fs/btrfs/raid56.c

275 	const int sector_nr = (page_nr << PAGE_SHIFT) >>
285 	return (sector_nr < rbio->nr_data * rbio->stripe_nsectors);
594 					     unsigned int sector_nr)
597 	ASSERT(sector_nr < rbio->stripe_nsectors);
599 	return stripe_nr * rbio->stripe_nsectors + sector_nr;
605 					     unsigned int sector_nr)
608 							      sector_nr)];
613 					      unsigned int sector_nr)
615 	return rbio_stripe_sector(rbio, rbio->nr_data, sector_nr);
620 					      unsigned int sector_nr)
624 	return rbio_stripe_sector(rbio, rbio->nr_data + 1, sector_nr);
859  * Get a sector pointer specified by its @stripe_nr and @sector_nr.
863  * @sector_nr:		Sector number inside the stripe,
871 					 int stripe_nr, int sector_nr,
878 	ASSERT(sector_nr >= 0 && sector_nr < rbio->stripe_nsectors);
880 	index = stripe_nr * rbio->stripe_nsectors + sector_nr;
998  * Return the total number of errors found in the vertical stripe of @sector_nr.
1003 static int get_rbio_veritical_errors(struct btrfs_raid_bio *rbio, int sector_nr,
1020 		int total_sector_nr = stripe_nr * rbio->stripe_nsectors + sector_nr;
1046 			      unsigned int sector_nr,
1062 	ASSERT(sector_nr >= 0 && sector_nr < rbio->stripe_nsectors);
1066 	disk_start = stripe->physical + sector_nr * sectorsize;
1072 		set_bit(stripe_nr * rbio->stripe_nsectors + sector_nr,
1076 		found_errors = get_rbio_veritical_errors(rbio, sector_nr,
1706 			     int stripe_nr, int sector_nr)
1725 		sector = sector_in_rbio(rbio, stripe_nr, sector_nr, 0);
1727 		sector = rbio_stripe_sector(rbio, stripe_nr, sector_nr);
1733 			(stripe_nr * rbio->stripe_nsectors + sector_nr) *
1741  * Recover a vertical stripe specified by @sector_nr.
1745 static int recover_vertical(struct btrfs_raid_bio *rbio, int sector_nr,
1762 	    !test_bit(sector_nr, &rbio->dbitmap))
1765 	found_errors = get_rbio_veritical_errors(rbio, sector_nr, &faila,
1789 			sector = sector_in_rbio(rbio, stripe_nr, sector_nr, 0);
1791 			sector = rbio_stripe_sector(rbio, stripe_nr, sector_nr);
1879 		ret = verify_one_sector(rbio, faila, sector_nr);
1883 		sector = rbio_stripe_sector(rbio, faila, sector_nr);
1887 		ret = verify_one_sector(rbio, failb, sector_nr);
1891 		sector = rbio_stripe_sector(rbio, failb, sector_nr);
2021 	int sector_nr;
2030 	for (sector_nr = 0; sector_nr < rbio->stripe_nsectors; sector_nr++) {
2035 		found_errors = get_rbio_veritical_errors(rbio, sector_nr,
2055 			set_bit(failb * rbio->stripe_nsectors + sector_nr,
2591 	int sector_nr;
2607 	for (sector_nr = 0; sector_nr < rbio->stripe_nsectors; sector_nr++) {
2613 		found_errors = get_rbio_veritical_errors(rbio, sector_nr,
2661 		ret = recover_vertical(rbio, sector_nr, pointers, unmap_array);
2719 	int sector_nr;
2743 	for (sector_nr = 0; sector_nr < rbio->stripe_nsectors; sector_nr++) {
2746 		found_errors = get_rbio_veritical_errors(rbio, sector_nr, NULL, NULL);
2805 		for (int sector_nr = sectors_per_page * page_index;
2806 		     sector_nr < sectors_per_page * (page_index + 1);
2807 		     sector_nr++)
2808 			rbio->stripe_sectors[sector_nr].uptodate = true;