diff options
Diffstat (limited to 'fs/btrfs/file-item.c')
| -rw-r--r-- | fs/btrfs/file-item.c | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/fs/btrfs/file-item.c b/fs/btrfs/file-item.c index b7f5394c37a1..b670014bfc1c 100644 --- a/fs/btrfs/file-item.c +++ b/fs/btrfs/file-item.c @@ -152,17 +152,15 @@ int btrfs_lookup_file_extent(struct btrfs_trans_handle *trans, * btrfs_lookup_bio_sums - Look up checksums for a bio. * @inode: inode that the bio is for. * @bio: bio embedded in btrfs_io_bio. - * @at_offset: If true, look up checksums for the extent at @offset. - * If false, use the page offsets from the bio. - * @offset: If @at_offset is true, offset in file to look up checksums for. - * Ignored otherwise. + * @offset: Unless (u64)-1, look up checksums for this offset in the file. + * If (u64)-1, use the page offsets from the bio instead. * @dst: Buffer of size btrfs_super_csum_size() used to return checksum. If * NULL, the checksum is returned in btrfs_io_bio(bio)->csum instead. * * Return: BLK_STS_RESOURCE if allocating memory fails, BLK_STS_OK otherwise. */ blk_status_t btrfs_lookup_bio_sums(struct inode *inode, struct bio *bio, - bool at_offset, u64 offset, u8 *dst) + u64 offset, u8 *dst) { struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct bio_vec bvec; @@ -171,6 +169,7 @@ blk_status_t btrfs_lookup_bio_sums(struct inode *inode, struct bio *bio, struct btrfs_csum_item *item = NULL; struct extent_io_tree *io_tree = &BTRFS_I(inode)->io_tree; struct btrfs_path *path; + const bool page_offsets = (offset == (u64)-1); u8 *csum; u64 item_start_offset = 0; u64 item_last_offset = 0; @@ -223,7 +222,7 @@ blk_status_t btrfs_lookup_bio_sums(struct inode *inode, struct bio *bio, if (count) goto next; - if (!at_offset) + if (page_offsets) offset = page_offset(bvec.bv_page) + bvec.bv_offset; count = btrfs_find_ordered_sum(inode, offset, disk_bytenr, csum, nblocks); |