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dm: Use bvec_iter for dm_bio_record()

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This patch doesn't itself have any functional changes, but immutable
biovecs are going to add a bi_bvec_done member to bi_iter, which will
need to be saved too here.

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
Cc: Alasdair Kergon <agk@redhat.com>
Cc: dm-devel@redhat.com
Reviewed-by: Mike Snitzer <snitzer@redhat.com>
This commit is contained in:
Kent Overstreet 2013-08-07 14:24:19 -07:00
parent 4f024f3797
commit 75d5d81565
1 changed files with 3 additions and 9 deletions
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12
drivers/md/dm-bio-record.h
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@ -28,11 +28,9 @@ struct dm_bio_vec_details {
};
struct dm_bio_details {
sector_t bi_sector;
struct block_device *bi_bdev;
unsigned int bi_size;
unsigned short bi_idx;
unsigned long bi_flags;
struct bvec_iter bi_iter;
struct dm_bio_vec_details bi_io_vec[BIO_MAX_PAGES];
};
@ -40,11 +38,9 @@ static inline void dm_bio_record(struct dm_bio_details *bd, struct bio *bio)
{
unsigned i;
bd->bi_sector = bio->bi_iter.bi_sector;
bd->bi_bdev = bio->bi_bdev;
bd->bi_size = bio->bi_iter.bi_size;
bd->bi_idx = bio->bi_iter.bi_idx;
bd->bi_flags = bio->bi_flags;
bd->bi_iter = bio->bi_iter;
for (i = 0; i < bio->bi_vcnt; i++) {
bd->bi_io_vec[i].bv_len = bio->bi_io_vec[i].bv_len;
@ -56,11 +52,9 @@ static inline void dm_bio_restore(struct dm_bio_details *bd, struct bio *bio)
{
unsigned i;
bio->bi_iter.bi_sector = bd->bi_sector;
bio->bi_bdev = bd->bi_bdev;
bio->bi_iter.bi_size = bd->bi_size;
bio->bi_iter.bi_idx = bd->bi_idx;
bio->bi_flags = bd->bi_flags;
bio->bi_iter = bd->bi_iter;
for (i = 0; i < bio->bi_vcnt; i++) {
bio->bi_io_vec[i].bv_len = bd->bi_io_vec[i].bv_len;