From 9d433cb875e9540b072d3fb200f32b364e18cf40 Mon Sep 17 00:00:00 2001
From: Allan Jude <allanjude@FreeBSD.org>
Date: Thu, 23 Apr 2020 20:14:59 +0000
Subject: [PATCH] trim(8): candelete() returns wrong results because fd is
 opened O_WRONLY

This was discovered while using trim(8) to test bhyve trim

Reviewed by:	asomers
Differential Revision:	https://reviews.freebsd.org/D24371
---
 usr.sbin/trim/trim.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/usr.sbin/trim/trim.c b/usr.sbin/trim/trim.c
index da332ca81e5..a368f3ac799 100644
--- a/usr.sbin/trim/trim.c
+++ b/usr.sbin/trim/trim.c
@@ -220,7 +220,7 @@ trim(const char *path, off_t offset, off_t length, bool dryrun, bool verbose)
 		return (0);
 	}
 
-	fd = opendev(path, O_WRONLY | O_DIRECT);
+	fd = opendev(path, O_RDWR | O_DIRECT);
 	arg[0] = offset;
 	arg[1] = length;