Merge branch 'master'

4 files changed, 22 insertions, 21 deletions

diff --git a/drivers/scsi/arm/scsi.h b/drivers/scsi/arm/scsi.h
index 48e1c4d9738b..19937640e2e7 100644
--- a/drivers/scsi/arm/scsi.h
+++ b/drivers/scsi/arm/scsi.h
@@ -10,6 +10,8 @@
  *  Commonly used scsi driver functions.
  */
 
+#include <linux/scatterlist.h>
+
 #define BELT_AND_BRACES
 
 /*
@@ -22,9 +24,7 @@ static inline int copy_SCp_to_sg(struct scatterlist *sg, Scsi_Pointer *SCp, int
 
         BUG_ON(bufs + 1 > max);
 
-        sg->page   = virt_to_page(SCp->ptr);
-        sg->offset = offset_in_page(SCp->ptr);
-        sg->length = SCp->this_residual;
+        sg_set_buf(sg, SCp->ptr, SCp->this_residual);
 
         if (bufs)
                 memcpy(sg + 1, SCp->buffer + 1,
diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c
index d2f71a2331bb..771bc7d376bc 100644
--- a/drivers/scsi/libata-core.c
+++ b/drivers/scsi/libata-core.c
@@ -49,6 +49,7 @@
 #include <linux/suspend.h>
 #include <linux/workqueue.h>
 #include <linux/jiffies.h>
+#include <linux/scatterlist.h>
 #include <scsi/scsi.h>
 #include "scsi.h"
 #include "scsi_priv.h"
@@ -2554,19 +2555,12 @@ void ata_qc_prep(struct ata_queued_cmd *qc)
 
 void ata_sg_init_one(struct ata_queued_cmd *qc, void *buf, unsigned int buflen)
 {
-        struct scatterlist *sg;
-
         qc->flags |= ATA_QCFLAG_SINGLE;
 
-        memset(&qc->sgent, 0, sizeof(qc->sgent));
         qc->sg = &qc->sgent;
         qc->n_elem = 1;
         qc->buf_virt = buf;
-
-        sg = qc->sg;
-        sg->page = virt_to_page(buf);
-        sg->offset = (unsigned long) buf & ~PAGE_MASK;
-        sg->length = buflen;
+        sg_init_one(qc->sg, buf, buflen);
 }
 
 /**
diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
index 861e51375d70..d86d5c26061d 100644
--- a/drivers/scsi/sg.c
+++ b/drivers/scsi/sg.c
@@ -49,6 +49,7 @@ static int sg_version_num = 30533;	/* 2 digits for each component */
 #include <linux/seq_file.h>
 #include <linux/blkdev.h>
 #include <linux/delay.h>
+#include <linux/scatterlist.h>
 
 #include "scsi.h"
 #include <scsi/scsi_dbg.h>
@@ -1886,13 +1887,17 @@ st_unmap_user_pages(struct scatterlist *sgl, const unsigned int nr_pages,
         int i;
 
         for (i=0; i < nr_pages; i++) {
-                if (dirtied && !PageReserved(sgl[i].page))
-                        SetPageDirty(sgl[i].page);
-                /* unlock_page(sgl[i].page); */
+                struct page *page = sgl[i].page;
+
+                /* XXX: just for debug. Remove when PageReserved is removed */
+                BUG_ON(PageReserved(page));
+                if (dirtied)
+                        SetPageDirty(page);
+                /* unlock_page(page); */
                 /* FIXME: cache flush missing for rw==READ
                  * FIXME: call the correct reference counting function
                  */
-                page_cache_release(sgl[i].page);
+                page_cache_release(page);
         }
 
         return 0;
@@ -1992,9 +1997,7 @@ sg_build_indirect(Sg_scatter_hold * schp, Sg_fd * sfp, int buff_size)
                                 if (!p)
                                         break;
                         }
-                        sclp->page = virt_to_page(p);
-                        sclp->offset = offset_in_page(p);
-                        sclp->length = ret_sz;
+                        sg_set_buf(sclp, p, ret_sz);
 
                         SCSI_LOG_TIMEOUT(5, printk("sg_build_build: k=%d, a=0x%p, len=%d\n",
                                           k, sg_scatg2virt(sclp), ret_sz));
diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c
index 5eb54d8019b4..da9766283bd7 100644
--- a/drivers/scsi/st.c
+++ b/drivers/scsi/st.c
@@ -4526,12 +4526,16 @@ static int sgl_unmap_user_pages(struct scatterlist *sgl, const unsigned int nr_p
         int i;
 
         for (i=0; i < nr_pages; i++) {
-                if (dirtied && !PageReserved(sgl[i].page))
-                        SetPageDirty(sgl[i].page);
+                struct page *page = sgl[i].page;
+
+                /* XXX: just for debug. Remove when PageReserved is removed */
+                BUG_ON(PageReserved(page));
+                if (dirtied)
+                        SetPageDirty(page);
                 /* FIXME: cache flush missing for rw==READ
                  * FIXME: call the correct reference counting function
                  */
-                page_cache_release(sgl[i].page);
+                page_cache_release(page);
         }
 
         return 0;