Merge branch 'for-2.6.31' of git://git.kernel.dk/linux-2.6-block

* 'for-2.6.31' of git://git.kernel.dk/linux-2.6-block: (153 commits)
  block: add request clone interface (v2)
  floppy: fix hibernation
  ramdisk: remove long-deprecated "ramdisk=" boot-time parameter
  fs/bio.c: add missing __user annotation
  block: prevent possible io_context->refcount overflow
  Add serial number support for virtio_blk, V4a
  block: Add missing bounce_pfn stacking and fix comments
  Revert "block: Fix bounce limit setting in DM"
  cciss: decode unit attention in SCSI error handling code
  cciss: Remove no longer needed sendcmd reject processing code
  cciss: change SCSI error handling routines to work with interrupts enabled.
  cciss: separate error processing and command retrying code in sendcmd_withirq_core()
  cciss: factor out fix target status processing code from sendcmd functions
  cciss: simplify interface of sendcmd() and sendcmd_withirq()
  cciss: factor out core of sendcmd_withirq() for use by SCSI error handling code
  cciss: Use schedule_timeout_uninterruptible in SCSI error handling code
  block: needs to set the residual length of a bidi request
  Revert "block: implement blkdev_readpages"
  block: Fix bounce limit setting in DM
  Removed reference to non-existing file Documentation/PCI/PCI-DMA-mapping.txt
  ...

Manually fix conflicts with tracing updates in:
	block/blk-sysfs.c
	drivers/ide/ide-atapi.c
	drivers/ide/ide-cd.c
	drivers/ide/ide-floppy.c
	drivers/ide/ide-tape.c
	include/trace/events/block.h
	kernel/trace/blktrace.c

1 files changed, 11 insertions, 13 deletions

diff --git a/block/as-iosched.c b/block/as-iosched.c
index c48fa670d221..7a12cf6ee1d3 100644
--- a/block/as-iosched.c
+++ b/block/as-iosched.c
@@ -306,8 +306,8 @@ as_choose_req(struct as_data *ad, struct request *rq1, struct request *rq2)
         data_dir = rq_is_sync(rq1);
 
         last = ad->last_sector[data_dir];
-        s1 = rq1->sector;
-        s2 = rq2->sector;
+        s1 = blk_rq_pos(rq1);
+        s2 = blk_rq_pos(rq2);
 
         BUG_ON(data_dir != rq_is_sync(rq2));
 
@@ -566,13 +566,15 @@ static void as_update_iohist(struct as_data *ad, struct as_io_context *aic,
                         as_update_thinktime(ad, aic, thinktime);
 
                         /* Calculate read -> read seek distance */
-                        if (aic->last_request_pos < rq->sector)
-                                seek_dist = rq->sector - aic->last_request_pos;
+                        if (aic->last_request_pos < blk_rq_pos(rq))
+                                seek_dist = blk_rq_pos(rq) -
+                                            aic->last_request_pos;
                         else
-                                seek_dist = aic->last_request_pos - rq->sector;
+                                seek_dist = aic->last_request_pos -
+                                            blk_rq_pos(rq);
                         as_update_seekdist(ad, aic, seek_dist);
                 }
-                aic->last_request_pos = rq->sector + rq->nr_sectors;
+                aic->last_request_pos = blk_rq_pos(rq) + blk_rq_sectors(rq);
                 set_bit(AS_TASK_IOSTARTED, &aic->state);
                 spin_unlock(&aic->lock);
         }
@@ -587,7 +589,7 @@ static int as_close_req(struct as_data *ad, struct as_io_context *aic,
 {
         unsigned long delay;    /* jiffies */
         sector_t last = ad->last_sector[ad->batch_data_dir];
-        sector_t next = rq->sector;
+        sector_t next = blk_rq_pos(rq);
         sector_t delta; /* acceptable close offset (in sectors) */
         sector_t s;
 
@@ -981,7 +983,7 @@ static void as_move_to_dispatch(struct as_data *ad, struct request *rq)
          * This has to be set in order to be correctly updated by
          * as_find_next_rq
          */
-        ad->last_sector[data_dir] = rq->sector + rq->nr_sectors;
+        ad->last_sector[data_dir] = blk_rq_pos(rq) + blk_rq_sectors(rq);
 
         if (data_dir == BLK_RW_SYNC) {
                 struct io_context *ioc = RQ_IOC(rq);
@@ -1312,12 +1314,8 @@ static void as_merged_requests(struct request_queue *q, struct request *req,
 static void as_work_handler(struct work_struct *work)
 {
         struct as_data *ad = container_of(work, struct as_data, antic_work);
-        struct request_queue *q = ad->q;
-        unsigned long flags;
 
-        spin_lock_irqsave(q->queue_lock, flags);
-        blk_start_queueing(q);
-        spin_unlock_irqrestore(q->queue_lock, flags);
+        blk_run_queue(ad->q);
 }
 
 static int as_may_queue(struct request_queue *q, int rw)