From f8df1fdf18839cb4ef2035310bb9b6ec02025598 Mon Sep 17 00:00:00 2001 From: Mike Snitzer Date: Fri, 24 Jun 2016 17:09:35 -0400 Subject: dm error: add DAX support Allow the error target to replace an existing DAX-enabled target. Signed-off-by: Mike Snitzer --- drivers/md/dm-target.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) (limited to 'drivers/md/dm-target.c') diff --git a/drivers/md/dm-target.c b/drivers/md/dm-target.c index 5c826b450aad..6eecd6b36f76 100644 --- a/drivers/md/dm-target.c +++ b/drivers/md/dm-target.c @@ -148,9 +148,15 @@ static void io_err_release_clone_rq(struct request *clone) { } +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 @@ static struct target_type error_target = { .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) -- cgit v1.2.3-58-ga151