aboutsummaryrefslogtreecommitdiff
path: root/include/linux/dax.h
diff options
context:
space:
mode:
authorMark Brown <broonie@kernel.org>2020-12-11 17:47:55 +0000
committerMark Brown <broonie@kernel.org>2020-12-11 17:47:55 +0000
commit031616c434db05ce766f76c62865f55698e0924f (patch)
tree7f29aa1ff3e7b51a8058cd570fb785c6e769b245 /include/linux/dax.h
parent064841ccfc49b2315dc0b797239862d3a343aa07 (diff)
parent85a7555575a0e48f9b73db310d0d762a08a46d63 (diff)
Merge remote-tracking branch 'asoc/for-5.10' into asoc-linus
Diffstat (limited to 'include/linux/dax.h')
-rw-r--r--include/linux/dax.h17
1 files changed, 15 insertions, 2 deletions
diff --git a/include/linux/dax.h b/include/linux/dax.h
index 43b39ab9de1a..b52f084aa643 100644
--- a/include/linux/dax.h
+++ b/include/linux/dax.h
@@ -149,6 +149,7 @@ int dax_writeback_mapping_range(struct address_space *mapping,
struct dax_device *dax_dev, struct writeback_control *wbc);
struct page *dax_layout_busy_page(struct address_space *mapping);
+struct page *dax_layout_busy_page_range(struct address_space *mapping, loff_t start, loff_t end);
dax_entry_t dax_lock_page(struct page *page);
void dax_unlock_page(struct page *page, dax_entry_t cookie);
#else
@@ -179,6 +180,11 @@ static inline struct page *dax_layout_busy_page(struct address_space *mapping)
return NULL;
}
+static inline struct page *dax_layout_busy_page_range(struct address_space *mapping, pgoff_t start, pgoff_t nr_pages)
+{
+ return NULL;
+}
+
static inline int dax_writeback_mapping_range(struct address_space *mapping,
struct dax_device *dax_dev, struct writeback_control *wbc)
{
@@ -231,11 +237,18 @@ vm_fault_t dax_finish_sync_fault(struct vm_fault *vmf,
int dax_delete_mapping_entry(struct address_space *mapping, pgoff_t index);
int dax_invalidate_mapping_entry_sync(struct address_space *mapping,
pgoff_t index);
-int dax_iomap_zero(loff_t pos, unsigned offset, unsigned size,
- struct iomap *iomap);
+s64 dax_iomap_zero(loff_t pos, u64 length, struct iomap *iomap);
static inline bool dax_mapping(struct address_space *mapping)
{
return mapping->host && IS_DAX(mapping->host);
}
+#ifdef CONFIG_DEV_DAX_HMEM_DEVICES
+void hmem_register_device(int target_nid, struct resource *r);
+#else
+static inline void hmem_register_device(int target_nid, struct resource *r)
+{
+}
+#endif
+
#endif