Merge branch 'linus' into tracing/core

Merge reason: tracing/core was on a .30-rc1 base and was missing out on
              on a handful of tracing fixes present in .30-rc5-almost.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

6 files changed, 36 insertions, 28 deletions

diff --git a/drivers/block/brd.c b/drivers/block/brd.c
index bdd4f5f45575..5f7e64ba87e5 100644
--- a/drivers/block/brd.c
+++ b/drivers/block/brd.c
@@ -275,8 +275,10 @@ static int brd_do_bvec(struct brd_device *brd, struct page *page,
         if (rw == READ) {
                 copy_from_brd(mem + off, brd, sector, len);
                 flush_dcache_page(page);
-        } else
+        } else {
+                flush_dcache_page(page);
                 copy_to_brd(brd, mem + off, sector, len);
+        }
         kunmap_atomic(mem, KM_USER0);
 
 out:
@@ -436,6 +438,7 @@ static struct brd_device *brd_alloc(int i)
         if (!brd->brd_queue)
                 goto out_free_dev;
         blk_queue_make_request(brd->brd_queue, brd_make_request);
+        blk_queue_ordered(brd->brd_queue, QUEUE_ORDERED_TAG, NULL);
         blk_queue_max_sectors(brd->brd_queue, 1024);
         blk_queue_bounce_limit(brd->brd_queue, BLK_BOUNCE_ANY);
 
diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
index 0ef6f08aa6ea..4d4d5e0d3fa6 100644
--- a/drivers/block/cciss.c
+++ b/drivers/block/cciss.c
@@ -3505,7 +3505,7 @@ static __devinit int cciss_message(struct pci_dev *pdev, unsigned char opcode, u
         /* The Inbound Post Queue only accepts 32-bit physical addresses for the
            CCISS commands, so they must be allocated from the lower 4GiB of
            memory. */
-        err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
+        err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
         if (err) {
                 iounmap(vaddr);
                 return -ENOMEM;
diff --git a/drivers/block/hd.c b/drivers/block/hd.c
index 3c11f062a18c..baaa9e486e50 100644
--- a/drivers/block/hd.c
+++ b/drivers/block/hd.c
@@ -509,7 +509,6 @@ ok_to_write:
         if (i > 0) {
                 SET_HANDLER(&write_intr);
                 outsw(HD_DATA, req->buffer, 256);
-                local_irq_enable();
         } else {
 #if (HD_DELAY > 0)
                 last_req = read_timer();
@@ -541,8 +540,7 @@ static void hd_times_out(unsigned long dummy)
         if (!CURRENT)
                 return;
 
-        disable_irq(HD_IRQ);
-        local_irq_enable();
+        spin_lock_irq(hd_queue->queue_lock);
         reset = 1;
         name = CURRENT->rq_disk->disk_name;
         printk("%s: timeout\n", name);
@@ -552,9 +550,8 @@ static void hd_times_out(unsigned long dummy)
 #endif
                 end_request(CURRENT, 0);
         }
-        local_irq_disable();
         hd_request();
-        enable_irq(HD_IRQ);
+        spin_unlock_irq(hd_queue->queue_lock);
 }
 
 static int do_special_op(struct hd_i_struct *disk, struct request *req)
@@ -592,7 +589,6 @@ static void hd_request(void)
                 return;
 repeat:
         del_timer(&device_timer);
-        local_irq_enable();
 
         req = CURRENT;
         if (!req) {
@@ -601,7 +597,6 @@ repeat:
         }
 
         if (reset) {
-                local_irq_disable();
                 reset_hd();
                 return;
         }
@@ -660,9 +655,7 @@ repeat:
 
 static void do_hd_request(struct request_queue *q)
 {
-        disable_irq(HD_IRQ);
         hd_request();
-        enable_irq(HD_IRQ);
 }
 
 static int hd_getgeo(struct block_device *bdev, struct hd_geometry *geo)
@@ -684,12 +677,16 @@ static irqreturn_t hd_interrupt(int irq, void *dev_id)
 {
         void (*handler)(void) = do_hd;
 
+        spin_lock(hd_queue->queue_lock);
+
         do_hd = NULL;
         del_timer(&device_timer);
         if (!handler)
                 handler = unexpected_hd_interrupt;
         handler();
-        local_irq_enable();
+
+        spin_unlock(hd_queue->queue_lock);
+
         return IRQ_HANDLED;
 }
 
diff --git a/drivers/block/mg_disk.c b/drivers/block/mg_disk.c
index fb39d9aa3cdc..f3898353d0a8 100644
--- a/drivers/block/mg_disk.c
+++ b/drivers/block/mg_disk.c
@@ -79,7 +79,7 @@ static void mg_dump_status(const char *msg, unsigned int stat,
                         if (host->breq) {
                                 req = elv_next_request(host->breq);
                                 if (req)
-                                        printk(", sector=%ld", req->sector);
+                                        printk(", sector=%u", (u32)req->sector);
                         }
 
                 }
@@ -160,11 +160,16 @@ static irqreturn_t mg_irq(int irq, void *dev_id)
         struct mg_host *host = dev_id;
         void (*handler)(struct mg_host *) = host->mg_do_intr;
 
-        host->mg_do_intr = 0;
+        spin_lock(&host->lock);
+
+        host->mg_do_intr = NULL;
         del_timer(&host->timer);
         if (!handler)
                 handler = mg_unexpected_intr;
         handler(host);
+
+        spin_unlock(&host->lock);
+
         return IRQ_HANDLED;
 }
 
@@ -319,7 +324,7 @@ static void mg_read(struct request *req)
 
         remains = req->nr_sectors;
 
-        if (mg_out(host, req->sector, req->nr_sectors, MG_CMD_RD, 0) !=
+        if (mg_out(host, req->sector, req->nr_sectors, MG_CMD_RD, NULL) !=
                         MG_ERR_NONE)
                 mg_bad_rw_intr(host);
 
@@ -363,7 +368,7 @@ static void mg_write(struct request *req)
 
         remains = req->nr_sectors;
 
-        if (mg_out(host, req->sector, req->nr_sectors, MG_CMD_WR, 0) !=
+        if (mg_out(host, req->sector, req->nr_sectors, MG_CMD_WR, NULL) !=
                         MG_ERR_NONE) {
                 mg_bad_rw_intr(host);
                 return;
@@ -521,9 +526,11 @@ void mg_times_out(unsigned long data)
         char *name;
         struct request *req;
 
+        spin_lock_irq(&host->lock);
+
         req = elv_next_request(host->breq);
         if (!req)
-                return;
+                goto out_unlock;
 
         host->mg_do_intr = NULL;
 
@@ -534,6 +541,8 @@ void mg_times_out(unsigned long data)
         mg_bad_rw_intr(host);
 
         mg_request(host->breq);
+out_unlock:
+        spin_unlock_irq(&host->lock);
 }
 
 static void mg_request_poll(struct request_queue *q)
diff --git a/drivers/block/ub.c b/drivers/block/ub.c
index 69b7f8e77596..689cd27ac890 100644
--- a/drivers/block/ub.c
+++ b/drivers/block/ub.c
@@ -1025,6 +1025,7 @@ static void ub_scsi_urb_compl(struct ub_dev *sc, struct ub_scsi_cmd *cmd)
 {
         struct urb *urb = &sc->work_urb;
         struct bulk_cs_wrap *bcs;
+        int endp;
         int len;
         int rc;
 
@@ -1033,6 +1034,10 @@ static void ub_scsi_urb_compl(struct ub_dev *sc, struct ub_scsi_cmd *cmd)
                 return;
         }
 
+        endp = usb_pipeendpoint(sc->last_pipe);
+        if (usb_pipein(sc->last_pipe))
+                endp |= USB_DIR_IN;
+
         if (cmd->state == UB_CMDST_CLEAR) {
                 if (urb->status == -EPIPE) {
                         /*
@@ -1048,9 +1053,7 @@ static void ub_scsi_urb_compl(struct ub_dev *sc, struct ub_scsi_cmd *cmd)
                  * We ignore the result for the halt clear.
                  */
 
-                /* reset the endpoint toggle */
-                usb_settoggle(sc->dev, usb_pipeendpoint(sc->last_pipe),
-                        usb_pipeout(sc->last_pipe), 0);
+                usb_reset_endpoint(sc->dev, endp);
 
                 ub_state_sense(sc, cmd);
 
@@ -1065,9 +1068,7 @@ static void ub_scsi_urb_compl(struct ub_dev *sc, struct ub_scsi_cmd *cmd)
                  * We ignore the result for the halt clear.
                  */
 
-                /* reset the endpoint toggle */
-                usb_settoggle(sc->dev, usb_pipeendpoint(sc->last_pipe),
-                        usb_pipeout(sc->last_pipe), 0);
+                usb_reset_endpoint(sc->dev, endp);
 
                 ub_state_stat(sc, cmd);
 
@@ -1082,9 +1083,7 @@ static void ub_scsi_urb_compl(struct ub_dev *sc, struct ub_scsi_cmd *cmd)
                  * We ignore the result for the halt clear.
                  */
 
-                /* reset the endpoint toggle */
-                usb_settoggle(sc->dev, usb_pipeendpoint(sc->last_pipe),
-                        usb_pipeout(sc->last_pipe), 0);
+                usb_reset_endpoint(sc->dev, endp);
 
                 ub_state_stat_counted(sc, cmd);
 
@@ -2119,8 +2118,7 @@ static int ub_probe_clear_stall(struct ub_dev *sc, int stalled_pipe)
         del_timer_sync(&timer);
         usb_kill_urb(&sc->work_urb);
 
-        /* reset the endpoint toggle */
-        usb_settoggle(sc->dev, endp, usb_pipeout(sc->last_pipe), 0);
+        usb_reset_endpoint(sc->dev, endp);
 
         return 0;
 }
diff --git a/drivers/block/umem.c b/drivers/block/umem.c
index 9744d59a69f2..858c34dd032d 100644
--- a/drivers/block/umem.c
+++ b/drivers/block/umem.c
@@ -906,6 +906,7 @@ static int __devinit mm_pci_probe(struct pci_dev *dev,
                 goto failed_alloc;
 
         blk_queue_make_request(card->queue, mm_make_request);
+        card->queue->queue_lock = &card->lock;
         card->queue->queuedata = card;
         card->queue->unplug_fn = mm_unplug_device;