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Commit 34db1d59 authored by Kay Sievers's avatar Kay Sievers Committed by Jens Axboe
Browse files

block: export 'ro' sysfs attribute for partitions 



We already export 'ro' for the disk. This adds the same attribute
for partitions.

Cc: Karel Zak <kzak@redhat.com>
Signed-off-by: default avatarKay Sievers <kay.sievers@vrfy.org>
Signed-off-by: default avatarJens Axboe <jaxboe@fusionio.com>
parent 2b9408a4

fs/partitions/check.c

+9 −0
Original line number Diff line number Diff line
@@ -237,6 +237,13 @@ ssize_t part_size_show(struct device *dev, 
	return sprintf(buf, "%llu\n",(unsigned long long)p->nr_sects);

}



ssize_t part_ro_show(struct device *dev,

		       struct device_attribute *attr, char *buf)

{

	struct hd_struct *p = dev_to_part(dev);

	return sprintf(buf, "%d\n", p->policy ? 1 : 0);

}



ssize_t part_alignment_offset_show(struct device *dev,

				   struct device_attribute *attr, char *buf)

{
@@ -312,6 +319,7 @@ ssize_t part_fail_store(struct device *dev, 
static DEVICE_ATTR(partition, S_IRUGO, part_partition_show, NULL);

static DEVICE_ATTR(start, S_IRUGO, part_start_show, NULL);

static DEVICE_ATTR(size, S_IRUGO, part_size_show, NULL);

static DEVICE_ATTR(ro, S_IRUGO, part_ro_show, NULL);

static DEVICE_ATTR(alignment_offset, S_IRUGO, part_alignment_offset_show, NULL);

static DEVICE_ATTR(discard_alignment, S_IRUGO, part_discard_alignment_show,

		   NULL);
@@ -326,6 +334,7 @@ static struct attribute *part_attrs[] = { 
	&dev_attr_partition.attr,

	&dev_attr_start.attr,

	&dev_attr_size.attr,

	&dev_attr_ro.attr,

	&dev_attr_alignment_offset.attr,

	&dev_attr_discard_alignment.attr,

	&dev_attr_stat.attr,