4 files changed, 4 insertions, 6 deletions
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index b306b3a88fc..e7e7afb4a87 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -2643,8 +2643,7 @@ static int submit_extent_page(int rw, struct extent_io_tree *tree,
 		if (old_compressed)
 			contig = bio->bi_sector == sector;
 		else
-			contig = bio->bi_sector + (bio->bi_size >> 9) ==
-				sector;
+			contig = bio_end_sector(bio) == sector;
 
 		if (prev_bio_flags != bio_flags || !contig ||
 		    merge_bio(rw, tree, page, offset, page_size, bio, bio_flags) ||
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index b3e359bc8e6..4205ba752d4 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -24,6 +24,7 @@
 #include <linux/string.h>
 #include <linux/backing-dev.h>
 #include <linux/mpage.h>
+#include <linux/aio.h>
 #include <linux/falloc.h>
 #include <linux/swap.h>
 #include <linux/writeback.h>
@@ -1517,8 +1518,6 @@ static ssize_t btrfs_file_aio_write(struct kiocb *iocb,
 	size_t count, ocount;
 	bool sync = (file->f_flags & O_DSYNC) || IS_SYNC(file->f_mapping->host);
 
-	sb_start_write(inode->i_sb);
-
 	mutex_lock(&inode->i_mutex);
 
 	err = generic_segment_checks(iov, &nr_segs, &ocount, VERIFY_READ);
@@ -1620,7 +1619,6 @@ static ssize_t btrfs_file_aio_write(struct kiocb *iocb,
 	if (sync)
 		atomic_dec(&BTRFS_I(inode)->sync_writers);
 out:
-	sb_end_write(inode->i_sb);
 	current->backing_dev_info = NULL;
 	return num_written ? num_written : err;
 }
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index c931a4dbd03..17f3064b4a3 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -32,6 +32,7 @@
 #include <linux/writeback.h>
 #include <linux/statfs.h>
 #include <linux/compat.h>
+#include <linux/aio.h>
 #include <linux/bit_spinlock.h>
 #include <linux/xattr.h>
 #include <linux/posix_acl.h>
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 24940085cda..8bffb9174af 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -5164,7 +5164,7 @@ static int bio_size_ok(struct block_device *bdev, struct bio *bio,
 	}
 
 	prev = &bio->bi_io_vec[bio->bi_vcnt - 1];
-	if ((bio->bi_size >> 9) > max_sectors)
+	if (bio_sectors(bio) > max_sectors)
 		return 0;
 
 	if (!q->merge_bvec_fn)