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Searched refs:stripe (Results 1 – 25 of 50) sorted by relevance

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/linux/fs/btrfs/
H A Dscrub.c230 #define scrub_calc_start_bit(stripe, name, block_nr) \ argument
234 ASSERT(block_nr < stripe->nr_sectors, \
235 "nr_sectors=%u block_nr=%u", stripe->nr_sectors, block_nr); \
236 __start_bit = scrub_bitmap_nr_##name * stripe->nr_sectors + block_nr; \
241 static inline void scrub_bitmap_set_##name(struct scrub_stripe *stripe, \
245 const unsigned int start_bit = scrub_calc_start_bit(stripe, \
248 bitmap_set(stripe->bitmaps, start_bit, nr_blocks); \
250 static inline void scrub_bitmap_clear_##name(struct scrub_stripe *stripe, \
254 const unsigned int start_bit = scrub_calc_start_bit(stripe, name, \
257 bitmap_clear(stripe->bitmaps, start_bit, nr_blocks); \
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H A Draid56.c1246 struct btrfs_io_stripe *stripe; in rbio_add_io_paddrs() local
1260 stripe = &rbio->bioc->stripes[stripe_nr]; in rbio_add_io_paddrs()
1261 disk_start = stripe->physical + sector_nr * sectorsize; in rbio_add_io_paddrs()
1264 if (!stripe->dev->bdev) { in rbio_add_io_paddrs()
1288 last->bi_bdev == stripe->dev->bdev) { in rbio_add_io_paddrs()
1296 bio = bio_alloc(stripe->dev->bdev, in rbio_add_io_paddrs()
1413 int stripe; in generate_pq_vertical_step() local
1417 for (stripe = 0; stripe < rbio->nr_data; stripe++) in generate_pq_vertical_step()
1418 pointers[stripe] = kmap_local_paddr( in generate_pq_vertical_step()
1419 sector_paddr_in_rbio(rbio, stripe, sector_nr, step_nr, 0)); in generate_pq_vertical_step()
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H A Dbio.c427 struct btrfs_io_stripe *stripe = bio->bi_private; in orig_write_end_io_work() local
428 struct btrfs_io_context *bioc = stripe->bioc; in orig_write_end_io_work()
434 btrfs_log_dev_io_error(bio, stripe->dev); in orig_write_end_io_work()
447 stripe->physical = bio->bi_iter.bi_sector << SECTOR_SHIFT; in orig_write_end_io_work()
465 struct btrfs_io_stripe *stripe = bio->bi_private; in clone_write_end_io_work() local
468 atomic_inc(&stripe->bioc->error); in clone_write_end_io_work()
469 btrfs_log_dev_io_error(bio, stripe->dev); in clone_write_end_io_work()
471 stripe->physical = bio->bi_iter.bi_sector << SECTOR_SHIFT; in clone_write_end_io_work()
475 bio_endio(stripe->bioc->orig_bio); in clone_write_end_io_work()
H A DMakefile35 lru_cache.o raid-stripe-tree.o fiemap.o direct-io.o
46 tests/raid-stripe-tree-tests.o tests/delayed-refs-tests.o \
H A Draid-stripe-tree.h28 u32 stripe_index, struct btrfs_io_stripe *stripe);
/linux/drivers/md/
H A Ddm-stripe.c24 struct stripe { struct
47 struct stripe stripe[] __counted_by(stripes); argument
65 unsigned int stripe, char **argv) in get_stripe() argument
75 &sc->stripe[stripe].dev); in get_stripe()
79 sc->stripe[stripe].physical_start = start; in get_stripe()
132 sc = kmalloc_flex(*sc, stripe, stripes); in stripe_ctr()
178 dm_put_device(ti, sc->stripe[i].dev); in stripe_ctr()
182 atomic_set(&(sc->stripe[i].error_count), 0); in stripe_ctr()
196 dm_put_device(ti, sc->stripe[i].dev); in stripe_dtr()
203 uint32_t *stripe, sector_t *result) in stripe_map_sector() argument
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/linux/fs/btrfs/tests/
H A Draid-stripe-tree-tests.c68 struct btrfs_io_stripe *stripe = &bioc->stripes[i]; in test_punch_hole_3extents() local
70 stripe->dev = btrfs_device_by_devid(fs_info->fs_devices, i); in test_punch_hole_3extents()
71 if (!stripe->dev) { in test_punch_hole_3extents()
77 stripe->physical = logical1 + i * SZ_1G; in test_punch_hole_3extents()
89 struct btrfs_io_stripe *stripe = &bioc->stripes[i]; in test_punch_hole_3extents() local
91 stripe->dev = btrfs_device_by_devid(fs_info->fs_devices, i); in test_punch_hole_3extents()
92 if (!stripe->dev) { in test_punch_hole_3extents()
98 stripe->physical = logical2 + i * SZ_1G; in test_punch_hole_3extents()
110 struct btrfs_io_stripe *stripe = &bioc->stripes[i]; in test_punch_hole_3extents() local
112 stripe->dev = btrfs_device_by_devid(fs_info->fs_devices, i); in test_punch_hole_3extents()
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/linux/Documentation/driver-api/md/
H A Draid5-ppl.rst6 addressed by PPL is that after a dirty shutdown, parity of a particular stripe
15 Partial parity for a write operation is the XOR of stripe data chunks not
18 the stripe, consistent with its state before the write operation, regardless of
20 this stripe is missing, this updated parity can be used to recover its
29 stripe. It does not require a dedicated journaling drive. Write performance is
36 silent data corruption. If a dirty disk of a stripe is lost, no PPL recovery is
37 performed for this stripe (parity is not updated). So it is possible to have
38 arbitrary data in the written part of a stripe if that disk is lost. In such
H A Draid5-cache.rst27 and parity don't match. The reason is that a stripe write involves several RAID
52 write. If a write crosses all RAID disks of a stripe, we call it full-stripe
53 write. For non-full-stripe writes, MD must read old data before the new parity
57 RAID disks only after the data becomes a full stripe write. This will
101 release the memory cache. The flush conditions could be stripe becomes a full
102 stripe write, free cache disk space is low or free in-kernel memory cache space
107 data and data. If MD finds a stripe with data and valid parities (1 parity for
/linux/drivers/md/bcache/
H A Dwriteback.h82 int stripe = offset_to_stripe(&dc->disk, offset); in bcache_dev_stripe_dirty() local
84 if (stripe < 0) in bcache_dev_stripe_dirty()
88 if (atomic_read(dc->disk.stripe_sectors_dirty + stripe)) in bcache_dev_stripe_dirty()
95 stripe++; in bcache_dev_stripe_dirty()
/linux/tools/testing/selftests/ublk/
H A Dtest_stress_03.sh33 ublk_io_and_remove 256M -t stripe -q 4 -z "${UBLK_BACKFILES[1]}" "${UBLK_BACKFILES[2]}" &
39 ublk_io_and_remove 256M -t stripe -q 4 --auto_zc "${UBLK_BACKFILES[1]}" "${UBLK_BACKFILES[2]}" &
47 ublk_io_and_remove 256M -t stripe -q 4 --auto_zc --nthreads 8 --per_io_tasks "${UBLK_BACKFILES[1]}" "${UBLK_BACKFILES[2]}" &
H A Dtest_stress_04.sh32 ublk_io_and_kill_daemon 256M -t stripe -q 4 -z "${UBLK_BACKFILES[1]}" "${UBLK_BACKFILES[2]}" &
38 …ublk_io_and_kill_daemon 256M -t stripe -q 4 --auto_zc --no_ublk_fixed_fd "${UBLK_BACKFILES[1]}" "$…
46 …ublk_io_and_kill_daemon 256M -t stripe -q 4 --auto_zc --nthreads 8 --per_io_tasks "${UBLK_BACKFILE…
H A Dstripe.c12 struct stripe { struct
23 struct stripe s[NR_STRIPE]; argument
56 struct stripe *t = &s->s[i]; in alloc_stripe_array()
87 struct stripe *this = &s->s[idx]; in calculate_stripe_array()
153 struct stripe *t = &s->s[i - zc]; in stripe_queue_tgt_rw_io()
292 unsigned chunk_size = ctx->stripe.chunk_size; in ublk_stripe_tgt_init()
372 ctx->stripe.chunk_size = 65536; in ublk_stripe_cmd_line()
378 ctx->stripe.chunk_size = strtol(optarg, NULL, 10); in ublk_stripe_cmd_line()
H A Dtest_stress_06.sh29 ublk_io_and_remove 256M -t stripe -q 4 -u "${UBLK_BACKFILES[1]}" "${UBLK_BACKFILES[2]}" &
34 ublk_io_and_remove 256M -t stripe -q 4 -u --nthreads 8 --per_io_tasks "${UBLK_BACKFILES[1]}" "${UBL…
H A Dtest_stress_07.sh29 ublk_io_and_kill_daemon 256M -t stripe -q 4 -u "${UBLK_BACKFILES[1]}" "${UBLK_BACKFILES[2]}" &
34 ublk_io_and_kill_daemon 256M -t stripe -q 4 -u --nthreads 8 --per_io_tasks "${UBLK_BACKFILES[1]}" "…
H A Dtest_stripe_06.sh13 dev_id=$(_add_ublk_dev -t stripe -u -q 2 "${UBLK_BACKFILES[0]}" "${UBLK_BACKFILES[1]}")
H A Dtest_stripe_02.sh8 _prep_test "stripe" "mkfs & mount & umount"
13 dev_id=$(_add_ublk_dev -t stripe "${UBLK_BACKFILES[0]}" "${UBLK_BACKFILES[1]}")
19 _cleanup_test "stripe"
H A Dtest_stripe_04.sh8 _prep_test "stripe" "mkfs & mount & umount on zero copy"
13 dev_id=$(_add_ublk_dev -t stripe -z -q 2 "${UBLK_BACKFILES[0]}" "${UBLK_BACKFILES[1]}")
19 _cleanup_test "stripe"
H A Dtest_stripe_05.sh17 dev_id=$(_add_ublk_dev -t stripe -q 2 -u "${UBLK_BACKFILES[0]}" "${UBLK_BACKFILES[1]}")
H A Dtest_stripe_01.sh12 _prep_test "stripe" "write and verify test"
17 dev_id=$(_add_ublk_dev -t stripe "${UBLK_BACKFILES[0]}" "${UBLK_BACKFILES[1]}")
24 _cleanup_test "stripe"
H A Dtest_stripe_03.sh12 _prep_test "stripe" "write and verify test"
17 dev_id=$(_add_ublk_dev -q 2 -t stripe "${UBLK_BACKFILES[0]}" "${UBLK_BACKFILES[1]}")
24 _cleanup_test "stripe"
H A Dtest_stress_01.sh29 ublk_io_and_remove 256M -t stripe -q 4 "${UBLK_BACKFILES[1]}" "${UBLK_BACKFILES[2]}" &
H A Dtest_stress_02.sh30 ublk_io_and_kill_daemon 256M -t stripe -q "$nr_queue" "${UBLK_BACKFILES[1]}" "${UBLK_BACKFILES[2]}" &
/linux/fs/nfs/blocklayout/
H A Ddev.c185 p = xdr_decode_hyper(p, &b->stripe.chunk_size); in nfs4_block_decode_volume()
186 b->stripe.volumes_count = be32_to_cpup(p++); in nfs4_block_decode_volume()
187 if (b->stripe.volumes_count > PNFS_BLOCK_MAX_DEVICES) { in nfs4_block_decode_volume()
188 dprintk("Too many volumes: %d\n", b->stripe.volumes_count); in nfs4_block_decode_volume()
192 p = xdr_inline_decode(xdr, b->stripe.volumes_count * 4); in nfs4_block_decode_volume()
195 for (i = 0; i < b->stripe.volumes_count; i++) in nfs4_block_decode_volume()
196 b->stripe.volumes[i] = be32_to_cpup(p++); in nfs4_block_decode_volume()
494 v->stripe.volumes_count, gfp_mask); in bl_parse_stripe()
498 for (i = 0; i < v->stripe.volumes_count; i++) { in bl_parse_stripe()
500 volumes, v->stripe.volumes[i], gfp_mask); in bl_parse_stripe()
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/linux/Documentation/admin-guide/device-mapper/
H A Dunstriped.rst14 <number of stripes> <chunk size> <stripe #> <dev_path> <offset>
25 <stripe #>
26 The stripe number within the device that corresponds to physical
33 An example of undoing an existing dm-stripe
88 in a 256k stripe across the two cores::

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