[ALSA] ad1848 - Add PM support

[safe/jmp/linux-2.6] / fs / bio.c

diff --git a/fs/bio.c b/fs/bio.c
index e49cf7d..460554b 100644 (file)
--- a/fs/bio.c
+++ b/fs/bio.c
@@ -75,7 +75,7 @@ struct bio_set {
  */
 static struct bio_set *fs_bio_set;
 
-static inline struct bio_vec *bvec_alloc_bs(unsigned int __nocast gfp_mask, int nr, unsigned long *idx, struct bio_set *bs)
+static inline struct bio_vec *bvec_alloc_bs(gfp_t gfp_mask, int nr, unsigned long *idx, struct bio_set *bs)
 {
        struct bio_vec *bvl;
        struct biovec_slab *bp;
@@ -105,18 +105,22 @@ static inline struct bio_vec *bvec_alloc_bs(unsigned int __nocast gfp_mask, int
        return bvl;
 }
 
-/*
- * default destructor for a bio allocated with bio_alloc_bioset()
- */
-static void bio_destructor(struct bio *bio)
+void bio_free(struct bio *bio, struct bio_set *bio_set)
 {
        const int pool_idx = BIO_POOL_IDX(bio);
-       struct bio_set *bs = bio->bi_set;
 
        BIO_BUG_ON(pool_idx >= BIOVEC_NR_POOLS);
 
-       mempool_free(bio->bi_io_vec, bs->bvec_pools[pool_idx]);
-       mempool_free(bio, bs->bio_pool);
+       mempool_free(bio->bi_io_vec, bio_set->bvec_pools[pool_idx]);
+       mempool_free(bio, bio_set->bio_pool);
+}
+
+/*
+ * default destructor for a bio allocated with bio_alloc_bioset()
+ */
+static void bio_fs_destructor(struct bio *bio)
+{
+       bio_free(bio, fs_bio_set);
 }
 
 inline void bio_init(struct bio *bio)
@@ -151,7 +155,7 @@ inline void bio_init(struct bio *bio)
  *   allocate bio and iovecs from the memory pools specified by the
  *   bio_set structure.
  **/
-struct bio *bio_alloc_bioset(unsigned int __nocast gfp_mask, int nr_iovecs, struct bio_set *bs)
+struct bio *bio_alloc_bioset(gfp_t gfp_mask, int nr_iovecs, struct bio_set *bs)
 {
        struct bio *bio = mempool_alloc(bs->bio_pool, gfp_mask);
 
@@ -172,16 +176,19 @@ struct bio *bio_alloc_bioset(unsigned int __nocast gfp_mask, int nr_iovecs, stru
                        bio->bi_max_vecs = bvec_slabs[idx].nr_vecs;
                }
                bio->bi_io_vec = bvl;
-               bio->bi_destructor = bio_destructor;
-               bio->bi_set = bs;
        }
 out:
        return bio;
 }
 
-struct bio *bio_alloc(unsigned int __nocast gfp_mask, int nr_iovecs)
+struct bio *bio_alloc(gfp_t gfp_mask, int nr_iovecs)
 {
-       return bio_alloc_bioset(gfp_mask, nr_iovecs, fs_bio_set);
+       struct bio *bio = bio_alloc_bioset(gfp_mask, nr_iovecs, fs_bio_set);
+
+       if (bio)
+               bio->bi_destructor = bio_fs_destructor;
+
+       return bio;
 }
 
 void zero_fill_bio(struct bio *bio)
@@ -270,12 +277,14 @@ inline void __bio_clone(struct bio *bio, struct bio *bio_src)
  *
  *     Like __bio_clone, only also allocates the returned bio
  */
-struct bio *bio_clone(struct bio *bio, unsigned int __nocast gfp_mask)
+struct bio *bio_clone(struct bio *bio, gfp_t gfp_mask)
 {
        struct bio *b = bio_alloc_bioset(gfp_mask, bio->bi_max_vecs, fs_bio_set);
 
-       if (b)
+       if (b) {
+               b->bi_destructor = bio_fs_destructor;
                __bio_clone(b, bio);
+       }
 
        return b;
 }
@@ -674,7 +683,7 @@ struct bio *bio_map_user(request_queue_t *q, struct block_device *bdev,
 {
        struct sg_iovec iov;
 
-       iov.iov_base = (__user void *)uaddr;
+       iov.iov_base = (void __user *)uaddr;
        iov.iov_len = len;
 
        return bio_map_user_iov(q, bdev, &iov, 1, write_to_vm);
@@ -769,7 +778,7 @@ static int bio_map_kern_endio(struct bio *bio, unsigned int bytes_done, int err)
 
 
 static struct bio *__bio_map_kern(request_queue_t *q, void *data,
-                                 unsigned int len, unsigned int gfp_mask)
+                                 unsigned int len, gfp_t gfp_mask)
 {
        unsigned long kaddr = (unsigned long)data;
        unsigned long end = (kaddr + len + PAGE_SIZE - 1) >> PAGE_SHIFT;
@@ -816,7 +825,7 @@ static struct bio *__bio_map_kern(request_queue_t *q, void *data,
  *     device. Returns an error pointer in case of error.
  */
 struct bio *bio_map_kern(request_queue_t *q, void *data, unsigned int len,
-                        unsigned int gfp_mask)
+                        gfp_t gfp_mask)
 {
        struct bio *bio;
 
@@ -1069,7 +1078,7 @@ struct bio_pair *bio_split(struct bio *bi, mempool_t *pool, int first_sectors)
        return bp;
 }
 
-static void *bio_pair_alloc(unsigned int __nocast gfp_flags, void *data)
+static void *bio_pair_alloc(gfp_t gfp_flags, void *data)
 {
        return kmalloc(sizeof(struct bio_pair), gfp_flags);
 }
@@ -1211,6 +1220,7 @@ subsys_initcall(init_bio);
 
 EXPORT_SYMBOL(bio_alloc);
 EXPORT_SYMBOL(bio_put);
+EXPORT_SYMBOL(bio_free);
 EXPORT_SYMBOL(bio_endio);
 EXPORT_SYMBOL(bio_init);
 EXPORT_SYMBOL(__bio_clone);