From 38e1b257fd7b4f3eee667d29a5e44ec15e253c1c Mon Sep 17 00:00:00 2001 From: Mike Snitzer Date: Thu, 12 Aug 2010 04:14:14 +0100 Subject: [PATCH] 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 Signed-off-by: Alasdair G Kergon --- drivers/md/dm-target.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/md/dm-target.c b/drivers/md/dm-target.c index 11dea11dc0b..8da366cf381 100644 --- a/drivers/md/dm-target.c +++ b/drivers/md/dm-target.c @@ -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; } -- 2.39.3