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-rw-r--r--fs/bio.c33
1 files changed, 9 insertions, 24 deletions
diff --git a/fs/bio.c b/fs/bio.c
index f95c8749499f..7ec737eda72b 100644
--- a/fs/bio.c
+++ b/fs/bio.c
@@ -30,7 +30,7 @@
30 30
31#define BIO_POOL_SIZE 256 31#define BIO_POOL_SIZE 256
32 32
33static kmem_cache_t *bio_slab __read_mostly; 33static struct kmem_cache *bio_slab __read_mostly;
34 34
35#define BIOVEC_NR_POOLS 6 35#define BIOVEC_NR_POOLS 6
36 36
@@ -44,7 +44,7 @@ mempool_t *bio_split_pool __read_mostly;
44struct biovec_slab { 44struct biovec_slab {
45 int nr_vecs; 45 int nr_vecs;
46 char *name; 46 char *name;
47 kmem_cache_t *slab; 47 struct kmem_cache *slab;
48}; 48};
49 49
50/* 50/*
@@ -560,10 +560,8 @@ struct bio *bio_copy_user(request_queue_t *q, unsigned long uaddr,
560 break; 560 break;
561 } 561 }
562 562
563 if (bio_add_pc_page(q, bio, page, bytes, 0) < bytes) { 563 if (bio_add_pc_page(q, bio, page, bytes, 0) < bytes)
564 ret = -EINVAL;
565 break; 564 break;
566 }
567 565
568 len -= bytes; 566 len -= bytes;
569 } 567 }
@@ -622,10 +620,9 @@ static struct bio *__bio_map_user_iov(request_queue_t *q,
622 620
623 nr_pages += end - start; 621 nr_pages += end - start;
624 /* 622 /*
625 * transfer and buffer must be aligned to at least hardsector 623 * buffer must be aligned to at least hardsector size for now
626 * size for now, in the future we can relax this restriction
627 */ 624 */
628 if ((uaddr & queue_dma_alignment(q)) || (len & queue_dma_alignment(q))) 625 if (uaddr & queue_dma_alignment(q))
629 return ERR_PTR(-EINVAL); 626 return ERR_PTR(-EINVAL);
630 } 627 }
631 628
@@ -751,7 +748,6 @@ struct bio *bio_map_user_iov(request_queue_t *q, struct block_device *bdev,
751 int write_to_vm) 748 int write_to_vm)
752{ 749{
753 struct bio *bio; 750 struct bio *bio;
754 int len = 0, i;
755 751
756 bio = __bio_map_user_iov(q, bdev, iov, iov_count, write_to_vm); 752 bio = __bio_map_user_iov(q, bdev, iov, iov_count, write_to_vm);
757 753
@@ -766,18 +762,7 @@ struct bio *bio_map_user_iov(request_queue_t *q, struct block_device *bdev,
766 */ 762 */
767 bio_get(bio); 763 bio_get(bio);
768 764
769 for (i = 0; i < iov_count; i++) 765 return bio;
770 len += iov[i].iov_len;
771
772 if (bio->bi_size == len)
773 return bio;
774
775 /*
776 * don't support partial mappings
777 */
778 bio_endio(bio, bio->bi_size, 0);
779 bio_unmap_user(bio);
780 return ERR_PTR(-EINVAL);
781} 766}
782 767
783static void __bio_unmap_user(struct bio *bio) 768static void __bio_unmap_user(struct bio *bio)
@@ -955,16 +940,16 @@ static void bio_release_pages(struct bio *bio)
955 * run one bio_put() against the BIO. 940 * run one bio_put() against the BIO.
956 */ 941 */
957 942
958static void bio_dirty_fn(void *data); 943static void bio_dirty_fn(struct work_struct *work);
959 944
960static DECLARE_WORK(bio_dirty_work, bio_dirty_fn, NULL); 945static DECLARE_WORK(bio_dirty_work, bio_dirty_fn);
961static DEFINE_SPINLOCK(bio_dirty_lock); 946static DEFINE_SPINLOCK(bio_dirty_lock);
962static struct bio *bio_dirty_list; 947static struct bio *bio_dirty_list;
963 948
964/* 949/*
965 * This runs in process context 950 * This runs in process context
966 */ 951 */
967static void bio_dirty_fn(void *data) 952static void bio_dirty_fn(struct work_struct *work)
968{ 953{
969 unsigned long flags; 954 unsigned long flags;
970 struct bio *bio; 955 struct bio *bio;