pagevec.h: add `const` to pointer parameters of getter functions

For improved const-correctness.

Link: https://lkml.kernel.org/r/20250828130311.772993-1-max.kellermann@ionos.com
Signed-off-by: Max Kellermann <max.kellermann@ionos.com>
Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Acked-by: SeongJae Park <sj@kernel.org>
Reviewed-by: Vishal Moola (Oracle) <vishal.moola@gmail.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/include/linux/pagevec.h b/include/linux/pagevec.h
index 5d3a0cccc6bf8dbe0a1fcd294cf3f39d9955259c..63be5a45162761d835accb1cd74a276162cb66c5 100644 (file)
--- a/include/linux/pagevec.h
+++ b/include/linux/pagevec.h
@@ -51,12 +51,12 @@ static inline void folio_batch_reinit(struct folio_batch *fbatch)
        fbatch->i = 0;
 }
 
-static inline unsigned int folio_batch_count(struct folio_batch *fbatch)
+static inline unsigned int folio_batch_count(const struct folio_batch *fbatch)
 {
        return fbatch->nr;
 }
 
-static inline unsigned int folio_batch_space(struct folio_batch *fbatch)
+static inline unsigned int folio_batch_space(const struct folio_batch *fbatch)
 {
        return PAGEVEC_SIZE - fbatch->nr;
 }