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Subject[PATCH v2 05/27] compat_ioctl: block: handle Persistent Reservations
Date
These were added to blkdev_ioctl() in linux-5.5 but not
blkdev_compat_ioctl, so add them now.

Cc: <stable@vger.kernel.org> # v4.4+
Fixes: bbd3e064362e ("block: add an API for Persistent Reservations")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
block/compat_ioctl.c | 8 ++++++++
1 file changed, 8 insertions(+)

diff --git a/block/compat_ioctl.c b/block/compat_ioctl.c
index 5b13e344229c..f16ae92065d7 100644
--- a/block/compat_ioctl.c
+++ b/block/compat_ioctl.c
@@ -408,6 +408,14 @@ 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);
--
2.20.0
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