From: Jens Axboe <[EMAIL PROTECTED]>

Signed-off-by: Jens Axboe <[EMAIL PROTECTED]>
---
 drivers/ide/arm/icside.c      |    6 +++---
 drivers/ide/cris/ide-cris.c   |    2 +-
 drivers/ide/ide-dma.c         |    8 ++++----
 drivers/ide/ide-io.c          |    2 +-
 drivers/ide/ide-probe.c       |    6 +-----
 drivers/ide/ide-taskfile.c    |    2 +-
 drivers/ide/ide.c             |    2 +-
 drivers/ide/mips/au1xxx-ide.c |    8 ++++----
 drivers/ide/pci/sgiioc4.c     |    4 ++--
 drivers/ide/ppc/pmac.c        |    6 +++---
 drivers/scsi/ide-scsi.c       |    2 +-
 include/linux/ide.h           |    2 +-
 12 files changed, 23 insertions(+), 27 deletions(-)

diff --git a/drivers/ide/arm/icside.c b/drivers/ide/arm/icside.c
index 93f71fc..a48a6bd 100644
--- a/drivers/ide/arm/icside.c
+++ b/drivers/ide/arm/icside.c
@@ -210,7 +210,7 @@ static void icside_build_sglist(ide_drive_t *drive, struct 
request *rq)
 {
        ide_hwif_t *hwif = drive->hwif;
        struct icside_state *state = hwif->hwif_data;
-       struct scatterlist *sg = hwif->sg_table;
+       struct scatterlist *sg = hwif->sg_table.sgl;
 
        ide_map_sg(drive, rq);
 
@@ -319,7 +319,7 @@ static int icside_dma_end(ide_drive_t *drive)
        disable_dma(ECARD_DEV(state->dev)->dma);
 
        /* Teardown mappings after DMA has completed. */
-       dma_unmap_sg(state->dev, hwif->sg_table, hwif->sg_nents,
+       dma_unmap_sg(state->dev, hwif->sg_table.sgl, hwif->sg_nents,
                     hwif->sg_dma_direction);
 
        return get_dma_residue(ECARD_DEV(state->dev)->dma) != 0;
@@ -373,7 +373,7 @@ static int icside_dma_setup(ide_drive_t *drive)
         * Tell the DMA engine about the SG table and
         * data direction.
         */
-       set_dma_sg(ECARD_DEV(state->dev)->dma, hwif->sg_table, hwif->sg_nents);
+       set_dma_sg(ECARD_DEV(state->dev)->dma, hwif->sg_table.sgl, 
hwif->sg_nents);
        set_dma_mode(ECARD_DEV(state->dev)->dma, dma_mode);
 
        drive->waiting_for_dma = 1;
diff --git a/drivers/ide/cris/ide-cris.c b/drivers/ide/cris/ide-cris.c
index 476e0d6..3701aca 100644
--- a/drivers/ide/cris/ide-cris.c
+++ b/drivers/ide/cris/ide-cris.c
@@ -919,7 +919,7 @@ static int cris_ide_build_dmatable (ide_drive_t *drive)
        unsigned int count = 0;
        int i = 0;
 
-       sg = hwif->sg_table;
+       sg = hwif->sg_table.sgl;
 
        ata_tot_size = 0;
 
diff --git a/drivers/ide/ide-dma.c b/drivers/ide/ide-dma.c
index 4703837..33a2f56 100644
--- a/drivers/ide/ide-dma.c
+++ b/drivers/ide/ide-dma.c
@@ -190,7 +190,7 @@ static int ide_dma_good_drive(ide_drive_t *drive)
 int ide_build_sglist(ide_drive_t *drive, struct request *rq)
 {
        ide_hwif_t *hwif = HWIF(drive);
-       struct scatterlist *sg = hwif->sg_table;
+       struct scatterlist *sg = hwif->sg_table.sgl;
 
        BUG_ON((rq->cmd_type == REQ_TYPE_ATA_TASKFILE) && rq->nr_sectors > 256);
 
@@ -234,7 +234,7 @@ int ide_build_dmatable (ide_drive_t *drive, struct request 
*rq)
        if (!i)
                return 0;
 
-       sg = hwif->sg_table;
+       sg = hwif->sg_table.sgl;
        while (i) {
                u32 cur_addr;
                u32 cur_len;
@@ -293,7 +293,7 @@ int ide_build_dmatable (ide_drive_t *drive, struct request 
*rq)
        printk(KERN_ERR "%s: empty DMA table?\n", drive->name);
 use_pio_instead:
        pci_unmap_sg(hwif->pci_dev,
-                    hwif->sg_table,
+                    hwif->sg_table.sgl,
                     hwif->sg_nents,
                     hwif->sg_dma_direction);
        return 0; /* revert to PIO for this request */
@@ -315,7 +315,7 @@ EXPORT_SYMBOL_GPL(ide_build_dmatable);
 void ide_destroy_dmatable (ide_drive_t *drive)
 {
        struct pci_dev *dev = HWIF(drive)->pci_dev;
-       struct scatterlist *sg = HWIF(drive)->sg_table;
+       struct scatterlist *sg = HWIF(drive)->sg_table.sgl;
        int nents = HWIF(drive)->sg_nents;
 
        pci_unmap_sg(dev, sg, nents, HWIF(drive)->sg_dma_direction);
diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index bef781f..638e2db 100644
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -819,7 +819,7 @@ static ide_startstop_t do_special (ide_drive_t *drive)
 void ide_map_sg(ide_drive_t *drive, struct request *rq)
 {
        ide_hwif_t *hwif = drive->hwif;
-       struct scatterlist *sg = hwif->sg_table;
+       struct scatterlist *sg = hwif->sg_table.sgl;
 
        if (hwif->sg_mapped)    /* needed by ide-scsi */
                return;
diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
index 2994523..770f8cf 100644
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -1312,15 +1312,11 @@ static int hwif_init(ide_hwif_t *hwif)
        if (!hwif->sg_max_nents)
                hwif->sg_max_nents = PRD_ENTRIES;
 
-       hwif->sg_table = kmalloc(sizeof(struct scatterlist)*hwif->sg_max_nents,
-                                GFP_KERNEL);
-       if (!hwif->sg_table) {
+       if (sg_alloc_table(&hwif->sg_table, hwif->sg_max_nents, GFP_KERNEL)) {
                printk(KERN_ERR "%s: unable to allocate SG table.\n", 
hwif->name);
                goto out;
        }
 
-       sg_init_table(hwif->sg_table, hwif->sg_max_nents);
-       
        if (init_irq(hwif) == 0)
                goto done;
 
diff --git a/drivers/ide/ide-taskfile.c b/drivers/ide/ide-taskfile.c
index 2b60f1b..0a898d9 100644
--- a/drivers/ide/ide-taskfile.c
+++ b/drivers/ide/ide-taskfile.c
@@ -246,7 +246,7 @@ static u8 wait_drive_not_busy(ide_drive_t *drive)
 static void ide_pio_sector(ide_drive_t *drive, unsigned int write)
 {
        ide_hwif_t *hwif = drive->hwif;
-       struct scatterlist *sg = hwif->sg_table;
+       struct scatterlist *sg = hwif->sg_table.sgl;
        struct scatterlist *cursg = hwif->cursg;
        struct page *page;
 #ifdef CONFIG_HIGHMEM
diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c
index 54943da..a2ad85a 100644
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@@ -594,7 +594,7 @@ void ide_unregister(unsigned int index)
         * Remove us from the kernel's knowledge
         */
        blk_unregister_region(MKDEV(hwif->major, 0), MAX_DRIVES<<PARTN_BITS);
-       kfree(hwif->sg_table);
+       sg_free_table(&hwif->sg_table);
        unregister_blkdev(hwif->major, hwif->name);
        spin_lock_irq(&ide_lock);
 
diff --git a/drivers/ide/mips/au1xxx-ide.c b/drivers/ide/mips/au1xxx-ide.c
index a4ce3ba..bccf3c0 100644
--- a/drivers/ide/mips/au1xxx-ide.c
+++ b/drivers/ide/mips/au1xxx-ide.c
@@ -216,7 +216,7 @@ static int auide_build_sglist(ide_drive_t *drive,  struct 
request *rq)
 {
        ide_hwif_t *hwif = drive->hwif;
        _auide_hwif *ahwif = (_auide_hwif*)hwif->hwif_data;
-       struct scatterlist *sg = hwif->sg_table;
+       struct scatterlist *sg = hwif->sg_table.sgl;
 
        ide_map_sg(drive, rq);
 
@@ -250,7 +250,7 @@ static int auide_build_dmatable(ide_drive_t *drive)
                return 0;
 
        /* fill the descriptors */
-       sg = hwif->sg_table;
+       sg = hwif->sg_table.sgl;
        while (i && sg_dma_len(sg)) {
                u32 cur_addr;
                u32 cur_len;
@@ -303,7 +303,7 @@ static int auide_build_dmatable(ide_drive_t *drive)
 
  use_pio_instead:
        dma_unmap_sg(ahwif->dev,
-                    hwif->sg_table,
+                    hwif->sg_table.sgl,
                     hwif->sg_nents,
                     hwif->sg_dma_direction);
 
@@ -316,7 +316,7 @@ static int auide_dma_end(ide_drive_t *drive)
        _auide_hwif *ahwif = (_auide_hwif*)hwif->hwif_data;
 
        if (hwif->sg_nents) {
-               dma_unmap_sg(ahwif->dev, hwif->sg_table, hwif->sg_nents,
+               dma_unmap_sg(ahwif->dev, hwif->sg_table.sgl, hwif->sg_nents,
                             hwif->sg_dma_direction);
                hwif->sg_nents = 0;
        }
diff --git a/drivers/ide/pci/sgiioc4.c b/drivers/ide/pci/sgiioc4.c
index de820aa..3ad9e4b 100644
--- a/drivers/ide/pci/sgiioc4.c
+++ b/drivers/ide/pci/sgiioc4.c
@@ -487,7 +487,7 @@ sgiioc4_build_dma_table(ide_drive_t * drive, struct request 
*rq, int ddir)
        if (!i)
                return 0;       /* sglist of length Zero */
 
-       sg = hwif->sg_table;
+       sg = hwif->sg_table.sgl;
        while (i && sg_dma_len(sg)) {
                dma_addr_t cur_addr;
                int cur_len;
@@ -535,7 +535,7 @@ sgiioc4_build_dma_table(ide_drive_t * drive, struct request 
*rq, int ddir)
        }
 
 use_pio_instead:
-       pci_unmap_sg(hwif->pci_dev, hwif->sg_table, hwif->sg_nents,
+       pci_unmap_sg(hwif->pci_dev, hwif->sg_table.sgl, hwif->sg_nents,
                     hwif->sg_dma_direction);
 
        return 0;               /* revert to PIO for this request */
diff --git a/drivers/ide/ppc/pmac.c b/drivers/ide/ppc/pmac.c
index 7f7a598..b982180 100644
--- a/drivers/ide/ppc/pmac.c
+++ b/drivers/ide/ppc/pmac.c
@@ -1503,7 +1503,7 @@ pmac_ide_build_dmatable(ide_drive_t *drive, struct 
request *rq)
                return 0;
 
        /* Build DBDMA commands list */
-       sg = hwif->sg_table;
+       sg = hwif->sg_table.sgl;
        while (i && sg_dma_len(sg)) {
                u32 cur_addr;
                u32 cur_len;
@@ -1555,7 +1555,7 @@ pmac_ide_build_dmatable(ide_drive_t *drive, struct 
request *rq)
        printk(KERN_DEBUG "%s: empty DMA table?\n", drive->name);
  use_pio_instead:
        pci_unmap_sg(hwif->pci_dev,
-                    hwif->sg_table,
+                    hwif->sg_table.sgl,
                     hwif->sg_nents,
                     hwif->sg_dma_direction);
        return 0; /* revert to PIO for this request */
@@ -1567,7 +1567,7 @@ pmac_ide_destroy_dmatable (ide_drive_t *drive)
 {
        ide_hwif_t *hwif = drive->hwif;
        struct pci_dev *dev = HWIF(drive)->pci_dev;
-       struct scatterlist *sg = hwif->sg_table;
+       struct scatterlist *sg = hwif->sg_table.sgl;
        int nents = hwif->sg_nents;
 
        if (nents) {
diff --git a/drivers/scsi/ide-scsi.c b/drivers/scsi/ide-scsi.c
index 9706de9..762bd93 100644
--- a/drivers/scsi/ide-scsi.c
+++ b/drivers/scsi/ide-scsi.c
@@ -553,7 +553,7 @@ static int idescsi_map_sg(ide_drive_t *drive, idescsi_pc_t 
*pc)
        if (idescsi_set_direction(pc))
                return 1;
 
-       sg = hwif->sg_table;
+       sg = hwif->sg_table.sgl;
        scsi_sg = scsi_sglist(pc->scsi_cmd);
        segments = scsi_sg_count(pc->scsi_cmd);
 
diff --git a/include/linux/ide.h b/include/linux/ide.h
index 9a6a41e..80ff2ee 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -750,7 +750,7 @@ typedef struct hwif_s {
        /* dma physical region descriptor table (dma view) */
        dma_addr_t      dmatable_dma;
        /* Scatter-gather list used to build the above */
-       struct scatterlist *sg_table;
+       struct sg_table sg_table;
        int sg_max_nents;               /* Maximum number of entries in it */
        int sg_nents;                   /* Current number of entries in it */
        int sg_dma_direction;           /* dma transfer direction */
-- 
1.5.3.3


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