56 files changed, 214 insertions, 237 deletions

diff --git a/drivers/scsi/3w-9xxx.c b/drivers/scsi/3w-9xxx.c
index fb14014ee16e..afb262b4be15 100644
--- a/drivers/scsi/3w-9xxx.c
+++ b/drivers/scsi/3w-9xxx.c
@@ -1840,7 +1840,7 @@ static int twa_scsiop_execute_scsi(TW_Device_Extension *tw_dev, int request_id,
                             (scsi_bufflen(srb) < TW_MIN_SGL_LENGTH)) {
                                 if (srb->sc_data_direction == DMA_TO_DEVICE || srb->sc_data_direction == DMA_BIDIRECTIONAL) {
                                         struct scatterlist *sg = scsi_sglist(srb);
-                                        char *buf = kmap_atomic(sg->page, KM_IRQ0) + sg->offset;
+                                        char *buf = kmap_atomic(sg_page(sg), KM_IRQ0) + sg->offset;
                                         memcpy(tw_dev->generic_buffer_virt[request_id], buf, sg->length);
                                         kunmap_atomic(buf - sg->offset, KM_IRQ0);
                                 }
@@ -1919,7 +1919,7 @@ static void twa_scsiop_execute_scsi_complete(TW_Device_Extension *tw_dev, int re
                         char *buf;
                         unsigned long flags = 0;
                         local_irq_save(flags);
-                        buf = kmap_atomic(sg->page, KM_IRQ0) + sg->offset;
+                        buf = kmap_atomic(sg_page(sg), KM_IRQ0) + sg->offset;
                         memcpy(buf, tw_dev->generic_buffer_virt[request_id], sg->length);
                         kunmap_atomic(buf - sg->offset, KM_IRQ0);
                         local_irq_restore(flags);
diff --git a/drivers/scsi/3w-xxxx.c b/drivers/scsi/3w-xxxx.c
index a64153b96034..59716ebeb10c 100644
--- a/drivers/scsi/3w-xxxx.c
+++ b/drivers/scsi/3w-xxxx.c
@@ -1469,7 +1469,7 @@ static void tw_transfer_internal(TW_Device_Extension *tw_dev, int request_id,
         struct scatterlist *sg = scsi_sglist(cmd);
 
         local_irq_save(flags);
-        buf = kmap_atomic(sg->page, KM_IRQ0) + sg->offset;
+        buf = kmap_atomic(sg_page(sg), KM_IRQ0) + sg->offset;
         transfer_len = min(sg->length, len);
 
         memcpy(buf, data, transfer_len);
diff --git a/drivers/scsi/FlashPoint.c b/drivers/scsi/FlashPoint.c
index a7f916c0c9cd..1c9078191d9e 100644
--- a/drivers/scsi/FlashPoint.c
+++ b/drivers/scsi/FlashPoint.c
@@ -25,9 +25,6 @@
 
 #define FAILURE         0xFFFFFFFFL
 
-#define BIT(x)          ((unsigned char)(1<<(x)))       /* single-bit mask in bit position x */
-#define BITW(x)          ((unsigned short)(1<<(x)))     /* single-bit mask in bit position x */
-
 struct sccb;
 typedef void (*CALL_BK_FN) (struct sccb *);
 
@@ -374,9 +371,9 @@ typedef struct SCCBscam_info {
 #define  SCAM_ENABLED   BIT(2)
 #define  SCAM_LEVEL2    BIT(3)
 
-#define RENEGO_ENA              BITW(10)
-#define CONNIO_ENA              BITW(11)
-#define  GREEN_PC_ENA   BITW(12)
+#define RENEGO_ENA              BIT(10)
+#define CONNIO_ENA              BIT(11)
+#define  GREEN_PC_ENA   BIT(12)
 
 #define  AUTO_RATE_00   00
 #define  AUTO_RATE_05   01
@@ -511,23 +508,23 @@ typedef struct SCCBscam_info {
 
 #define  hp_intena               0x40
 
-#define  RESET           BITW(7)
-#define  PROG_HLT                BITW(6)
-#define  PARITY          BITW(5)
-#define  FIFO            BITW(4)
-#define  SEL             BITW(3)
-#define  SCAM_SEL                BITW(2)
-#define  RSEL            BITW(1)
-#define  TIMEOUT                 BITW(0)
-#define  BUS_FREE                BITW(15)
-#define  XFER_CNT_0      BITW(14)
-#define  PHASE           BITW(13)
-#define  IUNKWN          BITW(12)
-#define  ICMD_COMP       BITW(11)
-#define  ITICKLE                 BITW(10)
-#define  IDO_STRT                BITW(9)
-#define  ITAR_DISC       BITW(8)
-#define  AUTO_INT                (BITW(12)+BITW(11)+BITW(10)+BITW(9)+BITW(8))
+#define  RESET           BIT(7)
+#define  PROG_HLT                BIT(6)
+#define  PARITY          BIT(5)
+#define  FIFO            BIT(4)
+#define  SEL             BIT(3)
+#define  SCAM_SEL                BIT(2)
+#define  RSEL            BIT(1)
+#define  TIMEOUT                 BIT(0)
+#define  BUS_FREE                BIT(15)
+#define  XFER_CNT_0      BIT(14)
+#define  PHASE           BIT(13)
+#define  IUNKWN          BIT(12)
+#define  ICMD_COMP       BIT(11)
+#define  ITICKLE                 BIT(10)
+#define  IDO_STRT                BIT(9)
+#define  ITAR_DISC       BIT(8)
+#define  AUTO_INT                (BIT(12)+BIT(11)+BIT(10)+BIT(9)+BIT(8))
 #define  CLR_ALL_INT     0xFFFF
 #define  CLR_ALL_INT_1   0xFF00
 
@@ -674,37 +671,37 @@ typedef struct SCCBscam_info {
 #define  BIOS_DATA_OFFSET     0x60
 #define  BIOS_RELATIVE_CARD   0x64
 
-#define  AR3      (BITW(9) + BITW(8))
-#define  SDATA    BITW(10)
+#define  AR3      (BIT(9) + BIT(8))
+#define  SDATA    BIT(10)
 
-#define  CRD_OP   BITW(11)      /* Cmp Reg. w/ Data */
+#define  CRD_OP   BIT(11)       /* Cmp Reg. w/ Data */
 
-#define  CRR_OP   BITW(12)      /* Cmp Reg. w. Reg. */
+#define  CRR_OP   BIT(12)       /* Cmp Reg. w. Reg. */
 
-#define  CPE_OP   (BITW(14)+BITW(11))   /* Cmp SCSI phs & Branch EQ */
+#define  CPE_OP   (BIT(14)+BIT(11))     /* Cmp SCSI phs & Branch EQ */
 
-#define  CPN_OP   (BITW(14)+BITW(12))   /* Cmp SCSI phs & Branch NOT EQ */
+#define  CPN_OP   (BIT(14)+BIT(12))     /* Cmp SCSI phs & Branch NOT EQ */
 
 #define  ADATA_OUT   0x00
-#define  ADATA_IN    BITW(8)
-#define  ACOMMAND    BITW(10)
-#define  ASTATUS     (BITW(10)+BITW(8))
-#define  AMSG_OUT    (BITW(10)+BITW(9))
-#define  AMSG_IN     (BITW(10)+BITW(9)+BITW(8))
+#define  ADATA_IN    BIT(8)
+#define  ACOMMAND    BIT(10)
+#define  ASTATUS     (BIT(10)+BIT(8))
+#define  AMSG_OUT    (BIT(10)+BIT(9))
+#define  AMSG_IN     (BIT(10)+BIT(9)+BIT(8))
 
-#define  BRH_OP   BITW(13)      /* Branch */
+#define  BRH_OP   BIT(13)       /* Branch */
 
 #define  ALWAYS   0x00
-#define  EQUAL    BITW(8)
-#define  NOT_EQ   BITW(9)
+#define  EQUAL    BIT(8)
+#define  NOT_EQ   BIT(9)
 
-#define  TCB_OP   (BITW(13)+BITW(11))   /* Test condition & branch */
+#define  TCB_OP   (BIT(13)+BIT(11))     /* Test condition & branch */
 
-#define  FIFO_0      BITW(10)
+#define  FIFO_0      BIT(10)
 
-#define  MPM_OP   BITW(15)      /* Match phase and move data */
+#define  MPM_OP   BIT(15)       /* Match phase and move data */
 
-#define  MRR_OP   BITW(14)      /* Move DReg. to Reg. */
+#define  MRR_OP   BIT(14)       /* Move DReg. to Reg. */
 
 #define  S_IDREG  (BIT(2)+BIT(1)+BIT(0))
 
@@ -712,9 +709,9 @@ typedef struct SCCBscam_info {
 #define  D_AR1    BIT(0)
 #define  D_BUCKET (BIT(2) + BIT(1) + BIT(0))
 
-#define  RAT_OP      (BITW(14)+BITW(13)+BITW(11))
+#define  RAT_OP      (BIT(14)+BIT(13)+BIT(11))
 
-#define  SSI_OP      (BITW(15)+BITW(11))
+#define  SSI_OP      (BIT(15)+BIT(11))
 
 #define  SSI_ITAR_DISC  (ITAR_DISC >> 8)
 #define  SSI_IDO_STRT   (IDO_STRT >> 8)
diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig
index 30905cebefbb..a5763c6e9362 100644
--- a/drivers/scsi/Kconfig
+++ b/drivers/scsi/Kconfig
@@ -521,7 +521,7 @@ config SCSI_DPT_I2O
 
 config SCSI_ADVANSYS
         tristate "AdvanSys SCSI support"
-        depends on SCSI
+        depends on SCSI && VIRT_TO_BUS
         depends on ISA || EISA || PCI
         help
           This is a driver for all SCSI host adapters manufactured by
diff --git a/drivers/scsi/NCR5380.c b/drivers/scsi/NCR5380.c
index 988f0bc5eda5..2597209183d0 100644
--- a/drivers/scsi/NCR5380.c
+++ b/drivers/scsi/NCR5380.c
@@ -298,8 +298,7 @@ static __inline__ void initialize_SCp(Scsi_Cmnd * cmd)
         if (cmd->use_sg) {
                 cmd->SCp.buffer = (struct scatterlist *) cmd->request_buffer;
                 cmd->SCp.buffers_residual = cmd->use_sg - 1;
-                cmd->SCp.ptr = page_address(cmd->SCp.buffer->page)+
-                               cmd->SCp.buffer->offset;
+                cmd->SCp.ptr = sg_virt(cmd->SCp.buffer);
                 cmd->SCp.this_residual = cmd->SCp.buffer->length;
         } else {
                 cmd->SCp.buffer = NULL;
@@ -2143,8 +2142,7 @@ static void NCR5380_information_transfer(struct Scsi_Host *instance) {
                                         ++cmd->SCp.buffer;
                                         --cmd->SCp.buffers_residual;
                                         cmd->SCp.this_residual = cmd->SCp.buffer->length;
-                                        cmd->SCp.ptr = page_address(cmd->SCp.buffer->page)+
-                                                       cmd->SCp.buffer->offset;
+                                        cmd->SCp.ptr = sg_virt(cmd->SCp.buffer);
                                         dprintk(NDEBUG_INFORMATION, ("scsi%d : %d bytes and %d buffers left\n", instance->host_no, cmd->SCp.this_residual, cmd->SCp.buffers_residual));
                                 }
                                 /*
diff --git a/drivers/scsi/NCR53C9x.c b/drivers/scsi/NCR53C9x.c
index 96e8e29aa05d..5b0efc903918 100644
--- a/drivers/scsi/NCR53C9x.c
+++ b/drivers/scsi/NCR53C9x.c
@@ -927,7 +927,7 @@ static void esp_get_dmabufs(struct NCR_ESP *esp, Scsi_Cmnd *sp)
                         esp->dma_mmu_get_scsi_sgl(esp, sp);
                 else
                         sp->SCp.ptr =
-                                (char *) virt_to_phys((page_address(sp->SCp.buffer->page) + sp->SCp.buffer->offset));
+                                (char *) virt_to_phys(sg_virt(sp->SCp.buffer));
         }
 }
 
@@ -1748,7 +1748,7 @@ static inline void advance_sg(struct NCR_ESP *esp, Scsi_Cmnd *sp)
         if (esp->dma_advance_sg)
                 esp->dma_advance_sg (sp);
         else
-                sp->SCp.ptr = (char *) virt_to_phys((page_address(sp->SCp.buffer->page) + sp->SCp.buffer->offset));
+                sp->SCp.ptr = (char *) virt_to_phys(sg_virt(sp->SCp.buffer));
 
 }
 
diff --git a/drivers/scsi/NCR53c406a.c b/drivers/scsi/NCR53c406a.c
index 3168a1794849..137d065db3da 100644
--- a/drivers/scsi/NCR53c406a.c
+++ b/drivers/scsi/NCR53c406a.c
@@ -875,8 +875,7 @@ static void NCR53c406a_intr(void *dev_id)
                         outb(TRANSFER_INFO | DMA_OP, CMD_REG);
 #if USE_PIO
                         scsi_for_each_sg(current_SC, sg, scsi_sg_count(current_SC), i) {
-                                NCR53c406a_pio_write(page_address(sg->page) + sg->offset,
-                                                     sg->length);
+                                NCR53c406a_pio_write(sg_virt(sg), sg->length);
                         }
                         REG0;
 #endif                          /* USE_PIO */
@@ -897,8 +896,7 @@ static void NCR53c406a_intr(void *dev_id)
                         outb(TRANSFER_INFO | DMA_OP, CMD_REG);
 #if USE_PIO
                         scsi_for_each_sg(current_SC, sg, scsi_sg_count(current_SC), i) {
-                                NCR53c406a_pio_read(page_address(sg->page) + sg->offset,
-                                                    sg->length);
+                                NCR53c406a_pio_read(sg_virt(sg), sg->length);
                         }
                         REG0;
 #endif                          /* USE_PIO */
diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c
index 80e448d0f3db..a77ab8d693d4 100644
--- a/drivers/scsi/aacraid/aachba.c
+++ b/drivers/scsi/aacraid/aachba.c
@@ -356,7 +356,7 @@ static void aac_internal_transfer(struct scsi_cmnd *scsicmd, void *data, unsigne
         int transfer_len;
         struct scatterlist *sg = scsi_sglist(scsicmd);
 
-        buf = kmap_atomic(sg->page, KM_IRQ0) + sg->offset;
+        buf = kmap_atomic(sg_page(sg), KM_IRQ0) + sg->offset;
         transfer_len = min(sg->length, len + offset);
 
         transfer_len -= offset;
diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h
index 03b51025a8f4..9abba8b90f70 100644
--- a/drivers/scsi/aacraid/aacraid.h
+++ b/drivers/scsi/aacraid/aacraid.h
@@ -1526,7 +1526,7 @@ struct aac_mntent {
         __le32                  capacityhigh;
 };
 
-#define FSCS_NOTCLEAN   0x0001  /* fsck is neccessary before mounting */
+#define FSCS_NOTCLEAN   0x0001  /* fsck is necessary before mounting */
 #define FSCS_READONLY   0x0002  /* possible result of broken mirror */
 #define FSCS_HIDDEN     0x0004  /* should be ignored - set during a clear */
 
diff --git a/drivers/scsi/aha152x.c b/drivers/scsi/aha152x.c
index f08e71e0205a..ea8c69947644 100644
--- a/drivers/scsi/aha152x.c
+++ b/drivers/scsi/aha152x.c
@@ -1,6 +1,6 @@
 /* aha152x.c -- Adaptec AHA-152x driver
- * Author: Jürgen E. Fischer, fischer@norbit.de
- * Copyright 1993-2004 Jürgen E. Fischer
+ * Author: Jürgen E. Fischer, fischer@norbit.de
+ * Copyright 1993-2004 Jürgen E. Fischer
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the
@@ -357,7 +357,7 @@ enum {
         check_condition = 0x0800,       /* requesting sense after CHECK CONDITION */
 };
 
-MODULE_AUTHOR("Jürgen Fischer");
+MODULE_AUTHOR("Jürgen Fischer");
 MODULE_DESCRIPTION(AHA152X_REVID);
 MODULE_LICENSE("GPL");
 
@@ -613,7 +613,7 @@ struct aha152x_scdata {
 #define SCNEXT(SCpnt)           SCDATA(SCpnt)->next
 #define SCSEM(SCpnt)            SCDATA(SCpnt)->done
 
-#define SG_ADDRESS(buffer)      ((char *) (page_address((buffer)->page)+(buffer)->offset))
+#define SG_ADDRESS(buffer)      ((char *) sg_virt((buffer)))
 
 /* state handling */
 static void seldi_run(struct Scsi_Host *shpnt);
diff --git a/drivers/scsi/aha1542.c b/drivers/scsi/aha1542.c
index 961a1882cb7e..bbcc2c52d79f 100644
--- a/drivers/scsi/aha1542.c
+++ b/drivers/scsi/aha1542.c
@@ -49,7 +49,7 @@
 #include "aha1542.h"
 
 #define SCSI_BUF_PA(address)    isa_virt_to_bus(address)
-#define SCSI_SG_PA(sgent)       (isa_page_to_bus((sgent)->page) + (sgent)->offset)
+#define SCSI_SG_PA(sgent)       (isa_page_to_bus(sg_page((sgent))) + (sgent)->offset)
 
 static void BAD_DMA(void *address, unsigned int length)
 {
@@ -66,8 +66,7 @@ static void BAD_SG_DMA(Scsi_Cmnd * SCpnt,
                        int badseg)
 {
         printk(KERN_CRIT "sgpnt[%d:%d] page %p/0x%llx length %u\n",
-               badseg, nseg,
-               page_address(sgp->page) + sgp->offset,
+               badseg, nseg, sg_virt(sgp),
                (unsigned long long)SCSI_SG_PA(sgp),
                sgp->length);
 
@@ -712,8 +711,7 @@ static int aha1542_queuecommand(Scsi_Cmnd * SCpnt, void (*done) (Scsi_Cmnd *))
                                 printk(KERN_CRIT "Bad segment list supplied to aha1542.c (%d, %d)\n", SCpnt->use_sg, i);
                                 scsi_for_each_sg(SCpnt, sg, SCpnt->use_sg, i) {
                                         printk(KERN_CRIT "%d: %p %d\n", i,
-                                               (page_address(sg->page) +
-                                                sg->offset), sg->length);
+                                               sg_virt(sg), sg->length);
                                 };
                                 printk(KERN_CRIT "cptr %x: ", (unsigned int) cptr);
                                 ptr = (unsigned char *) &cptr[i];
diff --git a/drivers/scsi/aic7xxx/cam.h b/drivers/scsi/aic7xxx/cam.h
index 26f17e3fc45c..687aef6ef185 100644
--- a/drivers/scsi/aic7xxx/cam.h
+++ b/drivers/scsi/aic7xxx/cam.h
@@ -48,7 +48,7 @@ typedef enum {
         CAM_REQ_ABORTED,        /* CCB request aborted by the host */
         CAM_UA_ABORT,           /* Unable to abort CCB request */
         CAM_REQ_CMP_ERR,        /* CCB request completed with an error */
-        CAM_BUSY,               /* CAM subsytem is busy */
+        CAM_BUSY,               /* CAM subsystem is busy */
         CAM_REQ_INVALID,        /* CCB request was invalid */
         CAM_PATH_INVALID,       /* Supplied Path ID is invalid */
         CAM_SEL_TIMEOUT,        /* Target Selection Timeout */
diff --git a/drivers/scsi/arcmsr/arcmsr_hba.c b/drivers/scsi/arcmsr/arcmsr_hba.c
index f81777586b8f..f7a252885a5c 100644
--- a/drivers/scsi/arcmsr/arcmsr_hba.c
+++ b/drivers/scsi/arcmsr/arcmsr_hba.c
@@ -1343,7 +1343,7 @@ static int arcmsr_iop_message_xfer(struct AdapterControlBlock *acb, \
                                                 /* 4 bytes: Areca io control code */
 
         sg = scsi_sglist(cmd);
-        buffer = kmap_atomic(sg->page, KM_IRQ0) + sg->offset;
+        buffer = kmap_atomic(sg_page(sg), KM_IRQ0) + sg->offset;
         if (scsi_sg_count(cmd) > 1) {
                 retvalue = ARCMSR_MESSAGE_FAIL;
                 goto message_out;
@@ -1593,7 +1593,7 @@ static void arcmsr_handle_virtual_command(struct AdapterControlBlock *acb,
                 strncpy(&inqdata[32], "R001", 4); /* Product Revision */
 
                 sg = scsi_sglist(cmd);
-                buffer = kmap_atomic(sg->page, KM_IRQ0) + sg->offset;
+                buffer = kmap_atomic(sg_page(sg), KM_IRQ0) + sg->offset;
 
                 memcpy(buffer, inqdata, sizeof(inqdata));
                 sg = scsi_sglist(cmd);
diff --git a/drivers/scsi/atari_NCR5380.c b/drivers/scsi/atari_NCR5380.c
index 52d0b87e9aa4..d1780980fb20 100644
--- a/drivers/scsi/atari_NCR5380.c
+++ b/drivers/scsi/atari_NCR5380.c
@@ -515,8 +515,7 @@ static inline void initialize_SCp(Scsi_Cmnd *cmd)
         if (cmd->use_sg) {
                 cmd->SCp.buffer = (struct scatterlist *)cmd->request_buffer;
                 cmd->SCp.buffers_residual = cmd->use_sg - 1;
-                cmd->SCp.ptr = (char *)page_address(cmd->SCp.buffer->page) +
-                               cmd->SCp.buffer->offset;
+                cmd->SCp.ptr = sg_virt(cmd->SCp.buffer);
                 cmd->SCp.this_residual = cmd->SCp.buffer->length;
                 /* ++roman: Try to merge some scatter-buffers if they are at
                  * contiguous physical addresses.
@@ -2054,8 +2053,7 @@ static void NCR5380_information_transfer(struct Scsi_Host *instance)
                                         ++cmd->SCp.buffer;
                                         --cmd->SCp.buffers_residual;
                                         cmd->SCp.this_residual = cmd->SCp.buffer->length;
-                                        cmd->SCp.ptr = page_address(cmd->SCp.buffer->page) +
-                                                   cmd->SCp.buffer->offset;
+                                        cmd->SCp.ptr = sg_virt(cmd->SCp.buffer);
                                         /* ++roman: Try to merge some scatter-buffers if
                                          * they are at contiguous physical addresses.
                                          */
diff --git a/drivers/scsi/dc395x.c b/drivers/scsi/dc395x.c
index fd42d4789202..a9def6e1d30e 100644
--- a/drivers/scsi/dc395x.c
+++ b/drivers/scsi/dc395x.c
@@ -1808,12 +1808,12 @@ static irqreturn_t dc395x_interrupt(int irq, void *dev_id)
         irqreturn_t handled = IRQ_NONE;
 
         /*
-         * Check for pending interupt
+         * Check for pending interrupt
          */
         scsi_status = DC395x_read16(acb, TRM_S1040_SCSI_STATUS);
         dma_status = DC395x_read8(acb, TRM_S1040_DMA_STATUS);
         if (scsi_status & SCSIINTERRUPT) {
-                /* interupt pending - let's process it! */
+                /* interrupt pending - let's process it! */
                 dc395x_handle_interrupt(acb, scsi_status);
                 handled = IRQ_HANDLED;
         }
@@ -4579,7 +4579,7 @@ static void adapter_uninit_chip(struct AdapterCtlBlk *acb)
         if (acb->config & HCC_SCSI_RESET)
                 reset_scsi_bus(acb);
 
-        /* clear any pending interupt state */
+        /* clear any pending interrupt state */
         DC395x_read8(acb, TRM_S1040_SCSI_INTSTATUS);
 }
 
diff --git a/drivers/scsi/eata_pio.c b/drivers/scsi/eata_pio.c
index 96180bb47e41..982c5092be11 100644
--- a/drivers/scsi/eata_pio.c
+++ b/drivers/scsi/eata_pio.c
@@ -172,7 +172,7 @@ static void IncStat(struct scsi_pointer *SCp, unsigned int Increment)
                         SCp->Status = 0;
                 else {
                         SCp->buffer++;
-                        SCp->ptr = page_address(SCp->buffer->page) + SCp->buffer->offset;
+                        SCp->ptr = sg_virt(SCp->buffer);
                         SCp->this_residual = SCp->buffer->length;
                 }
         }
@@ -410,7 +410,7 @@ static int eata_pio_queue(struct scsi_cmnd *cmd,
         } else {
                 cmd->SCp.buffer = cmd->request_buffer;
                 cmd->SCp.buffers_residual = cmd->use_sg;
-                cmd->SCp.ptr = page_address(cmd->SCp.buffer->page) + cmd->SCp.buffer->offset;
+                cmd->SCp.ptr = sg_virt(cmd->SCp.buffer);
                 cmd->SCp.this_residual = cmd->SCp.buffer->length;
         }
         cmd->SCp.Status = (cmd->SCp.this_residual != 0);        /* TRUE as long as bytes 
diff --git a/drivers/scsi/fd_mcs.c b/drivers/scsi/fd_mcs.c
index 668569e8856b..8335b608e571 100644
--- a/drivers/scsi/fd_mcs.c
+++ b/drivers/scsi/fd_mcs.c
@@ -973,7 +973,7 @@ static irqreturn_t fd_mcs_intr(int irq, void *dev_id)
                                 if (current_SC->SCp.buffers_residual) {
                                         --current_SC->SCp.buffers_residual;
                                         ++current_SC->SCp.buffer;
-                                        current_SC->SCp.ptr = page_address(current_SC->SCp.buffer->page) + current_SC->SCp.buffer->offset;
+                                        current_SC->SCp.ptr = sg_virt(current_SC->SCp.buffer);
                                         current_SC->SCp.this_residual = current_SC->SCp.buffer->length;
                                 } else
                                         break;
@@ -1006,7 +1006,7 @@ static irqreturn_t fd_mcs_intr(int irq, void *dev_id)
                         if (!current_SC->SCp.this_residual && current_SC->SCp.buffers_residual) {
                                 --current_SC->SCp.buffers_residual;
                                 ++current_SC->SCp.buffer;
-                                current_SC->SCp.ptr = page_address(current_SC->SCp.buffer->page) + current_SC->SCp.buffer->offset;
+                                current_SC->SCp.ptr = sg_virt(current_SC->SCp.buffer);
                                 current_SC->SCp.this_residual = current_SC->SCp.buffer->length;
                         }
                 }
@@ -1109,7 +1109,7 @@ static int fd_mcs_queue(Scsi_Cmnd * SCpnt, void (*done) (Scsi_Cmnd *))
 
         if (current_SC->use_sg) {
                 current_SC->SCp.buffer = (struct scatterlist *) current_SC->request_buffer;
-                current_SC->SCp.ptr = page_address(current_SC->SCp.buffer->page) + current_SC->SCp.buffer->offset;
+                current_SC->SCp.ptr = sg_virt(current_SC->SCp.buffer);
                 current_SC->SCp.this_residual = current_SC->SCp.buffer->length;
                 current_SC->SCp.buffers_residual = current_SC->use_sg - 1;
         } else {
diff --git a/drivers/scsi/fdomain.c b/drivers/scsi/fdomain.c
index 5d282e6a6ae1..2cd6b4959eb2 100644
--- a/drivers/scsi/fdomain.c
+++ b/drivers/scsi/fdomain.c
@@ -1321,7 +1321,7 @@ static irqreturn_t do_fdomain_16x0_intr(int irq, void *dev_id)
             if (current_SC->SCp.buffers_residual) {
                --current_SC->SCp.buffers_residual;
                ++current_SC->SCp.buffer;
-               current_SC->SCp.ptr = page_address(current_SC->SCp.buffer->page) + current_SC->SCp.buffer->offset;
+               current_SC->SCp.ptr = sg_virt(current_SC->SCp.buffer);
                current_SC->SCp.this_residual = current_SC->SCp.buffer->length;
             } else
                   break;
@@ -1354,7 +1354,7 @@ static irqreturn_t do_fdomain_16x0_intr(int irq, void *dev_id)
              && current_SC->SCp.buffers_residual) {
             --current_SC->SCp.buffers_residual;
             ++current_SC->SCp.buffer;
-            current_SC->SCp.ptr = page_address(current_SC->SCp.buffer->page) + current_SC->SCp.buffer->offset;
+            current_SC->SCp.ptr = sg_virt(current_SC->SCp.buffer);
             current_SC->SCp.this_residual = current_SC->SCp.buffer->length;
          }
       }
@@ -1439,8 +1439,7 @@ static int fdomain_16x0_queue(struct scsi_cmnd *SCpnt,
 
    if (scsi_sg_count(current_SC)) {
            current_SC->SCp.buffer = scsi_sglist(current_SC);
-           current_SC->SCp.ptr = page_address(current_SC->SCp.buffer->page)
-                   + current_SC->SCp.buffer->offset;
+           current_SC->SCp.ptr = sg_virt(current_SC->SCp.buffer);
            current_SC->SCp.this_residual    = current_SC->SCp.buffer->length;
            current_SC->SCp.buffers_residual = scsi_sg_count(current_SC) - 1;
    } else {
diff --git a/drivers/scsi/gdth.c b/drivers/scsi/gdth.c
index 56de5a6f2817..b253b8c718d3 100644
--- a/drivers/scsi/gdth.c
+++ b/drivers/scsi/gdth.c
@@ -2374,18 +2374,18 @@ static void gdth_copy_internal_data(gdth_ha_str *ha, Scsi_Cmnd *scp,
             if (cpsum+cpnow > cpcount) 
                 cpnow = cpcount - cpsum;
             cpsum += cpnow;
-            if (!sl->page) {
+            if (!sg_page(sl)) {
                 printk("GDT-HA %d: invalid sc/gt element in gdth_copy_internal_data()\n",
                        ha->hanum);
                 return;
             }
             local_irq_save(flags);
-            address = kmap_atomic(sl->page, KM_BIO_SRC_IRQ) + sl->offset;
+            address = kmap_atomic(sg_page(sl), KM_BIO_SRC_IRQ) + sl->offset;
             if (to_buffer)
                 memcpy(buffer, address, cpnow);
             else
                 memcpy(address, buffer, cpnow);
-            flush_dcache_page(sl->page);
+            flush_dcache_page(sg_page(sl));
             kunmap_atomic(address, KM_BIO_SRC_IRQ);
             local_irq_restore(flags);
             if (cpsum == cpcount)
diff --git a/drivers/scsi/ibmmca.c b/drivers/scsi/ibmmca.c
index 714e6273a70d..db004a450732 100644
--- a/drivers/scsi/ibmmca.c
+++ b/drivers/scsi/ibmmca.c
@@ -1828,7 +1828,7 @@ static int ibmmca_queuecommand(Scsi_Cmnd * cmd, void (*done) (Scsi_Cmnd *))
                 BUG_ON(scsi_sg_count(cmd) > 16);
 
                 scsi_for_each_sg(cmd, sg, scsi_sg_count(cmd), i) {
-                        ld(shpnt)[ldn].sge[i].address = (void *) (isa_page_to_bus(sg->page) + sg->offset);
+                        ld(shpnt)[ldn].sge[i].address = (void *) (isa_page_to_bus(sg_page(sg)) + sg->offset);
                         ld(shpnt)[ldn].sge[i].byte_length = sg->length;
                 }
                 scb->enable |= IM_POINTER_TO_LIST;
diff --git a/drivers/scsi/ide-scsi.c b/drivers/scsi/ide-scsi.c
index fa7ba64483fb..8d0244c2e7d4 100644
--- a/drivers/scsi/ide-scsi.c
+++ b/drivers/scsi/ide-scsi.c
@@ -47,9 +47,9 @@
 #include <linux/scatterlist.h>
 #include <linux/delay.h>
 #include <linux/mutex.h>
+#include <linux/bitops.h>
 
 #include <asm/io.h>
-#include <asm/bitops.h>
 #include <asm/uaccess.h>
 
 #include <scsi/scsi.h>
@@ -175,18 +175,18 @@ static void idescsi_input_buffers (ide_drive_t *drive, idescsi_pc_t *pc, unsigne
 
         while (bcount) {
                 count = min(pc->sg->length - pc->b_count, bcount);
-                if (PageHighMem(pc->sg->page)) {
+                if (PageHighMem(sg_page(pc->sg))) {
                         unsigned long flags;
 
                         local_irq_save(flags);
-                        buf = kmap_atomic(pc->sg->page, KM_IRQ0) +
+                        buf = kmap_atomic(sg_page(pc->sg), KM_IRQ0) +
                                         pc->sg->offset;
                         drive->hwif->atapi_input_bytes(drive,
                                                 buf + pc->b_count, count);
                         kunmap_atomic(buf - pc->sg->offset, KM_IRQ0);
                         local_irq_restore(flags);
                 } else {
-                        buf = page_address(pc->sg->page) + pc->sg->offset;
+                        buf = sg_virt(pc->sg);
                         drive->hwif->atapi_input_bytes(drive,
                                                 buf + pc->b_count, count);
                 }
@@ -212,18 +212,18 @@ static void idescsi_output_buffers (ide_drive_t *drive, idescsi_pc_t *pc, unsign
 
         while (bcount) {
                 count = min(pc->sg->length - pc->b_count, bcount);
-                if (PageHighMem(pc->sg->page)) {
+                if (PageHighMem(sg_page(pc->sg))) {
                         unsigned long flags;
 
                         local_irq_save(flags);
-                        buf = kmap_atomic(pc->sg->page, KM_IRQ0) +
+                        buf = kmap_atomic(sg_page(pc->sg), KM_IRQ0) +
                                                 pc->sg->offset;
                         drive->hwif->atapi_output_bytes(drive,
                                                 buf + pc->b_count, count);
                         kunmap_atomic(buf - pc->sg->offset, KM_IRQ0);
                         local_irq_restore(flags);
                 } else {
-                        buf = page_address(pc->sg->page) + pc->sg->offset;
+                        buf = sg_virt(pc->sg);
                         drive->hwif->atapi_output_bytes(drive,
                                                 buf + pc->b_count, count);
                 }
diff --git a/drivers/scsi/imm.c b/drivers/scsi/imm.c
index 74cdc1f0a78f..a3d0c6b14958 100644
--- a/drivers/scsi/imm.c
+++ b/drivers/scsi/imm.c
@@ -705,9 +705,7 @@ static int imm_completion(struct scsi_cmnd *cmd)
                                 cmd->SCp.buffer++;
                                 cmd->SCp.this_residual =
                                     cmd->SCp.buffer->length;
-                                cmd->SCp.ptr =
-                                    page_address(cmd->SCp.buffer->page) +
-                                    cmd->SCp.buffer->offset;
+                                cmd->SCp.ptr = sg_virt(cmd->SCp.buffer);
 
                                 /*
                                  * Make sure that we transfer even number of bytes
@@ -844,9 +842,7 @@ static int imm_engine(imm_struct *dev, struct scsi_cmnd *cmd)
                         cmd->SCp.buffer =
                             (struct scatterlist *) cmd->request_buffer;
                         cmd->SCp.this_residual = cmd->SCp.buffer->length;
-                        cmd->SCp.ptr =
-                            page_address(cmd->SCp.buffer->page) +
-                            cmd->SCp.buffer->offset;
+                        cmd->SCp.ptr = sg_virt(cmd->SCp.buffer);
                 } else {
                         /* else fill the only available buffer */
                         cmd->SCp.buffer = NULL;
diff --git a/drivers/scsi/in2000.c b/drivers/scsi/in2000.c
index ab7cbf3449ce..c8b452f2878c 100644
--- a/drivers/scsi/in2000.c
+++ b/drivers/scsi/in2000.c
@@ -372,7 +372,7 @@ static int in2000_queuecommand(Scsi_Cmnd * cmd, void (*done) (Scsi_Cmnd *))
         if (cmd->use_sg) {
                 cmd->SCp.buffer = (struct scatterlist *) cmd->request_buffer;
                 cmd->SCp.buffers_residual = cmd->use_sg - 1;
-                cmd->SCp.ptr = (char *) page_address(cmd->SCp.buffer->page) + cmd->SCp.buffer->offset;
+                cmd->SCp.ptr = sg_virt(cmd->SCp.buffer);
                 cmd->SCp.this_residual = cmd->SCp.buffer->length;
         } else {
                 cmd->SCp.buffer = NULL;
@@ -764,7 +764,7 @@ static void transfer_bytes(Scsi_Cmnd * cmd, int data_in_dir)
                 ++cmd->SCp.buffer;
                 --cmd->SCp.buffers_residual;
                 cmd->SCp.this_residual = cmd->SCp.buffer->length;
-                cmd->SCp.ptr = page_address(cmd->SCp.buffer->page) + cmd->SCp.buffer->offset;
+                cmd->SCp.ptr = sg_virt(cmd->SCp.buffer);
         }
 
 /* Set up hardware registers */
diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c
index b41dfb539021..439b97a6a269 100644
--- a/drivers/scsi/ipr.c
+++ b/drivers/scsi/ipr.c
@@ -2872,6 +2872,7 @@ static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len)
         }
 
         scatterlist = sglist->scatterlist;
+        sg_init_table(scatterlist, num_elem);
 
         sglist->order = order;
         sglist->num_sg = num_elem;
@@ -2884,12 +2885,12 @@ static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len)
 
                         /* Free up what we already allocated */
                         for (j = i - 1; j >= 0; j--)
-                                __free_pages(scatterlist[j].page, order);
+                                __free_pages(sg_page(&scatterlist[j]), order);
                         kfree(sglist);
                         return NULL;
                 }
 
-                scatterlist[i].page = page;
+                sg_set_page(&scatterlist[i], page);
         }
 
         return sglist;
@@ -2910,7 +2911,7 @@ static void ipr_free_ucode_buffer(struct ipr_sglist *sglist)
         int i;
 
         for (i = 0; i < sglist->num_sg; i++)
-                __free_pages(sglist->scatterlist[i].page, sglist->order);
+                __free_pages(sg_page(&sglist->scatterlist[i]), sglist->order);
 
         kfree(sglist);
 }
@@ -2940,9 +2941,11 @@ static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist,
         scatterlist = sglist->scatterlist;
 
         for (i = 0; i < (len / bsize_elem); i++, buffer += bsize_elem) {
-                kaddr = kmap(scatterlist[i].page);
+                struct page *page = sg_page(&scatterlist[i]);
+
+                kaddr = kmap(page);
                 memcpy(kaddr, buffer, bsize_elem);
-                kunmap(scatterlist[i].page);
+                kunmap(page);
 
                 scatterlist[i].length = bsize_elem;
 
@@ -2953,9 +2956,11 @@ static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist,
         }
 
         if (len % bsize_elem) {
-                kaddr = kmap(scatterlist[i].page);
+                struct page *page = sg_page(&scatterlist[i]);
+
+                kaddr = kmap(page);
                 memcpy(kaddr, buffer, len % bsize_elem);
-                kunmap(scatterlist[i].page);
+                kunmap(page);
 
                 scatterlist[i].length = len % bsize_elem;
         }
@@ -5134,6 +5139,7 @@ static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd,
         u32 ioadl_flags = 0;
         struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
         struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
+        struct ipr_ioadl_desc *last_ioadl = NULL;
         int len = qc->nbytes + qc->pad_len;
         struct scatterlist *sg;
 
@@ -5156,11 +5162,13 @@ static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd,
         ata_for_each_sg(sg, qc) {
                 ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg));
                 ioadl->address = cpu_to_be32(sg_dma_address(sg));
-                if (ata_sg_is_last(sg, qc))
-                        ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
-                else
-                        ioadl++;
+
+                last_ioadl = ioadl;
+                ioadl++;
         }
+
+        if (likely(last_ioadl))
+                last_ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
 }
 
 /**
diff --git a/drivers/scsi/ips.c b/drivers/scsi/ips.c
index edaac2714c5a..5c5a9b2628fc 100644
--- a/drivers/scsi/ips.c
+++ b/drivers/scsi/ips.c
@@ -1515,7 +1515,7 @@ static int ips_is_passthru(struct scsi_cmnd *SC)
                 /* kmap_atomic() ensures addressability of the user buffer.*/
                 /* local_irq_save() protects the KM_IRQ0 address slot.     */
                 local_irq_save(flags);
-                buffer = kmap_atomic(sg->page, KM_IRQ0) + sg->offset;
+                buffer = kmap_atomic(sg_page(sg), KM_IRQ0) + sg->offset;
                 if (buffer && buffer[0] == 'C' && buffer[1] == 'O' &&
                     buffer[2] == 'P' && buffer[3] == 'P') {
                         kunmap_atomic(buffer - sg->offset, KM_IRQ0);
@@ -3523,7 +3523,7 @@ ips_scmd_buf_write(struct scsi_cmnd *scmd, void *data, unsigned int count)
                 /* kmap_atomic() ensures addressability of the data buffer.*/
                 /* local_irq_save() protects the KM_IRQ0 address slot.     */
                 local_irq_save(flags);
-                buffer = kmap_atomic(sg[i].page, KM_IRQ0) + sg[i].offset;
+                buffer = kmap_atomic(sg_page(&sg[i]), KM_IRQ0) + sg[i].offset;
                 memcpy(buffer, &cdata[xfer_cnt], min_cnt);
                 kunmap_atomic(buffer - sg[i].offset, KM_IRQ0);
                 local_irq_restore(flags);
@@ -3556,7 +3556,7 @@ ips_scmd_buf_read(struct scsi_cmnd *scmd, void *data, unsigned int count)
                 /* kmap_atomic() ensures addressability of the data buffer.*/
                 /* local_irq_save() protects the KM_IRQ0 address slot.     */
                 local_irq_save(flags);
-                buffer = kmap_atomic(sg[i].page, KM_IRQ0) + sg[i].offset;
+                buffer = kmap_atomic(sg_page(&sg[i]), KM_IRQ0) + sg[i].offset;
                 memcpy(&cdata[xfer_cnt], buffer, min_cnt);
                 kunmap_atomic(buffer - sg[i].offset, KM_IRQ0);
                 local_irq_restore(flags);
diff --git a/drivers/scsi/iscsi_tcp.c b/drivers/scsi/iscsi_tcp.c
index a21455d0274c..6ce4109efdf3 100644
--- a/drivers/scsi/iscsi_tcp.c
+++ b/drivers/scsi/iscsi_tcp.c
@@ -70,9 +70,7 @@ module_param_named(max_lun, iscsi_max_lun, uint, S_IRUGO);
 static inline void
 iscsi_buf_init_iov(struct iscsi_buf *ibuf, char *vbuf, int size)
 {
-        ibuf->sg.page = virt_to_page(vbuf);
-        ibuf->sg.offset = offset_in_page(vbuf);
-        ibuf->sg.length = size;
+        sg_init_one(&ibuf->sg, vbuf, size);
         ibuf->sent = 0;
         ibuf->use_sendmsg = 1;
 }
@@ -80,13 +78,14 @@ iscsi_buf_init_iov(struct iscsi_buf *ibuf, char *vbuf, int size)
 static inline void
 iscsi_buf_init_sg(struct iscsi_buf *ibuf, struct scatterlist *sg)
 {
-        ibuf->sg.page = sg->page;
+        sg_init_table(&ibuf->sg, 1);
+        sg_set_page(&ibuf->sg, sg_page(sg));
         ibuf->sg.offset = sg->offset;
         ibuf->sg.length = sg->length;
         /*
          * Fastpath: sg element fits into single page
          */
-        if (sg->length + sg->offset <= PAGE_SIZE && !PageSlab(sg->page))
+        if (sg->length + sg->offset <= PAGE_SIZE && !PageSlab(sg_page(sg)))
                 ibuf->use_sendmsg = 0;
         else
                 ibuf->use_sendmsg = 1;
@@ -716,7 +715,7 @@ static int iscsi_scsi_data_in(struct iscsi_conn *conn)
         for (i = tcp_ctask->sg_count; i < scsi_sg_count(sc); i++) {
                 char *dest;
 
-                dest = kmap_atomic(sg[i].page, KM_SOFTIRQ0);
+                dest = kmap_atomic(sg_page(&sg[i]), KM_SOFTIRQ0);
                 rc = iscsi_ctask_copy(tcp_conn, ctask, dest + sg[i].offset,
                                       sg[i].length, offset);
                 kunmap_atomic(dest, KM_SOFTIRQ0);
@@ -1103,9 +1102,9 @@ iscsi_send(struct iscsi_conn *conn, struct iscsi_buf *buf, int size, int flags)
          * slab case.
          */
         if (buf->use_sendmsg)
-                res = sock_no_sendpage(sk, buf->sg.page, offset, size, flags);
+                res = sock_no_sendpage(sk, sg_page(&buf->sg), offset, size, flags);
         else
-                res = tcp_conn->sendpage(sk, buf->sg.page, offset, size, flags);
+                res = tcp_conn->sendpage(sk, sg_page(&buf->sg), offset, size, flags);
 
         if (res >= 0) {
                 conn->txdata_octets += res;
diff --git a/drivers/scsi/libsas/sas_discover.c b/drivers/scsi/libsas/sas_discover.c
index 7ef0afc3cd68..5f3a0d7b18de 100644
--- a/drivers/scsi/libsas/sas_discover.c
+++ b/drivers/scsi/libsas/sas_discover.c
@@ -285,7 +285,7 @@ static void sas_discover_domain(struct work_struct *work)
         dev = port->port_dev;
 
         SAS_DPRINTK("DOING DISCOVERY on port %d, pid:%d\n", port->id,
-                    current->pid);
+                    task_pid_nr(current));
 
         switch (dev->dev_type) {
         case SAS_END_DEV:
@@ -320,7 +320,7 @@ static void sas_discover_domain(struct work_struct *work)
         }
 
         SAS_DPRINTK("DONE DISCOVERY on port %d, pid:%d, result:%d\n", port->id,
-                    current->pid, error);
+                    task_pid_nr(current), error);
 }
 
 static void sas_revalidate_domain(struct work_struct *work)
@@ -334,12 +334,12 @@ static void sas_revalidate_domain(struct work_struct *work)
                         &port->disc.pending);
 
         SAS_DPRINTK("REVALIDATING DOMAIN on port %d, pid:%d\n", port->id,
-                    current->pid);
+                    task_pid_nr(current));
         if (port->port_dev)
                 res = sas_ex_revalidate_domain(port->port_dev);
 
         SAS_DPRINTK("done REVALIDATING DOMAIN on port %d, pid:%d, res 0x%x\n",
-                    port->id, current->pid, res);
+                    port->id, task_pid_nr(current), res);
 }
 
 /* ---------- Events ---------- */
diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
index e5337ad4121e..ce348c5c706c 100644
--- a/drivers/scsi/lpfc/lpfc_sli.c
+++ b/drivers/scsi/lpfc/lpfc_sli.c
@@ -1243,7 +1243,8 @@ void lpfc_sli_poll_fcp_ring(struct lpfc_hba *phba)
                                 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
                                 memcpy(&adaptermsg[0], (uint8_t *) irsp,
                                        MAX_MSG_DATA);
-                                dev_warn(&((phba->pcidev)->dev), "lpfc%d: %s",
+                                dev_warn(&((phba->pcidev)->dev),
+                                         "lpfc%d: %s\n",
                                          phba->brd_no, adaptermsg);
                         } else {
                                 /* Unknown IOCB command */
@@ -1430,7 +1431,8 @@ lpfc_sli_handle_fast_ring_event(struct lpfc_hba *phba,
                                 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
                                 memcpy(&adaptermsg[0], (uint8_t *) irsp,
                                        MAX_MSG_DATA);
-                                dev_warn(&((phba->pcidev)->dev), "lpfc%d: %s",
+                                dev_warn(&((phba->pcidev)->dev),
+                                         "lpfc%d: %s\n",
                                          phba->brd_no, adaptermsg);
                         } else {
                                 /* Unknown IOCB command */
@@ -1681,7 +1683,7 @@ lpfc_sli_handle_slow_ring_event(struct lpfc_hba *phba,
                                         memcpy(&adaptermsg[0], (uint8_t *) irsp,
                                                MAX_MSG_DATA);
                                         dev_warn(&((phba->pcidev)->dev),
-                                                 "lpfc%d: %s",
+                                                 "lpfc%d: %s\n",
                                                  phba->brd_no, adaptermsg);
                                 } else {
                                         /* Unknown IOCB command */
diff --git a/drivers/scsi/megaraid.c b/drivers/scsi/megaraid.c
index 10d1aff9938a..66c652035730 100644
--- a/drivers/scsi/megaraid.c
+++ b/drivers/scsi/megaraid.c
@@ -658,7 +658,7 @@ mega_build_cmd(adapter_t *adapter, Scsi_Cmnd *cmd, int *busy)
                         struct scatterlist *sg;
 
                         sg = scsi_sglist(cmd);
-                        buf = kmap_atomic(sg->page, KM_IRQ0) + sg->offset;
+                        buf = kmap_atomic(sg_page(sg), KM_IRQ0) + sg->offset;
 
                         memset(buf, 0, cmd->cmnd[4]);
                         kunmap_atomic(buf - sg->offset, KM_IRQ0);
@@ -1542,10 +1542,8 @@ mega_cmd_done(adapter_t *adapter, u8 completed[], int nstatus, int status)
                 if( cmd->cmnd[0] == INQUIRY && !islogical ) {
 
                         sgl = scsi_sglist(cmd);
-                        if( sgl->page ) {
-                                c = *(unsigned char *)
-                                        page_address((&sgl[0])->page) +
-                                        (&sgl[0])->offset; 
+                        if( sg_page(sgl) ) {
+                                c = *(unsigned char *) sg_virt(&sgl[0]);
                         } else {
                                 printk(KERN_WARNING
                                        "megaraid: invalid sg.\n");
diff --git a/drivers/scsi/megaraid/megaraid_mbox.c b/drivers/scsi/megaraid/megaraid_mbox.c
index e4e4c6a39ed6..c8923108183a 100644
--- a/drivers/scsi/megaraid/megaraid_mbox.c
+++ b/drivers/scsi/megaraid/megaraid_mbox.c
@@ -427,7 +427,7 @@ megaraid_exit(void)
  * @id          : pci device id of the class of controllers
  *
  * This routine should be called whenever a new adapter is detected by the
- * PCI hotplug susbsytem.
+ * PCI hotplug susbsystem.
  */
 static int __devinit
 megaraid_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
@@ -1584,10 +1584,8 @@ megaraid_mbox_build_cmd(adapter_t *adapter, struct scsi_cmnd *scp, int *busy)
                         caddr_t                 vaddr;
 
                         sgl = scsi_sglist(scp);
-                        if (sgl->page) {
-                                vaddr = (caddr_t)
-                                        (page_address((&sgl[0])->page)
-                                         + (&sgl[0])->offset);
+                        if (sg_page(sgl)) {
+                                vaddr = (caddr_t) sg_virt(&sgl[0]);
 
                                 memset(vaddr, 0, scp->cmnd[4]);
                         }
@@ -2328,10 +2326,8 @@ megaraid_mbox_dpc(unsigned long devp)
                                 && IS_RAID_CH(raid_dev, scb->dev_channel)) {
 
                         sgl = scsi_sglist(scp);
-                        if (sgl->page) {
-                                c = *(unsigned char *)
-                                        (page_address((&sgl[0])->page) +
-                                         (&sgl[0])->offset);
+                        if (sg_page(sgl)) {
+                                c = *(unsigned char *) sg_virt(&sgl[0]);
                         } else {
                                 con_log(CL_ANN, (KERN_WARNING
                                                  "megaraid mailbox: invalid sg:%d\n",
diff --git a/drivers/scsi/nsp32.h b/drivers/scsi/nsp32.h
index a976e8193d16..6715ecb3bfca 100644
--- a/drivers/scsi/nsp32.h
+++ b/drivers/scsi/nsp32.h
@@ -69,11 +69,6 @@ typedef u32 u32_le;
 typedef u16 u16_le;
 
 /*
- * MACRO
- */
-#define BIT(x)      (1UL << (x))
-
-/*
  * BASIC Definitions
  */
 #ifndef TRUE
diff --git a/drivers/scsi/oktagon_esp.c b/drivers/scsi/oktagon_esp.c
index 26a6d55faf3e..8e5eadbd5c51 100644
--- a/drivers/scsi/oktagon_esp.c
+++ b/drivers/scsi/oktagon_esp.c
@@ -550,8 +550,7 @@ void dma_mmu_get_scsi_one(struct NCR_ESP *esp, Scsi_Cmnd *sp)
 
 void dma_mmu_get_scsi_sgl(struct NCR_ESP *esp, Scsi_Cmnd *sp)
 {
-        sp->SCp.ptr = page_address(sp->SCp.buffer->page)+
-                      sp->SCp.buffer->offset;
+        sp->SCp.ptr = sg_virt(sp->SCp.buffer);
 }
 
 void dma_mmu_release_scsi_one(struct NCR_ESP *esp, Scsi_Cmnd *sp)
@@ -564,8 +563,7 @@ void dma_mmu_release_scsi_sgl(struct NCR_ESP *esp, Scsi_Cmnd *sp)
 
 void dma_advance_sg(Scsi_Cmnd *sp)
 {
-        sp->SCp.ptr = page_address(sp->SCp.buffer->page)+
-                      sp->SCp.buffer->offset;
+        sp->SCp.ptr = sg_virt(sp->SCp.buffer);
 }
 
 
diff --git a/drivers/scsi/osst.c b/drivers/scsi/osst.c
index 331b789937c4..1c5c4b68f20f 100644
--- a/drivers/scsi/osst.c
+++ b/drivers/scsi/osst.c
@@ -542,7 +542,7 @@ static int osst_verify_frame(struct osst_tape * STp, int frame_seq_number, int q
         if (STp->raw) {
                 if (STp->buffer->syscall_result) {
                         for (i=0; i < STp->buffer->sg_segs; i++)
-                                memset(page_address(STp->buffer->sg[i].page),
+                                memset(page_address(sg_page(&STp->buffer->sg[i])),
                                        0, STp->buffer->sg[i].length);
                         strcpy(STp->buffer->b_data, "READ ERROR ON FRAME");
                 } else
@@ -4437,7 +4437,7 @@ static int os_scsi_tape_open(struct inode * inode, struct file * filp)
                 for (i = 0, b_size = 0; 
                      (i < STp->buffer->sg_segs) && ((b_size + STp->buffer->sg[i].length) <= OS_DATA_SIZE); 
                      b_size += STp->buffer->sg[i++].length);
-                STp->buffer->aux = (os_aux_t *) (page_address(STp->buffer->sg[i].page) + OS_DATA_SIZE - b_size);
+                STp->buffer->aux = (os_aux_t *) (page_address(sg_page(&STp->buffer->sg[i])) + OS_DATA_SIZE - b_size);
 #if DEBUG
                 printk(OSST_DEB_MSG "%s:D: b_data points to %p in segment 0 at %p\n", name,
                         STp->buffer->b_data, page_address(STp->buffer->sg[0].page));
@@ -5252,25 +5252,26 @@ static int enlarge_buffer(struct osst_buffer *STbuffer, int need_dma)
         /* Try to allocate the first segment up to OS_DATA_SIZE and the others
            big enough to reach the goal (code assumes no segments in place) */
         for (b_size = OS_DATA_SIZE, order = OSST_FIRST_ORDER; b_size >= PAGE_SIZE; order--, b_size /= 2) {
-                STbuffer->sg[0].page = alloc_pages(priority, order);
+                struct page *page = alloc_pages(priority, order);
+
                 STbuffer->sg[0].offset = 0;
-                if (STbuffer->sg[0].page != NULL) {
+                if (page != NULL) {
+                    sg_set_page(&STbuffer->sg[0], page);
                     STbuffer->sg[0].length = b_size;
-                    STbuffer->b_data = page_address(STbuffer->sg[0].page);
+                    STbuffer->b_data = page_address(page);
                     break;
                 }
         }
-        if (STbuffer->sg[0].page == NULL) {
+        if (sg_page(&STbuffer->sg[0]) == NULL) {
                 printk(KERN_NOTICE "osst :I: Can't allocate tape buffer main segment.\n");
                 return 0;
         }
         /* Got initial segment of 'bsize,order', continue with same size if possible, except for AUX */
         for (segs=STbuffer->sg_segs=1, got=b_size;
              segs < max_segs && got < OS_FRAME_SIZE; ) {
-                STbuffer->sg[segs].page =
-                                alloc_pages(priority, (OS_FRAME_SIZE - got <= PAGE_SIZE) ? 0 : order);
+                struct page *page = alloc_pages(priority, (OS_FRAME_SIZE - got <= PAGE_SIZE) ? 0 : order);
                 STbuffer->sg[segs].offset = 0;
-                if (STbuffer->sg[segs].page == NULL) {
+                if (page == NULL) {
                         if (OS_FRAME_SIZE - got <= (max_segs - segs) * b_size / 2 && order) {
                                 b_size /= 2;  /* Large enough for the rest of the buffers */
                                 order--;
@@ -5284,6 +5285,7 @@ static int enlarge_buffer(struct osst_buffer *STbuffer, int need_dma)
                         normalize_buffer(STbuffer);
                         return 0;
                 }
+                sg_set_page(&STbuffer->sg[segs], page);
                 STbuffer->sg[segs].length = (OS_FRAME_SIZE - got <= PAGE_SIZE / 2) ? (OS_FRAME_SIZE - got) : b_size;
                 got += STbuffer->sg[segs].length;
                 STbuffer->buffer_size = got;
@@ -5316,7 +5318,7 @@ static void normalize_buffer(struct osst_buffer *STbuffer)
                      b_size < STbuffer->sg[i].length;
                      b_size *= 2, order++);
 
-                __free_pages(STbuffer->sg[i].page, order);
+                __free_pages(sg_page(&STbuffer->sg[i]), order);
                 STbuffer->buffer_size -= STbuffer->sg[i].length;
         }
 #if DEBUG
@@ -5344,7 +5346,7 @@ static int append_to_buffer(const char __user *ubp, struct osst_buffer *st_bp, i
         for ( ; i < st_bp->sg_segs && do_count > 0; i++) {
                 cnt = st_bp->sg[i].length - offset < do_count ?
                       st_bp->sg[i].length - offset : do_count;
-                res = copy_from_user(page_address(st_bp->sg[i].page) + offset, ubp, cnt);
+                res = copy_from_user(page_address(sg_page(&st_bp->sg[i])) + offset, ubp, cnt);
                 if (res)
                         return (-EFAULT);
                 do_count -= cnt;
@@ -5377,7 +5379,7 @@ static int from_buffer(struct osst_buffer *st_bp, char __user *ubp, int do_count
         for ( ; i < st_bp->sg_segs && do_count > 0; i++) {
                 cnt = st_bp->sg[i].length - offset < do_count ?
                       st_bp->sg[i].length - offset : do_count;
-                res = copy_to_user(ubp, page_address(st_bp->sg[i].page) + offset, cnt);
+                res = copy_to_user(ubp, page_address(sg_page(&st_bp->sg[i])) + offset, cnt);
                 if (res)
                         return (-EFAULT);
                 do_count -= cnt;
@@ -5410,7 +5412,7 @@ static int osst_zero_buffer_tail(struct osst_buffer *st_bp)
              i < st_bp->sg_segs && do_count > 0; i++) {
                 cnt = st_bp->sg[i].length - offset < do_count ?
                       st_bp->sg[i].length - offset : do_count ;
-                memset(page_address(st_bp->sg[i].page) + offset, 0, cnt);
+                memset(page_address(sg_page(&st_bp->sg[i])) + offset, 0, cnt);
                 do_count -= cnt;
                 offset = 0;
         }
@@ -5430,7 +5432,7 @@ static int osst_copy_to_buffer(struct osst_buffer *st_bp, unsigned char *ptr)
         for (i = 0; i < st_bp->sg_segs && do_count > 0; i++) {
                 cnt = st_bp->sg[i].length < do_count ?
                       st_bp->sg[i].length : do_count ;
-                memcpy(page_address(st_bp->sg[i].page), ptr, cnt);
+                memcpy(page_address(sg_page(&st_bp->sg[i])), ptr, cnt);
                 do_count -= cnt;
                 ptr      += cnt;
         }
@@ -5451,7 +5453,7 @@ static int osst_copy_from_buffer(struct osst_buffer *st_bp, unsigned char *ptr)
         for (i = 0; i < st_bp->sg_segs && do_count > 0; i++) {
                 cnt = st_bp->sg[i].length < do_count ?
                       st_bp->sg[i].length : do_count ;
-                memcpy(ptr, page_address(st_bp->sg[i].page), cnt);
+                memcpy(ptr, page_address(sg_page(&st_bp->sg[i])), cnt);
                 do_count -= cnt;
                 ptr      += cnt;
         }
diff --git a/drivers/scsi/pcmcia/nsp_cs.h b/drivers/scsi/pcmcia/nsp_cs.h
index b7f0fa246413..7db28cd49446 100644
--- a/drivers/scsi/pcmcia/nsp_cs.h
+++ b/drivers/scsi/pcmcia/nsp_cs.h
@@ -24,7 +24,6 @@
 /************************************
  * Some useful macros...
  */
-#define BIT(x)      (1L << (x))
 
 /* SCSI initiator must be ID 7 */
 #define NSP_INITIATOR_ID  7
@@ -394,7 +393,7 @@ enum _burst_mode {
 #define MSG_EXT_SDTR         0x01
 
 /* scatter-gather table */
-#  define BUFFER_ADDR ((char *)((unsigned int)(SCpnt->SCp.buffer->page) + SCpnt->SCp.buffer->offset))
+#  define BUFFER_ADDR ((char *)((sg_virt(SCpnt->SCp.buffer))))
 
 #endif  /*__nsp_cs__*/
 /* end */
diff --git a/drivers/scsi/pcmcia/sym53c500_cs.c b/drivers/scsi/pcmcia/sym53c500_cs.c
index 190e2a7d7067..969b9387a0c3 100644
--- a/drivers/scsi/pcmcia/sym53c500_cs.c
+++ b/drivers/scsi/pcmcia/sym53c500_cs.c
@@ -443,8 +443,7 @@ SYM53C500_intr(int irq, void *dev_id)
 
                         scsi_for_each_sg(curSC, sg, scsi_sg_count(curSC), i) {
                                 SYM53C500_pio_write(fast_pio, port_base,
-                                                    page_address(sg->page) + sg->offset,
-                                                    sg->length);
+                                    sg_virt(sg), sg->length);
                         }
                         REG0(port_base);
                 }
@@ -463,8 +462,7 @@ SYM53C500_intr(int irq, void *dev_id)
 
                         scsi_for_each_sg(curSC, sg, scsi_sg_count(curSC), i) {
                                 SYM53C500_pio_read(fast_pio, port_base,
-                                                   page_address(sg->page) + sg->offset,
-                                                   sg->length);
+                                        sg_virt(sg), sg->length);
                         }
                         REG0(port_base);
                 }
diff --git a/drivers/scsi/ppa.c b/drivers/scsi/ppa.c
index 67b6d76a6c8d..67ee51a3d7e1 100644
--- a/drivers/scsi/ppa.c
+++ b/drivers/scsi/ppa.c
@@ -608,9 +608,7 @@ static int ppa_completion(struct scsi_cmnd *cmd)
                                 cmd->SCp.buffer++;
                                 cmd->SCp.this_residual =
                                     cmd->SCp.buffer->length;
-                                cmd->SCp.ptr =
-                                    page_address(cmd->SCp.buffer->page) +
-                                    cmd->SCp.buffer->offset;
+                                cmd->SCp.ptr = sg_virt(cmd->SCp.buffer);
                         }
                 }
                 /* Now check to see if the drive is ready to comunicate */
@@ -756,8 +754,7 @@ static int ppa_engine(ppa_struct *dev, struct scsi_cmnd *cmd)
                         /* if many buffers are available, start filling the first */
                         cmd->SCp.buffer = (struct scatterlist *) cmd->request_buffer;
                         cmd->SCp.this_residual = cmd->SCp.buffer->length;
-                        cmd->SCp.ptr = page_address(cmd->SCp.buffer->page) +
-                            cmd->SCp.buffer->offset;
+                        cmd->SCp.ptr = sg_virt(cmd->SCp.buffer);
                 } else {
                         /* else fill the only available buffer */
                         cmd->SCp.buffer = NULL;
diff --git a/drivers/scsi/ps3rom.c b/drivers/scsi/ps3rom.c
index 0f43d1d046d9..17b4a7c4618c 100644
--- a/drivers/scsi/ps3rom.c
+++ b/drivers/scsi/ps3rom.c
@@ -111,14 +111,14 @@ static int fill_from_dev_buffer(struct scsi_cmnd *cmd, const void *buf)
         req_len = act_len = 0;
         scsi_for_each_sg(cmd, sgpnt, scsi_sg_count(cmd), k) {
                 if (active) {
-                        kaddr = kmap_atomic(sgpnt->page, KM_IRQ0);
+                        kaddr = kmap_atomic(sg_page(sgpnt), KM_IRQ0);
                         len = sgpnt->length;
                         if ((req_len + len) > buflen) {
                                 active = 0;
                                 len = buflen - req_len;
                         }
                         memcpy(kaddr + sgpnt->offset, buf + req_len, len);
-                        flush_kernel_dcache_page(sgpnt->page);
+                        flush_kernel_dcache_page(sg_page(sgpnt));
                         kunmap_atomic(kaddr, KM_IRQ0);
                         act_len += len;
                 }
@@ -147,7 +147,7 @@ static int fetch_to_dev_buffer(struct scsi_cmnd *cmd, void *buf)
 
         req_len = fin = 0;
         scsi_for_each_sg(cmd, sgpnt, scsi_sg_count(cmd), k) {
-                kaddr = kmap_atomic(sgpnt->page, KM_IRQ0);
+                kaddr = kmap_atomic(sg_page(sgpnt), KM_IRQ0);
                 len = sgpnt->length;
                 if ((req_len + len) > buflen) {
                         len = buflen - req_len;
diff --git a/drivers/scsi/qla4xxx/ql4_fw.h b/drivers/scsi/qla4xxx/ql4_fw.h
index 9bb3d1d2a925..fe415ec85655 100644
--- a/drivers/scsi/qla4xxx/ql4_fw.h
+++ b/drivers/scsi/qla4xxx/ql4_fw.h
@@ -671,7 +671,7 @@ struct continuation_t1_entry {
 #define ET_CONTINUE     ET_CONT_T1
 
 /* Marker entry structure*/
-struct marker_entry {
+struct qla4_marker_entry {
         struct qla4_header hdr; /* 00-03 */
 
         uint32_t system_defined; /* 04-07 */
diff --git a/drivers/scsi/qla4xxx/ql4_init.c b/drivers/scsi/qla4xxx/ql4_init.c
index 1e29f51d596b..d692c713416a 100644
--- a/drivers/scsi/qla4xxx/ql4_init.c
+++ b/drivers/scsi/qla4xxx/ql4_init.c
@@ -1006,7 +1006,7 @@ int ql4xxx_lock_drvr_wait(struct scsi_qla_host *a)
  * qla4xxx_start_firmware - starts qla4xxx firmware
  * @ha: Pointer to host adapter structure.
  *
- * This routine performs the neccessary steps to start the firmware for
+ * This routine performs the necessary steps to start the firmware for
  * the QLA4010 adapter.
  **/
 static int qla4xxx_start_firmware(struct scsi_qla_host *ha)
diff --git a/drivers/scsi/qla4xxx/ql4_iocb.c b/drivers/scsi/qla4xxx/ql4_iocb.c
index 5006ecb3ef5e..e4461b5d767a 100644
--- a/drivers/scsi/qla4xxx/ql4_iocb.c
+++ b/drivers/scsi/qla4xxx/ql4_iocb.c
@@ -69,7 +69,7 @@ static int qla4xxx_get_req_pkt(struct scsi_qla_host *ha,
 static int qla4xxx_send_marker_iocb(struct scsi_qla_host *ha,
                                     struct ddb_entry *ddb_entry, int lun)
 {
-        struct marker_entry *marker_entry;
+        struct qla4_marker_entry *marker_entry;
         unsigned long flags = 0;
         uint8_t status = QLA_SUCCESS;
 
diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c
index 03b68d4f3bd0..89460d27c689 100644
--- a/drivers/scsi/qla4xxx/ql4_os.c
+++ b/drivers/scsi/qla4xxx/ql4_os.c
@@ -1286,7 +1286,7 @@ static int __devinit qla4xxx_probe_adapter(struct pci_dev *pdev,
 
         ret = scsi_init_shared_tag_map(host, MAX_SRBS);
         if (ret) {
-                dev_warn(&ha->pdev->dev, "scsi_init_shared_tag_map failed");
+                dev_warn(&ha->pdev->dev, "scsi_init_shared_tag_map failed\n");
                 goto probe_failed;
         }
 
diff --git a/drivers/scsi/qlogicfas408.c b/drivers/scsi/qlogicfas408.c
index 2bfbf26c00ed..de7b3bc2cbc9 100644
--- a/drivers/scsi/qlogicfas408.c
+++ b/drivers/scsi/qlogicfas408.c
@@ -317,7 +317,7 @@ static unsigned int ql_pcmd(struct scsi_cmnd *cmd)
                                 return ((priv->qabort == 1 ?
                                          DID_ABORT : DID_RESET) << 16);
                         }
-                        buf = page_address(sg->page) + sg->offset;
+                        buf = sg_virt(sg);
                         if (ql_pdma(priv, phase, buf, sg->length))
                                 break;
                 }
diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c
index 72ee4c9cfb1a..46cae5a212de 100644
--- a/drivers/scsi/scsi_debug.c
+++ b/drivers/scsi/scsi_debug.c
@@ -625,7 +625,7 @@ static int fill_from_dev_buffer(struct scsi_cmnd * scp, unsigned char * arr,
         scsi_for_each_sg(scp, sg, scp->use_sg, k) {
                 if (active) {
                         kaddr = (unsigned char *)
-                                kmap_atomic(sg->page, KM_USER0);
+                                kmap_atomic(sg_page(sg), KM_USER0);
                         if (NULL == kaddr)
                                 return (DID_ERROR << 16);
                         kaddr_off = (unsigned char *)kaddr + sg->offset;
@@ -672,7 +672,7 @@ static int fetch_to_dev_buffer(struct scsi_cmnd * scp, unsigned char * arr,
         sg = scsi_sglist(scp);
         req_len = fin = 0;
         for (k = 0; k < scp->use_sg; ++k, sg = sg_next(sg)) {
-                kaddr = (unsigned char *)kmap_atomic(sg->page, KM_USER0);
+                kaddr = (unsigned char *)kmap_atomic(sg_page(sg), KM_USER0);
                 if (NULL == kaddr)
                         return -1;
                 kaddr_off = (unsigned char *)kaddr + sg->offset;
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index aac8a02cbe80..61fdaf02f251 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -295,7 +295,7 @@ static int scsi_req_map_sg(struct request *rq, struct scatterlist *sgl,
         int i, err, nr_vecs = 0;
 
         for_each_sg(sgl, sg, nsegs, i) {
-                page = sg->page;
+                page = sg_page(sg);
                 off = sg->offset;
                 len = sg->length;
                 data_len += len;
@@ -764,7 +764,7 @@ struct scatterlist *scsi_alloc_sgtable(struct scsi_cmnd *cmd, gfp_t gfp_mask)
                 if (unlikely(!sgl))
                         goto enomem;
 
-                memset(sgl, 0, sizeof(*sgl) * sgp->size);
+                sg_init_table(sgl, sgp->size);
 
                 /*
                  * first loop through, set initial index and return value
@@ -781,6 +781,13 @@ struct scatterlist *scsi_alloc_sgtable(struct scsi_cmnd *cmd, gfp_t gfp_mask)
                         sg_chain(prev, SCSI_MAX_SG_SEGMENTS, sgl);
 
                 /*
+                 * if we have nothing left, mark the last segment as
+                 * end-of-list
+                 */
+                if (!left)
+                        sg_mark_end(sgl, this);
+
+                /*
                  * don't allow subsequent mempool allocs to sleep, it would
                  * violate the mempool principle.
                  */
@@ -2353,7 +2360,7 @@ void *scsi_kmap_atomic_sg(struct scatterlist *sgl, int sg_count,
         *offset = *offset - len_complete + sg->offset;
 
         /* Assumption: contiguous pages can be accessed as "page + i" */
-        page = nth_page(sg->page, (*offset >> PAGE_SHIFT));
+        page = nth_page(sg_page(sg), (*offset >> PAGE_SHIFT));
         *offset &= ~PAGE_MASK;
 
         /* Bytes in this sg-entry from *offset to the end of the page */
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index 69f542c4923c..a69b155f39a2 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -676,7 +676,7 @@ static int sd_getgeo(struct block_device *bdev, struct hd_geometry *geo)
  *      success as well). Returns a negated errno value in case of error.
  *
  *      Note: most ioctls are forward onto the block subsystem or further
- *      down in the scsi subsytem.
+ *      down in the scsi subsystem.
  **/
 static int sd_ioctl(struct inode * inode, struct file * filp, 
                     unsigned int cmd, unsigned long arg)
diff --git a/drivers/scsi/seagate.c b/drivers/scsi/seagate.c
index ce80fa9ad815..b11324479b5b 100644
--- a/drivers/scsi/seagate.c
+++ b/drivers/scsi/seagate.c
@@ -999,14 +999,14 @@ connect_loop:
                                 for (i = 0; i < nobuffs; ++i)
                                         printk("scsi%d : buffer %d address = %p length = %d\n",
                                              hostno, i,
-                                             page_address(buffer[i].page) + buffer[i].offset,
+                                             sg_virt(&buffer[i]),
                                              buffer[i].length);
                         }
 #endif
 
                         buffer = (struct scatterlist *) SCint->request_buffer;
                         len = buffer->length;
-                        data = page_address(buffer->page) + buffer->offset;
+                        data = sg_virt(buffer);
                 } else {
                         DPRINTK (DEBUG_SG, "scsi%d : scatter gather not requested.\n", hostno);
                         buffer = NULL;
@@ -1239,7 +1239,7 @@ connect_loop:
                                         --nobuffs;
                                         ++buffer;
                                         len = buffer->length;
-                                        data = page_address(buffer->page) + buffer->offset;
+                                        data = sg_virt(buffer);
                                         DPRINTK (DEBUG_SG,
                                                  "scsi%d : next scatter-gather buffer len = %d address = %08x\n",
                                                  hostno, len, data);
@@ -1396,7 +1396,7 @@ connect_loop:
                                         --nobuffs;
                                         ++buffer;
                                         len = buffer->length;
-                                        data = page_address(buffer->page) + buffer->offset;
+                                        data = sg_virt(buffer);
                                         DPRINTK (DEBUG_SG, "scsi%d : next scatter-gather buffer len = %d address = %08x\n", hostno, len, data);
                                 }
                                 break;
diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
index 7238b2dfc497..cc1971002846 100644
--- a/drivers/scsi/sg.c
+++ b/drivers/scsi/sg.c
@@ -1169,7 +1169,7 @@ sg_vma_nopage(struct vm_area_struct *vma, unsigned long addr, int *type)
                 len = vma->vm_end - sa;
                 len = (len < sg->length) ? len : sg->length;
                 if (offset < len) {
-                        page = virt_to_page(page_address(sg->page) + offset);
+                        page = virt_to_page(page_address(sg_page(sg)) + offset);
                         get_page(page); /* increment page count */
                         break;
                 }
@@ -1717,13 +1717,13 @@ st_map_user_pages(struct scatterlist *sgl, const unsigned int max_pages,
                    goto out_unlock; */
         }
 
-        sgl[0].page = pages[0];
+        sg_set_page(sgl, pages[0]);
         sgl[0].offset = uaddr & ~PAGE_MASK;
         if (nr_pages > 1) {
                 sgl[0].length = PAGE_SIZE - sgl[0].offset;
                 count -= sgl[0].length;
                 for (i=1; i < nr_pages ; i++) {
-                        sgl[i].page = pages[i]; 
+                        sg_set_page(&sgl[i], pages[i]);
                         sgl[i].length = count < PAGE_SIZE ? count : PAGE_SIZE;
                         count -= PAGE_SIZE;
                 }
@@ -1754,7 +1754,7 @@ st_unmap_user_pages(struct scatterlist *sgl, const unsigned int nr_pages,
         int i;
 
         for (i=0; i < nr_pages; i++) {
-                struct page *page = sgl[i].page;
+                struct page *page = sg_page(&sgl[i]);
 
                 if (dirtied)
                         SetPageDirty(page);
@@ -1854,7 +1854,7 @@ sg_build_indirect(Sg_scatter_hold * schp, Sg_fd * sfp, int buff_size)
                                 scatter_elem_sz_prev = ret_sz;
                         }
                 }
-                sg->page = p;
+                sg_set_page(sg, p);
                 sg->length = (ret_sz > num) ? num : ret_sz;
 
                 SCSI_LOG_TIMEOUT(5, printk("sg_build_indirect: k=%d, num=%d, "
@@ -1907,14 +1907,14 @@ sg_write_xfer(Sg_request * srp)
                 onum = 1;
 
         ksglen = sg->length;
-        p = page_address(sg->page);
+        p = page_address(sg_page(sg));
         for (j = 0, k = 0; j < onum; ++j) {
                 res = sg_u_iovec(hp, iovec_count, j, 1, &usglen, &up);
                 if (res)
                         return res;
 
                 for (; p; sg = sg_next(sg), ksglen = sg->length,
-                     p = page_address(sg->page)) {
+                     p = page_address(sg_page(sg))) {
                         if (usglen <= 0)
                                 break;
                         if (ksglen > usglen) {
@@ -1991,12 +1991,12 @@ sg_remove_scat(Sg_scatter_hold * schp)
                 } else {
                         int k;
 
-                        for (k = 0; (k < schp->k_use_sg) && sg->page;
+                        for (k = 0; (k < schp->k_use_sg) && sg_page(sg);
                              ++k, sg = sg_next(sg)) {
                                 SCSI_LOG_TIMEOUT(5, printk(
                                     "sg_remove_scat: k=%d, pg=0x%p, len=%d\n",
-                                    k, sg->page, sg->length));
-                                sg_page_free(sg->page, sg->length);
+                                    k, sg_page(sg), sg->length));
+                                sg_page_free(sg_page(sg), sg->length);
                         }
                 }
                 kfree(schp->buffer);
@@ -2038,7 +2038,7 @@ sg_read_xfer(Sg_request * srp)
         } else
                 onum = 1;
 
-        p = page_address(sg->page);
+        p = page_address(sg_page(sg));
         ksglen = sg->length;
         for (j = 0, k = 0; j < onum; ++j) {
                 res = sg_u_iovec(hp, iovec_count, j, 0, &usglen, &up);
@@ -2046,7 +2046,7 @@ sg_read_xfer(Sg_request * srp)
                         return res;
 
                 for (; p; sg = sg_next(sg), ksglen = sg->length,
-                     p = page_address(sg->page)) {
+                     p = page_address(sg_page(sg))) {
                         if (usglen <= 0)
                                 break;
                         if (ksglen > usglen) {
@@ -2092,15 +2092,15 @@ sg_read_oxfer(Sg_request * srp, char __user *outp, int num_read_xfer)
         if ((!outp) || (num_read_xfer <= 0))
                 return 0;
 
-        for (k = 0; (k < schp->k_use_sg) && sg->page; ++k, sg = sg_next(sg)) {
+        for (k = 0; (k < schp->k_use_sg) && sg_page(sg); ++k, sg = sg_next(sg)) {
                 num = sg->length;
                 if (num > num_read_xfer) {
-                        if (__copy_to_user(outp, page_address(sg->page),
+                        if (__copy_to_user(outp, page_address(sg_page(sg)),
                                            num_read_xfer))
                                 return -EFAULT;
                         break;
                 } else {
-                        if (__copy_to_user(outp, page_address(sg->page),
+                        if (__copy_to_user(outp, page_address(sg_page(sg)),
                                            num))
                                 return -EFAULT;
                         num_read_xfer -= num;
diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c
index 73c44cbdea47..ce69b9efc102 100644
--- a/drivers/scsi/st.c
+++ b/drivers/scsi/st.c
@@ -3797,7 +3797,7 @@ static void buf_to_sg(struct st_buffer *STbp, unsigned int length)
         sg = &(STbp->sg[0]);
         frp = STbp->frp;
         for (i=count=0; count < length; i++) {
-                sg[i].page = frp[i].page;
+                sg_set_page(&sg[i], frp[i].page);
                 if (length - count > frp[i].length)
                         sg[i].length = frp[i].length;
                 else
@@ -4446,14 +4446,14 @@ static int sgl_map_user_pages(struct scatterlist *sgl, const unsigned int max_pa
         }
 
         /* Populate the scatter/gather list */
-        sgl[0].page = pages[0]; 
+        sg_set_page(&sgl[0], pages[0]);
         sgl[0].offset = uaddr & ~PAGE_MASK;
         if (nr_pages > 1) {
                 sgl[0].length = PAGE_SIZE - sgl[0].offset;
                 count -= sgl[0].length;
                 for (i=1; i < nr_pages ; i++) {
+                        sg_set_page(&sgl[i], pages[i]);;
                         sgl[i].offset = 0;
-                        sgl[i].page = pages[i]; 
                         sgl[i].length = count < PAGE_SIZE ? count : PAGE_SIZE;
                         count -= PAGE_SIZE;
                 }
@@ -4483,7 +4483,7 @@ static int sgl_unmap_user_pages(struct scatterlist *sgl, const unsigned int nr_p
         int i;
 
         for (i=0; i < nr_pages; i++) {
-                struct page *page = sgl[i].page;
+                struct page *page = sg_page(&sgl[i]);
 
                 if (dirtied)
                         SetPageDirty(page);
diff --git a/drivers/scsi/sun3_NCR5380.c b/drivers/scsi/sun3_NCR5380.c
index dc15a22105f7..2dcde373b20e 100644
--- a/drivers/scsi/sun3_NCR5380.c
+++ b/drivers/scsi/sun3_NCR5380.c
@@ -272,8 +272,7 @@ static struct scsi_host_template *the_template = NULL;
 #define HOSTNO          instance->host_no
 #define H_NO(cmd)       (cmd)->device->host->host_no
 
-#define SGADDR(buffer) (void *)(((unsigned long)page_address((buffer)->page)) + \
-                        (buffer)->offset)
+#define SGADDR(buffer) (void *)(((unsigned long)sg_virt(((buffer)))))
 
 #ifdef SUPPORT_TAGS
 
@@ -1596,7 +1595,7 @@ static int NCR5380_select(struct Scsi_Host *instance, struct scsi_cmnd *cmd,
      * IO while SEL is true. But again, there are some disks out the in the
      * world that do that nevertheless. (Somebody claimed that this announces
      * reselection capability of the target.) So we better skip that test and
-     * only wait for BSY... (Famous german words: Der Klügere gibt nach :-)
+     * only wait for BSY... (Famous german words: Der Klügere gibt nach :-)
      */
 
     while (time_before(jiffies, timeout) && !(NCR5380_read(STATUS_REG) & 
diff --git a/drivers/scsi/sym53c416.c b/drivers/scsi/sym53c416.c
index 8befab7e9839..90cee94d9522 100644
--- a/drivers/scsi/sym53c416.c
+++ b/drivers/scsi/sym53c416.c
@@ -196,7 +196,7 @@ static unsigned int sym53c416_base_3[2] = {0,0};
 
 #define MAXHOSTS 4
 
-#define SG_ADDRESS(buffer)     ((char *) (page_address((buffer)->page)+(buffer)->offset))
+#define SG_ADDRESS(buffer)     ((char *) sg_virt((buffer)))
 
 enum phases
 {
diff --git a/drivers/scsi/sym53c8xx_2/sym_fw2.h b/drivers/scsi/sym53c8xx_2/sym_fw2.h
index 6e5b952312e3..ae1fb179b88e 100644
--- a/drivers/scsi/sym53c8xx_2/sym_fw2.h
+++ b/drivers/scsi/sym53c8xx_2/sym_fw2.h
@@ -1781,7 +1781,7 @@ static struct SYM_FWB_SCR SYM_FWB_SCR = {
          *  While testing with bogus QUANTUM drives, the C1010 
          *  sometimes raised a spurious phase mismatch with 
          *  WSR and the CHMOV(1) triggered another PM.
-         *  Waiting explicitely for the PHASE seemed to avoid 
+         *  Waiting explicitly for the PHASE seemed to avoid
          *  the nested phase mismatch. Btw, this didn't happen 
          *  using my IBM drives.
          */
diff --git a/drivers/scsi/tmscsim.c b/drivers/scsi/tmscsim.c
index 5c72ca31a47a..44193049c4ae 100644
--- a/drivers/scsi/tmscsim.c
+++ b/drivers/scsi/tmscsim.c
@@ -430,10 +430,7 @@ static __inline__ void dc390_Going_remove (struct dc390_dcb* pDCB, struct dc390_
 
 static struct scatterlist* dc390_sg_build_single(struct scatterlist *sg, void *addr, unsigned int length)
 {
-        memset(sg, 0, sizeof(struct scatterlist));
-        sg->page        = virt_to_page(addr);
-        sg->length      = length;
-        sg->offset      = (unsigned long)addr & ~PAGE_MASK;
+        sg_init_one(sg, addr, length);
         return sg;
 }
 
diff --git a/drivers/scsi/ultrastor.c b/drivers/scsi/ultrastor.c
index ea72bbeb8f9d..6d1f0edd7985 100644
--- a/drivers/scsi/ultrastor.c
+++ b/drivers/scsi/ultrastor.c
@@ -681,7 +681,7 @@ static inline void build_sg_list(struct mscp *mscp, struct scsi_cmnd *SCpnt)
 
         max = scsi_sg_count(SCpnt);
         scsi_for_each_sg(SCpnt, sg, max, i) {
-                mscp->sglist[i].address = isa_page_to_bus(sg->page) + sg->offset;
+                mscp->sglist[i].address = isa_page_to_bus(sg_page(sg)) + sg->offset;
                 mscp->sglist[i].num_bytes = sg->length;
                 transfer_length += sg->length;
         }
diff --git a/drivers/scsi/wd33c93.c b/drivers/scsi/wd33c93.c
index 0e8e642fd3b0..fdbb92d1f722 100644
--- a/drivers/scsi/wd33c93.c
+++ b/drivers/scsi/wd33c93.c
@@ -410,8 +410,7 @@ wd33c93_queuecommand(struct scsi_cmnd *cmd,
         if (cmd->use_sg) {
                 cmd->SCp.buffer = (struct scatterlist *) cmd->request_buffer;
                 cmd->SCp.buffers_residual = cmd->use_sg - 1;
-                cmd->SCp.ptr = page_address(cmd->SCp.buffer->page) +
-                    cmd->SCp.buffer->offset;
+                cmd->SCp.ptr = sg_virt(cmd->SCp.buffer);
                 cmd->SCp.this_residual = cmd->SCp.buffer->length;
         } else {
                 cmd->SCp.buffer = NULL;
@@ -745,8 +744,7 @@ transfer_bytes(const wd33c93_regs regs, struct scsi_cmnd *cmd,
                 ++cmd->SCp.buffer;
                 --cmd->SCp.buffers_residual;
                 cmd->SCp.this_residual = cmd->SCp.buffer->length;
-                cmd->SCp.ptr = page_address(cmd->SCp.buffer->page) +
-                    cmd->SCp.buffer->offset;
+                cmd->SCp.ptr = sg_virt(cmd->SCp.buffer);
         }
         if (!cmd->SCp.this_residual) /* avoid bogus setups */
                 return;
diff --git a/drivers/scsi/wd33c93.h b/drivers/scsi/wd33c93.h
index 61ffb860dacc..00123f2383d7 100644
--- a/drivers/scsi/wd33c93.h
+++ b/drivers/scsi/wd33c93.h
@@ -155,7 +155,7 @@
 #define WD33C93_FS_12_15 OWNID_FS_12
 #define WD33C93_FS_16_20 OWNID_FS_16
 
-   /* pass input-clock explicitely. accepted mhz values are 8-10,12-20 */
+   /* pass input-clock explicitly. accepted mhz values are 8-10,12-20 */
 #define WD33C93_FS_MHZ(mhz) (mhz)
 
    /* Control register */
diff --git a/drivers/scsi/wd7000.c b/drivers/scsi/wd7000.c
index 255c611e78b8..03cd44f231df 100644
--- a/drivers/scsi/wd7000.c
+++ b/drivers/scsi/wd7000.c
@@ -1123,7 +1123,7 @@ static int wd7000_queuecommand(struct scsi_cmnd *SCpnt,
                 any2scsi(scb->maxlen, nseg * sizeof(Sgb));
 
                 scsi_for_each_sg(SCpnt, sg, nseg, i) {
-                        any2scsi(sgb[i].ptr, isa_page_to_bus(sg->page) + sg->offset);
+                        any2scsi(sgb[i].ptr, isa_page_to_bus(sg_page(sg)) + sg->offset);
                         any2scsi(sgb[i].len, sg->length);
                 }
         } else {