From: Matthew Wilcox (Oracle) <willy@infradead.org>
Date: Wed, 5 Mar 2025 20:47:25 +0000 (+0000)
Subject: orangefs: Do not truncate file size
X-Git-Tag: v5.10.238~109
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=341e3a5984cf5761f3dab16029d7e9fb1641d5ff;p=thirdparty%2Fkernel%2Fstable.git

orangefs: Do not truncate file size

[ Upstream commit 062e8093592fb866b8e016641a8b27feb6ac509d ]

'len' is used to store the result of i_size_read(), so making 'len'
a size_t results in truncation to 4GiB on 32-bit systems.

Signed-off-by: "Matthew Wilcox (Oracle)" <willy@infradead.org>
Link: https://lore.kernel.org/r/20250305204734.1475264-2-willy@infradead.org
Tested-by: Mike Marshall <hubcap@omnibond.com>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/fs/orangefs/inode.c b/fs/orangefs/inode.c
index 48f0547d4850e..cd70ded309e47 100644
--- a/fs/orangefs/inode.c
+++ b/fs/orangefs/inode.c
@@ -22,9 +22,9 @@ static int orangefs_writepage_locked(struct page *page,
 	struct orangefs_write_range *wr = NULL;
 	struct iov_iter iter;
 	struct bio_vec bv;
-	size_t len, wlen;
+	size_t wlen;
 	ssize_t ret;
-	loff_t off;
+	loff_t len, off;
 
 	set_page_writeback(page);
 
@@ -93,8 +93,7 @@ static int orangefs_writepages_work(struct orangefs_writepages *ow,
 	struct orangefs_write_range *wrp, wr;
 	struct iov_iter iter;
 	ssize_t ret;
-	size_t len;
-	loff_t off;
+	loff_t len, off;
 	int i;
 
 	len = i_size_read(inode);