[PATCH] md: remove unnecessary variable x in stripe_to_pdidx()

Signed-off-by: Coywolf Qi Hunt <qiyong@freeforge.net>
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 2 insertions, 3 deletions

diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 1c8ab340a11d..46fd651539fe 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -1351,10 +1351,9 @@ static int page_is_zero(struct page *p)
 static int stripe_to_pdidx(sector_t stripe, raid5_conf_t *conf, int disks)
 {
         int sectors_per_chunk = conf->chunk_size >> 9;
-        sector_t x = stripe;
         int pd_idx, dd_idx;
-        int chunk_offset = sector_div(x, sectors_per_chunk);
-        stripe = x;
+        int chunk_offset = sector_div(stripe, sectors_per_chunk);
+
         raid5_compute_sector(stripe*(disks-1)*sectors_per_chunk
                              + chunk_offset, disks, disks-1, &dd_idx, &pd_idx, conf);
         return pd_idx;