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()

1 files changed, 6 insertions, 7 deletions

diff --git a/block/blk-core.c b/block/blk-core.c
index 29bcfac6c688..996ed906d8ca 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -603,13 +603,10 @@ blk_init_queue_node(request_fn_proc *rfn, spinlock_t *lock, int node_id)
         q->queue_flags          = QUEUE_FLAG_DEFAULT;
         q->queue_lock           = lock;
 
-        blk_queue_segment_boundary(q, BLK_SEG_BOUNDARY_MASK);
-
+        /*
+         * This also sets hw/phys segments, boundary and size
+         */
         blk_queue_make_request(q, __make_request);
-        blk_queue_max_segment_size(q, MAX_SEGMENT_SIZE);
-
-        blk_queue_max_hw_segments(q, MAX_HW_SEGMENTS);
-        blk_queue_max_phys_segments(q, MAX_PHYS_SEGMENTS);
 
         q->sg_reserved_size = INT_MAX;
 
@@ -735,7 +732,6 @@ static void freed_request(struct request_queue *q, int rw, int priv)
                 __freed_request(q, rw ^ 1);
 }
 
-#define blkdev_free_rq(list) list_entry((list)->next, struct request, queuelist)
 /*
  * Get a free request, queue_lock must be held.
  * Returns NULL on failure, with queue_lock held.
@@ -1066,6 +1062,9 @@ void __blk_put_request(struct request_queue *q, struct request *req)
 
         elv_completed_request(q, req);
 
+        /* this is a bio leak */
+        WARN_ON(req->bio != NULL);
+
         /*
          * Request may not have originated from ll_rw_blk. if not,
          * it didn't come out of our reserved rq pools