btrfs: pass btrfs_inode to btrfs_inode_lock

The function is for 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>

fs/btrfs/btrfs_inode.h

@@ -545,7 +545,7 @@ enum btrfs_ilock_type {
 	ENUM_BIT(BTRFS_ILOCK_MMAP),
 };
 
-int btrfs_inode_lock(struct inode *inode, unsigned int ilock_flags);
+int btrfs_inode_lock(struct btrfs_inode *inode, unsigned int ilock_flags);
 void btrfs_inode_unlock(struct inode *inode, unsigned int ilock_flags);
 void btrfs_update_inode_bytes(struct btrfs_inode *inode, const u64 add_bytes,
 			      const u64 del_bytes);

fs/btrfs/defrag.c

@@ -1295,7 +1295,7 @@ int btrfs_defrag_file(struct inode *inode, struct file_ra_state *ra,
 			       (SZ_256K >> PAGE_SHIFT)) << PAGE_SHIFT) - 1;
 		cluster_end = min(cluster_end, last_byte);
 
-		btrfs_inode_lock(inode, 0);
+		btrfs_inode_lock(BTRFS_I(inode), 0);
 		if (IS_SWAPFILE(inode)) {
 			ret = -ETXTBSY;
 			btrfs_inode_unlock(inode, 0);
@@ -1351,7 +1351,7 @@ int btrfs_defrag_file(struct inode *inode, struct file_ra_state *ra,
 		ret = sectors_defragged;
 	}
 	if (do_compress) {
-		btrfs_inode_lock(inode, 0);
+		btrfs_inode_lock(BTRFS_I(inode), 0);
 		BTRFS_I(inode)->defrag_compress = BTRFS_COMPRESS_NONE;
 		btrfs_inode_unlock(inode, 0);
 	}

fs/btrfs/delayed-inode.c

@@ -1647,7 +1647,7 @@ bool btrfs_readdir_get_delayed_items(struct inode *inode,
 	 * item->readdir_list.
 	 */
 	btrfs_inode_unlock(inode, BTRFS_ILOCK_SHARED);
-	btrfs_inode_lock(inode, 0);
+	btrfs_inode_lock(BTRFS_I(inode), 0);
 
 	mutex_lock(&delayed_node->mutex);
 	item = __btrfs_first_delayed_insertion_item(delayed_node);

fs/btrfs/file.c

@@ -1193,7 +1193,7 @@ static noinline ssize_t btrfs_buffered_write(struct kiocb *iocb,
 	if (nowait)
 		ilock_flags |= BTRFS_ILOCK_TRY;
 
-	ret = btrfs_inode_lock(inode, ilock_flags);
+	ret = btrfs_inode_lock(BTRFS_I(inode), ilock_flags);
 	if (ret < 0)
 		return ret;
 
@@ -1468,7 +1468,7 @@ static ssize_t btrfs_direct_write(struct kiocb *iocb, struct iov_iter *from)
 		ilock_flags |= BTRFS_ILOCK_SHARED;
 
 relock:
-	err = btrfs_inode_lock(inode, ilock_flags);
+	err = btrfs_inode_lock(BTRFS_I(inode), ilock_flags);
 	if (err < 0)
 		return err;
 
@@ -1616,7 +1616,7 @@ static ssize_t btrfs_encoded_write(struct kiocb *iocb, struct iov_iter *from,
 	loff_t count;
 	ssize_t ret;
 
-	btrfs_inode_lock(inode, 0);
+	btrfs_inode_lock(BTRFS_I(inode), 0);
 	count = encoded->len;
 	ret = generic_write_checks_count(iocb, &count);
 	if (ret == 0 && count != encoded->len) {
@@ -1806,7 +1806,7 @@ int btrfs_sync_file(struct file *file, loff_t start, loff_t end, int datasync)
 	if (ret)
 		goto out;
 
-	btrfs_inode_lock(inode, BTRFS_ILOCK_MMAP);
+	btrfs_inode_lock(BTRFS_I(inode), BTRFS_ILOCK_MMAP);
 
 	atomic_inc(&root->log_batch);
 
@@ -2596,7 +2596,7 @@ static int btrfs_punch_hole(struct file *file, loff_t offset, loff_t len)
 	bool truncated_block = false;
 	bool updated_inode = false;
 
-	btrfs_inode_lock(inode, BTRFS_ILOCK_MMAP);
+	btrfs_inode_lock(BTRFS_I(inode), BTRFS_ILOCK_MMAP);
 
 	ret = btrfs_wait_ordered_range(inode, offset, len);
 	if (ret)
@@ -3054,7 +3054,7 @@ static long btrfs_fallocate(struct file *file, int mode,
 	if (mode & FALLOC_FL_PUNCH_HOLE)
 		return btrfs_punch_hole(file, offset, len);
 
-	btrfs_inode_lock(inode, BTRFS_ILOCK_MMAP);
+	btrfs_inode_lock(BTRFS_I(inode), BTRFS_ILOCK_MMAP);
 
 	if (!(mode & FALLOC_FL_KEEP_SIZE) && offset + len > inode->i_size) {
 		ret = inode_newsize_ok(inode, offset + len);
@@ -3691,7 +3691,7 @@ static loff_t btrfs_file_llseek(struct file *file, loff_t offset, int whence)
 		return generic_file_llseek(file, offset, whence);
 	case SEEK_DATA:
 	case SEEK_HOLE:
-		btrfs_inode_lock(inode, BTRFS_ILOCK_SHARED);
+		btrfs_inode_lock(BTRFS_I(inode), BTRFS_ILOCK_SHARED);
 		offset = find_desired_extent(BTRFS_I(inode), offset, whence);
 		btrfs_inode_unlock(inode, BTRFS_ILOCK_SHARED);
 		break;
@@ -3748,7 +3748,7 @@ static ssize_t btrfs_direct_read(struct kiocb *iocb, struct iov_iter *to)
 	if (check_direct_read(btrfs_sb(inode->i_sb), to, iocb->ki_pos))
 		return 0;
 
-	btrfs_inode_lock(inode, BTRFS_ILOCK_SHARED);
+	btrfs_inode_lock(BTRFS_I(inode), BTRFS_ILOCK_SHARED);
 again:
 	/*
 	 * This is similar to what we do for direct IO writes, see the comment

fs/btrfs/inode.c

@@ -172,27 +172,27 @@ static void __cold btrfs_print_data_csum_error(struct btrfs_inode *inode,
  *		     return -EAGAIN
  * BTRFS_ILOCK_MMAP - acquire a write lock on the i_mmap_lock
  */
-int btrfs_inode_lock(struct inode *inode, unsigned int ilock_flags)
+int btrfs_inode_lock(struct btrfs_inode *inode, unsigned int ilock_flags)
 {
 	if (ilock_flags & BTRFS_ILOCK_SHARED) {
 		if (ilock_flags & BTRFS_ILOCK_TRY) {
-			if (!inode_trylock_shared(inode))
+			if (!inode_trylock_shared(&inode->vfs_inode))
 				return -EAGAIN;
 			else
 				return 0;
 		}
-		inode_lock_shared(inode);
+		inode_lock_shared(&inode->vfs_inode);
 	} else {
 		if (ilock_flags & BTRFS_ILOCK_TRY) {
-			if (!inode_trylock(inode))
+			if (!inode_trylock(&inode->vfs_inode))
 				return -EAGAIN;
 			else
 				return 0;
 		}
-		inode_lock(inode);
+		inode_lock(&inode->vfs_inode);
 	}
 	if (ilock_flags & BTRFS_ILOCK_MMAP)
-		down_write(&BTRFS_I(inode)->i_mmap_lock);
+		down_write(&inode->i_mmap_lock);
 	return 0;
 }
 
@@ -10529,7 +10529,7 @@ ssize_t btrfs_encoded_read(struct kiocb *iocb, struct iov_iter *iter,
 
 	file_accessed(iocb->ki_filp);
 
-	btrfs_inode_lock(&inode->vfs_inode, BTRFS_ILOCK_SHARED);
+	btrfs_inode_lock(inode, BTRFS_ILOCK_SHARED);
 
 	if (iocb->ki_pos >= inode->vfs_inode.i_size) {
 		btrfs_inode_unlock(&inode->vfs_inode, BTRFS_ILOCK_SHARED);

fs/btrfs/ioctl.c

@@ -2528,7 +2528,7 @@ static noinline int btrfs_ioctl_snap_destroy(struct file *file,
 		goto out_dput;
 	}
 
-	btrfs_inode_lock(inode, 0);
+	btrfs_inode_lock(BTRFS_I(inode), 0);
 	err = btrfs_delete_subvolume(dir, dentry);
 	btrfs_inode_unlock(inode, 0);
 	if (!err)

fs/btrfs/reflink.c

@@ -893,7 +893,7 @@ loff_t btrfs_remap_file_range(struct file *src_file, loff_t off,
 		return -EINVAL;
 
 	if (same_inode) {
-		btrfs_inode_lock(src_inode, BTRFS_ILOCK_MMAP);
+		btrfs_inode_lock(BTRFS_I(src_inode), BTRFS_ILOCK_MMAP);
 	} else {
 		lock_two_nondirectories(src_inode, dst_inode);
 		btrfs_double_mmap_lock(src_inode, dst_inode);

fs/btrfs/relocation.c

@@ -2874,7 +2874,7 @@ static noinline_for_stack int prealloc_file_extent_cluster(
 	if (ret)
 		return ret;
 
-	btrfs_inode_lock(&inode->vfs_inode, 0);
+	btrfs_inode_lock(inode, 0);
 	for (nr = 0; nr < cluster->nr; nr++) {
 		struct extent_state *cached_state = NULL;