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authorLinus Torvalds <torvalds@linux-foundation.org>2021-09-09 11:39:57 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2021-09-09 11:39:57 -0700
commit2e5fd489a4e5fcc97b035c03ace724c1d481a4c1 (patch)
treede1705048e3d2c71c74b7547e149b2973ebb29e1 /include
parent4b105f4a256ae629522a7ed1611aba28fd282bd5 (diff)
parent3fc3725357414636d91be1558ce8b14f228b4bda (diff)
Merge tag 'libnvdimm-for-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull libnvdimm updates from Dan Williams: - Fix a race condition in the teardown path of raw mode pmem namespaces. - Cleanup the code that filesystems use to detect filesystem-dax capabilities of their underlying block device. * tag 'libnvdimm-for-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: dax: remove bdev_dax_supported xfs: factor out a xfs_buftarg_is_dax helper dax: stub out dax_supported for !CONFIG_FS_DAX dax: remove __generic_fsdax_supported dax: move the dax_read_lock() locking into dax_supported dax: mark dax_get_by_host static dm: use fs_dax_get_by_bdev instead of dax_get_by_host dax: stop using bdevname fsdax: improve the FS_DAX Kconfig description and help text libnvdimm/pmem: Fix crash triggered when I/O in-flight during unbind
Diffstat (limited to 'include')
-rw-r--r--include/linux/dax.h41
1 files changed, 7 insertions, 34 deletions
diff --git a/include/linux/dax.h b/include/linux/dax.h
index b52f084aa643..2619d94c308d 100644
--- a/include/linux/dax.h
+++ b/include/linux/dax.h
@@ -41,7 +41,6 @@ struct dax_operations {
extern struct attribute_group dax_attribute_group;
#if IS_ENABLED(CONFIG_DAX)
-struct dax_device *dax_get_by_host(const char *host);
struct dax_device *alloc_dax(void *private, const char *host,
const struct dax_operations *ops, unsigned long flags);
void put_dax(struct dax_device *dax_dev);
@@ -58,8 +57,6 @@ static inline void set_dax_synchronous(struct dax_device *dax_dev)
{
__set_dax_synchronous(dax_dev);
}
-bool dax_supported(struct dax_device *dax_dev, struct block_device *bdev,
- int blocksize, sector_t start, sector_t len);
/*
* Check if given mapping is supported by the file / underlying device.
*/
@@ -73,10 +70,6 @@ static inline bool daxdev_mapping_supported(struct vm_area_struct *vma,
return dax_synchronous(dax_dev);
}
#else
-static inline struct dax_device *dax_get_by_host(const char *host)
-{
- return NULL;
-}
static inline struct dax_device *alloc_dax(void *private, const char *host,
const struct dax_operations *ops, unsigned long flags)
{
@@ -106,12 +99,6 @@ static inline bool dax_synchronous(struct dax_device *dax_dev)
static inline void set_dax_synchronous(struct dax_device *dax_dev)
{
}
-static inline bool dax_supported(struct dax_device *dax_dev,
- struct block_device *bdev, int blocksize, sector_t start,
- sector_t len)
-{
- return false;
-}
static inline bool daxdev_mapping_supported(struct vm_area_struct *vma,
struct dax_device *dax_dev)
{
@@ -122,22 +109,12 @@ static inline bool daxdev_mapping_supported(struct vm_area_struct *vma,
struct writeback_control;
int bdev_dax_pgoff(struct block_device *, sector_t, size_t, pgoff_t *pgoff);
#if IS_ENABLED(CONFIG_FS_DAX)
-bool __bdev_dax_supported(struct block_device *bdev, int blocksize);
-static inline bool bdev_dax_supported(struct block_device *bdev, int blocksize)
-{
- return __bdev_dax_supported(bdev, blocksize);
-}
-
-bool __generic_fsdax_supported(struct dax_device *dax_dev,
+bool generic_fsdax_supported(struct dax_device *dax_dev,
struct block_device *bdev, int blocksize, sector_t start,
sector_t sectors);
-static inline bool generic_fsdax_supported(struct dax_device *dax_dev,
- struct block_device *bdev, int blocksize, sector_t start,
- sector_t sectors)
-{
- return __generic_fsdax_supported(dax_dev, bdev, blocksize, start,
- sectors);
-}
+
+bool dax_supported(struct dax_device *dax_dev, struct block_device *bdev,
+ int blocksize, sector_t start, sector_t len);
static inline void fs_put_dax(struct dax_device *dax_dev)
{
@@ -153,15 +130,11 @@ struct page *dax_layout_busy_page_range(struct address_space *mapping, loff_t st
dax_entry_t dax_lock_page(struct page *page);
void dax_unlock_page(struct page *page, dax_entry_t cookie);
#else
-static inline bool bdev_dax_supported(struct block_device *bdev,
- int blocksize)
-{
- return false;
-}
+#define generic_fsdax_supported NULL
-static inline bool generic_fsdax_supported(struct dax_device *dax_dev,
+static inline bool dax_supported(struct dax_device *dax_dev,
struct block_device *bdev, int blocksize, sector_t start,
- sector_t sectors)
+ sector_t len)
{
return false;
}