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dm: remove map_info

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This patch removes map_info from bio-based device mapper targets.
map_info is still used for request-based targets.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
This commit is contained in:
Mikulas Patocka 2012-12-21 20:23:41 +00:00 committed by Alasdair G Kergon
parent ee18026ac6
commit 7de3ee57da
14 changed files with 31 additions and 54 deletions
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5
drivers/md/dm-crypt.c
View File

@ -1689,8 +1689,7 @@ bad:
return ret;
}
static int crypt_map(struct dm_target *ti, struct bio *bio,
union map_info *map_context)
static int crypt_map(struct dm_target *ti, struct bio *bio)
{
struct dm_crypt_io *io;
struct crypt_config *cc = ti->private;
@ -1846,7 +1845,7 @@ static int crypt_iterate_devices(struct dm_target *ti,
static struct target_type crypt_target = {
.name = "crypt",
.version = {1, 11, 0},
.version = {1, 12, 0},
.module = THIS_MODULE,
.ctr = crypt_ctr,
.dtr = crypt_dtr,

5
drivers/md/dm-delay.c
View File

@ -274,8 +274,7 @@ static void delay_resume(struct dm_target *ti)
atomic_set(&dc->may_delay, 1);
}
static int delay_map(struct dm_target *ti, struct bio *bio,
union map_info *map_context)
static int delay_map(struct dm_target *ti, struct bio *bio)
{
struct delay_c *dc = ti->private;
@ -338,7 +337,7 @@ out:
static struct target_type delay_target = {
.name = "delay",
.version = {1, 1, 0},
.version = {1, 2, 0},
.module = THIS_MODULE,
.ctr = delay_ctr,
.dtr = delay_dtr,

6
drivers/md/dm-flakey.c
View File

@ -270,8 +270,7 @@ static void corrupt_bio_data(struct bio *bio, struct flakey_c *fc)
}
}
static int flakey_map(struct dm_target *ti, struct bio *bio,
union map_info *map_context)
static int flakey_map(struct dm_target *ti, struct bio *bio)
{
struct flakey_c *fc = ti->private;
unsigned elapsed;
@ -321,8 +320,7 @@ map_bio:
return DM_MAPIO_REMAPPED;
}
static int flakey_end_io(struct dm_target *ti, struct bio *bio,
int error, union map_info *map_context)
static int flakey_end_io(struct dm_target *ti, struct bio *bio, int error)
{
struct flakey_c *fc = ti->private;
struct per_bio_data *pb = dm_per_bio_data(bio, sizeof(struct per_bio_data));

3
drivers/md/dm-linear.c
View File

@ -88,8 +88,7 @@ static void linear_map_bio(struct dm_target *ti, struct bio *bio)
bio->bi_sector = linear_map_sector(ti, bio->bi_sector);
}
static int linear_map(struct dm_target *ti, struct bio *bio,
union map_info *map_context)
static int linear_map(struct dm_target *ti, struct bio *bio)
{
linear_map_bio(ti, bio);

4
drivers/md/dm-raid.c
View File

@ -1218,7 +1218,7 @@ static void raid_dtr(struct dm_target *ti)
context_free(rs);
}
static int raid_map(struct dm_target *ti, struct bio *bio, union map_info *map_context)
static int raid_map(struct dm_target *ti, struct bio *bio)
{
struct raid_set *rs = ti->private;
struct mddev *mddev = &rs->md;
@ -1432,7 +1432,7 @@ static void raid_resume(struct dm_target *ti)
static struct target_type raid_target = {
.name = "raid",
.version = {1, 3, 1},
.version = {1, 4, 0},
.module = THIS_MODULE,
.ctr = raid_ctr,
.dtr = raid_dtr,

6
drivers/md/dm-raid1.c
View File

@ -1142,8 +1142,7 @@ static void mirror_dtr(struct dm_target *ti)
/*
* Mirror mapping function
*/
static int mirror_map(struct dm_target *ti, struct bio *bio,
union map_info *map_context)
static int mirror_map(struct dm_target *ti, struct bio *bio)
{
int r, rw = bio_rw(bio);
struct mirror *m;
@ -1192,8 +1191,7 @@ static int mirror_map(struct dm_target *ti, struct bio *bio,
return DM_MAPIO_REMAPPED;
}
static int mirror_end_io(struct dm_target *ti, struct bio *bio,
int error, union map_info *map_context)
static int mirror_end_io(struct dm_target *ti, struct bio *bio, int error)
{
int rw = bio_rw(bio);
struct mirror_set *ms = (struct mirror_set *) ti->private;

12
drivers/md/dm-snap.c
View File

@ -1567,8 +1567,7 @@ static void remap_exception(struct dm_snapshot *s, struct dm_exception *e,
s->store->chunk_mask);
}
static int snapshot_map(struct dm_target *ti, struct bio *bio,
union map_info *map_context)
static int snapshot_map(struct dm_target *ti, struct bio *bio)
{
struct dm_exception *e;
struct dm_snapshot *s = ti->private;
@ -1683,8 +1682,7 @@ out:
* If merging is currently taking place on the chunk in question, the
* I/O is deferred by adding it to s->bios_queued_during_merge.
*/
static int snapshot_merge_map(struct dm_target *ti, struct bio *bio,
union map_info *map_context)
static int snapshot_merge_map(struct dm_target *ti, struct bio *bio)
{
struct dm_exception *e;
struct dm_snapshot *s = ti->private;
@ -1744,8 +1742,7 @@ out_unlock:
return r;
}
static int snapshot_end_io(struct dm_target *ti, struct bio *bio,
int error, union map_info *map_context)
static int snapshot_end_io(struct dm_target *ti, struct bio *bio, int error)
{
struct dm_snapshot *s = ti->private;
@ -2119,8 +2116,7 @@ static void origin_dtr(struct dm_target *ti)
dm_put_device(ti, dev);
}
static int origin_map(struct dm_target *ti, struct bio *bio,
union map_info *map_context)
static int origin_map(struct dm_target *ti, struct bio *bio)
{
struct dm_dev *dev = ti->private;
bio->bi_bdev = dev->bdev;

6
drivers/md/dm-stripe.c
View File

@ -271,8 +271,7 @@ static int stripe_map_discard(struct stripe_c *sc, struct bio *bio,
}
}
static int stripe_map(struct dm_target *ti, struct bio *bio,
union map_info *map_context)
static int stripe_map(struct dm_target *ti, struct bio *bio)
{
struct stripe_c *sc = ti->private;
uint32_t stripe;
@ -342,8 +341,7 @@ static int stripe_status(struct dm_target *ti, status_type_t type,
return 0;
}
static int stripe_end_io(struct dm_target *ti, struct bio *bio,
int error, union map_info *map_context)
static int stripe_end_io(struct dm_target *ti, struct bio *bio, int error)
{
unsigned i;
char major_minor[16];

5
drivers/md/dm-target.c
View File

@ -126,15 +126,14 @@ static void io_err_dtr(struct dm_target *tt)
/* empty */
}
static int io_err_map(struct dm_target *tt, struct bio *bio,
union map_info *map_context)
static int io_err_map(struct dm_target *tt, struct bio *bio)
{
return -EIO;
}
static struct target_type error_target = {
.name = "error",
.version = {1, 0, 1},
.version = {1, 1, 0},
.ctr = io_err_ctr,
.dtr = io_err_dtr,
.map = io_err_map,

15
drivers/md/dm-thin.c
View File

@ -1371,8 +1371,7 @@ static void thin_hook_bio(struct thin_c *tc, struct bio *bio)
/*
* Non-blocking function called from the thin target's map function.
*/
static int thin_bio_map(struct dm_target *ti, struct bio *bio,
union map_info *map_context)
static int thin_bio_map(struct dm_target *ti, struct bio *bio)
{
int r;
struct thin_c *tc = ti->private;
@ -1980,8 +1979,7 @@ out_unlock:
return r;
}
static int pool_map(struct dm_target *ti, struct bio *bio,
union map_info *map_context)
static int pool_map(struct dm_target *ti, struct bio *bio)
{
int r;
struct pool_c *pt = ti->private;
@ -2626,17 +2624,14 @@ out_unlock:
return r;
}
static int thin_map(struct dm_target *ti, struct bio *bio,
union map_info *map_context)
static int thin_map(struct dm_target *ti, struct bio *bio)
{
bio->bi_sector = dm_target_offset(ti, bio->bi_sector);
return thin_bio_map(ti, bio, map_context);
return thin_bio_map(ti, bio);
}
static int thin_endio(struct dm_target *ti,
struct bio *bio, int err,
union map_info *map_context)
static int thin_endio(struct dm_target *ti, struct bio *bio, int err)
{
unsigned long flags;
struct dm_thin_endio_hook *h = dm_per_bio_data(bio, sizeof(struct dm_thin_endio_hook));

3
drivers/md/dm-verity.c
View File

@ -458,8 +458,7 @@ no_prefetch_cluster:
* Bio map function. It allocates dm_verity_io structure and bio vector and
* fills them. Then it issues prefetches and the I/O.
*/
static int verity_map(struct dm_target *ti, struct bio *bio,
union map_info *map_context)
static int verity_map(struct dm_target *ti, struct bio *bio)
{
struct dm_verity *v = ti->private;
struct dm_verity_io *io;

5
drivers/md/dm-zero.c
View File

@ -33,8 +33,7 @@ static int zero_ctr(struct dm_target *ti, unsigned int argc, char **argv)
/*
* Return zeros only on reads
*/
static int zero_map(struct dm_target *ti, struct bio *bio,
union map_info *map_context)
static int zero_map(struct dm_target *ti, struct bio *bio)
{
switch(bio_rw(bio)) {
case READ:
@ -56,7 +55,7 @@ static int zero_map(struct dm_target *ti, struct bio *bio,
static struct target_type zero_target = {
.name = "zero",
.version = {1, 0, 0},
.version = {1, 1, 0},
.module = THIS_MODULE,
.ctr = zero_ctr,
.map = zero_map,

4
drivers/md/dm.c
View File

@ -645,7 +645,7 @@ static void clone_endio(struct bio *bio, int error)
error = -EIO;
if (endio) {
r = endio(tio->ti, bio, error, &tio->info);
r = endio(tio->ti, bio, error);
if (r < 0 || r == DM_ENDIO_REQUEUE)
/*
* error and requeue request are handled
@ -1004,7 +1004,7 @@ static void __map_bio(struct dm_target *ti, struct dm_target_io *tio)
*/
atomic_inc(&tio->io->io_count);
sector = clone->bi_sector;
r = ti->type->map(ti, clone, &tio->info);
r = ti->type->map(ti, clone);
if (r == DM_MAPIO_REMAPPED) {
/* the bio has been remapped so dispatch it */

6
include/linux/device-mapper.h
View File

@ -45,8 +45,7 @@ typedef void (*dm_dtr_fn) (struct dm_target *ti);
* = 1: simple remap complete
* = 2: The target wants to push back the io
*/
typedef int (*dm_map_fn) (struct dm_target *ti, struct bio *bio,
union map_info *map_context);
typedef int (*dm_map_fn) (struct dm_target *ti, struct bio *bio);
typedef int (*dm_map_request_fn) (struct dm_target *ti, struct request *clone,
union map_info *map_context);
@ -59,8 +58,7 @@ typedef int (*dm_map_request_fn) (struct dm_target *ti, struct request *clone,
* 2 : The target wants to push back the io
*/
typedef int (*dm_endio_fn) (struct dm_target *ti,
struct bio *bio, int error,
union map_info *map_context);
struct bio *bio, int error);
typedef int (*dm_request_endio_fn) (struct dm_target *ti,
struct request *clone, int error,
union map_info *map_context);