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staging: ramster: fix build warnings

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Fix build warnings resulting from in-progress work that was
not entirely ifdef'd out.

Signed-off-by: Dan Magenheimer <dan.magenheimer@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Dan Magenheimer 2012-09-06 10:01:14 -07:00 committed by Greg Kroah-Hartman
parent 2065945540
commit 7892e560d4
1 changed files with 9 additions and 3 deletions
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12
drivers/staging/ramster/zcache-main.c
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@ -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 @@ static struct page *zcache_evict_eph_pageframe(void)
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)) {