[Cluster-devel] [PATCH v3 05/14] gfs2: Support ludicrously large folios in gfs2_trans_add_databufs()
Matthew Wilcox (Oracle)
willy at infradead.org
Mon Jun 12 21:01:32 UTC 2023
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 at infradead.org>
Tested-by: Bob Peterson <rpeterso at redhat.com>
Reviewed-by: Bob Peterson <rpeterso at 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
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