diff options
author | Mikulas Patocka <mpatocka@redhat.com> | 2009-06-22 05:12:23 -0400 |
---|---|---|
committer | Alasdair G Kergon <agk@redhat.com> | 2009-06-22 05:12:23 -0400 |
commit | 647c7db14ef9cacc4ccb3683e206b61f0de6dc2b (patch) | |
tree | 4ef2475e295813dcce1123f2c74ba04061db1b7e /drivers/md | |
parent | 374bf7e7f6cc38b0483351a2029a97910eadde1b (diff) |
dm crypt: support flush
Flush support for dm-crypt target.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Diffstat (limited to 'drivers/md')
-rw-r--r-- | drivers/md/dm-crypt.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c index 53394e863c74..04db6c4004a8 100644 --- a/drivers/md/dm-crypt.c +++ b/drivers/md/dm-crypt.c | |||
@@ -1132,6 +1132,7 @@ static int crypt_ctr(struct dm_target *ti, unsigned int argc, char **argv) | |||
1132 | goto bad_crypt_queue; | 1132 | goto bad_crypt_queue; |
1133 | } | 1133 | } |
1134 | 1134 | ||
1135 | ti->num_flush_requests = 1; | ||
1135 | ti->private = cc; | 1136 | ti->private = cc; |
1136 | return 0; | 1137 | return 0; |
1137 | 1138 | ||
@@ -1189,6 +1190,13 @@ static int crypt_map(struct dm_target *ti, struct bio *bio, | |||
1189 | union map_info *map_context) | 1190 | union map_info *map_context) |
1190 | { | 1191 | { |
1191 | struct dm_crypt_io *io; | 1192 | struct dm_crypt_io *io; |
1193 | struct crypt_config *cc; | ||
1194 | |||
1195 | if (unlikely(bio_empty_barrier(bio))) { | ||
1196 | cc = ti->private; | ||
1197 | bio->bi_bdev = cc->dev->bdev; | ||
1198 | return DM_MAPIO_REMAPPED; | ||
1199 | } | ||
1192 | 1200 | ||
1193 | io = crypt_io_alloc(ti, bio, bio->bi_sector - ti->begin); | 1201 | io = crypt_io_alloc(ti, bio, bio->bi_sector - ti->begin); |
1194 | 1202 | ||