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-rw-r--r--drivers/nvdimm/btt.c16
-rw-r--r--drivers/nvdimm/bus.c23
-rw-r--r--drivers/nvdimm/dax_devs.c2
-rw-r--r--drivers/nvdimm/dimm_devs.c7
-rw-r--r--drivers/nvdimm/nd-core.h11
-rw-r--r--drivers/nvdimm/nd.h4
-rw-r--r--drivers/nvdimm/pmem.c24
-rw-r--r--drivers/nvdimm/region_devs.c4
8 files changed, 36 insertions, 55 deletions
diff --git a/drivers/nvdimm/btt.c b/drivers/nvdimm/btt.c
index 0297b7882e33..d5593b0dc700 100644
--- a/drivers/nvdimm/btt.c
+++ b/drivers/nvdimm/btt.c
@@ -1482,20 +1482,6 @@ static void btt_submit_bio(struct bio *bio)
bio_endio(bio);
}
-static int btt_rw_page(struct block_device *bdev, sector_t sector,
- struct page *page, enum req_op op)
-{
- struct btt *btt = bdev->bd_disk->private_data;
- int rc;
-
- rc = btt_do_bvec(btt, NULL, page, thp_size(page), 0, op, sector);
- if (rc == 0)
- page_endio(page, op_is_write(op), 0);
-
- return rc;
-}
-
-
static int btt_getgeo(struct block_device *bd, struct hd_geometry *geo)
{
/* some standard values */
@@ -1508,7 +1494,6 @@ static int btt_getgeo(struct block_device *bd, struct hd_geometry *geo)
static const struct block_device_operations btt_fops = {
.owner = THIS_MODULE,
.submit_bio = btt_submit_bio,
- .rw_page = btt_rw_page,
.getgeo = btt_getgeo,
};
@@ -1530,6 +1515,7 @@ static int btt_blk_init(struct btt *btt)
blk_queue_logical_block_size(btt->btt_disk->queue, btt->sector_size);
blk_queue_max_hw_sectors(btt->btt_disk->queue, UINT_MAX);
blk_queue_flag_set(QUEUE_FLAG_NONROT, btt->btt_disk->queue);
+ blk_queue_flag_set(QUEUE_FLAG_SYNCHRONOUS, btt->btt_disk->queue);
if (btt_meta_size(btt)) {
rc = nd_integrity_init(btt->btt_disk, btt_meta_size(btt));
diff --git a/drivers/nvdimm/bus.c b/drivers/nvdimm/bus.c
index b38d0355b0ac..4976a0069e9c 100644
--- a/drivers/nvdimm/bus.c
+++ b/drivers/nvdimm/bus.c
@@ -28,7 +28,7 @@ static int nvdimm_bus_major;
struct class *nd_class;
static DEFINE_IDA(nd_ida);
-static int to_nd_device_type(struct device *dev)
+static int to_nd_device_type(const struct device *dev)
{
if (is_nvdimm(dev))
return ND_DEVICE_DIMM;
@@ -42,7 +42,7 @@ static int to_nd_device_type(struct device *dev)
return 0;
}
-static int nvdimm_bus_uevent(struct device *dev, struct kobj_uevent_env *env)
+static int nvdimm_bus_uevent(const struct device *dev, struct kobj_uevent_env *env)
{
return add_uevent_var(env, "MODALIAS=" ND_DEVICE_MODALIAS_FMT,
to_nd_device_type(dev));
@@ -508,7 +508,7 @@ static void nd_async_device_unregister(void *d, async_cookie_t cookie)
put_device(dev);
}
-void nd_device_register(struct device *dev)
+static void __nd_device_register(struct device *dev, bool sync)
{
if (!dev)
return;
@@ -531,11 +531,24 @@ void nd_device_register(struct device *dev)
}
get_device(dev);
- async_schedule_dev_domain(nd_async_device_register, dev,
- &nd_async_domain);
+ if (sync)
+ nd_async_device_register(dev, 0);
+ else
+ async_schedule_dev_domain(nd_async_device_register, dev,
+ &nd_async_domain);
+}
+
+void nd_device_register(struct device *dev)
+{
+ __nd_device_register(dev, false);
}
EXPORT_SYMBOL(nd_device_register);
+void nd_device_register_sync(struct device *dev)
+{
+ __nd_device_register(dev, true);
+}
+
void nd_device_unregister(struct device *dev, enum nd_async_mode mode)
{
bool killed;
diff --git a/drivers/nvdimm/dax_devs.c b/drivers/nvdimm/dax_devs.c
index 7f4a9d28b670..3bd61f245788 100644
--- a/drivers/nvdimm/dax_devs.c
+++ b/drivers/nvdimm/dax_devs.c
@@ -38,7 +38,7 @@ static const struct device_type nd_dax_device_type = {
.groups = nd_pfn_attribute_groups,
};
-bool is_nd_dax(struct device *dev)
+bool is_nd_dax(const struct device *dev)
{
return dev ? dev->type == &nd_dax_device_type : false;
}
diff --git a/drivers/nvdimm/dimm_devs.c b/drivers/nvdimm/dimm_devs.c
index 1fc081dcf631..957f7c3d17ba 100644
--- a/drivers/nvdimm/dimm_devs.c
+++ b/drivers/nvdimm/dimm_devs.c
@@ -572,7 +572,7 @@ static const struct device_type nvdimm_device_type = {
.groups = nvdimm_attribute_groups,
};
-bool is_nvdimm(struct device *dev)
+bool is_nvdimm(const struct device *dev)
{
return dev->type == &nvdimm_device_type;
}
@@ -624,7 +624,10 @@ struct nvdimm *__nvdimm_create(struct nvdimm_bus *nvdimm_bus,
nvdimm->sec.ext_flags = nvdimm_security_flags(nvdimm, NVDIMM_MASTER);
device_initialize(dev);
lockdep_set_class(&dev->mutex, &nvdimm_key);
- nd_device_register(dev);
+ if (test_bit(NDD_REGISTER_SYNC, &flags))
+ nd_device_register_sync(dev);
+ else
+ nd_device_register(dev);
return nvdimm;
}
diff --git a/drivers/nvdimm/nd-core.h b/drivers/nvdimm/nd-core.h
index cc86ee09d7c0..86976a9e8a15 100644
--- a/drivers/nvdimm/nd-core.h
+++ b/drivers/nvdimm/nd-core.h
@@ -82,14 +82,14 @@ static inline void nvdimm_security_overwrite_query(struct work_struct *work)
}
#endif
-bool is_nvdimm(struct device *dev);
-bool is_nd_pmem(struct device *dev);
-bool is_nd_volatile(struct device *dev);
-static inline bool is_nd_region(struct device *dev)
+bool is_nvdimm(const struct device *dev);
+bool is_nd_pmem(const struct device *dev);
+bool is_nd_volatile(const struct device *dev);
+static inline bool is_nd_region(const struct device *dev)
{
return is_nd_pmem(dev) || is_nd_volatile(dev);
}
-static inline bool is_memory(struct device *dev)
+static inline bool is_memory(const struct device *dev)
{
return is_nd_pmem(dev) || is_nd_volatile(dev);
}
@@ -107,6 +107,7 @@ int nvdimm_bus_create_ndctl(struct nvdimm_bus *nvdimm_bus);
void nvdimm_bus_destroy_ndctl(struct nvdimm_bus *nvdimm_bus);
void nd_synchronize(void);
void nd_device_register(struct device *dev);
+void nd_device_register_sync(struct device *dev);
struct nd_label_id;
char *nd_label_gen_id(struct nd_label_id *label_id, const uuid_t *uuid,
u32 flags);
diff --git a/drivers/nvdimm/nd.h b/drivers/nvdimm/nd.h
index ec5219680092..e8b9d27dbb3c 100644
--- a/drivers/nvdimm/nd.h
+++ b/drivers/nvdimm/nd.h
@@ -599,7 +599,7 @@ static inline int nd_pfn_validate(struct nd_pfn *nd_pfn, const char *sig)
struct nd_dax *to_nd_dax(struct device *dev);
#if IS_ENABLED(CONFIG_NVDIMM_DAX)
int nd_dax_probe(struct device *dev, struct nd_namespace_common *ndns);
-bool is_nd_dax(struct device *dev);
+bool is_nd_dax(const struct device *dev);
struct device *nd_dax_create(struct nd_region *nd_region);
#else
static inline int nd_dax_probe(struct device *dev,
@@ -608,7 +608,7 @@ static inline int nd_dax_probe(struct device *dev,
return -ENODEV;
}
-static inline bool is_nd_dax(struct device *dev)
+static inline bool is_nd_dax(const struct device *dev)
{
return false;
}
diff --git a/drivers/nvdimm/pmem.c b/drivers/nvdimm/pmem.c
index 96e6e9a5f235..ceea55f621cc 100644
--- a/drivers/nvdimm/pmem.c
+++ b/drivers/nvdimm/pmem.c
@@ -238,28 +238,6 @@ static void pmem_submit_bio(struct bio *bio)
bio_endio(bio);
}
-static int pmem_rw_page(struct block_device *bdev, sector_t sector,
- struct page *page, enum req_op op)
-{
- struct pmem_device *pmem = bdev->bd_disk->private_data;
- blk_status_t rc;
-
- if (op_is_write(op))
- rc = pmem_do_write(pmem, page, 0, sector, thp_size(page));
- else
- rc = pmem_do_read(pmem, page, 0, sector, thp_size(page));
- /*
- * The ->rw_page interface is subtle and tricky. The core
- * retries on any error, so we can only invoke page_endio() in
- * the successful completion case. Otherwise, we'll see crashes
- * caused by double completion.
- */
- if (rc == 0)
- page_endio(page, op_is_write(op), 0);
-
- return blk_status_to_errno(rc);
-}
-
/* see "strong" declaration in tools/testing/nvdimm/pmem-dax.c */
__weak long __pmem_direct_access(struct pmem_device *pmem, pgoff_t pgoff,
long nr_pages, enum dax_access_mode mode, void **kaddr,
@@ -310,7 +288,6 @@ __weak long __pmem_direct_access(struct pmem_device *pmem, pgoff_t pgoff,
static const struct block_device_operations pmem_fops = {
.owner = THIS_MODULE,
.submit_bio = pmem_submit_bio,
- .rw_page = pmem_rw_page,
};
static int pmem_dax_zero_page_range(struct dax_device *dax_dev, pgoff_t pgoff,
@@ -565,6 +542,7 @@ static int pmem_attach_disk(struct device *dev,
blk_queue_logical_block_size(q, pmem_sector_size(ndns));
blk_queue_max_hw_sectors(q, UINT_MAX);
blk_queue_flag_set(QUEUE_FLAG_NONROT, q);
+ blk_queue_flag_set(QUEUE_FLAG_SYNCHRONOUS, q);
if (pmem->pfn_flags & PFN_MAP)
blk_queue_flag_set(QUEUE_FLAG_DAX, q);
diff --git a/drivers/nvdimm/region_devs.c b/drivers/nvdimm/region_devs.c
index 83dbf398ea84..8f134d63af13 100644
--- a/drivers/nvdimm/region_devs.c
+++ b/drivers/nvdimm/region_devs.c
@@ -839,12 +839,12 @@ static const struct device_type nd_volatile_device_type = {
.groups = nd_region_attribute_groups,
};
-bool is_nd_pmem(struct device *dev)
+bool is_nd_pmem(const struct device *dev)
{
return dev ? dev->type == &nd_pmem_device_type : false;
}
-bool is_nd_volatile(struct device *dev)
+bool is_nd_volatile(const struct device *dev)
{
return dev ? dev->type == &nd_volatile_device_type : false;
}
generated by cgit (git 2.34.1) at 2024-06-02 15:10:14 +0000