[PATCH] Add block_device_operations.getgeo block device method

[net-next-2.6.git] / drivers / ide / ide.c

diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c
index 73ca8f73917d9172bba616311437ccb3de9966e9..b069b13b75a760ec58dc8e6c6fe7dbcbdc844452 100644 (file)
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@@ -803,6 +803,7 @@ found:
        hwif->irq = hw->irq;
        hwif->noprobe = 0;
        hwif->chipset = hw->chipset;
+       hwif->gendev.parent = hw->dev;
 
        if (!initializing) {
                probe_hwif_init_with_fixup(hwif, fixup);
@@ -864,9 +865,8 @@ static int __ide_add_setting(ide_drive_t *drive, const char *name, int rw, int r
        down(&ide_setting_sem);
        while ((*p) && strcmp((*p)->name, name) < 0)
                p = &((*p)->next);
-       if ((setting = kmalloc(sizeof(*setting), GFP_KERNEL)) == NULL)
+       if ((setting = kzalloc(sizeof(*setting), GFP_KERNEL)) == NULL)
                goto abort;
-       memset(setting, 0, sizeof(*setting));
        if ((setting->name = kmalloc(strlen(name) + 1, GFP_KERNEL)) == NULL)
                goto abort;
        strcpy(setting->name, name);
@@ -889,8 +889,7 @@ static int __ide_add_setting(ide_drive_t *drive, const char *name, int rw, int r
        return 0;
 abort:
        up(&ide_setting_sem);
-       if (setting)
-               kfree(setting);
+       kfree(setting);
        return -1;
 }
 
@@ -1279,19 +1278,6 @@ int generic_ide_ioctl(ide_drive_t *drive, struct file *file, struct block_device
        up(&ide_setting_sem);
 
        switch (cmd) {
-               case HDIO_GETGEO:
-               {
-                       struct hd_geometry geom;
-                       if (!p || (drive->media != ide_disk && drive->media != ide_floppy)) return -EINVAL;
-                       geom.heads = drive->bios_head;
-                       geom.sectors = drive->bios_sect;
-                       geom.cylinders = (u16)drive->bios_cyl; /* truncate */
-                       geom.start = get_start_sect(bdev);
-                       if (copy_to_user(p, &geom, sizeof(struct hd_geometry)))
-                               return -EFAULT;
-                       return 0;
-               }
-
                case HDIO_OBSOLETE_IDENTITY:
                case HDIO_GET_IDENTITY:
                        if (bdev != bdev->bd_contains)
@@ -1905,9 +1891,69 @@ static int ide_bus_match(struct device *dev, struct device_driver *drv)
        return 1;
 }
 
+static char *media_string(ide_drive_t *drive)
+{
+       switch (drive->media) {
+       case ide_disk:
+               return "disk";
+       case ide_cdrom:
+               return "cdrom";
+       case ide_tape:
+               return "tape";
+       case ide_floppy:
+               return "floppy";
+       default:
+               return "UNKNOWN";
+       }
+}
+
+static ssize_t media_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+       ide_drive_t *drive = to_ide_device(dev);
+       return sprintf(buf, "%s\n", media_string(drive));
+}
+
+static ssize_t drivename_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+       ide_drive_t *drive = to_ide_device(dev);
+       return sprintf(buf, "%s\n", drive->name);
+}
+
+static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+       ide_drive_t *drive = to_ide_device(dev);
+       return sprintf(buf, "ide:m-%s\n", media_string(drive));
+}
+
+static struct device_attribute ide_dev_attrs[] = {
+       __ATTR_RO(media),
+       __ATTR_RO(drivename),
+       __ATTR_RO(modalias),
+       __ATTR_NULL
+};
+
+static int ide_uevent(struct device *dev, char **envp, int num_envp,
+                     char *buffer, int buffer_size)
+{
+       ide_drive_t *drive = to_ide_device(dev);
+       int i = 0;
+       int length = 0;
+
+       add_uevent_var(envp, num_envp, &i, buffer, buffer_size, &length,
+                      "MEDIA=%s", media_string(drive));
+       add_uevent_var(envp, num_envp, &i, buffer, buffer_size, &length,
+                      "DRIVENAME=%s", drive->name);
+       add_uevent_var(envp, num_envp, &i, buffer, buffer_size, &length,
+                      "MODALIAS=ide:m-%s", media_string(drive));
+       envp[i] = NULL;
+       return 0;
+}
+
 struct bus_type ide_bus_type = {
        .name           = "ide",
        .match          = ide_bus_match,
+       .uevent         = ide_uevent,
+       .dev_attrs      = ide_dev_attrs,
        .suspend        = generic_ide_suspend,
        .resume         = generic_ide_resume,
 };