[PATCH] Add proper sparse __user casts to __copy_to_user_inatomic

[pandora-kernel.git] / mm / highmem.c

diff --git a/mm/highmem.c b/mm/highmem.c
index 9b274fd..ee5519b 100644 (file)
--- a/mm/highmem.c
+++ b/mm/highmem.c
@@ -46,6 +46,19 @@ static void *mempool_alloc_pages_isa(gfp_t gfp_mask, void *data)
  */
 #ifdef CONFIG_HIGHMEM
 
+unsigned long totalhigh_pages __read_mostly;
+
+unsigned int nr_free_highpages (void)
+{
+       pg_data_t *pgdat;
+       unsigned int pages = 0;
+
+       for_each_online_pgdat(pgdat)
+               pages += pgdat->node_zones[ZONE_HIGHMEM].free_pages;
+
+       return pages;
+}
+
 static int pkmap_count[LAST_PKMAP];
 static unsigned int last_pkmap_nr;
 static  __cacheline_aligned_in_smp DEFINE_SPINLOCK(kmap_lock);
@@ -315,8 +328,8 @@ static void bounce_end_io(struct bio *bio, mempool_t *pool, int err)
                if (bvec->bv_page == org_vec->bv_page)
                        continue;
 
-               mempool_free(bvec->bv_page, pool);      
-               dec_page_state(nr_bounce);
+               dec_zone_page_state(bvec->bv_page, NR_BOUNCE);
+               mempool_free(bvec->bv_page, pool);
        }
 
        bio_endio(bio_orig, bio_orig->bi_size, err);
@@ -397,7 +410,7 @@ static void __blk_queue_bounce(request_queue_t *q, struct bio **bio_orig,
                to->bv_page = mempool_alloc(pool, q->bounce_gfp);
                to->bv_len = from->bv_len;
                to->bv_offset = from->bv_offset;
-               inc_page_state(nr_bounce);
+               inc_zone_page_state(to->bv_page, NR_BOUNCE);
 
                if (rw == WRITE) {
                        char *vto, *vfrom;