Commit 38e1b257 authored Aug 12, 2010 by Mike Snitzer Committed by Alasdair G Kergon Aug 12, 2010

dm: error return error for discards



Have the error target respond to a discard request with a hard -EIO
rather than fail the request with -EOPNOTSUPP.

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>

parent 3fd5d480

drivers/md/dm-target.c

+5 −0

Original line number	Diff line number	Diff line
		@@ -113,6 +113,11 @@ void dm_unregister_target(struct target_type *tt)
		*/
		static int io_err_ctr(struct dm_target tt, unsigned int argc, char *args)
		{
		/*
		* Return error for discards instead of -EOPNOTSUPP
		*/
		tt->num_discard_requests = 1;

		return 0;
		}