btrfs: make extent_clear_unlock_delalloc take btrfs_inode

It has one VFS and 1 btrfs inode usages but converting it to btrfs_inode
interface will allow seamless conversion of its callers.
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

fs/btrfs/extent_io.c

@@ -2018,15 +2018,14 @@ static int __process_pages_contig(struct address_space *mapping,
 	return err;
 }
 
-void extent_clear_unlock_delalloc(struct inode *inode, u64 start, u64 end,
+void extent_clear_unlock_delalloc(struct btrfs_inode *inode, u64 start, u64 end,
 				  struct page *locked_page,
 				  unsigned clear_bits,
 				  unsigned long page_ops)
 {
-	clear_extent_bit(&BTRFS_I(inode)->io_tree, start, end, clear_bits, 1, 0,
-			 NULL);
+	clear_extent_bit(&inode->io_tree, start, end, clear_bits, 1, 0, NULL);
 
-	__process_pages_contig(inode->i_mapping, locked_page,
+	__process_pages_contig(inode->vfs_inode.i_mapping, locked_page,
 			       start >> PAGE_SHIFT, end >> PAGE_SHIFT,
 			       page_ops, NULL);
 }

fs/btrfs/extent_io.h

@@ -277,7 +277,7 @@ void clear_extent_buffer_uptodate(struct extent_buffer *eb);
 int extent_buffer_under_io(const struct extent_buffer *eb);
 void extent_range_clear_dirty_for_io(struct inode *inode, u64 start, u64 end);
 void extent_range_redirty_for_io(struct inode *inode, u64 start, u64 end);
-void extent_clear_unlock_delalloc(struct inode *inode, u64 start, u64 end,
+void extent_clear_unlock_delalloc(struct btrfs_inode *inode, u64 start, u64 end,
 				  struct page *locked_page,
 				  unsigned bits_to_clear,
 				  unsigned long page_ops);

fs/btrfs/inode.c

@@ -642,7 +642,8 @@ static noinline int compress_file_range(struct async_chunk *async_chunk)
 			 * our outstanding extent for clearing delalloc for this
 			 * range.
 			 */
-			extent_clear_unlock_delalloc(inode, start, end, NULL,
+			extent_clear_unlock_delalloc(BTRFS_I(inode), start, end,
+						     NULL,
 						     clear_flags,
 						     PAGE_UNLOCK |
 						     PAGE_CLEAR_DIRTY |
@@ -878,7 +879,7 @@ static noinline void submit_compressed_extents(struct async_chunk *async_chunk)
 		/*
 		 * clear dirty, set writeback and unlock the pages.
 		 */
-		extent_clear_unlock_delalloc(inode, async_extent->start,
+		extent_clear_unlock_delalloc(BTRFS_I(inode), async_extent->start,
 				async_extent->start +
 				async_extent->ram_size - 1,
 				NULL, EXTENT_LOCKED | EXTENT_DELALLOC,
@@ -900,7 +901,7 @@ static noinline void submit_compressed_extents(struct async_chunk *async_chunk)
 			btrfs_writepage_endio_finish_ordered(p, start, end, 0);
 
 			p->mapping = NULL;
-			extent_clear_unlock_delalloc(inode, start, end,
+			extent_clear_unlock_delalloc(BTRFS_I(inode), start, end,
 						     NULL, 0,
 						     PAGE_END_WRITEBACK |
 						     PAGE_SET_ERROR);
@@ -915,7 +916,7 @@ static noinline void submit_compressed_extents(struct async_chunk *async_chunk)
 	btrfs_dec_block_group_reservations(fs_info, ins.objectid);
 	btrfs_free_reserved_extent(fs_info, ins.objectid, ins.offset, 1);
 out_free:
-	extent_clear_unlock_delalloc(inode, async_extent->start,
+	extent_clear_unlock_delalloc(BTRFS_I(inode), async_extent->start,
 				     async_extent->start +
 				     async_extent->ram_size - 1,
 				     NULL, EXTENT_LOCKED | EXTENT_DELALLOC |
@@ -1017,7 +1018,8 @@ static noinline int cow_file_range(struct inode *inode,
 			 * our outstanding extent for clearing delalloc for this
 			 * range.
 			 */
-			extent_clear_unlock_delalloc(inode, start, end, NULL,
+			extent_clear_unlock_delalloc(BTRFS_I(inode), start, end,
+				     NULL,
 				     EXTENT_LOCKED | EXTENT_DELALLOC |
 				     EXTENT_DELALLOC_NEW | EXTENT_DEFRAG |
 				     EXTENT_DO_ACCOUNTING, PAGE_UNLOCK |
@@ -1115,7 +1117,7 @@ static noinline int cow_file_range(struct inode *inode,
 		page_ops = unlock ? PAGE_UNLOCK : 0;
 		page_ops |= PAGE_SET_PRIVATE2;
 
-		extent_clear_unlock_delalloc(inode, start,
+		extent_clear_unlock_delalloc(BTRFS_I(inode), start,
 					     start + ram_size - 1,
 					     locked_page,
 					     EXTENT_LOCKED | EXTENT_DELALLOC,
@@ -1160,7 +1162,7 @@ static noinline int cow_file_range(struct inode *inode,
 	 * it the flag EXTENT_CLEAR_DATA_RESV.
 	 */
 	if (extent_reserved) {
-		extent_clear_unlock_delalloc(inode, start,
+		extent_clear_unlock_delalloc(BTRFS_I(inode), start,
 					     start + cur_alloc_size - 1,
 					     locked_page,
 					     clear_bits,
@@ -1169,7 +1171,7 @@ static noinline int cow_file_range(struct inode *inode,
 		if (start >= end)
 			goto out;
 	}
-	extent_clear_unlock_delalloc(inode, start, end, locked_page,
+	extent_clear_unlock_delalloc(BTRFS_I(inode), start, end, locked_page,
 				     clear_bits | EXTENT_CLEAR_DATA_RESV,
 				     page_ops);
 	goto out;
@@ -1277,8 +1279,8 @@ static int cow_file_range_async(struct inode *inode,
 			PAGE_SET_WRITEBACK | PAGE_END_WRITEBACK |
 			PAGE_SET_ERROR;
 
-		extent_clear_unlock_delalloc(inode, start, end, locked_page,
-					     clear_bits, page_ops);
+		extent_clear_unlock_delalloc(BTRFS_I(inode), start, end,
+					     locked_page, clear_bits, page_ops);
 		return -ENOMEM;
 	}
 
@@ -1468,7 +1470,8 @@ static noinline int run_delalloc_nocow(struct inode *inode,
 
 	path = btrfs_alloc_path();
 	if (!path) {
-		extent_clear_unlock_delalloc(inode, start, end, locked_page,
+		extent_clear_unlock_delalloc(BTRFS_I(inode), start, end,
+					     locked_page,
 					     EXTENT_LOCKED | EXTENT_DELALLOC |
 					     EXTENT_DO_ACCOUNTING |
 					     EXTENT_DEFRAG, PAGE_UNLOCK |
@@ -1746,7 +1749,7 @@ static noinline int run_delalloc_nocow(struct inode *inode,
 			ret = btrfs_reloc_clone_csums(BTRFS_I(inode), cur_offset,
 						      num_bytes);
 
-		extent_clear_unlock_delalloc(inode, cur_offset,
+		extent_clear_unlock_delalloc(BTRFS_I(inode), cur_offset,
 					     cur_offset + num_bytes - 1,
 					     locked_page, EXTENT_LOCKED |
 					     EXTENT_DELALLOC |
@@ -1783,7 +1786,7 @@ static noinline int run_delalloc_nocow(struct inode *inode,
 		btrfs_dec_nocow_writers(fs_info, disk_bytenr);
 
 	if (ret && cur_offset < end)
-		extent_clear_unlock_delalloc(inode, cur_offset, end,
+		extent_clear_unlock_delalloc(BTRFS_I(inode), cur_offset, end,
 					     locked_page, EXTENT_LOCKED |
 					     EXTENT_DELALLOC | EXTENT_DEFRAG |
 					     EXTENT_DO_ACCOUNTING, PAGE_UNLOCK |