| /kernel/linux/linux-5.10/crypto/async_tx/ |
| D | async_pq.c | 22 * blocks[disks-2] and the 'Q' destination address at blocks[disks-1]
36 const unsigned char *scfs, int disks, in do_async_gen_syndrome() argument
46 int src_cnt = disks - 2; in do_async_gen_syndrome()
76 dma_dest[0] = unmap->addr[disks - 2]; in do_async_gen_syndrome()
77 dma_dest[1] = unmap->addr[disks - 1]; in do_async_gen_syndrome()
107 do_sync_gen_syndrome(struct page **blocks, unsigned int *offsets, int disks, in do_sync_gen_syndrome() argument
112 int start = -1, stop = disks - 3; in do_sync_gen_syndrome()
119 for (i = 0; i < disks; i++) { in do_sync_gen_syndrome()
121 BUG_ON(i > disks - 3); /* P or Q can't be zero */ in do_sync_gen_syndrome()
126 if (i < disks - 2) { in do_sync_gen_syndrome()
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| D | raid6test.c | 35 static void makedata(int disks) in makedata() argument
39 for (i = 0; i < disks; i++) { in makedata()
46 static char disk_type(int d, int disks) in disk_type() argument
48 if (d == disks - 2) in disk_type()
50 else if (d == disks - 1) in disk_type()
57 static void raid6_dual_recov(int disks, size_t bytes, int faila, int failb, in raid6_dual_recov() argument
68 if (failb == disks-1) { in raid6_dual_recov()
69 if (faila == disks-2) { in raid6_dual_recov()
73 disks, bytes, &submit); in raid6_dual_recov()
80 BUG_ON(disks > NDISKS); in raid6_dual_recov()
[all …]
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| D | async_raid6_recov.c | 153 __2data_recov_4(int disks, size_t bytes, int faila, int failb, in __2data_recov_4() argument
168 p = blocks[disks-2]; in __2data_recov_4()
169 p_off = offs[disks-2]; in __2data_recov_4()
170 q = blocks[disks-1]; in __2data_recov_4()
171 q_off = offs[disks-1]; in __2data_recov_4()
203 __2data_recov_5(int disks, size_t bytes, int faila, int failb, in __2data_recov_5() argument
221 for (i = 0; i < disks-2; i++) { in __2data_recov_5()
231 p = blocks[disks-2]; in __2data_recov_5()
232 p_off = offs[disks-2]; in __2data_recov_5()
233 q = blocks[disks-1]; in __2data_recov_5()
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| /kernel/linux/linux-6.6/crypto/async_tx/ |
| D | async_pq.c | 22 * blocks[disks-2] and the 'Q' destination address at blocks[disks-1]
36 const unsigned char *scfs, int disks, in do_async_gen_syndrome() argument
46 int src_cnt = disks - 2; in do_async_gen_syndrome()
76 dma_dest[0] = unmap->addr[disks - 2]; in do_async_gen_syndrome()
77 dma_dest[1] = unmap->addr[disks - 1]; in do_async_gen_syndrome()
107 do_sync_gen_syndrome(struct page **blocks, unsigned int *offsets, int disks, in do_sync_gen_syndrome() argument
112 int start = -1, stop = disks - 3; in do_sync_gen_syndrome()
119 for (i = 0; i < disks; i++) { in do_sync_gen_syndrome()
121 BUG_ON(i > disks - 3); /* P or Q can't be zero */ in do_sync_gen_syndrome()
126 if (i < disks - 2) { in do_sync_gen_syndrome()
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| D | raid6test.c | 35 static void makedata(int disks) in makedata() argument
39 for (i = 0; i < disks; i++) { in makedata()
46 static char disk_type(int d, int disks) in disk_type() argument
48 if (d == disks - 2) in disk_type()
50 else if (d == disks - 1) in disk_type()
57 static void raid6_dual_recov(int disks, size_t bytes, int faila, int failb, in raid6_dual_recov() argument
68 if (failb == disks-1) { in raid6_dual_recov()
69 if (faila == disks-2) { in raid6_dual_recov()
73 disks, bytes, &submit); in raid6_dual_recov()
80 BUG_ON(disks > NDISKS); in raid6_dual_recov()
[all …]
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| D | async_raid6_recov.c | 153 __2data_recov_4(int disks, size_t bytes, int faila, int failb, in __2data_recov_4() argument
168 p = blocks[disks-2]; in __2data_recov_4()
169 p_off = offs[disks-2]; in __2data_recov_4()
170 q = blocks[disks-1]; in __2data_recov_4()
171 q_off = offs[disks-1]; in __2data_recov_4()
203 __2data_recov_5(int disks, size_t bytes, int faila, int failb, in __2data_recov_5() argument
221 for (i = 0; i < disks-2; i++) { in __2data_recov_5()
231 p = blocks[disks-2]; in __2data_recov_5()
232 p_off = offs[disks-2]; in __2data_recov_5()
233 q = blocks[disks-1]; in __2data_recov_5()
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| /kernel/linux/linux-5.10/lib/raid6/ |
| D | recov.c | 20 static void raid6_2data_recov_intx1(int disks, size_t bytes, int faila, in raid6_2data_recov_intx1() argument
28 p = (u8 *)ptrs[disks-2]; in raid6_2data_recov_intx1()
29 q = (u8 *)ptrs[disks-1]; in raid6_2data_recov_intx1()
36 ptrs[disks-2] = dp; in raid6_2data_recov_intx1()
39 ptrs[disks-1] = dq; in raid6_2data_recov_intx1()
41 raid6_call.gen_syndrome(disks, bytes, ptrs); in raid6_2data_recov_intx1()
46 ptrs[disks-2] = p; in raid6_2data_recov_intx1()
47 ptrs[disks-1] = q; in raid6_2data_recov_intx1()
64 static void raid6_datap_recov_intx1(int disks, size_t bytes, int faila, in raid6_datap_recov_intx1() argument
70 p = (u8 *)ptrs[disks-2]; in raid6_datap_recov_intx1()
[all …]
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| D | recov_neon.c | 29 static void raid6_2data_recov_neon(int disks, size_t bytes, int faila, in raid6_2data_recov_neon() argument
36 p = (u8 *)ptrs[disks - 2]; in raid6_2data_recov_neon()
37 q = (u8 *)ptrs[disks - 1]; in raid6_2data_recov_neon()
46 ptrs[disks - 2] = dp; in raid6_2data_recov_neon()
49 ptrs[disks - 1] = dq; in raid6_2data_recov_neon()
51 raid6_call.gen_syndrome(disks, bytes, ptrs); in raid6_2data_recov_neon()
56 ptrs[disks - 2] = p; in raid6_2data_recov_neon()
57 ptrs[disks - 1] = q; in raid6_2data_recov_neon()
69 static void raid6_datap_recov_neon(int disks, size_t bytes, int faila, in raid6_datap_recov_neon() argument
75 p = (u8 *)ptrs[disks - 2]; in raid6_datap_recov_neon()
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| D | recov_s390xc.c | 23 static void raid6_2data_recov_s390xc(int disks, size_t bytes, int faila, in raid6_2data_recov_s390xc() argument
31 p = (u8 *)ptrs[disks-2]; in raid6_2data_recov_s390xc()
32 q = (u8 *)ptrs[disks-1]; in raid6_2data_recov_s390xc()
39 ptrs[disks-2] = dp; in raid6_2data_recov_s390xc()
42 ptrs[disks-1] = dq; in raid6_2data_recov_s390xc()
44 raid6_call.gen_syndrome(disks, bytes, ptrs); in raid6_2data_recov_s390xc()
49 ptrs[disks-2] = p; in raid6_2data_recov_s390xc()
50 ptrs[disks-1] = q; in raid6_2data_recov_s390xc()
72 static void raid6_datap_recov_s390xc(int disks, size_t bytes, int faila, in raid6_datap_recov_s390xc() argument
79 p = (u8 *)ptrs[disks-2]; in raid6_datap_recov_s390xc()
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| D | algos.c | 162 void *(*const dptrs)[RAID6_TEST_DISKS], const int disks) in raid6_choose_gen() argument
165 int start = (disks>>1)-1, stop = disks-3; /* work on the second half of the disks */ in raid6_choose_gen()
187 (*algo)->gen_syndrome(disks, PAGE_SIZE, *dptrs); in raid6_choose_gen()
197 (perf * HZ * (disks-2)) >> in raid6_choose_gen()
211 (*algo)->xor_syndrome(disks, start, stop, in raid6_choose_gen()
221 (perf * HZ * (disks-2)) >> in raid6_choose_gen()
230 (bestgenperf * HZ * (disks-2)) >> in raid6_choose_gen()
234 (bestxorperf * HZ * (disks-2)) >> in raid6_choose_gen()
252 const int disks = RAID6_TEST_DISKS; in raid6_select_algo() local
268 for (i = 0; i < disks; i++) in raid6_select_algo()
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| D | recov_loongarch_simd.c | 29 static void raid6_2data_recov_lsx(int disks, size_t bytes, int faila, in raid6_2data_recov_lsx() argument
36 p = (u8 *)ptrs[disks - 2]; in raid6_2data_recov_lsx()
37 q = (u8 *)ptrs[disks - 1]; in raid6_2data_recov_lsx()
46 ptrs[disks - 2] = dp; in raid6_2data_recov_lsx()
49 ptrs[disks - 1] = dq; in raid6_2data_recov_lsx()
51 raid6_call.gen_syndrome(disks, bytes, ptrs); in raid6_2data_recov_lsx()
56 ptrs[disks - 2] = p; in raid6_2data_recov_lsx()
57 ptrs[disks - 1] = q; in raid6_2data_recov_lsx()
186 static void raid6_datap_recov_lsx(int disks, size_t bytes, int faila, in raid6_datap_recov_lsx() argument
192 p = (u8 *)ptrs[disks - 2]; in raid6_datap_recov_lsx()
[all …]
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| /kernel/linux/linux-6.6/lib/raid6/ |
| D | recov.c | 19 static void raid6_2data_recov_intx1(int disks, size_t bytes, int faila, in raid6_2data_recov_intx1() argument
27 p = (u8 *)ptrs[disks-2]; in raid6_2data_recov_intx1()
28 q = (u8 *)ptrs[disks-1]; in raid6_2data_recov_intx1()
35 ptrs[disks-2] = dp; in raid6_2data_recov_intx1()
38 ptrs[disks-1] = dq; in raid6_2data_recov_intx1()
40 raid6_call.gen_syndrome(disks, bytes, ptrs); in raid6_2data_recov_intx1()
45 ptrs[disks-2] = p; in raid6_2data_recov_intx1()
46 ptrs[disks-1] = q; in raid6_2data_recov_intx1()
63 static void raid6_datap_recov_intx1(int disks, size_t bytes, int faila, in raid6_datap_recov_intx1() argument
69 p = (u8 *)ptrs[disks-2]; in raid6_datap_recov_intx1()
[all …]
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| D | recov_neon.c | 23 static void raid6_2data_recov_neon(int disks, size_t bytes, int faila, in raid6_2data_recov_neon() argument
30 p = (u8 *)ptrs[disks - 2]; in raid6_2data_recov_neon()
31 q = (u8 *)ptrs[disks - 1]; in raid6_2data_recov_neon()
40 ptrs[disks - 2] = dp; in raid6_2data_recov_neon()
43 ptrs[disks - 1] = dq; in raid6_2data_recov_neon()
45 raid6_call.gen_syndrome(disks, bytes, ptrs); in raid6_2data_recov_neon()
50 ptrs[disks - 2] = p; in raid6_2data_recov_neon()
51 ptrs[disks - 1] = q; in raid6_2data_recov_neon()
63 static void raid6_datap_recov_neon(int disks, size_t bytes, int faila, in raid6_datap_recov_neon() argument
69 p = (u8 *)ptrs[disks - 2]; in raid6_datap_recov_neon()
[all …]
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| D | recov_s390xc.c | 23 static void raid6_2data_recov_s390xc(int disks, size_t bytes, int faila, in raid6_2data_recov_s390xc() argument
31 p = (u8 *)ptrs[disks-2]; in raid6_2data_recov_s390xc()
32 q = (u8 *)ptrs[disks-1]; in raid6_2data_recov_s390xc()
39 ptrs[disks-2] = dp; in raid6_2data_recov_s390xc()
42 ptrs[disks-1] = dq; in raid6_2data_recov_s390xc()
44 raid6_call.gen_syndrome(disks, bytes, ptrs); in raid6_2data_recov_s390xc()
49 ptrs[disks-2] = p; in raid6_2data_recov_s390xc()
50 ptrs[disks-1] = q; in raid6_2data_recov_s390xc()
72 static void raid6_datap_recov_s390xc(int disks, size_t bytes, int faila, in raid6_datap_recov_s390xc() argument
79 p = (u8 *)ptrs[disks-2]; in raid6_datap_recov_s390xc()
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| D | neon.h | 3 void raid6_neon1_gen_syndrome_real(int disks, unsigned long bytes, void **ptrs);
4 void raid6_neon1_xor_syndrome_real(int disks, int start, int stop,
6 void raid6_neon2_gen_syndrome_real(int disks, unsigned long bytes, void **ptrs);
7 void raid6_neon2_xor_syndrome_real(int disks, int start, int stop,
9 void raid6_neon4_gen_syndrome_real(int disks, unsigned long bytes, void **ptrs);
10 void raid6_neon4_xor_syndrome_real(int disks, int start, int stop,
12 void raid6_neon8_gen_syndrome_real(int disks, unsigned long bytes, void **ptrs);
13 void raid6_neon8_xor_syndrome_real(int disks, int start, int stop,
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| D | algos.c | 160 void *(*const dptrs)[RAID6_TEST_DISKS], const int disks) in raid6_choose_gen() argument
163 int start = (disks>>1)-1, stop = disks-3; /* work on the second half of the disks */ in raid6_choose_gen()
185 (*algo)->gen_syndrome(disks, PAGE_SIZE, *dptrs); in raid6_choose_gen()
195 (perf * HZ * (disks-2)) >> in raid6_choose_gen()
215 (bestgenperf * HZ * (disks - 2)) >> in raid6_choose_gen()
227 best->xor_syndrome(disks, start, stop, in raid6_choose_gen()
234 (perf * HZ * (disks - 2)) >> in raid6_choose_gen()
248 const int disks = RAID6_TEST_DISKS; in raid6_select_algo() local
264 for (i = 0; i < disks; i++) in raid6_select_algo()
267 cycle = ((disks - 2) * PAGE_SIZE) / 65536; in raid6_select_algo()
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| D | recov_loongarch_simd.c | 29 static void raid6_2data_recov_lsx(int disks, size_t bytes, int faila, in raid6_2data_recov_lsx() argument
36 p = (u8 *)ptrs[disks - 2]; in raid6_2data_recov_lsx()
37 q = (u8 *)ptrs[disks - 1]; in raid6_2data_recov_lsx()
46 ptrs[disks - 2] = dp; in raid6_2data_recov_lsx()
49 ptrs[disks - 1] = dq; in raid6_2data_recov_lsx()
51 raid6_call.gen_syndrome(disks, bytes, ptrs); in raid6_2data_recov_lsx()
56 ptrs[disks - 2] = p; in raid6_2data_recov_lsx()
57 ptrs[disks - 1] = q; in raid6_2data_recov_lsx()
186 static void raid6_datap_recov_lsx(int disks, size_t bytes, int faila, in raid6_datap_recov_lsx() argument
192 p = (u8 *)ptrs[disks - 2]; in raid6_datap_recov_lsx()
[all …]
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| /kernel/linux/linux-5.10/Documentation/driver-api/md/ |
| D | raid5-cache.rst | 6 disks. The role of RAID disks isn't changed with the cache disk. The cache disk
7 caches data to the RAID disks. The cache can be in write-through (supported
28 disks and it's possible the writes don't hit all RAID disks yet before the
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
52 write. If a write crosses all RAID disks of a stripe, we call it full-stripe
57 RAID disks only after the data becomes a full stripe write. This will
63 disks later after specific conditions met. So cache disk failure will cause
90 order in which MD writes data to cache disk and RAID disks. Specifically, in
92 parity to the log, writes the data and parity to RAID disks after the data and
[all …]
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| D | raid5-ppl.rst | 7 may become inconsistent with data on other member disks. If the array is also
9 disks is missing. This can lead to silent data corruption when rebuilding the
19 which chunk writes have completed. If one of the not modified data disks of
22 unclean shutdown and all disks are available, eliminating the need to resync
27 parity are dispatched to disks. PPL is a distributed log - it is stored on
44 There is a limitation of maximum 64 disks in the array for PPL. It allows to
45 keep data structures and implementation simple. RAID5 arrays with so many disks
46 are not likely due to high risk of multiple disks failure. Such restriction
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| /kernel/linux/linux-6.6/Documentation/driver-api/md/ |
| D | raid5-cache.rst | 6 disks. The role of RAID disks isn't changed with the cache disk. The cache disk
7 caches data to the RAID disks. The cache can be in write-through (supported
28 disks and it's possible the writes don't hit all RAID disks yet before the
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
52 write. If a write crosses all RAID disks of a stripe, we call it full-stripe
57 RAID disks only after the data becomes a full stripe write. This will
63 disks later after specific conditions met. So cache disk failure will cause
90 order in which MD writes data to cache disk and RAID disks. Specifically, in
92 parity to the log, writes the data and parity to RAID disks after the data and
[all …]
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| D | raid5-ppl.rst | 7 may become inconsistent with data on other member disks. If the array is also
9 disks is missing. This can lead to silent data corruption when rebuilding the
19 which chunk writes have completed. If one of the not modified data disks of
22 unclean shutdown and all disks are available, eliminating the need to resync
27 parity are dispatched to disks. PPL is a distributed log - it is stored on
44 There is a limitation of maximum 64 disks in the array for PPL. It allows to
45 keep data structures and implementation simple. RAID5 arrays with so many disks
46 are not likely due to high risk of multiple disks failure. Such restriction
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| /kernel/linux/linux-6.6/block/partitions/ |
| D | Kconfig | 10 Say Y here if you would like to use hard disks under Linux which
24 Support hard disks partitioned under Acorn operating systems.
31 Say Y here if you would like to use hard disks under Linux which
44 Say Y here if you would like to use hard disks under Linux which
72 to read disks partitioned under RISCiX.
80 "logical volumes" can be spread across one or multiple disks,
89 Say Y here if you would like to use hard disks under Linux which
96 Say Y here if you would like to use hard disks under Linux which
103 Say Y here if you would like to use hard disks under Linux which
111 partition table format used by IBM DASD disks operating under CMS.
[all …]
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| /kernel/linux/linux-5.10/block/partitions/ |
| D | Kconfig | 8 Say Y here if you would like to use hard disks under Linux which
22 Support hard disks partitioned under Acorn operating systems.
29 Say Y here if you would like to use hard disks under Linux which
42 Say Y here if you would like to use hard disks under Linux which
70 to read disks partitioned under RISCiX.
78 "logical volumes" can be spread across one or multiple disks,
87 Say Y here if you would like to use hard disks under Linux which
94 Say Y here if you would like to use hard disks under Linux which
101 Say Y here if you would like to use hard disks under Linux which
109 partition table format used by IBM DASD disks operating under CMS.
[all …]
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| /kernel/linux/linux-6.6/drivers/md/ |
| D | md-linear.c | 40 if (sector < conf->disks[mid].end_sector) in which_dev()
46 return conf->disks + lo; in which_dev()
68 conf = kzalloc(struct_size(conf, disks, raid_disks), GFP_KERNEL); in linear_conf()
77 struct dev_info *disk = conf->disks + j; in linear_conf()
108 conf->disks[0].end_sector = conf->disks[0].rdev->sectors; in linear_conf()
111 conf->disks[i].end_sector = in linear_conf()
112 conf->disks[i-1].end_sector + in linear_conf()
113 conf->disks[i].rdev->sectors; in linear_conf()
119 * conf->disks[] when it is updated in linear_add() and used to in linear_conf()
120 * iterate old conf->disks[] earray in linear_congested(). in linear_conf()
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| /kernel/linux/linux-5.10/drivers/md/ |
| D | md-linear.c | 40 if (sector < conf->disks[mid].end_sector) in which_dev()
46 return conf->disks + lo; in which_dev()
69 conf = kzalloc(struct_size(conf, disks, raid_disks), GFP_KERNEL); in linear_conf()
78 struct dev_info *disk = conf->disks + j; in linear_conf()
117 conf->disks[0].end_sector = conf->disks[0].rdev->sectors; in linear_conf()
120 conf->disks[i].end_sector = in linear_conf()
121 conf->disks[i-1].end_sector + in linear_conf()
122 conf->disks[i].rdev->sectors; in linear_conf()
128 * conf->disks[] when it is updated in linear_add() and used to in linear_conf()
129 * iterate old conf->disks[] earray in linear_congested(). in linear_conf()
[all …]
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