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path: root/drivers/s390/block/dasd_ioctl.c
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Diffstat (limited to 'drivers/s390/block/dasd_ioctl.c')
-rw-r--r--drivers/s390/block/dasd_ioctl.c38
1 files changed, 34 insertions, 4 deletions
diff --git a/drivers/s390/block/dasd_ioctl.c b/drivers/s390/block/dasd_ioctl.c
index 72261e4c516d..eb4e034378cd 100644
--- a/drivers/s390/block/dasd_ioctl.c
+++ b/drivers/s390/block/dasd_ioctl.c
@@ -239,7 +239,7 @@ dasd_ioctl_format(struct block_device *bdev, void __user *argp)
*/
static int dasd_ioctl_reset_profile(struct dasd_block *block)
{
- memset(&block->profile, 0, sizeof(struct dasd_profile_info_t));
+ dasd_profile_reset(&block->profile);
return 0;
}
@@ -248,10 +248,40 @@ static int dasd_ioctl_reset_profile(struct dasd_block *block)
*/
static int dasd_ioctl_read_profile(struct dasd_block *block, void __user *argp)
{
- if (dasd_profile_level == DASD_PROFILE_OFF)
+ struct dasd_profile_info_t *data;
+
+ data = kmalloc(sizeof(*data), GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+
+ spin_lock_bh(&block->profile.lock);
+ if (block->profile.data) {
+ data->dasd_io_reqs = block->profile.data->dasd_io_reqs;
+ data->dasd_io_sects = block->profile.data->dasd_io_sects;
+ memcpy(data->dasd_io_secs, block->profile.data->dasd_io_secs,
+ sizeof(data->dasd_io_secs));
+ memcpy(data->dasd_io_times, block->profile.data->dasd_io_times,
+ sizeof(data->dasd_io_times));
+ memcpy(data->dasd_io_timps, block->profile.data->dasd_io_timps,
+ sizeof(data->dasd_io_timps));
+ memcpy(data->dasd_io_time1, block->profile.data->dasd_io_time1,
+ sizeof(data->dasd_io_time1));
+ memcpy(data->dasd_io_time2, block->profile.data->dasd_io_time2,
+ sizeof(data->dasd_io_time2));
+ memcpy(data->dasd_io_time2ps,
+ block->profile.data->dasd_io_time2ps,
+ sizeof(data->dasd_io_time2ps));
+ memcpy(data->dasd_io_time3, block->profile.data->dasd_io_time3,
+ sizeof(data->dasd_io_time3));
+ memcpy(data->dasd_io_nr_req,
+ block->profile.data->dasd_io_nr_req,
+ sizeof(data->dasd_io_nr_req));
+ spin_unlock_bh(&block->profile.lock);
+ } else {
+ spin_unlock_bh(&block->profile.lock);
return -EIO;
- if (copy_to_user(argp, &block->profile,
- sizeof(struct dasd_profile_info_t)))
+ }
+ if (copy_to_user(argp, data, sizeof(*data)))
return -EFAULT;
return 0;
}