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yaml
---
r: 249057
b: refs/heads/master
c: 273083b
h: refs/heads/master
i:
  249055: 4344304
v: v3
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K. Y. Srinivasan authored and Greg Kroah-Hartman committed Apr 20, 2011
1 parent bd85495 commit e0a0a8f
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Showing 2 changed files with 82 additions and 82 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: a55af7bee859e183c059415b608b6d72e5cd7426
refs/heads/master: 273083bef5a1204b6ce67eb8e23682a2d3cd2dd9
162 changes: 81 additions & 81 deletions trunk/drivers/staging/hv/blkvsc_drv.c
Original file line number Diff line number Diff line change
Expand Up @@ -275,14 +275,94 @@ static int blkvsc_open(struct block_device *bdev, fmode_t mode)
return 0;
}


static int blkvsc_getgeo(struct block_device *bd, struct hd_geometry *hg)
{
sector_t total_sectors = get_capacity(bd->bd_disk);
sector_t cylinder_times_heads = 0;
sector_t temp = 0;

int sectors_per_track = 0;
int heads = 0;
int cylinders = 0;
int rem = 0;

if (total_sectors > (65535 * 16 * 255))
total_sectors = (65535 * 16 * 255);

if (total_sectors >= (65535 * 16 * 63)) {
sectors_per_track = 255;
heads = 16;

cylinder_times_heads = total_sectors;
/* sector_div stores the quotient in cylinder_times_heads */
rem = sector_div(cylinder_times_heads, sectors_per_track);
} else {
sectors_per_track = 17;

cylinder_times_heads = total_sectors;
/* sector_div stores the quotient in cylinder_times_heads */
rem = sector_div(cylinder_times_heads, sectors_per_track);

temp = cylinder_times_heads + 1023;
/* sector_div stores the quotient in temp */
rem = sector_div(temp, 1024);

heads = temp;

if (heads < 4)
heads = 4;


if (cylinder_times_heads >= (heads * 1024) || (heads > 16)) {
sectors_per_track = 31;
heads = 16;

cylinder_times_heads = total_sectors;
/*
* sector_div stores the quotient in
* cylinder_times_heads
*/
rem = sector_div(cylinder_times_heads,
sectors_per_track);
}

if (cylinder_times_heads >= (heads * 1024)) {
sectors_per_track = 63;
heads = 16;

cylinder_times_heads = total_sectors;
/*
* sector_div stores the quotient in
* cylinder_times_heads
*/
rem = sector_div(cylinder_times_heads,
sectors_per_track);
}
}

temp = cylinder_times_heads;
/* sector_div stores the quotient in temp */
rem = sector_div(temp, heads);
cylinders = temp;

hg->heads = heads;
hg->sectors = sectors_per_track;
hg->cylinders = cylinders;

DPRINT_INFO(BLKVSC_DRV, "CHS (%d, %d, %d)", cylinders, heads,
sectors_per_track);

return 0;
}

/* Static decl */
static int blkvsc_probe(struct device *dev);
static int blkvsc_remove(struct device *device);
static void blkvsc_shutdown(struct device *device);

static int blkvsc_release(struct gendisk *disk, fmode_t mode);
static int blkvsc_revalidate_disk(struct gendisk *gd);
static int blkvsc_getgeo(struct block_device *bd, struct hd_geometry *hg);
static int blkvsc_ioctl(struct block_device *bd, fmode_t mode,
unsigned cmd, unsigned long argument);
static void blkvsc_request(struct request_queue *queue);
Expand Down Expand Up @@ -1427,86 +1507,6 @@ static int blkvsc_revalidate_disk(struct gendisk *gd)
return 0;
}

static int blkvsc_getgeo(struct block_device *bd, struct hd_geometry *hg)
{
sector_t total_sectors = get_capacity(bd->bd_disk);
sector_t cylinder_times_heads = 0;
sector_t temp = 0;

int sectors_per_track = 0;
int heads = 0;
int cylinders = 0;
int rem = 0;

if (total_sectors > (65535 * 16 * 255))
total_sectors = (65535 * 16 * 255);

if (total_sectors >= (65535 * 16 * 63)) {
sectors_per_track = 255;
heads = 16;

cylinder_times_heads = total_sectors;
/* sector_div stores the quotient in cylinder_times_heads */
rem = sector_div(cylinder_times_heads, sectors_per_track);
} else {
sectors_per_track = 17;

cylinder_times_heads = total_sectors;
/* sector_div stores the quotient in cylinder_times_heads */
rem = sector_div(cylinder_times_heads, sectors_per_track);

temp = cylinder_times_heads + 1023;
/* sector_div stores the quotient in temp */
rem = sector_div(temp, 1024);

heads = temp;

if (heads < 4)
heads = 4;


if (cylinder_times_heads >= (heads * 1024) || (heads > 16)) {
sectors_per_track = 31;
heads = 16;

cylinder_times_heads = total_sectors;
/*
* sector_div stores the quotient in
* cylinder_times_heads
*/
rem = sector_div(cylinder_times_heads,
sectors_per_track);
}

if (cylinder_times_heads >= (heads * 1024)) {
sectors_per_track = 63;
heads = 16;

cylinder_times_heads = total_sectors;
/*
* sector_div stores the quotient in
* cylinder_times_heads
*/
rem = sector_div(cylinder_times_heads,
sectors_per_track);
}
}

temp = cylinder_times_heads;
/* sector_div stores the quotient in temp */
rem = sector_div(temp, heads);
cylinders = temp;

hg->heads = heads;
hg->sectors = sectors_per_track;
hg->cylinders = cylinders;

DPRINT_INFO(BLKVSC_DRV, "CHS (%d, %d, %d)", cylinders, heads,
sectors_per_track);

return 0;
}

static int blkvsc_ioctl(struct block_device *bd, fmode_t mode,
unsigned cmd, unsigned long argument)
{
Expand Down

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