crypto/async_tx/async_raid6_recov.c

153 __2data_recov_4(int disks, size_t bytes, int faila, int failb,
168 	p = blocks[disks-2];
169 	p_off = offs[disks-2];
170 	q = blocks[disks-1];
171 	q_off = offs[disks-1];
203 __2data_recov_5(int disks, size_t bytes, int faila, int failb,
221 	for (i = 0; i < disks-2; i++) {
231 	p = blocks[disks-2];
232 	p_off = offs[disks-2];
233 	q = blocks[disks-1];
234 	q_off = offs[disks-1];
294 __2data_recov_n(int disks, size_t bytes, int faila, int failb,
309 	p = blocks[disks-2];
310 	p_off = offs[disks-2];
311 	q = blocks[disks-1];
312 	q_off = offs[disks-1];
321 	blocks[disks-2] = dp;
322 	offs[disks-2] = dp_off;
326 	blocks[disks-1] = dq;
327 	offs[disks-1] = dq_off;
330 	tx = async_gen_syndrome(blocks, offs, disks, bytes, submit);
337 	blocks[disks-2] = p;
338 	offs[disks-2] = p_off;
339 	blocks[disks-1] = q;
340 	offs[disks-1] = q_off;
384  * @disks: number of disks in the RAID-6 array
393 async_raid6_2data_recov(int disks, size_t bytes, int faila, int failb,
404 	pr_debug("%s: disks: %d len: %zu\n", __func__, disks, bytes);
415 		for (i = 0; i < disks; i++)
421 		raid6_2data_recov(disks, bytes, faila, failb, ptrs);
429 	for (i = 0; i < disks-2 && non_zero_srcs < 4; i++)
442 		 * both data disks missing.
444 		return __2data_recov_4(disks, bytes, faila, failb,
450 		 * array with 2 of 3 data disks missing.
452 		return __2data_recov_5(disks, bytes, faila, failb,
455 		return __2data_recov_n(disks, bytes, faila, failb,
463  * @disks: number of disks in the RAID-6 array
471 async_raid6_datap_recov(int disks, size_t bytes, int faila,
487 	pr_debug("%s: disks: %d len: %zu\n", __func__, disks, bytes);
498 		for (i = 0; i < disks; i++)
504 		raid6_datap_recov(disks, bytes, faila, ptrs);
513 	for (i = 0; i < disks-2; i++) {
525 	p = blocks[disks-2];
526 	p_off = offs[disks-2];
527 	q = blocks[disks-1];
528 	q_off = offs[disks-1];
536 	blocks[disks-1] = dq;
537 	offs[disks-1] = dq_off;
557 		tx = async_gen_syndrome(blocks, offs, disks, bytes, submit);
563 	blocks[disks-1] = q;
564 	offs[disks-1] = q_off;