Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/net-2.6

[safe/jmp/linux-2.6] / drivers / mmc / card / queue.c

diff --git a/drivers/mmc/card/queue.c b/drivers/mmc/card/queue.c
index e02eac8..30cd13b 100644 (file)
--- a/drivers/mmc/card/queue.c
+++ b/drivers/mmc/card/queue.c
@@ -1,5 +1,5 @@
 /*
- *  linux/drivers/mmc/queue.c
+ *  linux/drivers/mmc/card/queue.c
  *
  *  Copyright (C) 2003 Russell King, All Rights Reserved.
  *  Copyright 2006-2007 Pierre Ossman
@@ -13,6 +13,7 @@
 #include <linux/blkdev.h>
 #include <linux/freezer.h>
 #include <linux/kthread.h>
+#include <linux/scatterlist.h>
 
 #include <linux/mmc/card.h>
 #include <linux/mmc/host.h>
@@ -117,7 +118,6 @@ int mmc_init_queue(struct mmc_queue *mq, struct mmc_card *card, spinlock_t *lock
        struct mmc_host *host = card->host;
        u64 limit = BLK_BOUNCE_HIGH;
        int ret;
-       unsigned int bouncesz;
 
        if (mmc_dev(host)->dma_mask && *mmc_dev(host)->dma_mask)
                limit = *mmc_dev(host)->dma_mask;
@@ -134,6 +134,8 @@ int mmc_init_queue(struct mmc_queue *mq, struct mmc_card *card, spinlock_t *lock
 
 #ifdef CONFIG_MMC_BLOCK_BOUNCE
        if (host->max_hw_segs == 1) {
+               unsigned int bouncesz;
+
                bouncesz = MMC_QUEUE_BOUNCESZ;
 
                if (bouncesz > host->max_req_size)
@@ -156,15 +158,17 @@ int mmc_init_queue(struct mmc_queue *mq, struct mmc_card *card, spinlock_t *lock
                                GFP_KERNEL);
                        if (!mq->sg) {
                                ret = -ENOMEM;
-                               goto free_bounce_buf;
+                               goto cleanup_queue;
                        }
+                       sg_init_table(mq->sg, 1);
 
                        mq->bounce_sg = kmalloc(sizeof(struct scatterlist) *
                                bouncesz / 512, GFP_KERNEL);
                        if (!mq->bounce_sg) {
                                ret = -ENOMEM;
-                               goto free_sg;
+                               goto cleanup_queue;
                        }
+                       sg_init_table(mq->bounce_sg, bouncesz / 512);
                }
        }
 #endif
@@ -182,6 +186,7 @@ int mmc_init_queue(struct mmc_queue *mq, struct mmc_card *card, spinlock_t *lock
                        ret = -ENOMEM;
                        goto cleanup_queue;
                }
+               sg_init_table(mq->sg, host->max_phys_segs);
        }
 
        init_MUTEX(&mq->thread_sem);
@@ -197,14 +202,13 @@ int mmc_init_queue(struct mmc_queue *mq, struct mmc_card *card, spinlock_t *lock
        if (mq->bounce_sg)
                kfree(mq->bounce_sg);
        mq->bounce_sg = NULL;
- free_sg:
-       kfree(mq->sg);
+ cleanup_queue:
+       if (mq->sg)
+               kfree(mq->sg);
        mq->sg = NULL;
- free_bounce_buf:
        if (mq->bounce_buf)
                kfree(mq->bounce_buf);
        mq->bounce_buf = NULL;
- cleanup_queue:
        blk_cleanup_queue(mq->queue);
        return ret;
 }
@@ -302,12 +306,12 @@ static void copy_sg(struct scatterlist *dst, unsigned int dst_len,
                BUG_ON(dst_len == 0);
 
                if (dst_size == 0) {
-                       dst_buf = page_address(dst->page) + dst->offset;
+                       dst_buf = sg_virt(dst);
                        dst_size = dst->length;
                }
 
                if (src_size == 0) {
-                       src_buf = page_address(src->page) + src->offset;
+                       src_buf = sg_virt(src);
                        src_size = src->length;
                }
 
@@ -353,9 +357,7 @@ unsigned int mmc_queue_map_sg(struct mmc_queue *mq)
                return 1;
        }
 
-       mq->sg[0].page = virt_to_page(mq->bounce_buf);
-       mq->sg[0].offset = offset_in_page(mq->bounce_buf);
-       mq->sg[0].length = 0;
+       sg_init_one(mq->sg, mq->bounce_buf, 0);
 
        while (sg_len) {
                mq->sg[0].length += mq->bounce_sg[sg_len - 1].length;