137  * When performing a recovery, we need 2 bios, one for read,
154 	if (test_bit(MD_RECOVERY_SYNC, &conf->mddev->recovery) ||  in r10buf_pool_alloc()
155 	    test_bit(MD_RECOVERY_RESHAPE, &conf->mddev->recovery))  in r10buf_pool_alloc()
158 		nalloc = 2; /* recovery */  in r10buf_pool_alloc()
201 				   &conf->mddev->recovery)) {  in r10buf_pool_alloc()
502 					&rdev->mddev->recovery);  in raid10_end_write_request()
677 	 * or recovery, so reshape isn't happening  in raid10_find_virt()
918  * either some resync/recovery, or reconfigure the array.
1081 	if (!test_bit(MD_RECOVERY_RESHAPE, &rdev->mddev->recovery) ||  in choose_data_offset()
1131 	while (test_bit(MD_RECOVERY_RESHAPE, &mddev->recovery) &&  in regular_request_wait()
1365 	if (test_bit(MD_RECOVERY_RESHAPE, &mddev->recovery) &&  in raid10_write_request()
1603 	if (test_bit(MD_RECOVERY_RESHAPE, &mddev->recovery))  in raid10_handle_discard()
1612 	if (test_bit(MD_RECOVERY_RESHAPE, &mddev->recovery))  in raid10_handle_discard()
1982  *	- recovery is interrupted.
2006 	set_bit(MD_RECOVERY_INTR, &mddev->recovery);  in raid10_error()
2108 		/* only hot-add to in-sync arrays, as recovery is  in raid10_add_disk()
2185 	/* Only remove non-faulty devices if recovery  in raid10_remove_disk()
2261 			/* the primary of several recovery bios */  in end_sync_request()
2305 					&rdev->mddev->recovery);  in end_sync_write()
2394 			if (test_bit(MD_RECOVERY_CHECK, &mddev->recovery))  in sync_request_write()
2450  * Now for the recovery code.
2451  * Recovery happens across physical sectors.
2461 	/* We got a read error during recovery.  in fix_recovery_read_error()
2507 						&rdev->mddev->recovery);  in fix_recovery_read_error()
2523 					/* just abort the recovery */  in fix_recovery_read_error()
2524 					pr_notice("md/raid10:%s: recovery aborted due to read error\n",  in fix_recovery_read_error()
2528 						&mddev->recovery);  in fix_recovery_read_error()
2591 				&rdev->mddev->recovery);  in r10_sync_page_io()
3051 	if (test_bit(MD_RECOVERY_SYNC, &conf->mddev->recovery) ||  in raid10_alloc_init_r10buf()
3052 	    test_bit(MD_RECOVERY_RESHAPE, &conf->mddev->recovery))  in raid10_alloc_init_r10buf()
3055 		nalloc = 2; /* recovery */  in raid10_alloc_init_r10buf()
3118  * Resync and recovery are handled very differently.
3119  * We differentiate by looking at MD_RECOVERY_SYNC in mddev->recovery.
3124  * For recovery, we iterate over physical addresses, read a good
3127  * So, for recovery we may have several outstanding complex requests for a
3161 	    !test_bit(MD_RECOVERY_SYNC, &mddev->recovery) &&  in raid10_sync_request()
3162 	    !test_bit(MD_RECOVERY_REQUESTED, &mddev->recovery) &&  in raid10_sync_request()
3163 	    !test_bit(MD_RECOVERY_RESHAPE, &mddev->recovery) &&  in raid10_sync_request()
3182 		 * mddev->curr_resync, but for recovery,  in raid10_sync_request()
3186 		if (test_bit(MD_RECOVERY_RESHAPE, &mddev->recovery)) {  in raid10_sync_request()
3193 			if (test_bit(MD_RECOVERY_SYNC, &mddev->recovery))  in raid10_sync_request()
3206 			    && test_bit(MD_RECOVERY_SYNC, &mddev->recovery)) {  in raid10_sync_request()
3227 	if (test_bit(MD_RECOVERY_RESHAPE, &mddev->recovery))  in raid10_sync_request()
3247 	/* Again, very different code for resync and recovery.  in raid10_sync_request()
3251 	 * For recovery, we may actually create several r10bios  in raid10_sync_request()
3263 	if (!test_bit(MD_RECOVERY_SYNC, &mddev->recovery)) {  in raid10_sync_request()
3264 		/* recovery... the complicated one */  in raid10_sync_request()
3432 				/* Cannot recover, so abort the recovery or  in raid10_sync_request()
3453 					pr_warn("md/raid10:%s: cannot recovery sector %llu + %d.\n",  in raid10_sync_request()
3517 						 &mddev->recovery)) {  in raid10_sync_request()
3643 	    test_bit(MD_RECOVERY_SYNC, &mddev->recovery)) {  in raid10_sync_request()
3644 		/* It is resync not recovery */  in raid10_sync_request()
3654 		/* This is recovery not resync */  in raid10_sync_request()
3660 			 * sector_nr is a device address for recovery, so we  in raid10_sync_request()
4101 		clear_bit(MD_RECOVERY_SYNC, &mddev->recovery);  in raid10_run()
4102 		clear_bit(MD_RECOVERY_CHECK, &mddev->recovery);  in raid10_run()
4103 		set_bit(MD_RECOVERY_RESHAPE, &mddev->recovery);  in raid10_run()
4104 		set_bit(MD_RECOVERY_NEEDED, &mddev->recovery);  in raid10_run()
4172 		set_bit(MD_RECOVERY_NEEDED, &mddev->recovery);  in raid10_resize()
4367 	if (test_bit(MD_RECOVERY_RUNNING, &mddev->recovery))  in raid10_start_reshape()
4518 	clear_bit(MD_RECOVERY_SYNC, &mddev->recovery);  in raid10_start_reshape()
4519 	clear_bit(MD_RECOVERY_CHECK, &mddev->recovery);  in raid10_start_reshape()
4520 	clear_bit(MD_RECOVERY_DONE, &mddev->recovery);  in raid10_start_reshape()
4521 	set_bit(MD_RECOVERY_RESHAPE, &mddev->recovery);  in raid10_start_reshape()
4522 	set_bit(MD_RECOVERY_NEEDED, &mddev->recovery);  in raid10_start_reshape()
4528 	mddev->recovery = 0;  in raid10_start_reshape()
4715 			   test_bit(MD_RECOVERY_INTR, &mddev->recovery));  in reshape_request()
4716 		if (test_bit(MD_RECOVERY_INTR, &mddev->recovery)) {  in reshape_request()
4744 		set_bit(MD_RECOVERY_INTR, &mddev->recovery);  in reshape_request()
4905 	if (test_bit(MD_RECOVERY_INTR, &conf->mddev->recovery))  in end_reshape()
4954 		set_bit(MD_RECOVERY_INTR, &mddev->recovery);  in handle_reshape_read_error()
5001 				&mddev->recovery);  in handle_reshape_read_error()
5050 	if (test_bit(MD_RECOVERY_INTR, &mddev->recovery))  in raid10_finish_reshape()
5059 			set_bit(MD_RECOVERY_NEEDED, &mddev->recovery);  in raid10_finish_reshape()