diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c
index 2ae151e59c0ce9425de217d32fed9e2e8e528ca3..13c15480d9401a79ea41fb44c603a007d97e2ea1 100644
--- a/drivers/md/dm-crypt.c
+++ b/drivers/md/dm-crypt.c
@@ -1637,7 +1637,7 @@ static int crypt_ctr(struct dm_target *ti, unsigned int argc, char **argv)
if (opt_params == 1 && opt_string &&
!strcasecmp(opt_string, "allow_discards"))
- ti->num_discard_requests = 1;
+ ti->num_discard_bios = 1;
else if (opt_params) {
ret = -EINVAL;
ti->error = "Invalid feature arguments";
@@ -1665,7 +1665,7 @@ static int crypt_ctr(struct dm_target *ti, unsigned int argc, char **argv)
goto bad;
}
- ti->num_flush_requests = 1;
+ ti->num_flush_bios = 1;
ti->discard_zeroes_data_unsupported = true;
return 0;
@@ -1726,7 +1726,7 @@ static void crypt_status(struct dm_target *ti, status_type_t type,
DMEMIT(" %llu %s %llu", (unsigned long long)cc->iv_offset,
cc->dev->name, (unsigned long long)cc->start);
- if (ti->num_discard_requests)
+ if (ti->num_discard_bios)
DMEMIT(" 1 allow_discards");
break;
diff --git a/drivers/md/dm-delay.c b/drivers/md/dm-delay.c
index c0d03b006e40fdeb11bf6cef0fa159f09399d89a..496d5f3646a5df623e6c0a9b22d35ad003c610bc 100644
--- a/drivers/md/dm-delay.c
+++ b/drivers/md/dm-delay.c
@@ -198,8 +198,8 @@ out:
mutex_init(&dc->timer_lock);
atomic_set(&dc->may_delay, 1);
- ti->num_flush_requests = 1;
- ti->num_discard_requests = 1;
+ ti->num_flush_bios = 1;
+ ti->num_discard_bios = 1;
ti->private = dc;
return 0;
diff --git a/drivers/md/dm-flakey.c b/drivers/md/dm-flakey.c
index 5d6c04cceee0e5b56f89b949a9e8e267b2640389..7fcf21cb4ff869dd636c91ffe2f8248f0a1d17c7 100644
--- a/drivers/md/dm-flakey.c
+++ b/drivers/md/dm-flakey.c
@@ -216,8 +216,8 @@ static int flakey_ctr(struct dm_target *ti, unsigned int argc, char **argv)
goto bad;
}
- ti->num_flush_requests = 1;
- ti->num_discard_requests = 1;
+ ti->num_flush_bios = 1;
+ ti->num_discard_bios = 1;
ti->per_bio_data_size = sizeof(struct per_bio_data);
ti->private = fc;
return 0;
diff --git a/drivers/md/dm-linear.c b/drivers/md/dm-linear.c
index 5be301c1e8092b7a2fd181752ee810cc3b3f6bae..4f99d267340cdb48c3a7b64edcdd4ed9a7fd48ea 100644
--- a/drivers/md/dm-linear.c
+++ b/drivers/md/dm-linear.c
@@ -53,9 +53,9 @@ static int linear_ctr(struct dm_target *ti, unsigned int argc, char **argv)
goto bad;
}
- ti->num_flush_requests = 1;
- ti->num_discard_requests = 1;
- ti->num_write_same_requests = 1;
+ ti->num_flush_bios = 1;
+ ti->num_discard_bios = 1;
+ ti->num_write_same_bios = 1;
ti->private = lc;
return 0;
diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c
index d267bb5705e9348b5af30cb8e0699690098738cd..51bb81676be37d2ff4520557c70f83bda488845a 100644
--- a/drivers/md/dm-mpath.c
+++ b/drivers/md/dm-mpath.c
@@ -905,8 +905,8 @@ static int multipath_ctr(struct dm_target *ti, unsigned int argc,
goto bad;
}
- ti->num_flush_requests = 1;
- ti->num_discard_requests = 1;
+ ti->num_flush_bios = 1;
+ ti->num_discard_bios = 1;
return 0;
diff --git a/drivers/md/dm-raid.c b/drivers/md/dm-raid.c
index 5a578d89da2d8f0cd292b80d65e2f9d8f5671a8c..9a01d1e4c78302a0fef677e2c516f2bf3daeca70 100644
--- a/drivers/md/dm-raid.c
+++ b/drivers/md/dm-raid.c
@@ -1151,7 +1151,7 @@ static int raid_ctr(struct dm_target *ti, unsigned argc, char **argv)
INIT_WORK(&rs->md.event_work, do_table_event);
ti->private = rs;
- ti->num_flush_requests = 1;
+ ti->num_flush_bios = 1;
mutex_lock(&rs->md.reconfig_mutex);
ret = md_run(&rs->md);
diff --git a/drivers/md/dm-raid1.c b/drivers/md/dm-raid1.c
index 7f2419099b50a8b8260f98ef7bc17ac22b1ab9e4..e2ea97723e109c7e7ec6122b5dd04ad02b3c8b38 100644
--- a/drivers/md/dm-raid1.c
+++ b/drivers/md/dm-raid1.c
@@ -1072,8 +1072,8 @@ static int mirror_ctr(struct dm_target *ti, unsigned int argc, char **argv)
if (r)
goto err_free_context;
- ti->num_flush_requests = 1;
- ti->num_discard_requests = 1;
+ ti->num_flush_bios = 1;
+ ti->num_discard_bios = 1;
ti->per_bio_data_size = sizeof(struct dm_raid1_bio_record);
ti->discard_zeroes_data_unsupported = true;
diff --git a/drivers/md/dm-snap.c b/drivers/md/dm-snap.c
index 6e45e3774eaba67435c4b26e428845a008c83627..5d78027e07ac2a842d901187c6ed2375ac8a6a25 100644
--- a/drivers/md/dm-snap.c
+++ b/drivers/md/dm-snap.c
@@ -1037,7 +1037,7 @@ static int snapshot_ctr(struct dm_target *ti, unsigned int argc, char **argv)
int i;
int r = -EINVAL;
char *origin_path, *cow_path;
- unsigned args_used, num_flush_requests = 1;
+ unsigned args_used, num_flush_bios = 1;
fmode_t origin_mode = FMODE_READ;
if (argc != 4) {
@@ -1047,7 +1047,7 @@ static int snapshot_ctr(struct dm_target *ti, unsigned int argc, char **argv)
}
if (dm_target_is_snapshot_merge(ti)) {
- num_flush_requests = 2;
+ num_flush_bios = 2;
origin_mode = FMODE_WRITE;
}
@@ -1127,7 +1127,7 @@ static int snapshot_ctr(struct dm_target *ti, unsigned int argc, char **argv)
spin_lock_init(&s->tracked_chunk_lock);
ti->private = s;
- ti->num_flush_requests = num_flush_requests;
+ ti->num_flush_bios = num_flush_bios;
ti->per_bio_data_size = sizeof(struct dm_snap_tracked_chunk);
/* Add snapshot to the list of snapshots for this origin */
@@ -1691,7 +1691,7 @@ static int snapshot_merge_map(struct dm_target *ti, struct bio *bio)
init_tracked_chunk(bio);
if (bio->bi_rw & REQ_FLUSH) {
- if (!dm_bio_get_target_request_nr(bio))
+ if (!dm_bio_get_target_bio_nr(bio))
bio->bi_bdev = s->origin->bdev;
else
bio->bi_bdev = s->cow->bdev;
@@ -2102,7 +2102,7 @@ static int origin_ctr(struct dm_target *ti, unsigned int argc, char **argv)
}
ti->private = dev;
- ti->num_flush_requests = 1;
+ ti->num_flush_bios = 1;
return 0;
}
diff --git a/drivers/md/dm-stripe.c b/drivers/md/dm-stripe.c
index aaecefa63935c2d1a081e75efdd9c762df61ba36..d8837d313f5434183439f057f463c99be100e0ea 100644
--- a/drivers/md/dm-stripe.c
+++ b/drivers/md/dm-stripe.c
@@ -160,9 +160,9 @@ static int stripe_ctr(struct dm_target *ti, unsigned int argc, char **argv)
if (r)
return r;
- ti->num_flush_requests = stripes;
- ti->num_discard_requests = stripes;
- ti->num_write_same_requests = stripes;
+ ti->num_flush_bios = stripes;
+ ti->num_discard_bios = stripes;
+ ti->num_write_same_bios = stripes;
sc->chunk_size = chunk_size;
if (chunk_size & (chunk_size - 1))
@@ -276,19 +276,19 @@ static int stripe_map(struct dm_target *ti, struct bio *bio)
{
struct stripe_c *sc = ti->private;
uint32_t stripe;
- unsigned target_request_nr;
+ unsigned target_bio_nr;
if (bio->bi_rw & REQ_FLUSH) {
- target_request_nr = dm_bio_get_target_request_nr(bio);
- BUG_ON(target_request_nr >= sc->stripes);
- bio->bi_bdev = sc->stripe[target_request_nr].dev->bdev;
+ target_bio_nr = dm_bio_get_target_bio_nr(bio);
+ BUG_ON(target_bio_nr >= sc->stripes);
+ bio->bi_bdev = sc->stripe[target_bio_nr].dev->bdev;
return DM_MAPIO_REMAPPED;
}
if (unlikely(bio->bi_rw & REQ_DISCARD) ||
unlikely(bio->bi_rw & REQ_WRITE_SAME)) {
- target_request_nr = dm_bio_get_target_request_nr(bio);
- BUG_ON(target_request_nr >= sc->stripes);
- return stripe_map_range(sc, bio, target_request_nr);
+ target_bio_nr = dm_bio_get_target_bio_nr(bio);
+ BUG_ON(target_bio_nr >= sc->stripes);
+ return stripe_map_range(sc, bio, target_bio_nr);
}
stripe_map_sector(sc, bio->bi_sector, &stripe, &bio->bi_sector);
diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
index c95405d04726630ddfcd227781333c5dbbe8a956..e50dad0c65f4759d535b5cf81b0258a3b27066b5 100644
--- a/drivers/md/dm-table.c
+++ b/drivers/md/dm-table.c
@@ -822,8 +822,8 @@ int dm_table_add_target(struct dm_table *t, const char *type,
t->highs[t->num_targets++] = tgt->begin + tgt->len - 1;
- if (!tgt->num_discard_requests && tgt->discards_supported)
- DMWARN("%s: %s: ignoring discards_supported because num_discard_requests is zero.",
+ if (!tgt->num_discard_bios && tgt->discards_supported)
+ DMWARN("%s: %s: ignoring discards_supported because num_discard_bios is zero.",
dm_device_name(t->md), type);
return 0;
@@ -1359,7 +1359,7 @@ static bool dm_table_supports_flush(struct dm_table *t, unsigned flush)
while (i < dm_table_get_num_targets(t)) {
ti = dm_table_get_target(t, i++);
- if (!ti->num_flush_requests)
+ if (!ti->num_flush_bios)
continue;
if (ti->flush_supported)
@@ -1438,7 +1438,7 @@ static bool dm_table_supports_write_same(struct dm_table *t)
while (i < dm_table_get_num_targets(t)) {
ti = dm_table_get_target(t, i++);
- if (!ti->num_write_same_requests)
+ if (!ti->num_write_same_bios)
return false;
if (!ti->type->iterate_devices ||
@@ -1656,7 +1656,7 @@ bool dm_table_supports_discards(struct dm_table *t)
while (i < dm_table_get_num_targets(t)) {
ti = dm_table_get_target(t, i++);
- if (!ti->num_discard_requests)
+ if (!ti->num_discard_bios)
continue;
if (ti->discards_supported)
diff --git a/drivers/md/dm-target.c b/drivers/md/dm-target.c
index 617d21a772568dad424aa1b49cb0a53de980b775..37ba5db71cd9b2f3c16c0e64e67b109401c5903d 100644
--- a/drivers/md/dm-target.c
+++ b/drivers/md/dm-target.c
@@ -116,7 +116,7 @@ static int io_err_ctr(struct dm_target *tt, unsigned int argc, char **args)
/*
* Return error for discards instead of -EOPNOTSUPP
*/
- tt->num_discard_requests = 1;
+ tt->num_discard_bios = 1;
return 0;
}
diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
index 088f6b34f599fbef57db7cfa9b4cc35f51058eab..303e11da7c2a5e5af1f3761efd99bdb1deea4569 100644
--- a/drivers/md/dm-thin.c
+++ b/drivers/md/dm-thin.c
@@ -1944,7 +1944,7 @@ static int pool_ctr(struct dm_target *ti, unsigned argc, char **argv)
pt->data_dev = data_dev;
pt->low_water_blocks = low_water_blocks;
pt->adjusted_pf = pt->requested_pf = pf;
- ti->num_flush_requests = 1;
+ ti->num_flush_bios = 1;
/*
* Only need to enable discards if the pool should pass
@@ -1952,7 +1952,7 @@ static int pool_ctr(struct dm_target *ti, unsigned argc, char **argv)
* processing will cause mappings to be removed from the btree.
*/
if (pf.discard_enabled && pf.discard_passdown) {
- ti->num_discard_requests = 1;
+ ti->num_discard_bios = 1;
/*
* Setting 'discards_supported' circumvents the normal
@@ -2593,17 +2593,17 @@ static int thin_ctr(struct dm_target *ti, unsigned argc, char **argv)
if (r)
goto bad_thin_open;
- ti->num_flush_requests = 1;
+ ti->num_flush_bios = 1;
ti->flush_supported = true;
ti->per_bio_data_size = sizeof(struct dm_thin_endio_hook);
/* In case the pool supports discards, pass them on. */
if (tc->pool->pf.discard_enabled) {
ti->discards_supported = true;
- ti->num_discard_requests = 1;
+ ti->num_discard_bios = 1;
ti->discard_zeroes_data_unsupported = true;
- /* Discard requests must be split on a block boundary */
- ti->split_discard_requests = true;
+ /* Discard bios must be split on a block boundary */
+ ti->split_discard_bios = true;
}
dm_put(pool_md);
diff --git a/drivers/md/dm-zero.c b/drivers/md/dm-zero.c
index 69a5c3b3b340cad4e58997955c13c8b56c7135de..c99003e0d47a7f2e58d6d3bf0aefe5bc0785f2e8 100644
--- a/drivers/md/dm-zero.c
+++ b/drivers/md/dm-zero.c
@@ -25,7 +25,7 @@ static int zero_ctr(struct dm_target *ti, unsigned int argc, char **argv)
/*
* Silently drop discards, avoiding -EOPNOTSUPP.
*/
- ti->num_discard_requests = 1;
+ ti->num_discard_bios = 1;
return 0;
}
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 4521d72637c213e1441bf23aac47071508415efa..caef71befc43e4cefc6439e38ecd9f778bf5852f 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -1103,7 +1103,7 @@ static void clone_bio(struct dm_target_io *tio, struct bio *bio,
static struct dm_target_io *alloc_tio(struct clone_info *ci,
struct dm_target *ti, int nr_iovecs,
- unsigned target_request_nr)
+ unsigned target_bio_nr)
{
struct dm_target_io *tio;
struct bio *clone;
@@ -1114,15 +1114,15 @@ static struct dm_target_io *alloc_tio(struct clone_info *ci,
tio->io = ci->io;
tio->ti = ti;
memset(&tio->info, 0, sizeof(tio->info));
- tio->target_request_nr = target_request_nr;
+ tio->target_bio_nr = target_bio_nr;
return tio;
}
static void __issue_target_request(struct clone_info *ci, struct dm_target *ti,
- unsigned request_nr, sector_t len)
+ unsigned target_bio_nr, sector_t len)
{
- struct dm_target_io *tio = alloc_tio(ci, ti, ci->bio->bi_max_vecs, request_nr);
+ struct dm_target_io *tio = alloc_tio(ci, ti, ci->bio->bi_max_vecs, target_bio_nr);
struct bio *clone = &tio->clone;
/*
@@ -1137,13 +1137,13 @@ static void __issue_target_request(struct clone_info *ci, struct dm_target *ti,
__map_bio(tio);
}
-static void __issue_target_requests(struct clone_info *ci, struct dm_target *ti,
- unsigned num_requests, sector_t len)
+static void __issue_target_bios(struct clone_info *ci, struct dm_target *ti,
+ unsigned num_bios, sector_t len)
{
- unsigned request_nr;
+ unsigned target_bio_nr;
- for (request_nr = 0; request_nr < num_requests; request_nr++)
- __issue_target_request(ci, ti, request_nr, len);
+ for (target_bio_nr = 0; target_bio_nr < num_bios; target_bio_nr++)
+ __issue_target_request(ci, ti, target_bio_nr, len);
}
static int __clone_and_map_empty_flush(struct clone_info *ci)
@@ -1153,7 +1153,7 @@ static int __clone_and_map_empty_flush(struct clone_info *ci)
BUG_ON(bio_has_data(ci->bio));
while ((ti = dm_table_get_target(ci->map, target_nr++)))
- __issue_target_requests(ci, ti, ti->num_flush_requests, 0);
+ __issue_target_bios(ci, ti, ti->num_flush_bios, 0);
return 0;
}
@@ -1173,32 +1173,32 @@ static void __clone_and_map_simple(struct clone_info *ci, struct dm_target *ti)
ci->sector_count = 0;
}
-typedef unsigned (*get_num_requests_fn)(struct dm_target *ti);
+typedef unsigned (*get_num_bios_fn)(struct dm_target *ti);
-static unsigned get_num_discard_requests(struct dm_target *ti)
+static unsigned get_num_discard_bios(struct dm_target *ti)
{
- return ti->num_discard_requests;
+ return ti->num_discard_bios;
}
-static unsigned get_num_write_same_requests(struct dm_target *ti)
+static unsigned get_num_write_same_bios(struct dm_target *ti)
{
- return ti->num_write_same_requests;
+ return ti->num_write_same_bios;
}
typedef bool (*is_split_required_fn)(struct dm_target *ti);
static bool is_split_required_for_discard(struct dm_target *ti)
{
- return ti->split_discard_requests;
+ return ti->split_discard_bios;
}
static int __clone_and_map_changing_extent_only(struct clone_info *ci,
- get_num_requests_fn get_num_requests,
+ get_num_bios_fn get_num_bios,
is_split_required_fn is_split_required)
{
struct dm_target *ti;
sector_t len;
- unsigned num_requests;
+ unsigned num_bios;
do {
ti = dm_table_find_target(ci->map, ci->sector);
@@ -1211,8 +1211,8 @@ static int __clone_and_map_changing_extent_only(struct clone_info *ci,
* reconfiguration might also have changed that since the
* check was performed.
*/
- num_requests = get_num_requests ? get_num_requests(ti) : 0;
- if (!num_requests)
+ num_bios = get_num_bios ? get_num_bios(ti) : 0;
+ if (!num_bios)
return -EOPNOTSUPP;
if (is_split_required && !is_split_required(ti))
@@ -1220,7 +1220,7 @@ static int __clone_and_map_changing_extent_only(struct clone_info *ci,
else
len = min(ci->sector_count, max_io_len(ci->sector, ti));
- __issue_target_requests(ci, ti, num_requests, len);
+ __issue_target_bios(ci, ti, num_bios, len);
ci->sector += len;
} while (ci->sector_count -= len);
@@ -1230,13 +1230,13 @@ static int __clone_and_map_changing_extent_only(struct clone_info *ci,
static int __clone_and_map_discard(struct clone_info *ci)
{
- return __clone_and_map_changing_extent_only(ci, get_num_discard_requests,
+ return __clone_and_map_changing_extent_only(ci, get_num_discard_bios,
is_split_required_for_discard);
}
static int __clone_and_map_write_same(struct clone_info *ci)
{
- return __clone_and_map_changing_extent_only(ci, get_num_write_same_requests, NULL);
+ return __clone_and_map_changing_extent_only(ci, get_num_write_same_bios, NULL);
}
static int __clone_and_map(struct clone_info *ci)
diff --git a/include/linux/device-mapper.h b/include/linux/device-mapper.h
index a5cda3ea6b88fa015ec173b6ebc9c1d5b32b2bc6..d5f984b0746611c80ba49dd3dfc9a67d5e5a1dd8 100644
--- a/include/linux/device-mapper.h
+++ b/include/linux/device-mapper.h
@@ -187,26 +187,26 @@ struct dm_target {
uint32_t max_io_len;
/*
- * A number of zero-length barrier requests that will be submitted
+ * A number of zero-length barrier bios that will be submitted
* to the target for the purpose of flushing cache.
*
- * The request number can be accessed with dm_bio_get_target_request_nr.
- * It is a responsibility of the target driver to remap these requests
+ * The bio number can be accessed with dm_bio_get_target_bio_nr.
+ * It is a responsibility of the target driver to remap these bios
* to the real underlying devices.
*/
- unsigned num_flush_requests;
+ unsigned num_flush_bios;
/*
- * The number of discard requests that will be submitted to the target.
- * The request number can be accessed with dm_bio_get_target_request_nr.
+ * The number of discard bios that will be submitted to the target.
+ * The bio number can be accessed with dm_bio_get_target_bio_nr.
*/
- unsigned num_discard_requests;
+ unsigned num_discard_bios;
/*
- * The number of WRITE SAME requests that will be submitted to the target.
- * The request number can be accessed with dm_bio_get_target_request_nr.
+ * The number of WRITE SAME bios that will be submitted to the target.
+ * The bio number can be accessed with dm_bio_get_target_bio_nr.
*/
- unsigned num_write_same_requests;
+ unsigned num_write_same_bios;
/*
* The minimum number of extra bytes allocated in each bio for the
@@ -233,10 +233,10 @@ struct dm_target {
bool discards_supported:1;
/*
- * Set if the target required discard request to be split
+ * Set if the target required discard bios to be split
* on max_io_len boundary.
*/
- bool split_discard_requests:1;
+ bool split_discard_bios:1;
/*
* Set if this target does not return zeroes on discarded blocks.
@@ -261,7 +261,7 @@ struct dm_target_io {
struct dm_io *io;
struct dm_target *ti;
union map_info info;
- unsigned target_request_nr;
+ unsigned target_bio_nr;
struct bio clone;
};
@@ -275,9 +275,9 @@ static inline struct bio *dm_bio_from_per_bio_data(void *data, size_t data_size)
return (struct bio *)((char *)data + data_size + offsetof(struct dm_target_io, clone));
}
-static inline unsigned dm_bio_get_target_request_nr(const struct bio *bio)
+static inline unsigned dm_bio_get_target_bio_nr(const struct bio *bio)
{
- return container_of(bio, struct dm_target_io, clone)->target_request_nr;
+ return container_of(bio, struct dm_target_io, clone)->target_bio_nr;
}
int dm_register_target(struct target_type *t);