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Go Back   Linux Archive > Redhat > Device-mapper Development

 
 
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Old 07-28-2010, 02:21 PM
Mike Snitzer
 
Default dm: use dm_target_offset in targets

Convert targets over to using dm_target_offset.

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
---
drivers/md/dm-crypt.c | 4 ++--
drivers/md/dm-delay.c | 4 ++--
drivers/md/dm-linear.c | 2 +-
drivers/md/dm-raid1.c | 2 +-
drivers/md/dm-stripe.c | 2 +-
5 files changed, 7 insertions(+), 7 deletions(-)

Index: linux-2.6/drivers/md/dm-stripe.c
================================================== =================
--- linux-2.6.orig/drivers/md/dm-stripe.c
+++ linux-2.6/drivers/md/dm-stripe.c
@@ -211,7 +211,7 @@ static void stripe_dtr(struct dm_target
static void stripe_map_sector(struct stripe_c *sc, sector_t sector,
uint32_t *stripe, sector_t *result)
{
- sector_t offset = sector - sc->ti->begin;
+ sector_t offset = dm_target_offset(sc->ti, sector);
sector_t chunk = offset >> sc->chunk_shift;
*stripe = sector_div(chunk, sc->stripes);
*result = (chunk << sc->chunk_shift) | (offset & sc->chunk_mask);
Index: linux-2.6/drivers/md/dm-crypt.c
================================================== =================
--- linux-2.6.orig/drivers/md/dm-crypt.c
+++ linux-2.6/drivers/md/dm-crypt.c
@@ -1254,7 +1254,7 @@ static int crypt_map(struct dm_target *t
return DM_MAPIO_REMAPPED;
}

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

if (bio_data_dir(io->base_bio) == READ)
kcryptd_queue_io(io);
@@ -1377,7 +1377,7 @@ static int crypt_merge(struct dm_target
return max_size;

bvm->bi_bdev = cc->dev->bdev;
- bvm->bi_sector = cc->start + bvm->bi_sector - ti->begin;
+ bvm->bi_sector = cc->start + dm_target_offset(ti, bvm->bi_sector);

return min(max_size, q->merge_bvec_fn(q, bvm, biovec));
}
Index: linux-2.6/drivers/md/dm-delay.c
================================================== =================
--- linux-2.6.orig/drivers/md/dm-delay.c
+++ linux-2.6/drivers/md/dm-delay.c
@@ -282,14 +282,14 @@ static int delay_map(struct dm_target *t
bio->bi_bdev = dc->dev_write->bdev;
if (bio_sectors(bio))
bio->bi_sector = dc->start_write +
- (bio->bi_sector - ti->begin);
+ dm_target_offset(ti, bio->bi_sector);

return delay_bio(dc, dc->write_delay, bio);
}

bio->bi_bdev = dc->dev_read->bdev;
bio->bi_sector = dc->start_read +
- (bio->bi_sector - ti->begin);
+ dm_target_offset(ti, bio->bi_sector);

return delay_bio(dc, dc->read_delay, bio);
}
Index: linux-2.6/drivers/md/dm-linear.c
================================================== =================
--- linux-2.6.orig/drivers/md/dm-linear.c
+++ linux-2.6/drivers/md/dm-linear.c
@@ -74,7 +74,7 @@ static sector_t linear_map_sector(struct
{
struct linear_c *lc = ti->private;

- return lc->start + (bi_sector - ti->begin);
+ return lc->start + dm_target_offset(ti, bi_sector);
}

static void linear_map_bio(struct dm_target *ti, struct bio *bio)
Index: linux-2.6/drivers/md/dm-raid1.c
================================================== =================
--- linux-2.6.orig/drivers/md/dm-raid1.c
+++ linux-2.6/drivers/md/dm-raid1.c
@@ -445,7 +445,7 @@ static sector_t map_sector(struct mirror
{
if (unlikely(!bio->bi_size))
return 0;
- return m->offset + (bio->bi_sector - m->ms->ti->begin);
+ return m->offset + dm_target_offset(m->ms->ti, bio->bi_sector);
}

static void map_bio(struct mirror *m, struct bio *bio)

--
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