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authorMatthew Wilcox (Oracle) <willy@infradead.org>2023-11-09 21:06:05 +0000
committerAndrew Morton <akpm@linux-foundation.org>2023-12-29 11:58:23 -0800
commit808441943f6b817f4836752c6e0d1c07507f375e (patch)
tree9e0bfb78c6f9a01d78ed79ff37321aadc9317ef2 /fs/buffer.c
parent5f3bd90d9b98855c2e811aa3b4823d583b0020df (diff)
buffer: cast block to loff_t before shifting it
While sector_t is always defined as a u64 today, that hasn't always been the case and it might not always be the same size as loff_t in the future. Link: https://lkml.kernel.org/r/20231109210608.2252323-5-willy@infradead.org Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Cc: Hannes Reinecke <hare@suse.de> Cc: Luis Chamberlain <mcgrof@kernel.org> Cc: Pankaj Raghav <p.raghav@samsung.com> Cc: Ryusuke Konishi <konishi.ryusuke@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'fs/buffer.c')
-rw-r--r--fs/buffer.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/buffer.c b/fs/buffer.c
index f765a95034cf..1662ddddfa27 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -2008,7 +2008,7 @@ static int
iomap_to_bh(struct inode *inode, sector_t block, struct buffer_head *bh,
const struct iomap *iomap)
{
- loff_t offset = block << inode->i_blkbits;
+ loff_t offset = (loff_t)block << inode->i_blkbits;
bh->b_bdev = iomap->bdev;