mm/zsmalloc: convert obj_to_page() and zs_free() to use zpdesc

Rename obj_to_page() to obj_to_zpdesc() and also convert it and its user
zs_free() to use zpdesc.

Link: https://lkml.kernel.org/r/20241216150450.1228021-10-42.hyeyoo@gmail.com
Signed-off-by: Hyeonggon Yoo <42.hyeyoo@gmail.com>
Signed-off-by: Alex Shi <alexs@kernel.org>
Acked-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Tested-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Vishal Moola (Oracle) <vishal.moola@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c
index 83d48cffe96fc10d107d60ec73e561ffbd53599a..112603f9449fd5408be8c1b6408c6d1c7f00a379 100644 (file)
--- a/mm/zsmalloc.c
+++ b/mm/zsmalloc.c
@@ -798,9 +798,9 @@ static void obj_to_location(unsigned long obj, struct zpdesc **zpdesc,
        *obj_idx = (obj & OBJ_INDEX_MASK);
 }
 
-static void obj_to_page(unsigned long obj, struct page **page)
+static void obj_to_zpdesc(unsigned long obj, struct zpdesc **zpdesc)
 {
-       *page = pfn_to_page(obj >> OBJ_INDEX_BITS);
+       *zpdesc = pfn_zpdesc(obj >> OBJ_INDEX_BITS);
 }
 
 /**
@@ -1462,7 +1462,7 @@ static void obj_free(int class_size, unsigned long obj)
 void zs_free(struct zs_pool *pool, unsigned long handle)
 {
        struct zspage *zspage;
-       struct page *f_page;
+       struct zpdesc *f_zpdesc;
        unsigned long obj;
        struct size_class *class;
        int fullness;
@@ -1476,8 +1476,8 @@ void zs_free(struct zs_pool *pool, unsigned long handle)
         */
        read_lock(&pool->migrate_lock);
        obj = handle_to_obj(handle);
-       obj_to_page(obj, &f_page);
-       zspage = get_zspage(f_page);
+       obj_to_zpdesc(obj, &f_zpdesc);
+       zspage = get_zspage(zpdesc_page(f_zpdesc));
        class = zspage_class(pool, zspage);
        spin_lock(&class->lock);
        read_unlock(&pool->migrate_lock);