow_write_error() local
3847 if (!sectors) in raid10_size()
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/linux/block/
A Dbadblocks.c68 sectors = target - s; in badblocks_check()
182 sectors = next - s; in badblocks_set()
219 if (e < s + sectors) in badblocks_set()
220 e = s + sectors; in badblocks_set()
232 sectors = e - s; in badblocks_set()
243 if (a <= s + sectors) { in badblocks_set()
245 if (e <= s + sectors) { in badblocks_set()
247 e = s + sectors; in badblocks_set()
260 sectors = e - s; in badblocks_set()
283 while (sectors) { in badblocks_set()
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A Dbounce.c218 int sectors = 0; in __blk_queue_bounce() local
222 sectors += from.bv_len >> 9; in __blk_queue_bounce()
229 if (sectors < bio_sectors(*bio_orig)) { in __blk_queue_bounce()
230 bio = bio_split(*bio_orig, sectors, GFP_NOIO, &bounce_bio_split); in __blk_queue_bounce()
/linux/Documentation/block/
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/scsi/
A Dscsicam.c181 unsigned long heads, sectors, cylinders, temp; in setsize() local
184 sectors = 62L; /* Maximize sectors per track */ in setsize()
186 temp = cylinders * sectors; /* Compute divisor for heads */ in setsize()
191 sectors = capacity / temp; /* Compute value for sectors per in setsize()
194 sectors++; /* Else, increment number of sectors */ in setsize()
195 temp = heads * sectors; /* Compute divisor for cylinders */ in setsize()
203 *secs = (unsigned int) sectors; in setsize()
A Dps3rom.c161 u32 sectors) in ps3rom_read_request() argument
166 __func__, __LINE__, sectors, start_sector); in ps3rom_read_request()
170 sectors, 0, dev->bounce_lpar, &dev->tag); in ps3rom_read_request()
182 u32 sectors) in ps3rom_write_request() argument
187 __func__, __LINE__, sectors, start_sector); in ps3rom_write_request()
193 sectors, 0, dev->bounce_lpar, &dev->tag); in ps3rom_write_request()
/linux/include/linux/
A Dblk-integrity.h90 unsigned int sectors) in bio_integrity_intervals() argument
92 return sectors >> (bi->interval_exp - 9); in bio_integrity_intervals()
96 unsigned int sectors) in bio_integrity_bytes() argument
98 return bio_integrity_intervals(bi, sectors) * bi->tuple_size; in bio_integrity_bytes()
163 unsigned int sectors) in bio_integrity_intervals() argument
169 unsigned int sectors) in bio_integrity_bytes() argument
A Dbadblocks.h44 int badblocks_check(struct badblocks *bb, sector_t s, int sectors,
46 int badblocks_set(struct badblocks *bb, sector_t s, int sectors,
48 int badblocks_clear(struct badblocks *bb, sector_t s, int sectors);
/linux/drivers/mtd/
A Dssfdc.c23 unsigned char sectors; member
318 ssfdc->sectors = 32; in ssfdcr_add_mtd()
319 get_chs(mtd->size, NULL, &ssfdc->heads, &ssfdc->sectors); in ssfdcr_add_mtd()
321 ((long)ssfdc->sectors * (long)ssfdc->heads)); in ssfdcr_add_mtd()
324 ssfdc->cylinders, ssfdc->heads , ssfdc->sectors, in ssfdcr_add_mtd()
326 (long)ssfdc->sectors); in ssfdcr_add_mtd()
329 (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()
A Dnftlcore.c71 nftl->sectors = nftl->mbd.size / temp; in nftl_add_mtd()
73 nftl->sectors++; in nftl_add_mtd()
74 temp = nftl->cylinders * nftl->sectors; in nftl_add_mtd()
79 temp = nftl->heads * nftl->sectors; in nftl_add_mtd()
84 if (nftl->mbd.size != nftl->heads * nftl->cylinders * nftl->sectors) { in nftl_add_mtd()
93 nftl->cylinders, nftl->heads , nftl->sectors, in nftl_add_mtd()
95 (long)nftl->sectors ); in nftl_add_mtd()
771 geo->sectors = nftl->sectors; in nftl_getgeo()
/linux/drivers/usb/storage/
A Ddatafab.c60 unsigned long sectors; /* total sector count */ member
138 u32 sectors) in datafab_read_data() argument
153 if (sectors > 0x0FFFFFFF) in datafab_read_data()
162 totallen = sectors * info->ssize; in datafab_read_data()
221 u32 sectors) in datafab_write_data() argument
237 if (sectors > 0x0FFFFFFF) in datafab_write_data()
246 totallen = sectors * info->ssize; in datafab_write_data()
420 info->sectors = ((u32)(reply[117]) << 24) | in datafab_id_device()
582 info->sectors, info->ssize); in datafab_transport()
586 ((__be32 *) ptr)[0] = cpu_to_be32(info->sectors - 1); in datafab_transport()
A Djumpshot.c96 unsigned long sectors; /* total sector count */ member
156 u32 sectors) in jumpshot_read_data() argument
174 totallen = sectors * info->ssize; in jumpshot_read_data()
233 u32 sectors) in jumpshot_write_data() argument
251 totallen = sectors * info->ssize; in jumpshot_write_data()
354 info->sectors = ((u32)(reply[117]) << 24) | in jumpshot_id_device()
513 info->sectors, info->ssize); in jumpshot_transport()
517 ((__be32 *) ptr)[0] = cpu_to_be32(info->sectors - 1); in jumpshot_transport()
A Dsddr55.c190 unsigned short sectors) { in sddr55_read_data() argument
209 len = min((unsigned int) sectors, (unsigned int) info->blocksize >> in sddr55_read_data()
217 while (sectors>0) { in sddr55_read_data()
227 pages = min((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((unsigned int) sectors, (unsigned int) info->blocksize >> in sddr55_write_data()
344 while (sectors > 0) { in sddr55_write_data()
354 pages = min((unsigned int) sectors << info->smallpageshift, in sddr55_write_data()
503 sectors -= pages >> info->smallpageshift; in sddr55_write_data()
/linux/fs/hfsplus/
A Dbtree.c76 u64 sectors, int file_id) in hfsplus_calc_btree_clump_size() argument
100 if (sectors < 0x200000) { in hfsplus_calc_btree_clump_size()
101 clump_size = sectors << 2; /* 0.8 % */ in hfsplus_calc_btree_clump_size()
106 for (i = 0, sectors = sectors >> 22; in hfsplus_calc_btree_clump_size()
107 sectors && (i < CLUMP_ENTRIES - 1); in hfsplus_calc_btree_clump_size()
108 ++i, sectors = sectors >> 1) { in hfsplus_calc_btree_clump_size()
/linux/drivers/md/bcache/
A Dalloc.c86 void bch_rescale_priorities(struct cache_set *c, int sectors) in bch_rescale_priorities() argument
93 atomic_sub(sectors, &c->rescale); in bch_rescale_priorities()
608 unsigned int sectors, in bch_alloc_sectors() argument
656 sectors = min(sectors, b->sectors_free); in bch_alloc_sectors()
658 SET_KEY_OFFSET(k, KEY_OFFSET(k) + sectors); in bch_alloc_sectors()
659 SET_KEY_SIZE(k, sectors); in bch_alloc_sectors()
670 b->sectors_free -= sectors; in bch_alloc_sectors()
673 SET_PTR_OFFSET(&b->key, i, PTR_OFFSET(&b->key, i) + sectors); in bch_alloc_sectors()
675 atomic_long_add(sectors, in bch_alloc_sectors()
/linux/Documentation/ABI/testing/
A Dprocfs-diskstats15 6 sectors read
19 10 sectors written
32 17 sectors discarded
/linux/drivers/mtd/nand/raw/
A Dmtk_ecc.c62 u32 sectors; member
142 if (dec & ecc->sectors) { in mtk_ecc_irq()
148 ecc->sectors = 0; in mtk_ecc_irq()
205 if (config->sectors) in mtk_ecc_config()
206 ecc->sectors = 1 << (config->sectors - 1); in mtk_ecc_config()
213 int sectors) in mtk_ecc_get_stats() argument
221 for (i = 0; i < sectors; i++) { in mtk_ecc_get_stats()
/linux/drivers/block/paride/
A Dpd.c229 int sectors; member
350 s = (block % disk->sectors) + 1; in pd_ide_command()
351 h = (block /= disk->sectors) % disk->heads; in pd_ide_command()
638 pd_send_command(disk, disk->sectors, 0, disk->heads - 1, 0, 0, in pd_init_dev_parms()
720 disk->sectors = le16_to_cpu(*(__le16 *) (pd_scratch + 12)); in pd_identify()
726 disk->capacity = disk->sectors * disk->heads * disk->cylinders; in pd_identify()
742 disk->cylinders, disk->heads, disk->sectors, in pd_identify()
812 geo->sectors = PD_LOG_SECTS; in pd_getgeo()
813 geo->cylinders = disk->capacity / (geo->heads * geo->sectors); in pd_getgeo()
816 geo->sectors = disk->sectors; in pd_getgeo()
/linux/block/partitions/
A Dibm.c41 return cyl * geo->heads * geo->sectors + in cchh2blk()
42 head * geo->sectors; in cchh2blk()
59 return cyl * geo->heads * geo->sectors + in cchhb2blk()
60 head * geo->sectors + in cchhb2blk()
177 offset + geo->sectors; in find_vol1_partitions()
222 * geo->sectors * secperblk; in find_lnx1_partitions()

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