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| author | Mike Snitzer <snitzer@redhat.com> | 2010-08-12 04:14:14 +0100 |
|---|---|---|
| committer | Alasdair G Kergon <agk@redhat.com> | 2010-08-12 04:14:14 +0100 |
| commit | 38e1b257fd7b4f3eee667d29a5e44ec15e253c1c (patch) | |
| tree | c5b8d853de330cb2db9fefc8588e283a1916b934 /drivers/md/dm-target.c | |
| parent | 3fd5d48027181168ce85e8094b926aeb9f34c556 (diff) | |
| download | lwn-38e1b257fd7b4f3eee667d29a5e44ec15e253c1c.tar.gz lwn-38e1b257fd7b4f3eee667d29a5e44ec15e253c1c.zip | |
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>
Diffstat (limited to 'drivers/md/dm-target.c')
| -rw-r--r-- | drivers/md/dm-target.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/md/dm-target.c b/drivers/md/dm-target.c index 11dea11dc0b6..8da366cf381c 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; } |