#include <linux/init.h>
#include <linux/module.h>
#include <linux/fs.h>
+#include <linux/slab.h>
#include <linux/kmod.h>
#include <linux/ctype.h>
#include <linux/genhd.h>
return sprintf(buf, "%llu\n", (unsigned long long)p->alignment_offset);
}
+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);
+}
+
ssize_t part_stat_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
static DEVICE_ATTR(start, S_IRUGO, part_start_show, NULL);
static DEVICE_ATTR(size, S_IRUGO, part_size_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);
static DEVICE_ATTR(stat, S_IRUGO, part_stat_show, NULL);
static DEVICE_ATTR(inflight, S_IRUGO, part_inflight_show, NULL);
#ifdef CONFIG_FAIL_MAKE_REQUEST
&dev_attr_start.attr,
&dev_attr_size.attr,
&dev_attr_alignment_offset.attr,
+ &dev_attr_discard_alignment.attr,
&dev_attr_stat.attr,
&dev_attr_inflight.attr,
#ifdef CONFIG_FAIL_MAKE_REQUEST
.attrs = part_attrs,
};
-static struct attribute_group *part_attr_groups[] = {
+static const struct attribute_group *part_attr_groups[] = {
&part_attr_group,
#ifdef CONFIG_BLK_DEV_IO_TRACE
&blk_trace_attr_group,
pdev = part_to_dev(p);
p->start_sect = start;
- p->alignment_offset = queue_sector_alignment_offset(disk->queue, 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);
}
if (from + size > get_capacity(disk)) {
- struct block_device_operations *bdops = disk->fops;
+ const struct block_device_operations *bdops = disk->fops;
unsigned long long capacity;
printk(KERN_WARNING