ide-floppy: use drive->capacity64 for caching current capacity

* Use drive->capacity64 for caching current capacity.

* Switch ide_floppy_capacity() to use drive->capacity64.

* Call set_capacity() in idefloppy_open() and ide_floppy_probe()
  instead of ide_floppy_get_capacity().

There should be no functional changes caused by this patch.

Cc: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: 's avatarBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
parent 8f29cd9f
......@@ -445,7 +445,9 @@ static int ide_floppy_get_flexible_disk_page(ide_drive_t *drive)
drive->name, lba_capacity, capacity);
floppy->blocks = floppy->block_size ?
capacity / floppy->block_size : 0;
drive->capacity64 = floppy->blocks * floppy->bs_factor;
}
return 0;
}
......@@ -466,7 +468,7 @@ static int ide_floppy_get_capacity(ide_drive_t *drive)
drive->bios_head = drive->bios_sect = 0;
floppy->blocks = 0;
floppy->bs_factor = 1;
set_capacity(floppy->disk, 0);
drive->capacity64 = 0;
ide_floppy_create_read_capacity_cmd(&pc);
if (ide_queue_pc_tail(drive, disk, &pc)) {
......@@ -523,6 +525,8 @@ static int ide_floppy_get_capacity(ide_drive_t *drive)
"non 512 bytes block size not "
"fully supported\n",
drive->name);
drive->capacity64 =
floppy->blocks * floppy->bs_factor;
rc = 0;
}
break;
......@@ -547,17 +551,12 @@ static int ide_floppy_get_capacity(ide_drive_t *drive)
if (!(drive->atapi_flags & IDE_AFLAG_CLIK_DRIVE))
(void) ide_floppy_get_flexible_disk_page(drive);
set_capacity(disk, floppy->blocks * floppy->bs_factor);
return rc;
}
sector_t ide_floppy_capacity(ide_drive_t *drive)
{
idefloppy_floppy_t *floppy = drive->driver_data;
unsigned long capacity = floppy->blocks * floppy->bs_factor;
return capacity;
return drive->capacity64;
}
static void idefloppy_setup(ide_drive_t *drive)
......@@ -671,14 +670,16 @@ static int idefloppy_open(struct inode *inode, struct file *filp)
if (ide_do_test_unit_ready(drive, disk))
ide_do_start_stop(drive, disk, 1);
if (ide_floppy_get_capacity(drive)
&& (filp->f_flags & O_NDELAY) == 0
ret = ide_floppy_get_capacity(drive);
set_capacity(disk, ide_floppy_capacity(drive));
if (ret && (filp->f_flags & O_NDELAY) == 0) {
/*
* Allow O_NDELAY to open a drive without a disk, or with an
* unreadable disk, so that we can get the format capacity
* of the drive or begin the format - Sam
*/
) {
ret = -EIO;
goto out_put_floppy;
}
......@@ -811,6 +812,8 @@ static int ide_floppy_probe(ide_drive_t *drive)
idefloppy_setup(drive);
set_capacity(g, ide_floppy_capacity(drive));
g->minors = 1 << PARTN_BITS;
g->driverfs_dev = &drive->gendev;
if (drive->dev_flags & IDE_DFLAG_REMOVABLE)
......
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