clk: rockchip: rk3288: fix up the clk register for hclk_vio

[firefly-linux-kernel-4.4.55.git] / drivers / md / dm-verity-target.c

diff --git a/drivers/md/dm-verity-target.c b/drivers/md/dm-verity-target.c
index 5214ed2c7507632c24378eb3adaa0313bf65228f..c7e97cf6e7fb1ac118eebe3df4350b100985ce23 100644 (file)
--- a/drivers/md/dm-verity-target.c
+++ b/drivers/md/dm-verity-target.c
@@ -501,6 +501,7 @@ static void verity_prefetch_io(struct work_struct *work)
                container_of(work, struct dm_verity_prefetch_work, work);
        struct dm_verity *v = pw->v;
        int i;
+       sector_t prefetch_size;
 
        for (i = v->levels - 2; i >= 0; i--) {
                sector_t hash_block_start;
@@ -523,8 +524,14 @@ static void verity_prefetch_io(struct work_struct *work)
                                hash_block_end = v->hash_blocks - 1;
                }
 no_prefetch_cluster:
+               // for emmc, it is more efficient to send bigger read
+               prefetch_size = max((sector_t)CONFIG_DM_VERITY_HASH_PREFETCH_MIN_SIZE,
+                       hash_block_end - hash_block_start + 1);
+               if ((hash_block_start + prefetch_size) >= (v->hash_start + v->hash_blocks)) {
+                       prefetch_size = hash_block_end - hash_block_start + 1;
+               }
                dm_bufio_prefetch(v->bufio, hash_block_start,
-                                 hash_block_end - hash_block_start + 1);
+                                 prefetch_size);
        }
 
        kfree(pw);
@@ -592,6 +599,7 @@ int verity_map(struct dm_target *ti, struct bio *bio)
 
        return DM_MAPIO_SUBMITTED;
 }
+EXPORT_SYMBOL_GPL(verity_map);
 
 /*
  * Status: V (valid) or C (corruption found)
@@ -655,6 +663,7 @@ void verity_status(struct dm_target *ti, status_type_t type,
                break;
        }
 }
+EXPORT_SYMBOL_GPL(verity_status);
 
 int verity_prepare_ioctl(struct dm_target *ti,
                struct block_device **bdev, fmode_t *mode)
@@ -668,6 +677,7 @@ int verity_prepare_ioctl(struct dm_target *ti,
                return 1;
        return 0;
 }
+EXPORT_SYMBOL_GPL(verity_prepare_ioctl);
 
 int verity_iterate_devices(struct dm_target *ti,
                                  iterate_devices_callout_fn fn, void *data)
@@ -676,6 +686,7 @@ int verity_iterate_devices(struct dm_target *ti,
 
        return fn(ti, v->data_dev, v->data_start, ti->len, data);
 }
+EXPORT_SYMBOL_GPL(verity_iterate_devices);
 
 void verity_io_hints(struct dm_target *ti, struct queue_limits *limits)
 {
@@ -689,6 +700,7 @@ void verity_io_hints(struct dm_target *ti, struct queue_limits *limits)
 
        blk_limits_io_min(limits, limits->logical_block_size);
 }
+EXPORT_SYMBOL_GPL(verity_io_hints);
 
 void verity_dtr(struct dm_target *ti)
 {
@@ -719,6 +731,7 @@ void verity_dtr(struct dm_target *ti)
 
        kfree(v);
 }
+EXPORT_SYMBOL_GPL(verity_dtr);
 
 static int verity_alloc_zero_digest(struct dm_verity *v)
 {
@@ -1053,6 +1066,7 @@ bad:
 
        return r;
 }
+EXPORT_SYMBOL_GPL(verity_ctr);
 
 static struct target_type verity_target = {
        .name           = "verity",