dm crypt: support flush (647c7db1) · Commits · 戴 / test

drivers/md/dm-crypt.c

+8 −0

Original line number	Diff line number	Diff line
		@@ -1132,6 +1132,7 @@ static int crypt_ctr(struct dm_target ti, unsigned int argc, char *argv)
		goto bad_crypt_queue;
		}

		ti->num_flush_requests = 1;
		ti->private = cc;
		return 0;

		@@ -1189,6 +1190,13 @@ static int crypt_map(struct dm_target ti, struct bio bio,
		union map_info *map_context)
		{
		struct dm_crypt_io *io;
		struct crypt_config *cc;

		if (unlikely(bio_empty_barrier(bio))) {
		cc = ti->private;
		bio->bi_bdev = cc->dev->bdev;
		return DM_MAPIO_REMAPPED;
		}

		io = crypt_io_alloc(ti, bio, bio->bi_sector - ti->begin);