compat_ioctl: block: handle Persistent Reservations

[sfrench/cifs-2.6.git] / block / compat_ioctl.c

diff --git a/block/compat_ioctl.c b/block/compat_ioctl.c
index 5b13e344229c7d9caec7498eca1f4865ac81cb74..3ed7a0f144a994b28aa2bc269cadece8c6a821d8 100644 (file)
--- a/block/compat_ioctl.c
+++ b/block/compat_ioctl.c
@@ -6,6 +6,7 @@
 #include <linux/compat.h>
 #include <linux/elevator.h>
 #include <linux/hdreg.h>
+#include <linux/pr.h>
 #include <linux/slab.h>
 #include <linux/syscalls.h>
 #include <linux/types.h>
@@ -408,6 +409,14 @@ long compat_blkdev_ioctl(struct file *file, unsigned cmd, unsigned long arg)
        case BLKTRACETEARDOWN: /* compatible */
                ret = blk_trace_ioctl(bdev, cmd, compat_ptr(arg));
                return ret;
+       case IOC_PR_REGISTER:
+       case IOC_PR_RESERVE:
+       case IOC_PR_RELEASE:
+       case IOC_PR_PREEMPT:
+       case IOC_PR_PREEMPT_ABORT:
+       case IOC_PR_CLEAR:
+               return blkdev_ioctl(bdev, mode, cmd,
+                               (unsigned long)compat_ptr(arg));
        default:
                if (disk->fops->compat_ioctl)
                        ret = disk->fops->compat_ioctl(bdev, mode, cmd, arg);