diff options
| -rw-r--r-- | fs/btrfs/raid56.c | 26 |
1 files changed, 18 insertions, 8 deletions
diff --git a/fs/btrfs/raid56.c b/fs/btrfs/raid56.c index 1a89cdb80fe4..7bc43f1861e6 100644 --- a/fs/btrfs/raid56.c +++ b/fs/btrfs/raid56.c @@ -1620,9 +1620,9 @@ static int get_bio_sector_nr(struct btrfs_raid_bio *rbio, struct bio *bio) int i; for (i = 0; i < rbio->nr_sectors; i++) { - if (rbio->stripe_paddrs[i] == bvec_paddr) + if (rbio->stripe_paddrs[i * rbio->sector_nsteps] == bvec_paddr) break; - if (rbio->bio_paddrs[i] == bvec_paddr) + if (rbio->bio_paddrs[i * rbio->sector_nsteps] == bvec_paddr) break; } ASSERT(i < rbio->nr_sectors); @@ -1655,7 +1655,11 @@ static void verify_bio_data_sectors(struct btrfs_raid_bio *rbio, struct bio *bio) { struct btrfs_fs_info *fs_info = rbio->bioc->fs_info; + const u32 step = min(fs_info->sectorsize, PAGE_SIZE); + const u32 nr_steps = rbio->sector_nsteps; int total_sector_nr = get_bio_sector_nr(rbio, bio); + u32 offset = 0; + phys_addr_t paddrs[BTRFS_MAX_BLOCKSIZE / PAGE_SIZE]; phys_addr_t paddr; /* No data csum for the whole stripe, no need to verify. */ @@ -1666,18 +1670,24 @@ static void verify_bio_data_sectors(struct btrfs_raid_bio *rbio, if (total_sector_nr >= rbio->nr_data * rbio->stripe_nsectors) return; - btrfs_bio_for_each_block_all(paddr, bio, fs_info->sectorsize) { + btrfs_bio_for_each_block_all(paddr, bio, step) { u8 csum_buf[BTRFS_CSUM_SIZE]; - u8 *expected_csum = rbio->csum_buf + total_sector_nr * fs_info->csum_size; - int ret; + u8 *expected_csum; + + paddrs[(offset / step) % nr_steps] = paddr; + offset += step; + + /* Not yet covering the full fs block, continue to the next step. */ + if (!IS_ALIGNED(offset, fs_info->sectorsize)) + continue; /* No csum for this sector, skip to the next sector. */ if (!test_bit(total_sector_nr, rbio->csum_bitmap)) continue; - ret = btrfs_check_block_csum(fs_info, paddr, - csum_buf, expected_csum); - if (ret < 0) + expected_csum = rbio->csum_buf + total_sector_nr * fs_info->csum_size; + btrfs_calculate_block_csum_pages(fs_info, paddrs, csum_buf); + if (unlikely(memcmp(csum_buf, expected_csum, fs_info->csum_size) != 0)) set_bit(total_sector_nr, rbio->error_bitmap); total_sector_nr++; } |