diff options
| author | Tao Ma <boyu.mt@taobao.com> | 2011-05-07 03:30:02 +0200 |
|---|---|---|
| committer | Jens Axboe <jaxboe@fusionio.com> | 2011-05-07 03:30:02 +0200 |
| commit | 23ceb5b7719e9276d4fa72a3ecf94dd396755276 (patch) | |
| tree | f0613021d10b9e8464a26a78fcabf48e0f0b715b | |
| parent | blkdev: Do not return -EOPNOTSUPP if discard is supported (diff) | |
| download | linux-23ceb5b7719e9276d4fa72a3ecf94dd396755276.tar.xz linux-23ceb5b7719e9276d4fa72a3ecf94dd396755276.zip | |
block: Remove extra discard_alignment from hd_struct.
Currently, hd_struct.discard_alignment is only used when we
show /sys/block/sdx/sdx/discard_alignment. So remove it and
calculate when it is asked to show.
Signed-off-by: Tao Ma <boyu.mt@taobao.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
| -rw-r--r-- | fs/partitions/check.c | 9 | ||||
| -rw-r--r-- | include/linux/genhd.h | 1 |
2 files changed, 6 insertions, 4 deletions
diff --git a/fs/partitions/check.c b/fs/partitions/check.c index d545e97d99c3..b7e16bccd5e5 100644 --- a/fs/partitions/check.c +++ b/fs/partitions/check.c @@ -255,7 +255,12 @@ ssize_t part_discard_alignment_show(struct device *dev, struct device_attribute *attr, char *buf) { struct hd_struct *p = dev_to_part(dev); - return sprintf(buf, "%u\n", p->discard_alignment); + struct gendisk *disk = dev_to_disk(dev); + + return sprintf(buf, "%u\n", + (unsigned long long)queue_limit_discard_alignment( + &disk->queue->limits, + p->start_sect)); } ssize_t part_stat_show(struct device *dev, @@ -449,8 +454,6 @@ struct hd_struct *add_partition(struct gendisk *disk, int partno, 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; p->partno = partno; p->policy = get_disk_ro(disk); diff --git a/include/linux/genhd.h b/include/linux/genhd.h index 300d7582006e..b78956b3c2e7 100644 --- a/include/linux/genhd.h +++ b/include/linux/genhd.h @@ -100,7 +100,6 @@ struct hd_struct { sector_t start_sect; sector_t nr_sects; sector_t alignment_offset; - unsigned int discard_alignment; struct device __dev; struct kobject *holder_dir; int policy, partno; |