[PATCH] loop: Add LOOP_SET_DIRECT_IO in compat ioctl

From: Alessio Balsini
Date: Tue Aug 06 2019 - 18:05:52 EST


Export LOOP_SET_DIRECT_IO as additional lo_compat_ioctl.
The input argument for this ioctl is a single long, in the end converted
to a 1-bit boolean. Compatibility is then preserved.

Cc: Jens Axboe <axboe@xxxxxxxxx>
Signed-off-by: Alessio Balsini <balsini@xxxxxxxxxxx>
---
drivers/block/loop.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index 3036883fc9f8..a7461f482467 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -1755,6 +1755,7 @@ static int lo_compat_ioctl(struct block_device *bdev, fmode_t mode,
case LOOP_SET_FD:
case LOOP_CHANGE_FD:
case LOOP_SET_BLOCK_SIZE:
+ case LOOP_SET_DIRECT_IO:
err = lo_ioctl(bdev, mode, cmd, arg);
break;
default:
--
2.22.0.770.g0f2c4a37fd-goog