From 5d065460cd25350c3015c848e23de8ef57c688e6 Mon Sep 17 00:00:00 2001 From: Evan Green Date: Mon, 2 Jul 2018 16:03:46 -0700 Subject: [PATCH] UPSTREAM: loop: Add LOOP_SET_BLOCK_SIZE in compat ioctl This change adds LOOP_SET_BLOCK_SIZE as one of the supported ioctls in lo_compat_ioctl. It only takes an unsigned long argument, and in practice a 32-bit value works fine. Mot-CRs-fixed: (CR) Bug: 117823094 Change-Id: I0061a082eb2632c47b7d66f35f2c909d33ff1653 Reviewed-by: Omar Sandoval Signed-off-by: Evan Green Signed-off-by: Jens Axboe (cherry picked from commit 9fea4b395260175de4016b42982f45a3e6e03d0b) Signed-off-by: Martijn Coenen Reviewed-on: https://gerrit.mot.com/1427694 Tested-by: Jira Key SLTApproved: Slta Waiver SME-Granted: SME Approvals Granted Reviewed-by: Xiangpo Zhao Submit-Approved: Jira Key --- drivers/block/loop.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/block/loop.c b/drivers/block/loop.c index f0383d8ce84a..31d7b03919cb 100644 --- a/drivers/block/loop.c +++ b/drivers/block/loop.c @@ -1606,6 +1606,7 @@ static int lo_compat_ioctl(struct block_device *bdev, fmode_t mode, arg = (unsigned long) compat_ptr(arg); case LOOP_SET_FD: case LOOP_CHANGE_FD: + case LOOP_SET_BLOCK_SIZE: err = lo_ioctl(bdev, mode, cmd, arg); break; default: -- 2.20.1