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-rw-r--r--include/linux/fs.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 019817a083a0..b67209948f1b 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1829,6 +1829,10 @@ extern int vfs_dedupe_file_range_compare(struct inode *src, loff_t srcoff,
loff_t len, bool *is_same);
extern int vfs_dedupe_file_range(struct file *file,
struct file_dedupe_range *same);
+extern int vfs_dedupe_file_range_one(struct file *src_file, loff_t src_pos,
+ struct file *dst_file, loff_t dst_pos,
+ u64 len);
+
struct super_operations {
struct inode *(*alloc_inode)(struct super_block *sb);