VServer 1.9.2 (patch-2.6.8.1-vs1.9.2.diff)

[linux-2.6.git] / drivers / block / genhd.c

diff --git a/drivers/block/genhd.c b/drivers/block/genhd.c
index 2c84953..e82caa2 100644 (file)
--- a/drivers/block/genhd.c
+++ b/drivers/block/genhd.c
@@ -90,7 +90,7 @@ int register_blkdev(unsigned int major, const char *name)
 
        p->major = major;
        strlcpy(p->name, name, sizeof(p->name));
-       p->next = 0;
+       p->next = NULL;
        index = major_to_index(major);
 
        spin_lock_irqsave(&major_names_lock, flags);
@@ -352,6 +352,12 @@ static ssize_t disk_range_read(struct gendisk * disk, char *page)
 {
        return sprintf(page, "%d\n", disk->minors);
 }
+static ssize_t disk_removable_read(struct gendisk * disk, char *page)
+{
+       return sprintf(page, "%d\n",
+                      (disk->flags & GENHD_FL_REMOVABLE ? 1 : 0));
+
+}
 static ssize_t disk_size_read(struct gendisk * disk, char *page)
 {
        return sprintf(page, "%llu\n", (unsigned long long)get_capacity(disk));
@@ -384,6 +390,10 @@ static struct disk_attribute disk_attr_range = {
        .attr = {.name = "range", .mode = S_IRUGO },
        .show   = disk_range_read
 };
+static struct disk_attribute disk_attr_removable = {
+       .attr = {.name = "removable", .mode = S_IRUGO },
+       .show   = disk_removable_read
+};
 static struct disk_attribute disk_attr_size = {
        .attr = {.name = "size", .mode = S_IRUGO },
        .show   = disk_size_read
@@ -396,6 +406,7 @@ static struct disk_attribute disk_attr_stat = {
 static struct attribute * default_attrs[] = {
        &disk_attr_dev.attr,
        &disk_attr_range.attr,
+       &disk_attr_removable.attr,
        &disk_attr_size.attr,
        &disk_attr_stat.attr,
        NULL,