Commit 9f2f568c authored by Andrew Morton's avatar Andrew Morton Committed by Patrick Mochel

[PATCH] 64-bit sector_t - various driver changes

peter's code works for me, and the 40-odd people who download
the -mm patches.  Anton has tested it on ppc64 and I presume that
Peter has tested it on ia64.  I use gcc-2.91.66 and others use
later compilers.  I expect that any remaining problems will
mainly be caught by the compiler.  And compiler bugs can be
detected by turning off the option in config and seeing if things
get better.

From Peter Chubb

 - do_request() function takes sector_t not unsigned long as the
   block number to operate on.
 - Various casts to long where the underlying device can never get
   big enough to warrant a 64-bit sector offset.
 - Cast sector_t to unsigned long long when printing.
parent 7eb32c6d
...@@ -68,17 +68,22 @@ int add_partition(struct block_device *bdev, struct blkpg_partition *p) ...@@ -68,17 +68,22 @@ int add_partition(struct block_device *bdev, struct blkpg_partition *p)
{ {
struct gendisk *g; struct gendisk *g;
long long ppstart, pplength; long long ppstart, pplength;
long pstart, plength;
int part, i; int part, i;
/* convert bytes to sectors, check for fit in a hd_struct */ /* convert bytes to sectors */
ppstart = (p->start >> 9); ppstart = (p->start >> 9);
pplength = (p->length >> 9); pplength = (p->length >> 9);
pstart = ppstart;
plength = pplength; /* check for fit in a hd_struct */
if (pstart != ppstart || plength != pplength if (sizeof(sector_t) == sizeof(long) &&
|| pstart < 0 || plength < 0) sizeof(long long) > sizeof(long)) {
return -EINVAL; long pstart, plength;
pstart = ppstart;
plength = pplength;
if (pstart != ppstart || plength != pplength
|| pstart < 0 || plength < 0)
return -EINVAL;
}
/* find the drive major */ /* find the drive major */
g = get_gendisk(bdev->bd_dev, &part); g = get_gendisk(bdev->bd_dev, &part);
...@@ -101,13 +106,13 @@ int add_partition(struct block_device *bdev, struct blkpg_partition *p) ...@@ -101,13 +106,13 @@ int add_partition(struct block_device *bdev, struct blkpg_partition *p)
/* overlap? */ /* overlap? */
for (i = 0; i < (1<<g->minor_shift) - 1; i++) for (i = 0; i < (1<<g->minor_shift) - 1; i++)
if (!(pstart+plength <= g->part[i].start_sect || if (!(ppstart+pplength <= g->part[i].start_sect ||
pstart >= g->part[i].start_sect + g->part[i].nr_sects)) ppstart >= g->part[i].start_sect + g->part[i].nr_sects))
return -EBUSY; return -EBUSY;
/* all seems OK */ /* all seems OK */
g->part[p->pno - 1].start_sect = pstart; g->part[p->pno - 1].start_sect = ppstart;
g->part[p->pno - 1].nr_sects = plength; g->part[p->pno - 1].nr_sects = pplength;
update_partition(g, p->pno); update_partition(g, p->pno);
return 0; return 0;
} }
...@@ -259,10 +264,17 @@ int blk_ioctl(struct block_device *bdev, unsigned int cmd, unsigned long arg) ...@@ -259,10 +264,17 @@ int blk_ioctl(struct block_device *bdev, unsigned int cmd, unsigned long arg)
intval = bdev_hardsect_size(bdev); intval = bdev_hardsect_size(bdev);
return put_user(intval, (int *) arg); return put_user(intval, (int *) arg);
case BLKGETSIZE: case BLKGETSIZE:
{
unsigned long ret;
/* size in sectors, works up to 2 TB */ /* size in sectors, works up to 2 TB */
ullval = bdev->bd_inode->i_size; ullval = bdev->bd_inode->i_size;
return put_user((unsigned long)(ullval >> 9), (unsigned long *) arg); ret = ullval >> 9;
if ((u64)ret != (ullval >> 9))
return -EFBIG;
return put_user(ret, (unsigned long *) arg);
}
case BLKGETSIZE64: case BLKGETSIZE64:
/* size in bytes */ /* size in bytes */
ullval = bdev->bd_inode->i_size; ullval = bdev->bd_inode->i_size;
......
...@@ -492,7 +492,7 @@ static struct floppy_struct *current_type[N_DRIVE]; ...@@ -492,7 +492,7 @@ static struct floppy_struct *current_type[N_DRIVE];
*/ */
static struct floppy_struct user_params[N_DRIVE]; static struct floppy_struct user_params[N_DRIVE];
static int floppy_sizes[256]; static sector_t floppy_sizes[256];
/* /*
* The driver is trying to determine the correct media format * The driver is trying to determine the correct media format
...@@ -2652,8 +2652,8 @@ static int make_raw_rw_request(void) ...@@ -2652,8 +2652,8 @@ static int make_raw_rw_request(void)
max_sector = _floppy->sect * _floppy->head; max_sector = _floppy->sect * _floppy->head;
TRACK = current_req->sector / max_sector; TRACK = (int)current_req->sector / max_sector;
fsector_t = current_req->sector % max_sector; fsector_t = (int)current_req->sector % max_sector;
if (_floppy->track && TRACK >= _floppy->track) { if (_floppy->track && TRACK >= _floppy->track) {
if (current_req->current_nr_sectors & 1) { if (current_req->current_nr_sectors & 1) {
current_count_sectors = 1; current_count_sectors = 1;
...@@ -2990,7 +2990,7 @@ static void do_fd_request(request_queue_t * q) ...@@ -2990,7 +2990,7 @@ static void do_fd_request(request_queue_t * q)
if (usage_count == 0) { if (usage_count == 0) {
printk("warning: usage count=0, current_req=%p exiting\n", current_req); printk("warning: usage count=0, current_req=%p exiting\n", current_req);
printk("sect=%ld flags=%lx\n", current_req->sector, current_req->flags); printk("sect=%ld flags=%lx\n", (long)current_req->sector, current_req->flags);
return; return;
} }
if (fdc_busy){ if (fdc_busy){
......
...@@ -1163,7 +1163,7 @@ static int cdrom_read_from_buffer (ide_drive_t *drive) ...@@ -1163,7 +1163,7 @@ static int cdrom_read_from_buffer (ide_drive_t *drive)
if (rq->current_nr_sectors < bio_sectors(rq->bio) && if (rq->current_nr_sectors < bio_sectors(rq->bio) &&
(rq->sector % SECTORS_PER_FRAME) != 0) { (rq->sector % SECTORS_PER_FRAME) != 0) {
printk("%s: cdrom_read_from_buffer: buffer botch (%ld)\n", printk("%s: cdrom_read_from_buffer: buffer botch (%ld)\n",
drive->name, rq->sector); drive->name, (long)rq->sector);
cdrom_end_request(drive, 0); cdrom_end_request(drive, 0);
return -1; return -1;
} }
...@@ -1750,7 +1750,7 @@ static ide_startstop_t cdrom_do_block_pc(ide_drive_t *drive, struct request *rq) ...@@ -1750,7 +1750,7 @@ static ide_startstop_t cdrom_do_block_pc(ide_drive_t *drive, struct request *rq)
* cdrom driver request routine. * cdrom driver request routine.
*/ */
static ide_startstop_t static ide_startstop_t
ide_do_rw_cdrom (ide_drive_t *drive, struct request *rq, unsigned long block) ide_do_rw_cdrom (ide_drive_t *drive, struct request *rq, sector_t block)
{ {
ide_startstop_t action; ide_startstop_t action;
struct cdrom_info *info = drive->driver_data; struct cdrom_info *info = drive->driver_data;
...@@ -2775,12 +2775,14 @@ static void ide_cdrom_add_settings(ide_drive_t *drive) ...@@ -2775,12 +2775,14 @@ static void ide_cdrom_add_settings(ide_drive_t *drive)
static int ll_10byte_cmd_build(request_queue_t *q, struct request *rq) static int ll_10byte_cmd_build(request_queue_t *q, struct request *rq)
{ {
int hard_sect = queue_hardsect_size(q); int hard_sect = queue_hardsect_size(q);
sector_t block = rq->hard_sector / (hard_sect >> 9); long block = (long)rq->hard_sector / (hard_sect >> 9);
unsigned long blocks = rq->hard_nr_sectors / (hard_sect >> 9); unsigned long blocks = rq->hard_nr_sectors / (hard_sect >> 9);
if (!(rq->flags & REQ_CMD)) if (!(rq->flags & REQ_CMD))
return 0; return 0;
BUG_ON(sizeof(rq->hard_sector) > 4 && (rq->hard_sector >> 32));
if (rq->hard_nr_sectors != rq->nr_sectors) { if (rq->hard_nr_sectors != rq->nr_sectors) {
printk(KERN_ERR "ide-cd: hard_nr_sectors differs from nr_sectors! %lu %lu\n", printk(KERN_ERR "ide-cd: hard_nr_sectors differs from nr_sectors! %lu %lu\n",
rq->nr_sectors, rq->hard_nr_sectors); rq->nr_sectors, rq->hard_nr_sectors);
......
...@@ -371,7 +371,7 @@ static int idedisk_start_tag(ide_drive_t *drive, struct request *rq) ...@@ -371,7 +371,7 @@ static int idedisk_start_tag(ide_drive_t *drive, struct request *rq)
* using LBA if supported, or CHS otherwise, to address sectors. * using LBA if supported, or CHS otherwise, to address sectors.
* It also takes care of issuing special DRIVE_CMDs. * It also takes care of issuing special DRIVE_CMDs.
*/ */
static ide_startstop_t do_rw_disk (ide_drive_t *drive, struct request *rq, unsigned long block) static ide_startstop_t do_rw_disk (ide_drive_t *drive, struct request *rq, sector_t block)
{ {
ide_hwif_t *hwif = HWIF(drive); ide_hwif_t *hwif = HWIF(drive);
u8 lba48 = (drive->addressing == 1) ? 1 : 0; u8 lba48 = (drive->addressing == 1) ? 1 : 0;
...@@ -418,10 +418,13 @@ static ide_startstop_t do_rw_disk (ide_drive_t *drive, struct request *rq, unsig ...@@ -418,10 +418,13 @@ static ide_startstop_t do_rw_disk (ide_drive_t *drive, struct request *rq, unsig
tasklets[5] = (task_ioreg_t) (block>>8); tasklets[5] = (task_ioreg_t) (block>>8);
tasklets[6] = (task_ioreg_t) (block>>16); tasklets[6] = (task_ioreg_t) (block>>16);
tasklets[7] = (task_ioreg_t) (block>>24); tasklets[7] = (task_ioreg_t) (block>>24);
tasklets[8] = (task_ioreg_t) 0; if (sizeof(block) == 4) {
tasklets[9] = (task_ioreg_t) 0; tasklets[8] = (task_ioreg_t) 0;
// tasklets[8] = (task_ioreg_t) (block>>32); tasklets[9] = (task_ioreg_t) 0;
// tasklets[9] = (task_ioreg_t) (block>>40); } else {
tasklets[8] = (task_ioreg_t)((u64)block >> 32);
tasklets[9] = (task_ioreg_t)((u64)block >> 40);
}
#ifdef DEBUG #ifdef DEBUG
printk("%s: %sing: LBAsect=%lu, sectors=%ld, " printk("%s: %sing: LBAsect=%lu, sectors=%ld, "
"buffer=0x%08lx, LBAsect=0x%012lx\n", "buffer=0x%08lx, LBAsect=0x%012lx\n",
...@@ -450,10 +453,11 @@ static ide_startstop_t do_rw_disk (ide_drive_t *drive, struct request *rq, unsig ...@@ -450,10 +453,11 @@ static ide_startstop_t do_rw_disk (ide_drive_t *drive, struct request *rq, unsig
hwif->OUTB(0x00|drive->select.all,IDE_SELECT_REG); hwif->OUTB(0x00|drive->select.all,IDE_SELECT_REG);
} else { } else {
#ifdef DEBUG #ifdef DEBUG
printk("%s: %sing: LBAsect=%ld, sectors=%d, " printk("%s: %sing: LBAsect=%llu, sectors=%ld, "
"buffer=0x%08lx\n", "buffer=0x%08lx\n",
drive->name,rq_data_dir(rq)==READ?"read":"writ", drive->name,
block, nsectors.b.low, rq_data_dir(rq)==READ?"read":"writ",
(unsigned long long)block, rq->nr_sectors,
(unsigned long) rq->buffer); (unsigned long) rq->buffer);
#endif #endif
if (blk_rq_tagged(rq)) { if (blk_rq_tagged(rq)) {
...@@ -471,8 +475,8 @@ static ide_startstop_t do_rw_disk (ide_drive_t *drive, struct request *rq, unsig ...@@ -471,8 +475,8 @@ static ide_startstop_t do_rw_disk (ide_drive_t *drive, struct request *rq, unsig
} }
} else { } else {
unsigned int sect,head,cyl,track; unsigned int sect,head,cyl,track;
track = block / drive->sect; track = (int)block / drive->sect;
sect = block % drive->sect + 1; sect = (int)block % drive->sect + 1;
hwif->OUTB(sect, IDE_SECTOR_REG); hwif->OUTB(sect, IDE_SECTOR_REG);
head = track % drive->head; head = track % drive->head;
cyl = track / drive->head; cyl = track / drive->head;
...@@ -586,7 +590,7 @@ static ide_startstop_t lba_48_rw_disk(ide_drive_t *, struct request *, unsigned ...@@ -586,7 +590,7 @@ static ide_startstop_t lba_48_rw_disk(ide_drive_t *, struct request *, unsigned
* using LBA if supported, or CHS otherwise, to address sectors. * using LBA if supported, or CHS otherwise, to address sectors.
* It also takes care of issuing special DRIVE_CMDs. * It also takes care of issuing special DRIVE_CMDs.
*/ */
static ide_startstop_t do_rw_disk (ide_drive_t *drive, struct request *rq, unsigned long block) static ide_startstop_t do_rw_disk (ide_drive_t *drive, struct request *rq, sector_t block)
{ {
BUG_ON(drive->blocked); BUG_ON(drive->blocked);
if (!blk_fs_request(rq)) { if (!blk_fs_request(rq)) {
...@@ -901,8 +905,8 @@ static u8 idedisk_dump_status (ide_drive_t *drive, const char *msg, u8 stat) ...@@ -901,8 +905,8 @@ static u8 idedisk_dump_status (ide_drive_t *drive, const char *msg, u8 stat)
} }
} }
if (HWGROUP(drive) && HWGROUP(drive)->rq) if (HWGROUP(drive) && HWGROUP(drive)->rq)
printk(", sector=%ld", printk(", sector=%llu",
HWGROUP(drive)->rq->sector); (unsigned long long)HWGROUP(drive)->rq->sector);
} }
} }
#endif /* FANCY_STATUS_DUMPS */ #endif /* FANCY_STATUS_DUMPS */
......
...@@ -1268,7 +1268,7 @@ static ide_startstop_t idefloppy_do_request (ide_drive_t *drive, struct request ...@@ -1268,7 +1268,7 @@ static ide_startstop_t idefloppy_do_request (ide_drive_t *drive, struct request
return ide_stopped; return ide_stopped;
} }
if (rq->flags & REQ_CMD) { if (rq->flags & REQ_CMD) {
if ((rq->sector % floppy->bs_factor) || if (((long)rq->sector % floppy->bs_factor) ||
(rq->nr_sectors % floppy->bs_factor)) { (rq->nr_sectors % floppy->bs_factor)) {
printk("%s: unsupported r/w request size\n", printk("%s: unsupported r/w request size\n",
drive->name); drive->name);
......
...@@ -286,8 +286,8 @@ u8 taskfile_dump_status (ide_drive_t *drive, const char *msg, u8 stat) ...@@ -286,8 +286,8 @@ u8 taskfile_dump_status (ide_drive_t *drive, const char *msg, u8 stat)
} }
} }
if (HWGROUP(drive)->rq) if (HWGROUP(drive)->rq)
printk(", sector=%lu", printk(", sector=%llu",
HWGROUP(drive)->rq->sector); (unsigned long long)HWGROUP(drive)->rq->sector);
} }
media_out: media_out:
#endif /* FANCY_STATUS_DUMPS */ #endif /* FANCY_STATUS_DUMPS */
......
...@@ -590,7 +590,7 @@ u8 ide_dump_status (ide_drive_t *drive, const char *msg, u8 stat) ...@@ -590,7 +590,7 @@ u8 ide_dump_status (ide_drive_t *drive, const char *msg, u8 stat)
} }
} }
if (HWGROUP(drive) && HWGROUP(drive)->rq) if (HWGROUP(drive) && HWGROUP(drive)->rq)
printk(", sector=%ld", HWGROUP(drive)->rq->sector); printk(", sector=%llu", (unsigned long long)HWGROUP(drive)->rq->sector);
} }
} }
#endif /* FANCY_STATUS_DUMPS */ #endif /* FANCY_STATUS_DUMPS */
...@@ -3270,7 +3270,7 @@ static int default_flushcache (ide_drive_t *drive) ...@@ -3270,7 +3270,7 @@ static int default_flushcache (ide_drive_t *drive)
return 0; return 0;
} }
static ide_startstop_t default_do_request (ide_drive_t *drive, struct request *rq, unsigned long block) static ide_startstop_t default_do_request (ide_drive_t *drive, struct request *rq, sector_t block)
{ {
ide_end_request(drive, 0, 0); ide_end_request(drive, 0, 0);
return ide_stopped; return ide_stopped;
......
...@@ -487,7 +487,7 @@ static ide_startstop_t idescsi_issue_pc (ide_drive_t *drive, idescsi_pc_t *pc) ...@@ -487,7 +487,7 @@ static ide_startstop_t idescsi_issue_pc (ide_drive_t *drive, idescsi_pc_t *pc)
/* /*
* idescsi_do_request is our request handling function. * idescsi_do_request is our request handling function.
*/ */
static ide_startstop_t idescsi_do_request (ide_drive_t *drive, struct request *rq, unsigned long block) static ide_startstop_t idescsi_do_request (ide_drive_t *drive, struct request *rq, sector_t block)
{ {
#if IDESCSI_DEBUG_LOG #if IDESCSI_DEBUG_LOG
printk (KERN_INFO "rq_status: %d, rq_dev: %u, cmd: %d, errors: %d\n",rq->rq_status,(unsigned int) rq->rq_dev,rq->cmd,rq->errors); printk (KERN_INFO "rq_status: %d, rq_dev: %u, cmd: %d, errors: %d\n",rq->rq_status,(unsigned int) rq->rq_dev,rq->cmd,rq->errors);
......
...@@ -471,13 +471,12 @@ int rescan_partitions(struct gendisk *disk, struct block_device *bdev) ...@@ -471,13 +471,12 @@ int rescan_partitions(struct gendisk *disk, struct block_device *bdev)
return res; return res;
} }
unsigned char *read_dev_sector(struct block_device *bdev, unsigned long n, Sector *p) unsigned char *read_dev_sector(struct block_device *bdev, sector_t n, Sector *p)
{ {
struct address_space *mapping = bdev->bd_inode->i_mapping; struct address_space *mapping = bdev->bd_inode->i_mapping;
int sect = PAGE_CACHE_SIZE / 512;
struct page *page; struct page *page;
page = read_cache_page(mapping, n/sect, page = read_cache_page(mapping, (pgoff_t)(n >> (PAGE_CACHE_SHIFT-9)),
(filler_t *)mapping->a_ops->readpage, NULL); (filler_t *)mapping->a_ops->readpage, NULL);
if (!IS_ERR(page)) { if (!IS_ERR(page)) {
wait_on_page_locked(page); wait_on_page_locked(page);
...@@ -486,7 +485,7 @@ unsigned char *read_dev_sector(struct block_device *bdev, unsigned long n, Secto ...@@ -486,7 +485,7 @@ unsigned char *read_dev_sector(struct block_device *bdev, unsigned long n, Secto
if (PageError(page)) if (PageError(page))
goto fail; goto fail;
p->v = page; p->v = page;
return (unsigned char *)page_address(page) + 512 * (n % sect); return (unsigned char *)page_address(page) + ((n & ((1 << (PAGE_CACHE_SHIFT - 9)) - 1)) << 9);
fail: fail:
page_cache_release(page); page_cache_release(page);
} }
......
...@@ -5,14 +5,13 @@ ...@@ -5,14 +5,13 @@
* add_gd_partition adds a partitions details to the devices partition * add_gd_partition adds a partitions details to the devices partition
* description. * description.
*/ */
enum { MAX_PART = 256 }; enum { MAX_PART = 256 };
struct parsed_partitions { struct parsed_partitions {
char name[40]; char name[40];
struct { struct {
unsigned long from; sector_t from;
unsigned long size; sector_t size;
int flags; int flags;
} parts[MAX_PART]; } parts[MAX_PART];
int next; int next;
...@@ -20,7 +19,7 @@ struct parsed_partitions { ...@@ -20,7 +19,7 @@ struct parsed_partitions {
}; };
static inline void static inline void
put_partition(struct parsed_partitions *p, int n, int from, int size) put_partition(struct parsed_partitions *p, int n, sector_t from, sector_t size)
{ {
if (n < p->limit) { if (n < p->limit) {
p->parts[n].from = from; p->parts[n].from = from;
......
...@@ -37,7 +37,7 @@ struct request { ...@@ -37,7 +37,7 @@ struct request {
int errors; int errors;
sector_t sector; sector_t sector;
unsigned long nr_sectors; unsigned long nr_sectors;
unsigned long hard_sector; /* the hard_* are block layer sector_t hard_sector; /* the hard_* are block layer
* internals, no driver should * internals, no driver should
* touch them * touch them
*/ */
...@@ -394,13 +394,29 @@ extern inline unsigned int block_size(struct block_device *bdev) ...@@ -394,13 +394,29 @@ extern inline unsigned int block_size(struct block_device *bdev)
typedef struct {struct page *v;} Sector; typedef struct {struct page *v;} Sector;
unsigned char *read_dev_sector(struct block_device *, unsigned long, Sector *); unsigned char *read_dev_sector(struct block_device *, sector_t, Sector *);
static inline void put_dev_sector(Sector p) static inline void put_dev_sector(Sector p)
{ {
page_cache_release(p.v); page_cache_release(p.v);
} }
#ifdef CONFIG_LBD
# include <asm/div64.h>
# define sector_div(a, b) do_div(a, b)
#else
# define sector_div(n, b)( \
{ \
int _res; \
_res = (n) % (b); \
(n) /= (b); \
_res; \
} \
)
#endif
extern atomic_t nr_iowait_tasks; extern atomic_t nr_iowait_tasks;
void io_schedule(void); void io_schedule(void);
void io_schedule_timeout(long timeout); void io_schedule_timeout(long timeout);
......
...@@ -59,8 +59,8 @@ struct partition { ...@@ -59,8 +59,8 @@ struct partition {
# include <linux/devfs_fs_kernel.h> # include <linux/devfs_fs_kernel.h>
struct hd_struct { struct hd_struct {
unsigned long start_sect; sector_t start_sect;
unsigned long nr_sects; sector_t nr_sects;
devfs_handle_t de; /* primary (master) devfs entry */ devfs_handle_t de; /* primary (master) devfs entry */
struct device hd_driverfs_dev; /* support driverfs hiearchy */ struct device hd_driverfs_dev; /* support driverfs hiearchy */
}; };
...@@ -95,7 +95,7 @@ extern void add_disk(struct gendisk *disk); ...@@ -95,7 +95,7 @@ extern void add_disk(struct gendisk *disk);
extern void del_gendisk(struct gendisk *gp); extern void del_gendisk(struct gendisk *gp);
extern void unlink_gendisk(struct gendisk *gp); extern void unlink_gendisk(struct gendisk *gp);
extern struct gendisk *get_gendisk(dev_t dev, int *part); extern struct gendisk *get_gendisk(dev_t dev, int *part);
static inline unsigned long get_start_sect(struct block_device *bdev) static inline sector_t get_start_sect(struct block_device *bdev)
{ {
return bdev->bd_offset; return bdev->bd_offset;
} }
......
...@@ -1183,7 +1183,7 @@ typedef struct ide_driver_s { ...@@ -1183,7 +1183,7 @@ typedef struct ide_driver_s {
int (*suspend)(ide_drive_t *); int (*suspend)(ide_drive_t *);
int (*resume)(ide_drive_t *); int (*resume)(ide_drive_t *);
int (*flushcache)(ide_drive_t *); int (*flushcache)(ide_drive_t *);
ide_startstop_t (*do_request)(ide_drive_t *, struct request *, unsigned long); ide_startstop_t (*do_request)(ide_drive_t *, struct request *, sector_t);
int (*end_request)(ide_drive_t *, int, int); int (*end_request)(ide_drive_t *, int, int);
u8 (*sense)(ide_drive_t *, const char *, u8); u8 (*sense)(ide_drive_t *, const char *, u8);
ide_startstop_t (*error)(ide_drive_t *, const char *, u8); ide_startstop_t (*error)(ide_drive_t *, const char *, u8);
......
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