block: provide compat ioctl for BLKZEROOUT

commit 3b3a1814d1703027f9867d0f5cbbfaf6c7482474 upstream.

This patch provides the compat BLKZEROOUT ioctl. The argument is a pointer
to two uint64_t values, so there is no need to translate it.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Acked-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/block/compat_ioctl.c b/block/compat_ioctl.c
index 7c668c8a6f953e1b6c298c9fc8af400924d7368a..21ad6869a5cef82b5920c1c986cad5fb99dce956 100644 (file)
--- a/block/compat_ioctl.c
+++ b/block/compat_ioctl.c
@@ -689,6 +689,7 @@ long compat_blkdev_ioctl(struct file *file, unsigned cmd, unsigned long arg)
        case BLKROSET:
        case BLKDISCARD:
        case BLKSECDISCARD:
+       case BLKZEROOUT:
        /*
         * the ones below are implemented in blkdev_locked_ioctl,
         * but we call blkdev_ioctl, which gets the lock for us