drivers/md/raid10.c

126  * When performing a recovery, we need 2 bios, one for read,
143 	if (test_bit(MD_RECOVERY_SYNC, &conf->mddev->recovery) ||
144 	    test_bit(MD_RECOVERY_RESHAPE, &conf->mddev->recovery))
147 		nalloc = 2; /* recovery */
190 				   &conf->mddev->recovery)) {
487 					&rdev->mddev->recovery);
663 	 * or recovery, so reshape isn't happening
904  * either some resync/recovery, or reconfigure the array.
1077 	if (!test_bit(MD_RECOVERY_RESHAPE, &rdev->mddev->recovery) ||
1130 	while (test_bit(MD_RECOVERY_RESHAPE, &mddev->recovery) &&
1377 	if (test_bit(MD_RECOVERY_RESHAPE, &mddev->recovery) &&
1600 	if (test_bit(MD_RECOVERY_RESHAPE, &mddev->recovery))
1613 	if (test_bit(MD_RECOVERY_RESHAPE, &mddev->recovery))
1953  *	- recovery is interrupted.
1977 	set_bit(MD_RECOVERY_INTR, &mddev->recovery);
2079 		/* only hot-add to in-sync arrays, as recovery is
2162 	/* Only remove non-faulty devices if recovery
2239 			/* the primary of several recovery bios */
2283 					&rdev->mddev->recovery);
2372 			if (test_bit(MD_RECOVERY_CHECK, &mddev->recovery))
2434  * Now for the recovery code.
2445 	/* We got a read error during recovery.
2491 						&rdev->mddev->recovery);
2507 					/* just abort the recovery */
2508 					pr_notice("md/raid10:%s: recovery aborted due to read error\n",
2514 						&mddev->recovery);
2580 				&rdev->mddev->recovery);
3052 	if (test_bit(MD_RECOVERY_SYNC, &conf->mddev->recovery) ||
3053 	    test_bit(MD_RECOVERY_RESHAPE, &conf->mddev->recovery))
3056 		nalloc = 2; /* recovery */
3119  * Resync and recovery are handled very differently.
3120  * We differentiate by looking at MD_RECOVERY_SYNC in mddev->recovery.
3125  * For recovery, we iterate over physical addresses, read a good
3128  * So, for recovery we may have several outstanding complex requests for a
3165 	    !test_bit(MD_RECOVERY_SYNC, &mddev->recovery) &&
3166 	    !test_bit(MD_RECOVERY_REQUESTED, &mddev->recovery) &&
3167 	    !test_bit(MD_RECOVERY_RESHAPE, &mddev->recovery) &&
3179 	if (test_bit(MD_RECOVERY_SYNC, &mddev->recovery) ||
3180 	    test_bit(MD_RECOVERY_RESHAPE, &mddev->recovery))
3191 		 * mddev->curr_resync, but for recovery,
3195 		if (test_bit(MD_RECOVERY_RESHAPE, &mddev->recovery)) {
3202 			if (test_bit(MD_RECOVERY_SYNC, &mddev->recovery))
3215 			    && test_bit(MD_RECOVERY_SYNC, &mddev->recovery)) {
3235 	if (test_bit(MD_RECOVERY_RESHAPE, &mddev->recovery))
3240 			test_bit(MD_RECOVERY_SYNC, &mddev->recovery) ?  "resync" : "recovery");
3242 		    !test_bit(MD_RECOVERY_SYNC, &mddev->recovery)) {
3244 			 * recovery fails, set mirrors.recovery_disabled,
3276 	/* Again, very different code for resync and recovery.
3280 	 * For recovery, we may actually create several r10bios
3292 	if (!test_bit(MD_RECOVERY_SYNC, &mddev->recovery)) {
3293 		/* recovery... the complicated one */
3463 				/* Cannot recover, so abort the recovery or
3489 							      &mddev->recovery))
3490 						pr_warn("md/raid10:%s: insufficient working devices for recovery.\n",
3556 						 &mddev->recovery)) {
3681 	    test_bit(MD_RECOVERY_SYNC, &mddev->recovery)) {
3682 		/* It is resync not recovery */
3692 		/* This is recovery not resync */
3698 			 * sector_nr is a device address for recovery, so we
4149 		clear_bit(MD_RECOVERY_SYNC, &mddev->recovery);
4150 		clear_bit(MD_RECOVERY_CHECK, &mddev->recovery);
4151 		set_bit(MD_RECOVERY_RESHAPE, &mddev->recovery);
4152 		set_bit(MD_RECOVERY_NEEDED, &mddev->recovery);
4217 		set_bit(MD_RECOVERY_NEEDED, &mddev->recovery);
4408 	if (test_bit(MD_RECOVERY_RUNNING, &mddev->recovery))
4542 	clear_bit(MD_RECOVERY_SYNC, &mddev->recovery);
4543 	clear_bit(MD_RECOVERY_CHECK, &mddev->recovery);
4544 	clear_bit(MD_RECOVERY_DONE, &mddev->recovery);
4545 	set_bit(MD_RECOVERY_RESHAPE, &mddev->recovery);
4546 	set_bit(MD_RECOVERY_NEEDED, &mddev->recovery);
4552 	mddev->recovery = 0;
4731 			   test_bit(MD_RECOVERY_INTR, &mddev->recovery));
4732 		if (test_bit(MD_RECOVERY_INTR, &mddev->recovery)) {
4760 		set_bit(MD_RECOVERY_INTR, &mddev->recovery);
4920 	if (test_bit(MD_RECOVERY_INTR, &conf->mddev->recovery))
4961 		set_bit(MD_RECOVERY_INTR, &mddev->recovery);
5008 				&mddev->recovery);
5055 	if (test_bit(MD_RECOVERY_INTR, &mddev->recovery))
5061 			set_bit(MD_RECOVERY_NEEDED, &mddev->recovery);