aoe: reserve enough headroom on skbs

[pandora-kernel.git] / drivers / block / aoe / aoeblk.c

diff --git a/drivers/block/aoe/aoeblk.c b/drivers/block/aoe/aoeblk.c
index 528f631..7eca463 100644 (file)
--- a/drivers/block/aoe/aoeblk.c
+++ b/drivers/block/aoe/aoeblk.c
@@ -15,6 +15,7 @@
 #include <linux/genhd.h>
 #include <linux/netdevice.h>
 #include <linux/mutex.h>
+#include <linux/export.h>
 #include "aoe.h"
 
 static DEFINE_MUTEX(aoeblk_mutex);
@@ -159,7 +160,7 @@ aoeblk_release(struct gendisk *disk, fmode_t mode)
        return 0;
 }
 
-static int
+static void
 aoeblk_make_request(struct request_queue *q, struct bio *bio)
 {
        struct sk_buff_head queue;
@@ -172,25 +173,25 @@ aoeblk_make_request(struct request_queue *q, struct bio *bio)
        if (bio == NULL) {
                printk(KERN_ERR "aoe: bio is NULL\n");
                BUG();
-               return 0;
+               return;
        }
        d = bio->bi_bdev->bd_disk->private_data;
        if (d == NULL) {
                printk(KERN_ERR "aoe: bd_disk->private_data is NULL\n");
                BUG();
                bio_endio(bio, -ENXIO);
-               return 0;
+               return;
        } else if (bio->bi_io_vec == NULL) {
                printk(KERN_ERR "aoe: bi_io_vec is NULL\n");
                BUG();
                bio_endio(bio, -ENXIO);
-               return 0;
+               return;
        }
        buf = mempool_alloc(d->bufpool, GFP_NOIO);
        if (buf == NULL) {
                printk(KERN_INFO "aoe: buf allocation failure\n");
                bio_endio(bio, -ENOMEM);
-               return 0;
+               return;
        }
        memset(buf, 0, sizeof(*buf));
        INIT_LIST_HEAD(&buf->bufs);
@@ -211,7 +212,7 @@ aoeblk_make_request(struct request_queue *q, struct bio *bio)
                spin_unlock_irqrestore(&d->lock, flags);
                mempool_free(buf, d->bufpool);
                bio_endio(bio, -ENXIO);
-               return 0;
+               return;
        }
 
        list_add_tail(&buf->bufs, &d->bufq);
@@ -222,8 +223,6 @@ aoeblk_make_request(struct request_queue *q, struct bio *bio)
 
        spin_unlock_irqrestore(&d->lock, flags);
        aoenet_xmit(&queue);
-
-       return 0;
 }
 
 static int
@@ -277,8 +276,6 @@ aoeblk_gdalloc(void *vp)
                goto err_mempool;
        blk_queue_make_request(d->blkq, aoeblk_make_request);
        d->blkq->backing_dev_info.name = "aoe";
-       if (bdi_init(&d->blkq->backing_dev_info))
-               goto err_blkq;
        spin_lock_irqsave(&d->lock, flags);
        gd->major = AOE_MAJOR;
        gd->first_minor = d->sysminor * AOE_PARTITIONS;
@@ -299,9 +296,6 @@ aoeblk_gdalloc(void *vp)
        aoedisk_add_sysfs(d);
        return;
 
-err_blkq:
-       blk_cleanup_queue(d->blkq);
-       d->blkq = NULL;
 err_mempool:
        mempool_destroy(d->bufpool);
 err_disk: