On 03/04/2019 03:44 AM, Andy Shevchenko wrote:
> Switch to bitmap_zalloc() to show clearly what we are allocating.
> Besides that it returns pointer of bitmap type instead of opaque void *.
>
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
> ---
> drivers/target/target_core_user.c | 8 +++-----
> 1 file changed, 3 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/target/target_core_user.c b/drivers/target/target_core_user.c
> index 5831e0eecea1..c726c029affe 100644
> --- a/drivers/target/target_core_user.c
> +++ b/drivers/target/target_core_user.c
> @@ -1663,7 +1663,7 @@ static void tcmu_dev_kref_release(struct kref *kref)
> WARN_ON(!all_expired);
>
> tcmu_blocks_release(&udev->data_blocks, 0, udev->dbi_max + 1);
> - kfree(udev->data_bitmap);
> + bitmap_free(udev->data_bitmap);
> mutex_unlock(&udev->cmdr_lock);
>
> call_rcu(&dev->rcu_head, tcmu_dev_call_rcu);
> @@ -1870,9 +1870,7 @@ static int tcmu_configure_device(struct se_device *dev)
> info = &udev->uio_info;
>
> mutex_lock(&udev->cmdr_lock);
> - udev->data_bitmap = kcalloc(BITS_TO_LONGS(udev->max_blocks),
> - sizeof(unsigned long),
> - GFP_KERNEL);
> + udev->data_bitmap = bitmap_zalloc(udev->max_blocks, GFP_KERNEL);
> mutex_unlock(&udev->cmdr_lock);
> if (!udev->data_bitmap) {
> ret = -ENOMEM;
> @@ -1959,7 +1957,7 @@ static int tcmu_configure_device(struct se_device *dev)
> vfree(udev->mb_addr);
> udev->mb_addr = NULL;
> err_vzalloc:
> - kfree(udev->data_bitmap);
> + bitmap_free(udev->data_bitmap);
> udev->data_bitmap = NULL;
> err_bitmap_alloc:
> kfree(info->name);
>
Looks nice to me. Thanks.
Acked-by: Mike Christie <mchristi@xxxxxxxxxx>
