aboutsummaryrefslogtreecommitdiff
path: root/drivers/md
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/md')
-rw-r--r--drivers/md/dm-linear.c20
-rw-r--r--drivers/md/dm-log-writes.c80
-rw-r--r--drivers/md/dm-stripe.c20
-rw-r--r--drivers/md/dm.c52
4 files changed, 2 insertions, 170 deletions
diff --git a/drivers/md/dm-linear.c b/drivers/md/dm-linear.c
index 90de42f6743a..1b97a11d7151 100644
--- a/drivers/md/dm-linear.c
+++ b/drivers/md/dm-linear.c
@@ -180,22 +180,6 @@ static long linear_dax_direct_access(struct dm_target *ti, pgoff_t pgoff,
return dax_direct_access(dax_dev, pgoff, nr_pages, kaddr, pfn);
}
-static size_t linear_dax_copy_from_iter(struct dm_target *ti, pgoff_t pgoff,
- void *addr, size_t bytes, struct iov_iter *i)
-{
- struct dax_device *dax_dev = linear_dax_pgoff(ti, &pgoff);
-
- return dax_copy_from_iter(dax_dev, pgoff, addr, bytes, i);
-}
-
-static size_t linear_dax_copy_to_iter(struct dm_target *ti, pgoff_t pgoff,
- void *addr, size_t bytes, struct iov_iter *i)
-{
- struct dax_device *dax_dev = linear_dax_pgoff(ti, &pgoff);
-
- return dax_copy_to_iter(dax_dev, pgoff, addr, bytes, i);
-}
-
static int linear_dax_zero_page_range(struct dm_target *ti, pgoff_t pgoff,
size_t nr_pages)
{
@@ -206,8 +190,6 @@ static int linear_dax_zero_page_range(struct dm_target *ti, pgoff_t pgoff,
#else
#define linear_dax_direct_access NULL
-#define linear_dax_copy_from_iter NULL
-#define linear_dax_copy_to_iter NULL
#define linear_dax_zero_page_range NULL
#endif
@@ -225,8 +207,6 @@ static struct target_type linear_target = {
.prepare_ioctl = linear_prepare_ioctl,
.iterate_devices = linear_iterate_devices,
.direct_access = linear_dax_direct_access,
- .dax_copy_from_iter = linear_dax_copy_from_iter,
- .dax_copy_to_iter = linear_dax_copy_to_iter,
.dax_zero_page_range = linear_dax_zero_page_range,
};
diff --git a/drivers/md/dm-log-writes.c b/drivers/md/dm-log-writes.c
index cdb22e7a1d0d..139b09b06eda 100644
--- a/drivers/md/dm-log-writes.c
+++ b/drivers/md/dm-log-writes.c
@@ -902,51 +902,6 @@ static void log_writes_io_hints(struct dm_target *ti, struct queue_limits *limit
}
#if IS_ENABLED(CONFIG_FS_DAX)
-static int log_dax(struct log_writes_c *lc, sector_t sector, size_t bytes,
- struct iov_iter *i)
-{
- struct pending_block *block;
-
- if (!bytes)
- return 0;
-
- block = kzalloc(sizeof(struct pending_block), GFP_KERNEL);
- if (!block) {
- DMERR("Error allocating dax pending block");
- return -ENOMEM;
- }
-
- block->data = kzalloc(bytes, GFP_KERNEL);
- if (!block->data) {
- DMERR("Error allocating dax data space");
- kfree(block);
- return -ENOMEM;
- }
-
- /* write data provided via the iterator */
- if (!copy_from_iter(block->data, bytes, i)) {
- DMERR("Error copying dax data");
- kfree(block->data);
- kfree(block);
- return -EIO;
- }
-
- /* rewind the iterator so that the block driver can use it */
- iov_iter_revert(i, bytes);
-
- block->datalen = bytes;
- block->sector = bio_to_dev_sectors(lc, sector);
- block->nr_sectors = ALIGN(bytes, lc->sectorsize) >> lc->sectorshift;
-
- atomic_inc(&lc->pending_blocks);
- spin_lock_irq(&lc->blocks_lock);
- list_add_tail(&block->list, &lc->unflushed_blocks);
- spin_unlock_irq(&lc->blocks_lock);
- wake_up_process(lc->log_kthread);
-
- return 0;
-}
-
static struct dax_device *log_writes_dax_pgoff(struct dm_target *ti,
pgoff_t *pgoff)
{
@@ -964,37 +919,6 @@ static long log_writes_dax_direct_access(struct dm_target *ti, pgoff_t pgoff,
return dax_direct_access(dax_dev, pgoff, nr_pages, kaddr, pfn);
}
-static size_t log_writes_dax_copy_from_iter(struct dm_target *ti,
- pgoff_t pgoff, void *addr, size_t bytes,
- struct iov_iter *i)
-{
- struct log_writes_c *lc = ti->private;
- sector_t sector = pgoff * PAGE_SECTORS;
- struct dax_device *dax_dev = log_writes_dax_pgoff(ti, &pgoff);
- int err;
-
- /* Don't bother doing anything if logging has been disabled */
- if (!lc->logging_enabled)
- goto dax_copy;
-
- err = log_dax(lc, sector, bytes, i);
- if (err) {
- DMWARN("Error %d logging DAX write", err);
- return 0;
- }
-dax_copy:
- return dax_copy_from_iter(dax_dev, pgoff, addr, bytes, i);
-}
-
-static size_t log_writes_dax_copy_to_iter(struct dm_target *ti,
- pgoff_t pgoff, void *addr, size_t bytes,
- struct iov_iter *i)
-{
- struct dax_device *dax_dev = log_writes_dax_pgoff(ti, &pgoff);
-
- return dax_copy_to_iter(dax_dev, pgoff, addr, bytes, i);
-}
-
static int log_writes_dax_zero_page_range(struct dm_target *ti, pgoff_t pgoff,
size_t nr_pages)
{
@@ -1005,8 +929,6 @@ static int log_writes_dax_zero_page_range(struct dm_target *ti, pgoff_t pgoff,
#else
#define log_writes_dax_direct_access NULL
-#define log_writes_dax_copy_from_iter NULL
-#define log_writes_dax_copy_to_iter NULL
#define log_writes_dax_zero_page_range NULL
#endif
@@ -1024,8 +946,6 @@ static struct target_type log_writes_target = {
.iterate_devices = log_writes_iterate_devices,
.io_hints = log_writes_io_hints,
.direct_access = log_writes_dax_direct_access,
- .dax_copy_from_iter = log_writes_dax_copy_from_iter,
- .dax_copy_to_iter = log_writes_dax_copy_to_iter,
.dax_zero_page_range = log_writes_dax_zero_page_range,
};
diff --git a/drivers/md/dm-stripe.c b/drivers/md/dm-stripe.c
index 50dba3f39274..e566115ec0bb 100644
--- a/drivers/md/dm-stripe.c
+++ b/drivers/md/dm-stripe.c
@@ -324,22 +324,6 @@ static long stripe_dax_direct_access(struct dm_target *ti, pgoff_t pgoff,
return dax_direct_access(dax_dev, pgoff, nr_pages, kaddr, pfn);
}
-static size_t stripe_dax_copy_from_iter(struct dm_target *ti, pgoff_t pgoff,
- void *addr, size_t bytes, struct iov_iter *i)
-{
- struct dax_device *dax_dev = stripe_dax_pgoff(ti, &pgoff);
-
- return dax_copy_from_iter(dax_dev, pgoff, addr, bytes, i);
-}
-
-static size_t stripe_dax_copy_to_iter(struct dm_target *ti, pgoff_t pgoff,
- void *addr, size_t bytes, struct iov_iter *i)
-{
- struct dax_device *dax_dev = stripe_dax_pgoff(ti, &pgoff);
-
- return dax_copy_to_iter(dax_dev, pgoff, addr, bytes, i);
-}
-
static int stripe_dax_zero_page_range(struct dm_target *ti, pgoff_t pgoff,
size_t nr_pages)
{
@@ -350,8 +334,6 @@ static int stripe_dax_zero_page_range(struct dm_target *ti, pgoff_t pgoff,
#else
#define stripe_dax_direct_access NULL
-#define stripe_dax_copy_from_iter NULL
-#define stripe_dax_copy_to_iter NULL
#define stripe_dax_zero_page_range NULL
#endif
@@ -488,8 +470,6 @@ static struct target_type stripe_target = {
.iterate_devices = stripe_iterate_devices,
.io_hints = stripe_io_hints,
.direct_access = stripe_dax_direct_access,
- .dax_copy_from_iter = stripe_dax_copy_from_iter,
- .dax_copy_to_iter = stripe_dax_copy_to_iter,
.dax_zero_page_range = stripe_dax_zero_page_range,
};
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index f4b972af1092..ce250bd274f3 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -1027,54 +1027,6 @@ static long dm_dax_direct_access(struct dax_device *dax_dev, pgoff_t pgoff,
return ret;
}
-static size_t dm_dax_copy_from_iter(struct dax_device *dax_dev, pgoff_t pgoff,
- void *addr, size_t bytes, struct iov_iter *i)
-{
- struct mapped_device *md = dax_get_private(dax_dev);
- sector_t sector = pgoff * PAGE_SECTORS;
- struct dm_target *ti;
- long ret = 0;
- int srcu_idx;
-
- ti = dm_dax_get_live_target(md, sector, &srcu_idx);
-
- if (!ti)
- goto out;
- if (!ti->type->dax_copy_from_iter) {
- ret = copy_from_iter(addr, bytes, i);
- goto out;
- }
- ret = ti->type->dax_copy_from_iter(ti, pgoff, addr, bytes, i);
- out:
- dm_put_live_table(md, srcu_idx);
-
- return ret;
-}
-
-static size_t dm_dax_copy_to_iter(struct dax_device *dax_dev, pgoff_t pgoff,
- void *addr, size_t bytes, struct iov_iter *i)
-{
- struct mapped_device *md = dax_get_private(dax_dev);
- sector_t sector = pgoff * PAGE_SECTORS;
- struct dm_target *ti;
- long ret = 0;
- int srcu_idx;
-
- ti = dm_dax_get_live_target(md, sector, &srcu_idx);
-
- if (!ti)
- goto out;
- if (!ti->type->dax_copy_to_iter) {
- ret = copy_to_iter(addr, bytes, i);
- goto out;
- }
- ret = ti->type->dax_copy_to_iter(ti, pgoff, addr, bytes, i);
- out:
- dm_put_live_table(md, srcu_idx);
-
- return ret;
-}
-
static int dm_dax_zero_page_range(struct dax_device *dax_dev, pgoff_t pgoff,
size_t nr_pages)
{
@@ -1770,6 +1722,8 @@ static struct mapped_device *alloc_dev(int minor)
md->dax_dev = NULL;
goto bad;
}
+ set_dax_nocache(md->dax_dev);
+ set_dax_nomc(md->dax_dev);
if (dax_add_host(md->dax_dev, md->disk))
goto bad;
}
@@ -3024,8 +2978,6 @@ static const struct block_device_operations dm_rq_blk_dops = {
static const struct dax_operations dm_dax_ops = {
.direct_access = dm_dax_direct_access,
- .copy_from_iter = dm_dax_copy_from_iter,
- .copy_to_iter = dm_dax_copy_to_iter,
.zero_page_range = dm_dax_zero_page_range,
};
generated by cgit v1.2.3 (git 2.39.1) at 2024-10-23 22:35:06 +0000