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

* 'sg' of git://git.kernel.dk/linux-2.6-block:
  Add CONFIG_DEBUG_SG sg validation
  Change table chaining layout
  Update arch/ to use sg helpers
  Update swiotlb to use sg helpers
  Update net/ to use sg helpers
  Update fs/ to use sg helpers
  [SG] Update drivers to use sg helpers
  [SG] Update crypto/ to sg helpers
  [SG] Update block layer to use sg helpers
  [SG] Add helpers for manipulating SG entries

4 files changed, 14 insertions, 15 deletions

diff --git a/arch/sparc/kernel/ioport.c b/arch/sparc/kernel/ioport.c
index 9c3ed88853f3..97aa50d1e4ae 100644
--- a/arch/sparc/kernel/ioport.c
+++ b/arch/sparc/kernel/ioport.c
@@ -727,9 +727,8 @@ int pci_map_sg(struct pci_dev *hwdev, struct scatterlist *sgl, int nents,
         BUG_ON(direction == PCI_DMA_NONE);
         /* IIep is write-through, not flushing. */
         for_each_sg(sgl, sg, nents, n) {
-                BUG_ON(page_address(sg->page) == NULL);
-                sg->dvma_address =
-                        virt_to_phys(page_address(sg->page)) + sg->offset;
+                BUG_ON(page_address(sg_page(sg)) == NULL);
+                sg->dvma_address = virt_to_phys(sg_virt(sg));
                 sg->dvma_length = sg->length;
         }
         return nents;
@@ -748,9 +747,9 @@ void pci_unmap_sg(struct pci_dev *hwdev, struct scatterlist *sgl, int nents,
         BUG_ON(direction == PCI_DMA_NONE);
         if (direction != PCI_DMA_TODEVICE) {
                 for_each_sg(sgl, sg, nents, n) {
-                        BUG_ON(page_address(sg->page) == NULL);
+                        BUG_ON(page_address(sg_page(sg)) == NULL);
                         mmu_inval_dma_area(
-                            (unsigned long) page_address(sg->page),
+                            (unsigned long) page_address(sg_page(sg)),
                             (sg->length + PAGE_SIZE-1) & PAGE_MASK);
                 }
         }
@@ -798,9 +797,9 @@ void pci_dma_sync_sg_for_cpu(struct pci_dev *hwdev, struct scatterlist *sgl, int
         BUG_ON(direction == PCI_DMA_NONE);
         if (direction != PCI_DMA_TODEVICE) {
                 for_each_sg(sgl, sg, nents, n) {
-                        BUG_ON(page_address(sg->page) == NULL);
+                        BUG_ON(page_address(sg_page(sg)) == NULL);
                         mmu_inval_dma_area(
-                            (unsigned long) page_address(sg->page),
+                            (unsigned long) page_address(sg_page(sg)),
                             (sg->length + PAGE_SIZE-1) & PAGE_MASK);
                 }
         }
@@ -814,9 +813,9 @@ void pci_dma_sync_sg_for_device(struct pci_dev *hwdev, struct scatterlist *sgl,
         BUG_ON(direction == PCI_DMA_NONE);
         if (direction != PCI_DMA_TODEVICE) {
                 for_each_sg(sgl, sg, nents, n) {
-                        BUG_ON(page_address(sg->page) == NULL);
+                        BUG_ON(page_address(sg_page(sg)) == NULL);
                         mmu_inval_dma_area(
-                            (unsigned long) page_address(sg->page),
+                            (unsigned long) page_address(sg_page(sg)),
                             (sg->length + PAGE_SIZE-1) & PAGE_MASK);
                 }
         }
diff --git a/arch/sparc/mm/io-unit.c b/arch/sparc/mm/io-unit.c
index 375b4db63704..1666087c5b80 100644
--- a/arch/sparc/mm/io-unit.c
+++ b/arch/sparc/mm/io-unit.c
@@ -144,7 +144,7 @@ static void iounit_get_scsi_sgl(struct scatterlist *sg, int sz, struct sbus_bus
         spin_lock_irqsave(&iounit->lock, flags);
         while (sz != 0) {
                 --sz;
-                sg->dvma_address = iounit_get_area(iounit, (unsigned long)page_address(sg->page) + sg->offset, sg->length);
+                sg->dvma_address = iounit_get_area(iounit, sg_virt(sg), sg->length);
                 sg->dvma_length = sg->length;
                 sg = sg_next(sg);
         }
diff --git a/arch/sparc/mm/iommu.c b/arch/sparc/mm/iommu.c
index 283656d9f6ea..4b934270f05e 100644
--- a/arch/sparc/mm/iommu.c
+++ b/arch/sparc/mm/iommu.c
@@ -238,7 +238,7 @@ static void iommu_get_scsi_sgl_noflush(struct scatterlist *sg, int sz, struct sb
         while (sz != 0) {
                 --sz;
                 n = (sg->length + sg->offset + PAGE_SIZE-1) >> PAGE_SHIFT;
-                sg->dvma_address = iommu_get_one(sg->page, n, sbus) + sg->offset;
+                sg->dvma_address = iommu_get_one(sg_page(sg), n, sbus) + sg->offset;
                 sg->dvma_length = (__u32) sg->length;
                 sg = sg_next(sg);
         }
@@ -252,7 +252,7 @@ static void iommu_get_scsi_sgl_gflush(struct scatterlist *sg, int sz, struct sbu
         while (sz != 0) {
                 --sz;
                 n = (sg->length + sg->offset + PAGE_SIZE-1) >> PAGE_SHIFT;
-                sg->dvma_address = iommu_get_one(sg->page, n, sbus) + sg->offset;
+                sg->dvma_address = iommu_get_one(sg_page(sg), n, sbus) + sg->offset;
                 sg->dvma_length = (__u32) sg->length;
                 sg = sg_next(sg);
         }
@@ -273,7 +273,7 @@ static void iommu_get_scsi_sgl_pflush(struct scatterlist *sg, int sz, struct sbu
                  * XXX Is this a good assumption?
                  * XXX What if someone else unmaps it here and races us?
                  */
-                if ((page = (unsigned long) page_address(sg->page)) != 0) {
+                if ((page = (unsigned long) page_address(sg_page(sg))) != 0) {
                         for (i = 0; i < n; i++) {
                                 if (page != oldpage) {  /* Already flushed? */
                                         flush_page_for_dma(page);
@@ -283,7 +283,7 @@ static void iommu_get_scsi_sgl_pflush(struct scatterlist *sg, int sz, struct sbu
                         }
                 }
 
-                sg->dvma_address = iommu_get_one(sg->page, n, sbus) + sg->offset;
+                sg->dvma_address = iommu_get_one(sg_page(sg), n, sbus) + sg->offset;
                 sg->dvma_length = (__u32) sg->length;
                 sg = sg_next(sg);
         }
diff --git a/arch/sparc/mm/sun4c.c b/arch/sparc/mm/sun4c.c
index ee6708fc4492..a2cc141291c7 100644
--- a/arch/sparc/mm/sun4c.c
+++ b/arch/sparc/mm/sun4c.c
@@ -1228,7 +1228,7 @@ static void sun4c_get_scsi_sgl(struct scatterlist *sg, int sz, struct sbus_bus *
 {
         while (sz != 0) {
                 --sz;
-                sg->dvma_address = (__u32)sun4c_lockarea(page_address(sg->page) + sg->offset, sg->length);
+                sg->dvma_address = (__u32)sun4c_lockarea(sg_virt(sg), sg->length);
                 sg->dvma_length = sg->length;
                 sg = sg_next(sg);
         }