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authorDavid S. Miller <davem@davemloft.net>2008-07-18 11:39:39 +0200
committerDavid S. Miller <davem@davemloft.net>2008-07-18 11:39:39 +0200
commit49997d75152b3d23c53b0fa730599f2f74c92c65 (patch)
tree46e93126170d02cfec9505172e545732c1b69656 /block/genhd.c
parentpkt_sched: Make default qdisc nonshared-multiqueue safe. (diff)
parentMerge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/gi... (diff)
downloadlinux-49997d75152b3d23c53b0fa730599f2f74c92c65.tar.xz
linux-49997d75152b3d23c53b0fa730599f2f74c92c65.zip
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts: Documentation/powerpc/booting-without-of.txt drivers/atm/Makefile drivers/net/fs_enet/fs_enet-main.c drivers/pci/pci-acpi.c net/8021q/vlan.c net/iucv/iucv.c
Diffstat (limited to 'block/genhd.c')
-rw-r--r--block/genhd.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/block/genhd.c b/block/genhd.c
index b922d4801c87..9074f384b097 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -189,6 +189,7 @@ void add_disk(struct gendisk *disk)
disk->minors, NULL, exact_match, exact_lock, disk);
register_disk(disk);
blk_register_queue(disk);
+ blk_register_filter(disk);
bdi = &disk->queue->backing_dev_info;
bdi_register_dev(bdi, MKDEV(disk->major, disk->first_minor));
@@ -200,6 +201,7 @@ EXPORT_SYMBOL(del_gendisk); /* in partitions/check.c */
void unlink_gendisk(struct gendisk *disk)
{
+ blk_unregister_filter(disk);
sysfs_remove_link(&disk->dev.kobj, "bdi");
bdi_unregister(&disk->queue->backing_dev_info);
blk_unregister_queue(disk);
@@ -400,6 +402,14 @@ static ssize_t disk_removable_show(struct device *dev,
(disk->flags & GENHD_FL_REMOVABLE ? 1 : 0));
}
+static ssize_t disk_ro_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct gendisk *disk = dev_to_disk(dev);
+
+ return sprintf(buf, "%d\n", disk->policy ? 1 : 0);
+}
+
static ssize_t disk_size_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
@@ -472,6 +482,7 @@ static ssize_t disk_fail_store(struct device *dev,
static DEVICE_ATTR(range, S_IRUGO, disk_range_show, NULL);
static DEVICE_ATTR(removable, S_IRUGO, disk_removable_show, NULL);
+static DEVICE_ATTR(ro, S_IRUGO, disk_ro_show, NULL);
static DEVICE_ATTR(size, S_IRUGO, disk_size_show, NULL);
static DEVICE_ATTR(capability, S_IRUGO, disk_capability_show, NULL);
static DEVICE_ATTR(stat, S_IRUGO, disk_stat_show, NULL);
@@ -483,6 +494,7 @@ static struct device_attribute dev_attr_fail =
static struct attribute *disk_attrs[] = {
&dev_attr_range.attr,
&dev_attr_removable.attr,
+ &dev_attr_ro.attr,
&dev_attr_size.attr,
&dev_attr_capability.attr,
&dev_attr_stat.attr,