dm error: add DAX support
Allow the error target to replace an existing DAX-enabled target.
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
diff --git a/drivers/md/dm-target.c b/drivers/md/dm-target.c
index 5c826b4..6eecd6b 100644
--- a/drivers/md/dm-target.c
+++ b/drivers/md/dm-target.c
@@ -148,9 +148,15 @@
{
}
+static long io_err_direct_access(struct dm_target *ti, sector_t sector,
+ void __pmem **kaddr, pfn_t *pfn, long size)
+{
+ return -EIO;
+}
+
static struct target_type error_target = {
.name = "error",
- .version = {1, 4, 0},
+ .version = {1, 5, 0},
.features = DM_TARGET_WILDCARD,
.ctr = io_err_ctr,
.dtr = io_err_dtr,
@@ -158,6 +164,7 @@
.map_rq = io_err_map_rq,
.clone_and_map_rq = io_err_clone_and_map_rq,
.release_clone_rq = io_err_release_clone_rq,
+ .direct_access = io_err_direct_access,
};
int __init dm_target_init(void)
