Merge branch 'for-2.6.30' of git://git.kernel.dk/linux-2.6-block

* 'for-2.6.30' of git://git.kernel.dk/linux-2.6-block:
  Get rid of pdflush_operation() in emergency sync and remount
  btrfs: get rid of current_is_pdflush() in btrfs_btree_balance_dirty
  Move the default_backing_dev_info out of readahead.c and into backing-dev.c
  block: Repeated lines in switching-sched.txt
  bsg: Remove bogus check against request_queue->max_sectors
  block: WARN in __blk_put_request() for potential bio leak
  loop: fix circular locking in loop_clr_fd()
  loop: support barrier writes
  bsg: add support for tail queuing
  cpqarray: enable bus mastering
  block: genhd.h cleanup patch
  block: add private bio_set for bio integrity allocations
  block: genhd.h comment needs updating
  block: get rid of unused blkdev_free_rq() define
  block: remove various blk_queue_*() setting functions in blk_init_queue_node()
  cciss: add BUILD_BUG_ON() for catching bad CommandList_struct alignment
  block: don't create bio_vec slabs of less than the inline number
  block: cleanup bio_alloc_bioset()

3 files changed, 14 insertions, 17 deletions

diff --git a/include/linux/bio.h b/include/linux/bio.h
index d8bd43bfdcf..b05b1d4d17d 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -426,9 +426,6 @@ 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;
 };
 
@@ -519,9 +516,8 @@ static inline int bio_has_data(struct bio *bio)
 
 #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 *, struct bio_set *);
+extern void bio_integrity_free(struct bio *);
 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);
@@ -531,27 +527,21 @@ 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, 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_slab(void);
+extern int bio_integrity_clone(struct bio *, struct bio *, gfp_t);
 
 #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,d )	(0)
-#define bioset_integrity_free(a)	do { } while (0)
-#define bio_integrity_free(a, b)	do { } while (0)
+#define bio_integrity_clone(a, b, c)	(0)
+#define bio_integrity_free(a)		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_slab(a)	do { } while (0)
 
 #endif /* CONFIG_BLK_DEV_INTEGRITY */
 
diff --git a/include/linux/bsg.h b/include/linux/bsg.h
index cf0303a6061..3f0c64ace42 100644
--- a/include/linux/bsg.h
+++ b/include/linux/bsg.h
@@ -7,6 +7,14 @@
 #define BSG_SUB_PROTOCOL_SCSI_TMF	1
 #define BSG_SUB_PROTOCOL_SCSI_TRANSPORT	2
 
+/*
+ * For flags member below
+ * sg.h sg_io_hdr also has bits defined for it's flags member. However
+ * none of these bits are implemented/used by bsg. The bits below are
+ * allocated to not conflict with sg.h ones anyway.
+ */
+#define BSG_FLAG_Q_AT_TAIL 0x10 /* default, == 0 at this bit, is Q_AT_HEAD */
+
 struct sg_io_v4 {
 	__s32 guard;		/* [i] 'Q' to differentiate from v3 */
 	__u32 protocol;		/* [i] 0 -> SCSI , .... */
diff --git a/include/linux/genhd.h b/include/linux/genhd.h
index 16948eaecae..634c53028fb 100644
--- a/include/linux/genhd.h
+++ b/include/linux/genhd.h
@@ -333,11 +333,10 @@ static inline void part_dec_in_flight(struct hd_struct *part)
 		part_to_disk(part)->part0.in_flight--;
 }
 
-/* drivers/block/ll_rw_blk.c */
+/* block/blk-core.c */
 extern void part_round_stats(int cpu, struct hd_struct *part);
 
-/* drivers/block/genhd.c */
-extern int get_blkdev_list(char *, int);
+/* block/genhd.c */
 extern void add_disk(struct gendisk *disk);
 extern void del_gendisk(struct gendisk *gp);
 extern void unlink_gendisk(struct gendisk *gp);