block: Abstract out bvec iterator

[GitHub/exynos8895/android_kernel_samsung_universal8895.git] / drivers / md / bcache / super.c

diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c
index 70708ab0b8f9270b1daf6c3677c073487e3995cc..60fb6044b9535fcb1864b12af36b479014ad641b 100644 (file)
--- a/drivers/md/bcache/super.c
+++ b/drivers/md/bcache/super.c
@@ -233,9 +233,9 @@ static void __write_super(struct cache_sb *sb, struct bio *bio)
        struct cache_sb *out = page_address(bio->bi_io_vec[0].bv_page);
        unsigned i;
 
-       bio->bi_sector  = SB_SECTOR;
-       bio->bi_rw      = REQ_SYNC|REQ_META;
-       bio->bi_size    = SB_SIZE;
+       bio->bi_iter.bi_sector  = SB_SECTOR;
+       bio->bi_rw              = REQ_SYNC|REQ_META;
+       bio->bi_iter.bi_size    = SB_SIZE;
        bch_bio_map(bio, NULL);
 
        out->offset             = cpu_to_le64(sb->offset);
@@ -347,7 +347,7 @@ static void uuid_io(struct cache_set *c, unsigned long rw,
                struct bio *bio = bch_bbio_alloc(c);
 
                bio->bi_rw      = REQ_SYNC|REQ_META|rw;
-               bio->bi_size    = KEY_SIZE(k) << 9;
+               bio->bi_iter.bi_size = KEY_SIZE(k) << 9;
 
                bio->bi_end_io  = uuid_endio;
                bio->bi_private = cl;
@@ -503,10 +503,10 @@ static void prio_io(struct cache *ca, uint64_t bucket, unsigned long rw)
 
        closure_init_stack(cl);
 
-       bio->bi_sector  = bucket * ca->sb.bucket_size;
-       bio->bi_bdev    = ca->bdev;
-       bio->bi_rw      = REQ_SYNC|REQ_META|rw;
-       bio->bi_size    = bucket_bytes(ca);
+       bio->bi_iter.bi_sector  = bucket * ca->sb.bucket_size;
+       bio->bi_bdev            = ca->bdev;
+       bio->bi_rw              = REQ_SYNC|REQ_META|rw;
+       bio->bi_iter.bi_size    = bucket_bytes(ca);
 
        bio->bi_end_io  = prio_endio;
        bio->bi_private = ca;
@@ -739,8 +739,6 @@ static void bcache_device_free(struct bcache_device *d)
        }
 
        bio_split_pool_free(&d->bio_split_hook);
-       if (d->unaligned_bvec)
-               mempool_destroy(d->unaligned_bvec);
        if (d->bio_split)
                bioset_free(d->bio_split);
        if (is_vmalloc_addr(d->full_dirty_stripes))
@@ -793,8 +791,6 @@ static int bcache_device_init(struct bcache_device *d, unsigned block_size,
                return minor;
 
        if (!(d->bio_split = bioset_create(4, offsetof(struct bbio, bio))) ||
-           !(d->unaligned_bvec = mempool_create_kmalloc_pool(1,
-                               sizeof(struct bio_vec) * BIO_MAX_PAGES)) ||
            bio_split_pool_init(&d->bio_split_hook) ||
            !(d->disk = alloc_disk(1))) {
                ida_simple_remove(&bcache_minor, minor);
@@ -1670,7 +1666,7 @@ static void run_cache_set(struct cache_set *c)
 err:
        closure_sync(&cl);
        /* XXX: test this, it's broken */
-       bch_cache_set_error(c, err);
+       bch_cache_set_error(c, "%s", err);
 }
 
 static bool can_attach_cache(struct cache *ca, struct cache_set *c)