netfs_advance_write() calculates the amount of data it's attaching to a
stream with size_t, but then returns this as an int.  Switch the return
value to size_t for consistency.

Signed-off-by: David Howells <dhowells@redhat.com>
cc: Jeff Layton <jlayton@kernel.org>
cc: linux-cachefs@redhat.com
cc: linux-fsdevel@vger.kernel.org
cc: linux-mm@kvack.org
---
 fs/netfs/internal.h    | 6 +++---
 fs/netfs/write_issue.c | 6 +++---
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/fs/netfs/internal.h b/fs/netfs/internal.h
index ccd9058acb61..6aa2a8d49b37 100644
--- a/fs/netfs/internal.h
+++ b/fs/netfs/internal.h
@@ -178,9 +178,9 @@ void netfs_reissue_write(struct netfs_io_stream *stream,
 			 struct iov_iter *source);
 void netfs_issue_write(struct netfs_io_request *wreq,
 		       struct netfs_io_stream *stream);
-int netfs_advance_write(struct netfs_io_request *wreq,
-			struct netfs_io_stream *stream,
-			loff_t start, size_t len, bool to_eof);
+size_t netfs_advance_write(struct netfs_io_request *wreq,
+			   struct netfs_io_stream *stream,
+			   loff_t start, size_t len, bool to_eof);
 struct netfs_io_request *netfs_begin_writethrough(struct kiocb *iocb, size_t len);
 int netfs_advance_writethrough(struct netfs_io_request *wreq, struct writeback_control *wbc,
 			       struct folio *folio, size_t copied, bool to_page_end,
diff --git a/fs/netfs/write_issue.c b/fs/netfs/write_issue.c
index 993cc6def38e..c186221b45c0 100644
--- a/fs/netfs/write_issue.c
+++ b/fs/netfs/write_issue.c
@@ -271,9 +271,9 @@ void netfs_issue_write(struct netfs_io_request *wreq,
  * we can avoid overrunning the credits obtained (cifs) and try to parallelise
  * content-crypto preparation with network writes.
  */
-int netfs_advance_write(struct netfs_io_request *wreq,
-			struct netfs_io_stream *stream,
-			loff_t start, size_t len, bool to_eof)
+size_t netfs_advance_write(struct netfs_io_request *wreq,
+			   struct netfs_io_stream *stream,
+			   loff_t start, size_t len, bool to_eof)
 {
 	struct netfs_io_subrequest *subreq = stream->construct;
 	size_t part;