diff options
Diffstat (limited to 'fs/btrfs/file-item.c')
| -rw-r--r-- | fs/btrfs/file-item.c | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/fs/btrfs/file-item.c b/fs/btrfs/file-item.c index cccc75d15970..6fccac9eab96 100644 --- a/fs/btrfs/file-item.c +++ b/fs/btrfs/file-item.c @@ -458,8 +458,6 @@ blk_status_t btrfs_csum_one_bio(struct inode *inode, struct bio *bio, BUG_ON(!ordered); /* Logic error */ } - data = kmap_atomic(bvec.bv_page); - nr_sectors = BTRFS_BYTES_TO_BLKS(fs_info, bvec.bv_len + fs_info->sectorsize - 1); @@ -469,7 +467,6 @@ blk_status_t btrfs_csum_one_bio(struct inode *inode, struct bio *bio, offset < ordered->file_offset) { unsigned long bytes_left; - kunmap_atomic(data); sums->len = this_sum_bytes; this_sum_bytes = 0; btrfs_add_ordered_sum(inode, ordered, sums); @@ -489,16 +486,16 @@ blk_status_t btrfs_csum_one_bio(struct inode *inode, struct bio *bio, sums->bytenr = ((u64)bio->bi_iter.bi_sector << 9) + total_bytes; index = 0; - - data = kmap_atomic(bvec.bv_page); } sums->sums[index] = ~(u32)0; + data = kmap_atomic(bvec.bv_page); sums->sums[index] = btrfs_csum_data(data + bvec.bv_offset + (i * fs_info->sectorsize), sums->sums[index], fs_info->sectorsize); + kunmap_atomic(data); btrfs_csum_final(sums->sums[index], (char *)(sums->sums + index)); index++; @@ -507,7 +504,6 @@ blk_status_t btrfs_csum_one_bio(struct inode *inode, struct bio *bio, total_bytes += fs_info->sectorsize; } - kunmap_atomic(data); } this_sum_bytes = 0; btrfs_add_ordered_sum(inode, ordered, sums); |