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| author | Kay Sievers <kay.sievers@vrfy.org> | 2010-11-11 09:58:57 +0100 |
|---|---|---|
| committer | Jens Axboe <jaxboe@fusionio.com> | 2010-11-11 09:58:57 +0100 |
| commit | 34db1d595ef6f183fbc1e42cda45a3dfa0035258 (patch) | |
| tree | 1fd9131f685dadd249c8bbb10c0c91eb6dc08a35 | |
| parent | 2b9408a45978dcda77407859148deeccf403c372 (diff) | |
| download | blackbird-op-linux-34db1d595ef6f183fbc1e42cda45a3dfa0035258.tar.gz blackbird-op-linux-34db1d595ef6f183fbc1e42cda45a3dfa0035258.zip | |
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: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
| -rw-r--r-- | fs/partitions/check.c | 9 |
1 files changed, 9 insertions, 0 deletions
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, |
