btrfs: use pgoff_t for page index variables

Any conversion of offsets in the logical or the physical mapping space
of the pages is done by a shift and the target type should be pgoff_t
(type of struct page::index). Fix the locations where it's still
unsigned long.

Signed-off-by: David Sterba <[email protected]>

1 files changed, 4 insertions, 5 deletions

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 6df7ef1b869b..403b94553f8e 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -395,8 +395,8 @@ void btrfs_inode_unlock(struct btrfs_inode *inode, unsigned int ilock_flags)
 static inline void btrfs_cleanup_ordered_extents(struct btrfs_inode *inode,
 						 u64 offset, u64 bytes)
 {
-	unsigned long index = offset >> PAGE_SHIFT;
-	unsigned long end_index = (offset + bytes - 1) >> PAGE_SHIFT;
+	pgoff_t index = offset >> PAGE_SHIFT;
+	const pgoff_t end_index = (offset + bytes - 1) >> PAGE_SHIFT;
 	struct folio *folio;
 
 	while (index <= end_index) {
@@ -808,12 +808,11 @@ static inline void inode_should_defrag(struct btrfs_inode *inode,
 
 static int extent_range_clear_dirty_for_io(struct btrfs_inode *inode, u64 start, u64 end)
 {
-	unsigned long end_index = end >> PAGE_SHIFT;
+	const pgoff_t end_index = end >> PAGE_SHIFT;
 	struct folio *folio;
 	int ret = 0;
 
-	for (unsigned long index = start >> PAGE_SHIFT;
-	     index <= end_index; index++) {
+	for (pgoff_t index = start >> PAGE_SHIFT; index <= end_index; index++) {
 		folio = filemap_get_folio(inode->vfs_inode.i_mapping, index);
 		if (IS_ERR(folio)) {
 			if (!ret)