btrfs: remove the second argument of k[un]map_atomic()

Signed-off-by: Cong Wang <amwang@redhat.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/fs/btrfs/file-item.c b/fs/btrfs/file-item.c
index c7fb3a4247d3..078b4fd54500 100644
--- a/fs/btrfs/file-item.c
+++ b/fs/btrfs/file-item.c
@@ -447,13 +447,13 @@ int btrfs_csum_one_bio(struct btrfs_root *root, struct inode *inode,
                         sums->bytenr = ordered->start;
                 }
 
-                data = kmap_atomic(bvec->bv_page, KM_USER0);
+                data = kmap_atomic(bvec->bv_page);
                 sector_sum->sum = ~(u32)0;
                 sector_sum->sum = btrfs_csum_data(root,
                                                   data + bvec->bv_offset,
                                                   sector_sum->sum,
                                                   bvec->bv_len);
-                kunmap_atomic(data, KM_USER0);
+                kunmap_atomic(data);
                 btrfs_csum_final(sector_sum->sum,
                                  (char *)&sector_sum->sum);
                 sector_sum->bytenr = disk_bytenr;