X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=drivers%2Fmd%2Fraid1.c;h=15dd59b84e94442c50ae164cb2ec1c130a74bc52;hb=e6511df4f25607e2e6d60062eb69c28c057329fa;hp=d35e4c991e38262425cf4495ed6fe98676210ef8;hpb=e3fa252a0ef3d1f93bc55cefc2f707359b43c70d;p=firefly-linux-kernel-4.4.55.git

diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index d35e4c991e38..15dd59b84e94 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -1712,6 +1712,7 @@ static int process_checks(struct r1bio *r1_bio)
 	struct r1conf *conf = mddev->private;
 	int primary;
 	int i;
+	int vcnt;
 
 	for (primary = 0; primary < conf->raid_disks * 2; primary++)
 		if (r1_bio->bios[primary]->bi_end_io == end_sync_read &&
@@ -1721,9 +1722,9 @@ static int process_checks(struct r1bio *r1_bio)
 			break;
 		}
 	r1_bio->read_disk = primary;
+	vcnt = (r1_bio->sectors + PAGE_SIZE / 512 - 1) >> (PAGE_SHIFT - 9);
 	for (i = 0; i < conf->raid_disks * 2; i++) {
 		int j;
-		int vcnt = r1_bio->sectors >> (PAGE_SHIFT- 9);
 		struct bio *pbio = r1_bio->bios[primary];
 		struct bio *sbio = r1_bio->bios[i];
 		int size;