diff options
| author | Kent Overstreet <koverstreet@google.com> | 2012-09-06 15:35:02 -0700 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2012-09-09 10:35:39 +0200 |
| commit | bf800ef1816b4283a885e55ad38068aec9711e4d (patch) | |
| tree | c99cbe70b68ede65b478b3006a7ed7e34b453f3d /drivers/md/dm-crypt.c | |
| parent | 3f86a82aeb03e6100f7ab39f4702e033a5e38166 (diff) | |
| download | lwn-bf800ef1816b4283a885e55ad38068aec9711e4d.tar.gz lwn-bf800ef1816b4283a885e55ad38068aec9711e4d.zip | |
block: Add bio_clone_bioset(), bio_clone_kmalloc()
Previously, there was bio_clone() but it only allocated from the fs bio
set; as a result various users were open coding it and using
__bio_clone().
This changes bio_clone() to become bio_clone_bioset(), and then we add
bio_clone() and bio_clone_kmalloc() as wrappers around it, making use of
the functionality the last patch adedd.
This will also help in a later patch changing how bio cloning works.
Signed-off-by: Kent Overstreet <koverstreet@google.com>
CC: Jens Axboe <axboe@kernel.dk>
CC: NeilBrown <neilb@suse.de>
CC: Alasdair Kergon <agk@redhat.com>
CC: Boaz Harrosh <bharrosh@panasas.com>
CC: Jeff Garzik <jeff@garzik.org>
Acked-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/md/dm-crypt.c')
| -rw-r--r-- | drivers/md/dm-crypt.c | 7 |
1 files changed, 1 insertions, 6 deletions
diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c index 3c0acba042b6..bbf459bca61d 100644 --- a/drivers/md/dm-crypt.c +++ b/drivers/md/dm-crypt.c @@ -979,19 +979,14 @@ static int kcryptd_io_read(struct dm_crypt_io *io, gfp_t gfp) * copy the required bvecs because we need the original * one in order to decrypt the whole bio data *afterwards*. */ - clone = bio_alloc_bioset(gfp, bio_segments(base_bio), cc->bs); + clone = bio_clone_bioset(base_bio, gfp, cc->bs); if (!clone) return 1; crypt_inc_pending(io); clone_init(io, clone); - clone->bi_idx = 0; - clone->bi_vcnt = bio_segments(base_bio); - clone->bi_size = base_bio->bi_size; clone->bi_sector = cc->start + io->sector; - memcpy(clone->bi_io_vec, bio_iovec(base_bio), - sizeof(struct bio_vec) * clone->bi_vcnt); generic_make_request(clone); return 0; |