Merge branch 'fix/hda' into for-linus

[pandora-kernel.git] / include / linux / bio.h

diff --git a/include/linux/bio.h b/include/linux/bio.h
index 7b214fd..2892b71 100644 (file)
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -218,12 +218,12 @@ struct bio {
 #define bio_sectors(bio)       ((bio)->bi_size >> 9)
 #define bio_empty_barrier(bio) (bio_barrier(bio) && !bio_has_data(bio) && !bio_discard(bio))
 
-static inline unsigned int bio_cur_sectors(struct bio *bio)
+static inline unsigned int bio_cur_bytes(struct bio *bio)
 {
        if (bio->bi_vcnt)
-               return bio_iovec(bio)->bv_len >> 9;
+               return bio_iovec(bio)->bv_len;
        else /* dataless requests such as discard */
-               return bio->bi_size >> 9;
+               return bio->bi_size;
 }
 
 static inline void *bio_data(struct bio *bio)
@@ -279,7 +279,7 @@ static inline int bio_has_allocated_vec(struct bio *bio)
 #define __BIO_SEG_BOUNDARY(addr1, addr2, mask) \
        (((addr1) | (mask)) == (((addr2) - 1) | (mask)))
 #define BIOVEC_SEG_BOUNDARY(q, b1, b2) \
-       __BIO_SEG_BOUNDARY(bvec_to_phys((b1)), bvec_to_phys((b2)) + (b2)->bv_len, (q)->seg_boundary_mask)
+       __BIO_SEG_BOUNDARY(bvec_to_phys((b1)), bvec_to_phys((b2)) + (b2)->bv_len, queue_segment_boundary((q)))
 #define BIO_SEG_BOUNDARY(q, b1, b2) \
        BIOVEC_SEG_BOUNDARY((q), __BVEC_END((b1)), __BVEC_START((b2)))
 
@@ -319,7 +319,6 @@ static inline int bio_has_allocated_vec(struct bio *bio)
  */
 struct bio_integrity_payload {
        struct bio              *bip_bio;       /* parent bio */
-       struct bio_vec          *bip_vec;       /* integrity data vector */
 
        sector_t                bip_sector;     /* virtual start sector */
 
@@ -328,11 +327,12 @@ struct bio_integrity_payload {
 
        unsigned int            bip_size;
 
-       unsigned short          bip_pool;       /* pool the ivec came from */
+       unsigned short          bip_slab;       /* slab the bip came from */
        unsigned short          bip_vcnt;       /* # of integrity bio_vecs */
        unsigned short          bip_idx;        /* current bip_vec index */
 
        struct work_struct      bip_work;       /* I/O completion */
+       struct bio_vec          bip_vec[0];     /* embedded bvec array */
 };
 #endif /* CONFIG_BLK_DEV_INTEGRITY */
 
@@ -430,6 +430,9 @@ struct bio_set {
        unsigned int front_pad;
 
        mempool_t *bio_pool;
+#if defined(CONFIG_BLK_DEV_INTEGRITY)
+       mempool_t *bio_integrity_pool;
+#endif
        mempool_t *bvec_pool;
 };
 
@@ -506,7 +509,7 @@ static inline int bio_has_data(struct bio *bio)
 }
 
 /*
- * BIO list managment for use by remapping drivers (e.g. DM or MD).
+ * BIO list management for use by remapping drivers (e.g. DM or MD) and loop.
  *
  * A bio_list anchors a singly-linked list of bios chained through the bi_next
  * member of the bio.  The bio_list also caches the last list member to allow
@@ -590,6 +593,11 @@ static inline void bio_list_merge_head(struct bio_list *bl,
        bl->head = bl2->head;
 }
 
+static inline struct bio *bio_list_peek(struct bio_list *bl)
+{
+       return bl->head;
+}
+
 static inline struct bio *bio_list_pop(struct bio_list *bl)
 {
        struct bio *bio = bl->head;
@@ -629,8 +637,9 @@ static inline struct bio *bio_list_get(struct bio_list *bl)
 
 #define bio_integrity(bio) (bio->bi_integrity != NULL)
 
+extern struct bio_integrity_payload *bio_integrity_alloc_bioset(struct bio *, gfp_t, unsigned int, struct bio_set *);
 extern struct bio_integrity_payload *bio_integrity_alloc(struct bio *, gfp_t, unsigned int);
-extern void bio_integrity_free(struct bio *);
+extern void bio_integrity_free(struct bio *, struct bio_set *);
 extern int bio_integrity_add_page(struct bio *, struct page *, unsigned int, unsigned int);
 extern int bio_integrity_enabled(struct bio *bio);
 extern int bio_integrity_set_tag(struct bio *, void *, unsigned int);
@@ -640,21 +649,27 @@ extern void bio_integrity_endio(struct bio *, int);
 extern void bio_integrity_advance(struct bio *, unsigned int);
 extern void bio_integrity_trim(struct bio *, unsigned int, unsigned int);
 extern void bio_integrity_split(struct bio *, struct bio_pair *, int);
-extern int bio_integrity_clone(struct bio *, struct bio *, gfp_t);
+extern int bio_integrity_clone(struct bio *, struct bio *, gfp_t, struct bio_set *);
+extern int bioset_integrity_create(struct bio_set *, int);
+extern void bioset_integrity_free(struct bio_set *);
+extern void bio_integrity_init(void);
 
 #else /* CONFIG_BLK_DEV_INTEGRITY */
 
 #define bio_integrity(a)               (0)
+#define bioset_integrity_create(a, b)  (0)
 #define bio_integrity_prep(a)          (0)
 #define bio_integrity_enabled(a)       (0)
-#define bio_integrity_clone(a, b, c)   (0)
-#define bio_integrity_free(a)          do { } while (0)
+#define bio_integrity_clone(a, b, c, d)        (0)
+#define bioset_integrity_free(a)       do { } while (0)
+#define bio_integrity_free(a, b)       do { } while (0)
 #define bio_integrity_endio(a, b)      do { } while (0)
 #define bio_integrity_advance(a, b)    do { } while (0)
 #define bio_integrity_trim(a, b, c)    do { } while (0)
 #define bio_integrity_split(a, b, c)   do { } while (0)
 #define bio_integrity_set_tag(a, b, c) do { } while (0)
 #define bio_integrity_get_tag(a, b, c) do { } while (0)
+#define bio_integrity_init(a)          do { } while (0)
 
 #endif /* CONFIG_BLK_DEV_INTEGRITY */