fs: aio: use a folio in aio_free_ring()

Use a folio throughout aio_free_ring() to remove calls to compound_head(),
also move pr_debug after folio check to remove unnecessary print.

Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Link: https://lore.kernel.org/r/20240321131640.948634-3-wangkefeng.wang@huawei.com
Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>

diff --git a/fs/aio.c b/fs/aio.c
index 60da236ad57507e79ec8eee319e15d3873b1802e..738654b58bfbb7c7c350949323a58d55cd511919 100644 (file)
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -334,14 +334,15 @@ static void aio_free_ring(struct kioctx *ctx)
        put_aio_ring_file(ctx);
 
        for (i = 0; i < ctx->nr_pages; i++) {
-               struct page *page;
-               pr_debug("pid(%d) [%d] page->count=%d\n", current->pid, i,
-                               page_count(ctx->ring_pages[i]));
-               page = ctx->ring_pages[i];
-               if (!page)
+               struct folio *folio = page_folio(ctx->ring_pages[i]);
+
+               if (!folio)
                        continue;
+
+               pr_debug("pid(%d) [%d] folio->count=%d\n", current->pid, i,
+                        folio_ref_count(folio));
                ctx->ring_pages[i] = NULL;
-               put_page(page);
+               folio_put(folio);
        }
 
        if (ctx->ring_pages && ctx->ring_pages != ctx->internal_pages) {