diff options
Diffstat (limited to 'mm/zsmalloc.c')
| -rw-r--r-- | mm/zsmalloc.c | 17 |
1 files changed, 5 insertions, 12 deletions
diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c index 9cc3c0b2c2c1..b7ee9c34dbd6 100644 --- a/mm/zsmalloc.c +++ b/mm/zsmalloc.c @@ -24,8 +24,7 @@ * * Usage of struct page flags: * PG_private: identifies the first component page - * PG_private2: identifies the last component page - * PG_owner_priv_1: indentifies the huge component page + * PG_owner_priv_1: identifies the huge component page * */ @@ -34,6 +33,7 @@ #include <linux/module.h> #include <linux/kernel.h> #include <linux/sched.h> +#include <linux/magic.h> #include <linux/bitops.h> #include <linux/errno.h> #include <linux/highmem.h> @@ -268,10 +268,6 @@ struct zs_pool { #endif }; -/* - * A zspage's class index and fullness group - * are encoded in its (first)page->mapping - */ #define FULLNESS_BITS 2 #define CLASS_BITS 8 #define ISOLATED_BITS 3 @@ -364,7 +360,7 @@ static struct zspage *cache_alloc_zspage(struct zs_pool *pool, gfp_t flags) { return kmem_cache_alloc(pool->zspage_cachep, flags & ~(__GFP_HIGHMEM|__GFP_MOVABLE)); -}; +} static void cache_free_zspage(struct zs_pool *pool, struct zspage *zspage) { @@ -938,7 +934,6 @@ static void reset_page(struct page *page) { __ClearPageMovable(page); ClearPagePrivate(page); - ClearPagePrivate2(page); set_page_private(page, 0); page_mapcount_reset(page); ClearPageHugeObject(page); @@ -1085,7 +1080,7 @@ static void create_page_chain(struct size_class *class, struct zspage *zspage, * 2. each sub-page point to zspage using page->private * * we set PG_private to identify the first page (i.e. no other sub-page - * has this flag set) and PG_private_2 to identify the last page. + * has this flag set). */ for (i = 0; i < nr_pages; i++) { page = pages[i]; @@ -1100,8 +1095,6 @@ static void create_page_chain(struct size_class *class, struct zspage *zspage, } else { prev_page->freelist = page; } - if (i == nr_pages - 1) - SetPagePrivate2(page); prev_page = page; } } @@ -2383,7 +2376,7 @@ struct zs_pool *zs_create_pool(const char *name) goto err; /* - * Iterate reversly, because, size of size_class that we want to use + * Iterate reversely, because, size of size_class that we want to use * for merging should be larger or equal to current size. */ for (i = zs_size_classes - 1; i >= 0; i--) { |