Merge branch 'next' into for-linus

Prepare input updates for 6.6 merge window.

1 files changed, 16 insertions, 4 deletions

diff --git a/drivers/md/dm-target.c b/drivers/md/dm-target.c
index 26ea22b1a0d7e..27e2992ff2492 100644
--- a/drivers/md/dm-target.c
+++ b/drivers/md/dm-target.c
@@ -85,12 +85,15 @@ int dm_register_target(struct target_type *tt)
 	int rv = 0;
 
 	down_write(&_lock);
-	if (__find_target_type(tt->name))
+	if (__find_target_type(tt->name)) {
+		DMERR("%s: '%s' target already registered",
+		      __func__, tt->name);
 		rv = -EEXIST;
-	else
+	} else {
 		list_add(&tt->list, &_targets);
-
+	}
 	up_write(&_lock);
+
 	return rv;
 }
 EXPORT_SYMBOL(dm_register_target);
@@ -119,6 +122,7 @@ static int io_err_ctr(struct dm_target *tt, unsigned int argc, char **args)
 	 * Return error for discards instead of -EOPNOTSUPP
 	 */
 	tt->num_discard_bios = 1;
+	tt->discards_supported = true;
 
 	return 0;
 }
@@ -145,6 +149,13 @@ static void io_err_release_clone_rq(struct request *clone,
 {
 }
 
+static void io_err_io_hints(struct dm_target *ti, struct queue_limits *limits)
+{
+	limits->max_discard_sectors = UINT_MAX;
+	limits->max_hw_discard_sectors = UINT_MAX;
+	limits->discard_granularity = 512;
+}
+
 static long io_err_dax_direct_access(struct dm_target *ti, pgoff_t pgoff,
 		long nr_pages, enum dax_access_mode mode, void **kaddr,
 		pfn_t *pfn)
@@ -154,13 +165,14 @@ static long io_err_dax_direct_access(struct dm_target *ti, pgoff_t pgoff,
 
 static struct target_type error_target = {
 	.name = "error",
-	.version = {1, 5, 0},
+	.version = {1, 6, 0},
 	.features = DM_TARGET_WILDCARD,
 	.ctr  = io_err_ctr,
 	.dtr  = io_err_dtr,
 	.map  = io_err_map,
 	.clone_and_map_rq = io_err_clone_and_map_rq,
 	.release_clone_rq = io_err_release_clone_rq,
+	.io_hints = io_err_io_hints,
 	.direct_access = io_err_dax_direct_access,
 };