diff options
| author | Mike Snitzer <snitzer@redhat.com> | 2010-08-03 11:30:41 +1000 |
|---|---|---|
| committer | Stephen Rothwell <sfr@canb.auug.org.au> | 2010-08-03 11:30:41 +1000 |
| commit | a7ce0d703547ab264a3786285f3484fc2962287b (patch) | |
| tree | 52c2ce82f91bf67243862cf9d500dbdd8b8da239 /drivers/md | |
| parent | 11f41b00be2b18c787a8dc5a167024a2c472e76f (diff) | |
dm-zero-silently-drop-discards
Have the zero target silently drop a discard 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')
| -rw-r--r-- | drivers/md/dm-zero.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/md/dm-zero.c b/drivers/md/dm-zero.c index bbc97030c0c2..cc2b3cb81946 100644 --- a/drivers/md/dm-zero.c +++ b/drivers/md/dm-zero.c @@ -22,6 +22,11 @@ static int zero_ctr(struct dm_target *ti, unsigned int argc, char **argv) return -EINVAL; } + /* + * Silently drop discards, avoiding -EOPNOTSUPP. + */ + ti->num_discard_requests = 1; + return 0; } |