@@ -199,7 +199,10 @@ static ssize_t part_alignment_offset_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct hd_struct *p = dev_to_part(dev);
- return sprintf(buf, "%llu\n", (unsigned long long)p->alignment_offset);
+
+ return sprintf(buf, "%u\n",
+ queue_limit_alignment_offset(&part_to_disk(p)->queue->limits,
+ p->start_sect));
}
static ssize_t part_discard_alignment_show(struct device *dev,
@@ -397,8 +400,6 @@ static struct hd_struct *add_partition(struct gendisk *disk, int partno,
pdev = part_to_dev(p);
p->start_sect = start;
- p->alignment_offset =
- queue_limit_alignment_offset(&disk->queue->limits, start);
p->discard_alignment =
queue_limit_discard_alignment(&disk->queue->limits, start);
p->nr_sects = len;
@@ -1456,10 +1456,9 @@ static inline int bdev_alignment_offset(struct block_device *bdev)
if (q->limits.misaligned)
return -1;
-
if (bdev != bdev->bd_contains)
- return bdev->bd_part->alignment_offset;
-
+ return queue_limit_alignment_offset(&q->limits,
+ bdev->bd_part->start_sect);
return q->limits.alignment_offset;
}
@@ -65,7 +65,6 @@ struct hd_struct {
struct disk_stats __percpu *dkstats;
struct percpu_ref ref;
- sector_t alignment_offset;
unsigned int discard_alignment;
struct device __dev;
struct kobject *holder_dir;
The alignment offset is only used in slow path callers, so just calculate it on the fly. Signed-off-by: Christoph Hellwig <hch@lst.de> --- block/partitions/core.c | 7 ++++--- include/linux/blkdev.h | 5 ++--- include/linux/genhd.h | 1 - 3 files changed, 6 insertions(+), 7 deletions(-)