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| author | Mike Snitzer <snitzer@kernel.org> | 2022-08-03 22:43:22 -0400 |
|---|---|---|
| committer | Mike Snitzer <snitzer@kernel.org> | 2022-08-04 14:02:20 -0400 |
| commit | 0a36463f4ca287e4d4ac15580c0aae5b23619212 (patch) | |
| tree | a0f2cc6bff2dcb7aeeba1f005a79a4b1b7f19edd | |
| parent | ba2cce82ba1ba74cd83bb3fd0e47849af4f2a605 (diff) | |
| download | idmapping-0a36463f4ca287e4d4ac15580c0aae5b23619212.tar.gz | |
dm verity: optimize verity_verify_io if FEC not configured
Only declare and copy bvec_iter if CONFIG_DM_VERITY_FEC is defined and
FEC enabled for the verity device.
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
| -rw-r--r-- | drivers/md/dm-verity-target.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/md/dm-verity-target.c b/drivers/md/dm-verity-target.c index d287d01b768434..5a4ee329285319 100644 --- a/drivers/md/dm-verity-target.c +++ b/drivers/md/dm-verity-target.c @@ -498,7 +498,9 @@ static int verity_verify_io(struct dm_verity_io *io) { bool is_zero; struct dm_verity *v = io->v; +#if defined(CONFIG_DM_VERITY_FEC) struct bvec_iter start; +#endif /* * Copy the iterator in case we need to restart verification in a * work-queue. @@ -542,7 +544,10 @@ static int verity_verify_io(struct dm_verity_io *io) if (unlikely(r < 0)) return r; - start = iter_copy; +#if defined(CONFIG_DM_VERITY_FEC) + if (verity_fec_is_enabled(v)) + start = iter_copy; +#endif r = verity_for_io_block(v, io, &iter_copy, &wait); if (unlikely(r < 0)) return r; @@ -564,9 +569,11 @@ static int verity_verify_io(struct dm_verity_io *io) * tasklet since it may sleep, so fallback to work-queue. */ return -EAGAIN; +#if defined(CONFIG_DM_VERITY_FEC) } else if (verity_fec_decode(v, io, DM_VERITY_BLOCK_TYPE_DATA, cur_block, NULL, &start) == 0) { continue; +#endif } else { if (bio->bi_status) { /* |