The patch titled
mm: fix swap unused warning
has been added to the -mm tree. Its filename is
mm-cleanup-swap-unused-warning.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
From: Con Kolivas <kernel@xxxxxxxxxxx>
If CONFIG_SWAP is not defined we get:
mm/vmscan.c: In function â??remove_mappingâ??:
mm/vmscan.c:387: warning: unused variable â??swapâ??
Convert defines in swap.h into blank inline functions to fix this warning
and be consistent.
Signed-off-by: Con Kolivas <kernel@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
include/linux/swap.h | 64 +++++++++++++++++++++++++++++++++--------
1 files changed, 53 insertions(+), 11 deletions(-)
diff -puN include/linux/swap.h~mm-cleanup-swap-unused-warning include/linux/swap.h
--- devel/include/linux/swap.h~mm-cleanup-swap-unused-warning 2006-05-17 22:57:38.000000000 -0700
+++ devel-akpm/include/linux/swap.h 2006-05-17 22:57:38.000000000 -0700
@@ -286,18 +286,60 @@ static inline void disable_swap_token(vo
#define free_pages_and_swap_cache(pages, nr) \
release_pages((pages), (nr), 0);
-#define show_swap_cache_info() /*NOTHING*/
-#define free_swap_and_cache(swp) /*NOTHING*/
-#define swap_duplicate(swp) /*NOTHING*/
-#define swap_free(swp) /*NOTHING*/
-#define read_swap_cache_async(swp,vma,addr) NULL
-#define lookup_swap_cache(swp) NULL
-#define valid_swaphandles(swp, off) 0
+static inline void show_swap_cache_info(void)
+{
+}
+
+static inline void free_swap_and_cache(swp_entry_t swp)
+{
+}
+
+static inline int swap_duplicate(swp_entry_t swp)
+{
+ return 0;
+}
+
+static inline void swap_free(swp_entry_t swp)
+{
+}
+
+static inline struct page *read_swap_cache_async(swp_entry_t swp,
+ struct vm_area_struct *vma, unsigned long addr)
+{
+ return NULL;
+}
+
+static inline struct page *lookup_swap_cache(swp_entry_t swp)
+{
+ return NULL;
+}
+
+static inline int valid_swaphandles(swp_entry_t entry, unsigned long *offset)
+{
+ return 0;
+}
+
#define can_share_swap_page(p) (page_mapcount(p) == 1)
-#define move_to_swap_cache(p, swp) 1
-#define move_from_swap_cache(p, i, m) 1
-#define __delete_from_swap_cache(p) /*NOTHING*/
-#define delete_from_swap_cache(p) /*NOTHING*/
+
+static inline int move_to_swap_cache(struct page *page, swp_entry_t entry)
+{
+ return 1;
+}
+
+static inline int move_from_swap_cache(struct page *page, unsigned long index,
+ struct address_space *mapping)
+{
+ return 1;
+}
+
+static inline void __delete_from_swap_cache(struct page *page)
+{
+}
+
+static inline void delete_from_swap_cache(struct page *page)
+{
+}
+
#define swap_token_default_timeout 0
static inline int remove_exclusive_swap_page(struct page *p)
_
Patches currently in -mm which might be from kernel@xxxxxxxxxxx are
swsusp-rework-memory-shrinker-rev-2.patch
mm-cleanup-swap-unused-warning.patch
sched-implement-smpnice.patch
sched-store-weighted-load-on-up.patch
sched-add-discrete-weighted-cpu-load-function.patch
sched-prevent-high-load-weight-tasks-suppressing-balancing.patch
sched-improve-stability-of-smpnice-load-balancing.patch
sched-add-above-background-load-function.patch
mm-implement-swap-prefetching.patch
mm-implement-swap-prefetching-fix.patch
mm-implement-swap-prefetching-sched-batch.patch
-
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