diff options
Diffstat (limited to 'drivers/staging/ramster/zcache-main.c')
| -rw-r--r-- | drivers/staging/ramster/zcache-main.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/drivers/staging/ramster/zcache-main.c b/drivers/staging/ramster/zcache-main.c index 86e19d6..a09dd5c 100644 --- a/drivers/staging/ramster/zcache-main.c +++ b/drivers/staging/ramster/zcache-main.c @@ -449,16 +449,18 @@ static struct page *zcache_alloc_page(void) return page; } +#ifdef FRONTSWAP_HAS_UNUSE static void zcache_unacct_page(void) { zcache_pageframes_freed = atomic_inc_return(&zcache_pageframes_freed_atomic); } +#endif static void zcache_free_page(struct page *page) { long curr_pageframes; - static long max_pageframes, min_pageframes, total_freed; + static long max_pageframes, min_pageframes; if (page == NULL) BUG(); @@ -965,9 +967,10 @@ out: return page; } +#ifdef FRONTSWAP_HAS_UNUSE static void unswiz(struct tmem_oid oid, u32 index, unsigned *type, pgoff_t *offset); -#ifdef FRONTSWAP_HAS_UNUSE + /* * Choose an LRU persistent pageframe and attempt to "unuse" it by * calling frontswap_unuse on both zpages. @@ -1060,7 +1063,9 @@ static int shrink_zcache_memory(struct shrinker *shrink, int nr_evict = 0; int nr_unuse = 0; struct page *page; +#ifdef FRONTSWAP_HAS_UNUSE int unuse_ret; +#endif if (nr <= 0) goto skip_evict; @@ -1519,6 +1524,7 @@ static inline struct tmem_oid oswiz(unsigned type, u32 ind) return oid; } +#ifdef FRONTSWAP_HAS_UNUSE static void unswiz(struct tmem_oid oid, u32 index, unsigned *type, pgoff_t *offset) { @@ -1526,6 +1532,7 @@ static void unswiz(struct tmem_oid oid, u32 index, *offset = (pgoff_t)((index << SWIZ_BITS) | (oid.oid[0] & SWIZ_MASK)); } +#endif static int zcache_frontswap_put_page(unsigned type, pgoff_t offset, struct page *page) @@ -1535,7 +1542,6 @@ static int zcache_frontswap_put_page(unsigned type, pgoff_t offset, struct tmem_oid oid = oswiz(type, ind); int ret = -1; unsigned long flags; - int unuse_ret; BUG_ON(!PageLocked(page)); if (!disable_frontswap_ignore_nonactive && !PageWasActive(page)) { |