diff options
| -rw-r--r-- | drivers/ide/cris/ide-cris.c | 3 | ||||
| -rw-r--r-- | drivers/ide/ide-dma.c | 2 | ||||
| -rw-r--r-- | drivers/ide/ide-io.c | 3 | ||||
| -rw-r--r-- | drivers/ide/ide-probe.c | 2 | ||||
| -rw-r--r-- | drivers/ide/ide-taskfile.c | 18 | ||||
| -rw-r--r-- | drivers/ide/mips/au1xxx-ide.c | 2 | ||||
| -rw-r--r-- | drivers/ide/pci/sgiioc4.c | 3 | ||||
| -rw-r--r-- | drivers/ide/ppc/pmac.c | 2 | ||||
| -rw-r--r-- | include/linux/ide.h | 2 |
9 files changed, 25 insertions, 12 deletions
diff --git a/drivers/ide/cris/ide-cris.c b/drivers/ide/cris/ide-cris.c index 2b4d2a0ae5c..c306c9f534a 100644 --- a/drivers/ide/cris/ide-cris.c +++ b/drivers/ide/cris/ide-cris.c @@ -939,7 +939,8 @@ static int cris_ide_build_dmatable (ide_drive_t *drive) /* group sequential buffers into one large buffer */ addr = page_to_phys(sg->page) + sg->offset; size = sg_dma_len(sg); - while (sg++, --i) { + while (--i) { + sg = sg_next(sg); if ((addr + size) != page_to_phys(sg->page) + sg->offset) break; size += sg_dma_len(sg); diff --git a/drivers/ide/ide-dma.c b/drivers/ide/ide-dma.c index b453211ee0f..a4cbbbaccde 100644 --- a/drivers/ide/ide-dma.c +++ b/drivers/ide/ide-dma.c @@ -280,7 +280,7 @@ int ide_build_dmatable (ide_drive_t *drive, struct request *rq) } } - sg++; + sg = sg_next(sg); i--; } diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c index f36ff5962af..04273d3c147 100644 --- a/drivers/ide/ide-io.c +++ b/drivers/ide/ide-io.c @@ -846,7 +846,8 @@ void ide_init_sg_cmd(ide_drive_t *drive, struct request *rq) ide_hwif_t *hwif = drive->hwif; hwif->nsect = hwif->nleft = rq->nr_sectors; - hwif->cursg = hwif->cursg_ofs = 0; + hwif->cursg_ofs = 0; + hwif->cursg = NULL; } EXPORT_SYMBOL_GPL(ide_init_sg_cmd); diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c index d1011712601..34b1fb65bc7 100644 --- a/drivers/ide/ide-probe.c +++ b/drivers/ide/ide-probe.c @@ -1349,7 +1349,7 @@ 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, + hwif->sg_table = kzalloc(sizeof(struct scatterlist)*hwif->sg_max_nents, GFP_KERNEL); if (!hwif->sg_table) { printk(KERN_ERR "%s: unable to allocate SG table.\n", hwif->name); diff --git a/drivers/ide/ide-taskfile.c b/drivers/ide/ide-taskfile.c index aa06dafb74a..2a3c8d49834 100644 --- a/drivers/ide/ide-taskfile.c +++ b/drivers/ide/ide-taskfile.c @@ -45,6 +45,7 @@ #include <linux/hdreg.h> #include <linux/ide.h> #include <linux/bitops.h> +#include <linux/scatterlist.h> #include <asm/byteorder.h> #include <asm/irq.h> @@ -263,6 +264,7 @@ 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 *cursg = hwif->cursg; struct page *page; #ifdef CONFIG_HIGHMEM unsigned long flags; @@ -270,8 +272,14 @@ static void ide_pio_sector(ide_drive_t *drive, unsigned int write) unsigned int offset; u8 *buf; - page = sg[hwif->cursg].page; - offset = sg[hwif->cursg].offset + hwif->cursg_ofs * SECTOR_SIZE; + cursg = hwif->cursg; + if (!cursg) { + cursg = sg; + hwif->cursg = sg; + } + + page = cursg->page; + offset = cursg->offset + hwif->cursg_ofs * SECTOR_SIZE; /* get the current page and offset */ page = nth_page(page, (offset >> PAGE_SHIFT)); @@ -285,8 +293,8 @@ static void ide_pio_sector(ide_drive_t *drive, unsigned int write) hwif->nleft--; hwif->cursg_ofs++; - if ((hwif->cursg_ofs * SECTOR_SIZE) == sg[hwif->cursg].length) { - hwif->cursg++; + if ((hwif->cursg_ofs * SECTOR_SIZE) == cursg->length) { + hwif->cursg = sg_next(hwif->cursg); hwif->cursg_ofs = 0; } @@ -367,6 +375,8 @@ static ide_startstop_t task_error(ide_drive_t *drive, struct request *rq, static void task_end_request(ide_drive_t *drive, struct request *rq, u8 stat) { + HWIF(drive)->cursg = NULL; + if (rq->cmd_type == REQ_TYPE_ATA_TASKFILE) { ide_task_t *task = rq->special; diff --git a/drivers/ide/mips/au1xxx-ide.c b/drivers/ide/mips/au1xxx-ide.c index aebde49365d..892d08f61dc 100644 --- a/drivers/ide/mips/au1xxx-ide.c +++ b/drivers/ide/mips/au1xxx-ide.c @@ -296,7 +296,7 @@ static int auide_build_dmatable(ide_drive_t *drive) cur_addr += tc; cur_len -= tc; } - sg++; + sg = sg_next(sg); i--; } diff --git a/drivers/ide/pci/sgiioc4.c b/drivers/ide/pci/sgiioc4.c index 85ffaaa39b1..c74fef6bbc9 100644 --- a/drivers/ide/pci/sgiioc4.c +++ b/drivers/ide/pci/sgiioc4.c @@ -29,6 +29,7 @@ #include <linux/mm.h> #include <linux/ioport.h> #include <linux/blkdev.h> +#include <linux/scatterlist.h> #include <linux/ioc4.h> #include <asm/io.h> @@ -537,7 +538,7 @@ sgiioc4_build_dma_table(ide_drive_t * drive, struct request *rq, int ddir) } } - sg++; + sg = sg_next(sg); i--; } diff --git a/drivers/ide/ppc/pmac.c b/drivers/ide/ppc/pmac.c index 7d8873839e2..9e86406bf44 100644 --- a/drivers/ide/ppc/pmac.c +++ b/drivers/ide/ppc/pmac.c @@ -1539,7 +1539,7 @@ pmac_ide_build_dmatable(ide_drive_t *drive, struct request *rq) cur_len -= tc; ++table; } - sg++; + sg = sg_next(sg); i--; } diff --git a/include/linux/ide.h b/include/linux/ide.h index 234fa3df24f..30a1931466a 100644 --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -772,7 +772,7 @@ typedef struct hwif_s { unsigned int nsect; unsigned int nleft; - unsigned int cursg; + struct scatterlist *cursg; unsigned int cursg_ofs; int rqsize; /* max sectors per request */ |