From: Kay Sievers Date: Thu, 11 Nov 2010 08:58:57 +0000 (+0100) Subject: block: export 'ro' sysfs attribute for partitions X-Git-Tag: v2.6.38-rc1~231^2~24 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=34db1d595ef6f183fbc1e42cda45a3dfa0035258;p=karo-tx-linux.git block: export 'ro' sysfs attribute for partitions We already export 'ro' for the disk. This adds the same attribute for partitions. Cc: Karel Zak Signed-off-by: Kay Sievers Signed-off-by: Jens Axboe --- diff --git a/fs/partitions/check.c b/fs/partitions/check.c index 79fbf3f390f0..861ae84fcee5 100644 --- a/fs/partitions/check.c +++ b/fs/partitions/check.c @@ -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,