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Searched refs:disks (Results 1 – 25 of 128) sorted by relevance

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/linux/crypto/async_tx/
A Dasync_pq.c46 int src_cnt = disks - 2; in do_async_gen_syndrome()
126 if (i < disks - 2) { in do_sync_gen_syndrome()
180 int src_cnt = disks - 2; in async_gen_syndrome()
187 BUG_ON(disks > MAX_DISKS || !(P(blocks, disks) || Q(blocks, disks))); in async_gen_syndrome()
225 if (P(blocks, disks)) in async_gen_syndrome()
227 P(offsets, disks), in async_gen_syndrome()
235 if (Q(blocks, disks)) in async_gen_syndrome()
259 P(offsets, disks) = 0; in async_gen_syndrome()
263 Q(offsets, disks) = 0; in async_gen_syndrome()
278 disks, len); in pq_val_chan()
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A Draid6test.c48 if (d == disks - 2) in disk_type()
50 else if (d == disks - 1) in disk_type()
68 if (failb == disks-1) { in raid6_dual_recov()
69 if (faila == disks-2) { in raid6_dual_recov()
80 BUG_ON(disks > NDISKS); in raid6_dual_recov()
100 if (failb == disks-2) { in raid6_dual_recov()
143 __func__, i, j, i, disk_type(i, disks), j, disk_type(j, disks), in test_disks()
160 recovi = data[disks]; in test()
161 recovj = data[disks+1]; in test()
162 spare = data[disks+2]; in test()
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A Dasync_raid6_recov.c168 p = blocks[disks-2]; in __2data_recov_4()
170 q = blocks[disks-1]; in __2data_recov_4()
231 p = blocks[disks-2]; in __2data_recov_5()
233 q = blocks[disks-1]; in __2data_recov_5()
309 p = blocks[disks-2]; in __2data_recov_n()
311 q = blocks[disks-1]; in __2data_recov_n()
337 blocks[disks-2] = p; in __2data_recov_n()
339 blocks[disks-1] = q; in __2data_recov_n()
525 p = blocks[disks-2]; in async_raid6_datap_recov()
527 q = blocks[disks-1]; in async_raid6_datap_recov()
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/linux/lib/raid6/
A Drecov.c28 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()
46 ptrs[disks-2] = p; in raid6_2data_recov_intx1()
47 ptrs[disks-1] = q; in raid6_2data_recov_intx1()
70 p = (u8 *)ptrs[disks-2]; in raid6_datap_recov_intx1()
71 q = (u8 *)ptrs[disks-1]; in raid6_datap_recov_intx1()
77 ptrs[disks-1] = dq; in raid6_datap_recov_intx1()
83 ptrs[disks-1] = q; in raid6_datap_recov_intx1()
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A Drecov_neon.c36 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()
75 p = (u8 *)ptrs[disks - 2]; in raid6_datap_recov_neon()
76 q = (u8 *)ptrs[disks - 1]; in raid6_datap_recov_neon()
84 ptrs[disks - 1] = dq; in raid6_datap_recov_neon()
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A Drecov_s390xc.c31 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()
79 p = (u8 *)ptrs[disks-2]; in raid6_datap_recov_s390xc()
80 q = (u8 *)ptrs[disks-1]; in raid6_datap_recov_s390xc()
86 ptrs[disks-1] = dq; in raid6_datap_recov_s390xc()
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A Drecov_avx2.c24 p = (u8 *)ptrs[disks-2]; in raid6_2data_recov_avx2()
25 q = (u8 *)ptrs[disks-1]; in raid6_2data_recov_avx2()
32 ptrs[disks-2] = dp; in raid6_2data_recov_avx2()
35 ptrs[disks-1] = dq; in raid6_2data_recov_avx2()
37 raid6_call.gen_syndrome(disks, bytes, ptrs); in raid6_2data_recov_avx2()
42 ptrs[disks-2] = p; in raid6_2data_recov_avx2()
43 ptrs[disks-1] = q; in raid6_2data_recov_avx2()
193 p = (u8 *)ptrs[disks-2]; in raid6_datap_recov_avx2()
194 q = (u8 *)ptrs[disks-1]; in raid6_datap_recov_avx2()
200 ptrs[disks-1] = dq; in raid6_datap_recov_avx2()
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A Drecov_avx512.c32 p = (u8 *)ptrs[disks-2]; in raid6_2data_recov_avx512()
33 q = (u8 *)ptrs[disks-1]; in raid6_2data_recov_avx512()
43 ptrs[disks-2] = dp; in raid6_2data_recov_avx512()
46 ptrs[disks-1] = dq; in raid6_2data_recov_avx512()
48 raid6_call.gen_syndrome(disks, bytes, ptrs); in raid6_2data_recov_avx512()
53 ptrs[disks-2] = p; in raid6_2data_recov_avx512()
54 ptrs[disks-1] = q; in raid6_2data_recov_avx512()
234 p = (u8 *)ptrs[disks-2]; in raid6_datap_recov_avx512()
235 q = (u8 *)ptrs[disks-1]; in raid6_datap_recov_avx512()
244 ptrs[disks-1] = dq; in raid6_datap_recov_avx512()
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A Drecov_ssse3.c26 p = (u8 *)ptrs[disks-2]; in raid6_2data_recov_ssse3()
27 q = (u8 *)ptrs[disks-1]; in raid6_2data_recov_ssse3()
34 ptrs[disks-2] = dp; in raid6_2data_recov_ssse3()
37 ptrs[disks-1] = dq; in raid6_2data_recov_ssse3()
39 raid6_call.gen_syndrome(disks, bytes, ptrs); in raid6_2data_recov_ssse3()
44 ptrs[disks-2] = p; in raid6_2data_recov_ssse3()
45 ptrs[disks-1] = q; in raid6_2data_recov_ssse3()
200 p = (u8 *)ptrs[disks-2]; in raid6_datap_recov_ssse3()
201 q = (u8 *)ptrs[disks-1]; in raid6_datap_recov_ssse3()
207 ptrs[disks-1] = dq; in raid6_datap_recov_ssse3()
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A Dalgos.c149 int start = (disks>>1)-1, stop = disks-3; /* work on the second half of the disks */ in raid6_choose_gen()
181 (perf * HZ * (disks-2)) >> in raid6_choose_gen()
195 (*algo)->xor_syndrome(disks, start, stop, in raid6_choose_gen()
205 (perf * HZ * (disks-2)) >> in raid6_choose_gen()
214 (bestgenperf * HZ * (disks-2)) >> in raid6_choose_gen()
218 (bestxorperf * HZ * (disks-2)) >> in raid6_choose_gen()
236 const int disks = RAID6_TEST_DISKS; in raid6_select_algo() local
252 for (i = 0; i < disks; i++) in raid6_select_algo()
255 cycle = ((disks - 2) * PAGE_SIZE) / 65536; in raid6_select_algo()
261 if ((disks - 2) * PAGE_SIZE % 65536) in raid6_select_algo()
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A Davx512.c50 z0 = disks - 3; /* Highest data disk */ in raid6_avx5121_gen_syndrome()
101 static void raid6_avx5121_xor_syndrome(int disks, int start, int stop, in raid6_avx5121_xor_syndrome() argument
109 p = dptr[disks-2]; /* XOR parity */ in raid6_avx5121_xor_syndrome()
110 q = dptr[disks-1]; /* RS syndrome */ in raid6_avx5121_xor_syndrome()
177 z0 = disks - 3; /* Highest data disk */ in raid6_avx5122_gen_syndrome()
233 static void raid6_avx5122_xor_syndrome(int disks, int start, int stop, in raid6_avx5122_xor_syndrome() argument
241 p = dptr[disks-2]; /* XOR parity */ in raid6_avx5122_xor_syndrome()
242 q = dptr[disks-1]; /* RS syndrome */ in raid6_avx5122_xor_syndrome()
336 z0 = disks - 3; /* Highest data disk */ in raid6_avx5124_gen_syndrome()
431 p = dptr[disks-2]; /* XOR parity */ in raid6_avx5124_xor_syndrome()
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A Dsse2.c42 z0 = disks - 3; /* Highest data disk */ in raid6_sse21_gen_syndrome()
87 static void raid6_sse21_xor_syndrome(int disks, int start, int stop, in raid6_sse21_xor_syndrome() argument
95 p = dptr[disks-2]; /* XOR parity */ in raid6_sse21_xor_syndrome()
96 q = dptr[disks-1]; /* RS syndrome */ in raid6_sse21_xor_syndrome()
152 z0 = disks - 3; /* Highest data disk */ in raid6_sse22_gen_syndrome()
198 static void raid6_sse22_xor_syndrome(int disks, int start, int stop, in raid6_sse22_xor_syndrome() argument
206 p = dptr[disks-2]; /* XOR parity */ in raid6_sse22_xor_syndrome()
207 q = dptr[disks-1]; /* RS syndrome */ in raid6_sse22_xor_syndrome()
284 z0 = disks - 3; /* Highest data disk */ in raid6_sse24_gen_syndrome()
372 p = dptr[disks-2]; /* XOR parity */ in raid6_sse24_xor_syndrome()
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A Davx2.c40 z0 = disks - 3; /* Highest data disk */ in raid6_avx21_gen_syndrome()
82 static void raid6_avx21_xor_syndrome(int disks, int start, int stop, in raid6_avx21_xor_syndrome() argument
90 p = dptr[disks-2]; /* XOR parity */ in raid6_avx21_xor_syndrome()
91 q = dptr[disks-1]; /* RS syndrome */ in raid6_avx21_xor_syndrome()
147 z0 = disks - 3; /* Highest data disk */ in raid6_avx22_gen_syndrome()
192 static void raid6_avx22_xor_syndrome(int disks, int start, int stop, in raid6_avx22_xor_syndrome() argument
200 p = dptr[disks-2]; /* XOR parity */ in raid6_avx22_xor_syndrome()
201 q = dptr[disks-1]; /* RS syndrome */ in raid6_avx22_xor_syndrome()
279 z0 = disks - 3; /* Highest data disk */ in raid6_avx24_gen_syndrome()
361 p = dptr[disks-2]; /* XOR parity */ in raid6_avx24_xor_syndrome()
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A Dneon.c30 static void raid6_neon ## _n ## _gen_syndrome(int disks, \
36 raid6_neon ## _n ## _gen_syndrome_real(disks, \
40 static void raid6_neon ## _n ## _xor_syndrome(int disks, \
47 raid6_neon ## _n ## _xor_syndrome_real(disks, \
A Dmmx.c35 static void raid6_mmx1_gen_syndrome(int disks, size_t bytes, void **ptrs) in raid6_mmx1_gen_syndrome() argument
41 z0 = disks - 3; /* Highest data disk */ in raid6_mmx1_gen_syndrome()
83 static void raid6_mmx2_gen_syndrome(int disks, size_t bytes, void **ptrs) in raid6_mmx2_gen_syndrome() argument
89 z0 = disks - 3; /* Highest data disk */ in raid6_mmx2_gen_syndrome()
A Dsse1.c40 static void raid6_sse11_gen_syndrome(int disks, size_t bytes, void **ptrs) in raid6_sse11_gen_syndrome() argument
46 z0 = disks - 3; /* Highest data disk */ in raid6_sse11_gen_syndrome()
99 static void raid6_sse12_gen_syndrome(int disks, size_t bytes, void **ptrs) in raid6_sse12_gen_syndrome() argument
105 z0 = disks - 3; /* Highest data disk */ in raid6_sse12_gen_syndrome()
A Dvpermxor.uc43 static void noinline raid6_vpermxor$#_gen_syndrome_real(int disks, size_t bytes,
51 z0 = disks - 3; /* Highest data disk */
72 static void raid6_vpermxor$#_gen_syndrome(int disks, size_t bytes, void **ptrs)
77 raid6_vpermxor$#_gen_syndrome_real(disks, bytes, ptrs);
A Ds390vx.uc83 static void raid6_s390vx$#_gen_syndrome(int disks, size_t bytes, void **ptrs)
93 z0 = disks - 3; /* Highest data disk */
115 static void raid6_s390vx$#_xor_syndrome(int disks, int start, int stop,
124 p = dptr[disks - 2]; /* XOR parity */
125 q = dptr[disks - 1]; /* RS syndrome */
A Dint.uc82 static void raid6_int$#_gen_syndrome(int disks, size_t bytes, void **ptrs)
90 z0 = disks - 3; /* Highest data disk */
110 static void raid6_int$#_xor_syndrome(int disks, int start, int stop,
120 p = dptr[disks-2]; /* XOR parity */
121 q = dptr[disks-1]; /* RS syndrome */
/linux/Documentation/driver-api/md/
A Draid5-cache.rst6 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
94 from raid disks as usual.
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A Draid5-ppl.rst7 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
/linux/drivers/md/
A Dmd-linear.c40 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()
A Draid5.c1060 int i, disks = sh->disks; in ops_run_io() local
1498 int disks = sh->disks; in ops_run_compute5() local
1552 int disks = sh->disks; in set_syndrome_sources() local
1595 int disks = sh->disks; in ops_run_compute6_1() local
1795 int disks = sh->disks; in ops_run_prexor5() local
1859 int disks = sh->disks; in ops_run_biodrain() local
1930 int disks = sh->disks; in ops_complete_reconstruct() local
1978 int disks = sh->disks; in ops_run_reconstruct5() local
2149 int disks = sh->disks; in ops_run_check_p() local
4587 int disks = sh->disks; in analyse_stripe() local
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/linux/tools/testing/selftests/zram/
A DREADME6 (<id> = 0, 1, ...). Pages written to these disks are compressed and stored
7 in memory itself. These disks allow very fast I/O and compression provides
9 use as swap disks, various caches under /var and maybe many more :)
26 zram01.sh: creates general purpose ram disks with ext4 filesystems
/linux/block/partitions/
A DKconfig10 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
118 Say Y here if you would like to use hard disks under Linux which
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