2 files changed, 4 insertions, 4 deletions

diff --git a/block/ll_rw_blk.c b/block/ll_rw_blk.c
index 38c293b987b7..3de06953ac33 100644
--- a/block/ll_rw_blk.c
+++ b/block/ll_rw_blk.c
@@ -1221,7 +1221,7 @@ void blk_recount_segments(request_queue_t *q, struct bio *bio)
                  * considered part of another segment, since that might
                  * change with the bounce page.
                  */
-                high = page_to_pfn(bv->bv_page) >= q->bounce_pfn;
+                high = page_to_pfn(bv->bv_page) > q->bounce_pfn;
                 if (high || highprv)
                         goto new_hw_segment;
                 if (cluster) {
@@ -3658,8 +3658,8 @@ int __init blk_dev_init(void)
         open_softirq(BLOCK_SOFTIRQ, blk_done_softirq, NULL);
         register_hotcpu_notifier(&blk_cpu_notifier);
 
-        blk_max_low_pfn = max_low_pfn;
-        blk_max_pfn = max_pfn;
+        blk_max_low_pfn = max_low_pfn - 1;
+        blk_max_pfn = max_pfn - 1;
 
         return 0;
 }
diff --git a/mm/bounce.c b/mm/bounce.c
index 643efbe82402..ad401fc57440 100644
--- a/mm/bounce.c
+++ b/mm/bounce.c
@@ -204,7 +204,7 @@ static void __blk_queue_bounce(request_queue_t *q, struct bio **bio_orig,
                 /*
                  * is destination page below bounce pfn?
                  */
-                if (page_to_pfn(page) < q->bounce_pfn)
+                if (page_to_pfn(page) <= q->bounce_pfn)
                         continue;
 
                 /*