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, 50 insertions, 12 deletions

diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c
index 26f9ec28f56c..b1cd04087d6a 100644
--- a/block/blk-sysfs.c
+++ b/block/blk-sysfs.c
@@ -95,21 +95,36 @@ queue_ra_store(struct request_queue *q, const char *page, size_t count)
 
 static ssize_t queue_max_sectors_show(struct request_queue *q, char *page)
 {
-        int max_sectors_kb = q->max_sectors >> 1;
+        int max_sectors_kb = queue_max_sectors(q) >> 1;
 
         return queue_var_show(max_sectors_kb, (page));
 }
 
-static ssize_t queue_hw_sector_size_show(struct request_queue *q, char *page)
+static ssize_t queue_logical_block_size_show(struct request_queue *q, char *page)
 {
-        return queue_var_show(q->hardsect_size, page);
+        return queue_var_show(queue_logical_block_size(q), page);
+}
+
+static ssize_t queue_physical_block_size_show(struct request_queue *q, char *page)
+{
+        return queue_var_show(queue_physical_block_size(q), page);
+}
+
+static ssize_t queue_io_min_show(struct request_queue *q, char *page)
+{
+        return queue_var_show(queue_io_min(q), page);
+}
+
+static ssize_t queue_io_opt_show(struct request_queue *q, char *page)
+{
+        return queue_var_show(queue_io_opt(q), page);
 }
 
 static ssize_t
 queue_max_sectors_store(struct request_queue *q, const char *page, size_t count)
 {
         unsigned long max_sectors_kb,
-                        max_hw_sectors_kb = q->max_hw_sectors >> 1,
+                max_hw_sectors_kb = queue_max_hw_sectors(q) >> 1,
                         page_kb = 1 << (PAGE_CACHE_SHIFT - 10);
         ssize_t ret = queue_var_store(&max_sectors_kb, page, count);
 
@@ -117,7 +132,7 @@ queue_max_sectors_store(struct request_queue *q, const char *page, size_t count)
                 return -EINVAL;
 
         spin_lock_irq(q->queue_lock);
-        q->max_sectors = max_sectors_kb << 1;
+        blk_queue_max_sectors(q, max_sectors_kb << 1);
         spin_unlock_irq(q->queue_lock);
 
         return ret;
@@ -125,7 +140,7 @@ queue_max_sectors_store(struct request_queue *q, const char *page, size_t count)
 
 static ssize_t queue_max_hw_sectors_show(struct request_queue *q, char *page)
 {
-        int max_hw_sectors_kb = q->max_hw_sectors >> 1;
+        int max_hw_sectors_kb = queue_max_hw_sectors(q) >> 1;
 
         return queue_var_show(max_hw_sectors_kb, (page));
 }
@@ -249,7 +264,27 @@ static struct queue_sysfs_entry queue_iosched_entry = {
 
 static struct queue_sysfs_entry queue_hw_sector_size_entry = {
         .attr = {.name = "hw_sector_size", .mode = S_IRUGO },
-        .show = queue_hw_sector_size_show,
+        .show = queue_logical_block_size_show,
+};
+
+static struct queue_sysfs_entry queue_logical_block_size_entry = {
+        .attr = {.name = "logical_block_size", .mode = S_IRUGO },
+        .show = queue_logical_block_size_show,
+};
+
+static struct queue_sysfs_entry queue_physical_block_size_entry = {
+        .attr = {.name = "physical_block_size", .mode = S_IRUGO },
+        .show = queue_physical_block_size_show,
+};
+
+static struct queue_sysfs_entry queue_io_min_entry = {
+        .attr = {.name = "minimum_io_size", .mode = S_IRUGO },
+        .show = queue_io_min_show,
+};
+
+static struct queue_sysfs_entry queue_io_opt_entry = {
+        .attr = {.name = "optimal_io_size", .mode = S_IRUGO },
+        .show = queue_io_opt_show,
 };
 
 static struct queue_sysfs_entry queue_nonrot_entry = {
@@ -283,6 +318,10 @@ static struct attribute *default_attrs[] = {
         &queue_max_sectors_entry.attr,
         &queue_iosched_entry.attr,
         &queue_hw_sector_size_entry.attr,
+        &queue_logical_block_size_entry.attr,
+        &queue_physical_block_size_entry.attr,
+        &queue_io_min_entry.attr,
+        &queue_io_opt_entry.attr,
         &queue_nonrot_entry.attr,
         &queue_nomerges_entry.attr,
         &queue_rq_affinity_entry.attr,
@@ -394,16 +433,15 @@ int blk_register_queue(struct gendisk *disk)
         if (ret)
                 return ret;
 
-        if (!q->request_fn)
-                return 0;
-
-        ret = kobject_add(&q->kobj, kobject_get(&dev->kobj),
-                          "%s", "queue");
+        ret = kobject_add(&q->kobj, kobject_get(&dev->kobj), "%s", "queue");
         if (ret < 0)
                 return ret;
 
         kobject_uevent(&q->kobj, KOBJ_ADD);
 
+        if (!q->request_fn)
+                return 0;
+
         ret = elv_register_queue(q);
         if (ret) {
                 kobject_uevent(&q->kobj, KOBJ_REMOVE);