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path: root/drivers/block/cpqarray.c
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Diffstat (limited to 'drivers/block/cpqarray.c')
-rw-r--r--drivers/block/cpqarray.c36
1 files changed, 19 insertions, 17 deletions
diff --git a/drivers/block/cpqarray.c b/drivers/block/cpqarray.c
index 9bddb6874873..9f0664dd3800 100644
--- a/drivers/block/cpqarray.c
+++ b/drivers/block/cpqarray.c
@@ -160,6 +160,7 @@ static int sendcmd(
160static int ida_open(struct inode *inode, struct file *filep); 160static int ida_open(struct inode *inode, struct file *filep);
161static int ida_release(struct inode *inode, struct file *filep); 161static int ida_release(struct inode *inode, struct file *filep);
162static int ida_ioctl(struct inode *inode, struct file *filep, unsigned int cmd, unsigned long arg); 162static int ida_ioctl(struct inode *inode, struct file *filep, unsigned int cmd, unsigned long arg);
163static int ida_getgeo(struct block_device *bdev, struct hd_geometry *geo);
163static int ida_ctlr_ioctl(ctlr_info_t *h, int dsk, ida_ioctl_t *io); 164static int ida_ctlr_ioctl(ctlr_info_t *h, int dsk, ida_ioctl_t *io);
164 165
165static void do_ida_request(request_queue_t *q); 166static void do_ida_request(request_queue_t *q);
@@ -199,6 +200,7 @@ static struct block_device_operations ida_fops = {
199 .open = ida_open, 200 .open = ida_open,
200 .release = ida_release, 201 .release = ida_release,
201 .ioctl = ida_ioctl, 202 .ioctl = ida_ioctl,
203 .getgeo = ida_getgeo,
202 .revalidate_disk= ida_revalidate, 204 .revalidate_disk= ida_revalidate,
203}; 205};
204 206
@@ -1124,6 +1126,23 @@ static void ida_timer(unsigned long tdata)
1124 h->misc_tflags = 0; 1126 h->misc_tflags = 0;
1125} 1127}
1126 1128
1129static int ida_getgeo(struct block_device *bdev, struct hd_geometry *geo)
1130{
1131 drv_info_t *drv = get_drv(bdev->bd_disk);
1132
1133 if (drv->cylinders) {
1134 geo->heads = drv->heads;
1135 geo->sectors = drv->sectors;
1136 geo->cylinders = drv->cylinders;
1137 } else {
1138 geo->heads = 0xff;
1139 geo->sectors = 0x3f;
1140 geo->cylinders = drv->nr_blks / (0xff*0x3f);
1141 }
1142
1143 return 0;
1144}
1145
1127/* 1146/*
1128 * ida_ioctl does some miscellaneous stuff like reporting drive geometry, 1147 * ida_ioctl does some miscellaneous stuff like reporting drive geometry,
1129 * setting readahead and submitting commands from userspace to the controller. 1148 * setting readahead and submitting commands from userspace to the controller.
@@ -1133,27 +1152,10 @@ static int ida_ioctl(struct inode *inode, struct file *filep, unsigned int cmd,
1133 drv_info_t *drv = get_drv(inode->i_bdev->bd_disk); 1152 drv_info_t *drv = get_drv(inode->i_bdev->bd_disk);
1134 ctlr_info_t *host = get_host(inode->i_bdev->bd_disk); 1153 ctlr_info_t *host = get_host(inode->i_bdev->bd_disk);
1135 int error; 1154 int error;
1136 int diskinfo[4];
1137 struct hd_geometry __user *geo = (struct hd_geometry __user *)arg;
1138 ida_ioctl_t __user *io = (ida_ioctl_t __user *)arg; 1155 ida_ioctl_t __user *io = (ida_ioctl_t __user *)arg;
1139 ida_ioctl_t *my_io; 1156 ida_ioctl_t *my_io;
1140 1157
1141 switch(cmd) { 1158 switch(cmd) {
1142 case HDIO_GETGEO:
1143 if (drv->cylinders) {
1144 diskinfo[0] = drv->heads;
1145 diskinfo[1] = drv->sectors;
1146 diskinfo[2] = drv->cylinders;
1147 } else {
1148 diskinfo[0] = 0xff;
1149 diskinfo[1] = 0x3f;
1150 diskinfo[2] = drv->nr_blks / (0xff*0x3f);
1151 }
1152 put_user(diskinfo[0], &geo->heads);
1153 put_user(diskinfo[1], &geo->sectors);
1154 put_user(diskinfo[2], &geo->cylinders);
1155 put_user(get_start_sect(inode->i_bdev), &geo->start);
1156 return 0;
1157 case IDAGETDRVINFO: 1159 case IDAGETDRVINFO:
1158 if (copy_to_user(&io->c.drv, drv, sizeof(drv_info_t))) 1160 if (copy_to_user(&io->c.drv, drv, sizeof(drv_info_t)))
1159 return -EFAULT; 1161 return -EFAULT;