[Cluster-devel] [PATCH v2 05/14] gfs2: Support ludicrously large folios in gfs2_trans_add_databufs()

[Matthew Wilcox (Oracle) <willy@infradead.org>]

We may someday support folios larger than 4GB, so use a size_t for
the byte count within a folio to prevent unpleasant truncations.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Tested-by: Bob Peterson <rpeterso@redhat.com>
Reviewed-by: Bob Peterson <rpeterso@redhat.com>
---
 fs/gfs2/aops.c | 6 +++---
 fs/gfs2/aops.h | 2 +-
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/fs/gfs2/aops.c b/fs/gfs2/aops.c
index 3a2be1901e1e..1c407eba1e30 100644
--- a/fs/gfs2/aops.c
+++ b/fs/gfs2/aops.c
@@ -38,13 +38,13 @@
 
 
 void gfs2_trans_add_databufs(struct gfs2_inode *ip, struct folio *folio,
-			     unsigned int from, unsigned int len)
+			     size_t from, size_t len)
 {
 	struct buffer_head *head = folio_buffers(folio);
 	unsigned int bsize = head->b_size;
 	struct buffer_head *bh;
-	unsigned int to = from + len;
-	unsigned int start, end;
+	size_t to = from + len;
+	size_t start, end;
 
 	for (bh = head, start = 0; bh != head || !start;
 	     bh = bh->b_this_page, start = end) {
diff --git a/fs/gfs2/aops.h b/fs/gfs2/aops.h
index 09db1914425e..f08322ef41cf 100644
--- a/fs/gfs2/aops.h
+++ b/fs/gfs2/aops.h
@@ -10,6 +10,6 @@
 
 extern void adjust_fs_space(struct inode *inode);
 extern void gfs2_trans_add_databufs(struct gfs2_inode *ip, struct folio *folio,
-				    unsigned int from, unsigned int len);
+				    size_t from, size_t len);
 
 #endif /* __AOPS_DOT_H__ */
-- 
2.39.2