btrfs: use btrfs_inode inside btrfs_verify_data_csum

The function is mostly using internal interfaces so we should use the
btrfs_inode.

Reviewed-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 28725dd..d3e5a5f 100644 (file)
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -3529,10 +3529,10 @@ unsigned int btrfs_verify_data_csum(struct btrfs_bio *bbio,
                                    u32 bio_offset, struct page *page,
                                    u64 start, u64 end)
 {
-       struct inode *inode = page->mapping->host;
-       struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
-       struct extent_io_tree *io_tree = &BTRFS_I(inode)->io_tree;
-       struct btrfs_root *root = BTRFS_I(inode)->root;
+       struct btrfs_inode *inode = BTRFS_I(page->mapping->host);
+       struct btrfs_root *root = inode->root;
+       struct btrfs_fs_info *fs_info = root->fs_info;
+       struct extent_io_tree *io_tree = &inode->io_tree;
        const u32 sectorsize = root->fs_info->sectorsize;
        u32 pg_off;
        unsigned int result = 0;
@@ -3545,7 +3545,7 @@ unsigned int btrfs_verify_data_csum(struct btrfs_bio *bbio,
        if (bbio->csum == NULL)
                return 0;
 
-       if (BTRFS_I(inode)->flags & BTRFS_INODE_NODATASUM)
+       if (inode->flags & BTRFS_INODE_NODATASUM)
                return 0;
 
        if (unlikely(test_bit(BTRFS_FS_STATE_NO_CSUMS, &fs_info->fs_state)))
@@ -3569,7 +3569,7 @@ unsigned int btrfs_verify_data_csum(struct btrfs_bio *bbio,
                                          EXTENT_NODATASUM);
                        continue;
                }
-               ret = btrfs_check_data_csum(BTRFS_I(inode), bbio, bio_offset, page, pg_off);
+               ret = btrfs_check_data_csum(inode, bbio, bio_offset, page, pg_off);
                if (ret < 0) {
                        const int nr_bit = (pg_off - offset_in_page(start)) >>
                                     root->fs_info->sectorsize_bits;