Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input

[linux-drm-fsl-dcu.git] / drivers / scsi / scsi_lib.c

diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index fb616c69151f69a3d6697658de3bbc87827729b6..9f7482d0b59489e7efccc347a8b7ce33208b4cdb 100644 (file)
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -36,7 +36,7 @@
 struct scsi_host_sg_pool {
        size_t          size;
        char            *name; 
-       kmem_cache_t    *slab;
+       struct kmem_cache       *slab;
        mempool_t       *pool;
 };
 
@@ -241,7 +241,7 @@ struct scsi_io_context {
        char sense[SCSI_SENSE_BUFFERSIZE];
 };
 
-static kmem_cache_t *scsi_io_context_cache;
+static struct kmem_cache *scsi_io_context_cache;
 
 static void scsi_end_async(struct request *req, int uptodate)
 {
@@ -265,13 +265,11 @@ static int scsi_merge_bio(struct request *rq, struct bio *bio)
 
        if (!rq->bio)
                blk_rq_bio_prep(q, rq, bio);
-       else if (!q->back_merge_fn(q, rq, bio))
+       else if (!ll_back_merge_fn(q, rq, bio))
                return -EINVAL;
        else {
                rq->biotail->bi_next = bio;
                rq->biotail = bio;
-               rq->hard_nr_sectors += bio_sectors(bio);
-               rq->nr_sectors = rq->hard_nr_sectors;
        }
 
        return 0;
@@ -390,10 +388,9 @@ int scsi_execute_async(struct scsi_device *sdev, const unsigned char *cmd,
        int err = 0;
        int write = (data_direction == DMA_TO_DEVICE);
 
-       sioc = kmem_cache_alloc(scsi_io_context_cache, gfp);
+       sioc = kmem_cache_zalloc(scsi_io_context_cache, gfp);
        if (!sioc)
                return DRIVER_ERROR << 24;
-       memset(sioc, 0, sizeof(*sioc));
 
        req = blk_get_request(sdev->request_queue, write, gfp);
        if (!req)
@@ -1402,7 +1399,7 @@ static void scsi_softirq_done(struct request *rq)
                        scsi_finish_command(cmd);
                        break;
                case NEEDS_RETRY:
-                       scsi_retry_command(cmd);
+                       scsi_queue_insert(cmd, SCSI_MLQUEUE_EH_RETRY);
                        break;
                case ADD_TO_MLQUEUE:
                        scsi_queue_insert(cmd, SCSI_MLQUEUE_DEVICE_BUSY);
@@ -2252,6 +2249,8 @@ void *scsi_kmap_atomic_sg(struct scatterlist *sg, int sg_count,
        size_t sg_len = 0, len_complete = 0;
        struct page *page;
 
+       WARN_ON(!irqs_disabled());
+
        for (i = 0; i < sg_count; i++) {
                len_complete = sg_len; /* Complete sg-entries */
                sg_len += sg[i].length;