Don't define a direct_access function that fails, dm_dax_direct_access already fails with -EIO if the pointer is zero;
Signed-off-by: Mikulas Patocka <[email protected]> --- drivers/md/dm-snap.c | 8 -------- 1 file changed, 8 deletions(-) Index: linux-2.6/drivers/md/dm-snap.c =================================================================== --- linux-2.6.orig/drivers/md/dm-snap.c 2019-02-27 17:57:19.000000000 +0100 +++ linux-2.6/drivers/md/dm-snap.c 2019-02-27 17:57:47.000000000 +0100 @@ -2338,13 +2338,6 @@ static int origin_map(struct dm_target * return do_origin(o->dev, bio); } -static long origin_dax_direct_access(struct dm_target *ti, pgoff_t pgoff, - long nr_pages, void **kaddr, pfn_t *pfn) -{ - DMWARN("device does not support dax."); - return -EIO; -} - /* * Set the target "max_io_len" field to the minimum of all the snapshots' * chunk sizes. @@ -2404,7 +2397,6 @@ static struct target_type origin_target .postsuspend = origin_postsuspend, .status = origin_status, .iterate_devices = origin_iterate_devices, - .direct_access = origin_dax_direct_access, }; static struct target_type snapshot_target = { -- dm-devel mailing list [email protected] https://www.redhat.com/mailman/listinfo/dm-devel
