1 files changed, 1 insertions, 2 deletions

diff --git a/fs/btrfs/lzo.c b/fs/btrfs/lzo.c
index dfad8514f0da..78285f30909e 100644
--- a/fs/btrfs/lzo.c
+++ b/fs/btrfs/lzo.c
@@ -266,8 +266,7 @@ static int lzo_decompress_biovec(struct list_head *ws,
         char *data_in;
         unsigned long page_in_index = 0;
         unsigned long page_out_index = 0;
-        unsigned long total_pages_in = (srclen + PAGE_CACHE_SIZE - 1) /
-                                        PAGE_CACHE_SIZE;
+        unsigned long total_pages_in = DIV_ROUND_UP(srclen, PAGE_CACHE_SIZE);
         unsigned long buf_start;
         unsigned long buf_offset = 0;
         unsigned long bytes;