31 static int generic_remap_checks(struct file *file_in, loff_t pos_in,  in generic_remap_checks()
32 				struct file *file_out, loff_t pos_out,  in generic_remap_checks()
33 				loff_t *req_count, unsigned int remap_flags)  in generic_remap_checks()
39 	loff_t size_in, size_out;  in generic_remap_checks()
40 	loff_t bs = inode_out->i_sb->s_blocksize;  in generic_remap_checks()
102 static int remap_verify_area(struct file *file, loff_t pos, loff_t len,  in remap_verify_area()
105 	loff_t tmp;  in remap_verify_area()
129 				   loff_t pos_out,  in generic_remap_check_len()
130 				   loff_t *len,  in generic_remap_check_len()
134 	loff_t new_len = *len;  in generic_remap_check_len()
154 static struct folio *vfs_dedupe_get_folio(struct file *file, loff_t pos)  in vfs_dedupe_get_folio()
186 static int vfs_dedupe_file_range_compare(struct file *src, loff_t srcoff,  in vfs_dedupe_file_range_compare()
187 					 struct file *dest, loff_t dstoff,  in vfs_dedupe_file_range_compare()
188 					 loff_t len, bool *is_same)  in vfs_dedupe_file_range_compare()
196 		loff_t cmp_len = min(PAGE_SIZE - offset_in_page(srcoff),  in vfs_dedupe_file_range_compare()
271 __generic_remap_file_range_prep(struct file *file_in, loff_t pos_in,  in __generic_remap_file_range_prep()
272 				struct file *file_out, loff_t pos_out,  in __generic_remap_file_range_prep()
273 				loff_t *len, unsigned int remap_flags,  in __generic_remap_file_range_prep()
296 		loff_t isize = i_size_read(inode_in);  in __generic_remap_file_range_prep()
361 int generic_remap_file_range_prep(struct file *file_in, loff_t pos_in,  in generic_remap_file_range_prep()
362 				  struct file *file_out, loff_t pos_out,  in generic_remap_file_range_prep()
363 				  loff_t *len, unsigned int remap_flags)  in generic_remap_file_range_prep()
370 loff_t do_clone_file_range(struct file *file_in, loff_t pos_in,  in do_clone_file_range()
371 			   struct file *file_out, loff_t pos_out,  in do_clone_file_range()
372 			   loff_t len, unsigned int remap_flags)  in do_clone_file_range()
374 	loff_t ret;  in do_clone_file_range()
407 loff_t vfs_clone_file_range(struct file *file_in, loff_t pos_in,  in vfs_clone_file_range()
408 			    struct file *file_out, loff_t pos_out,  in vfs_clone_file_range()
409 			    loff_t len, unsigned int remap_flags)  in vfs_clone_file_range()
411 	loff_t ret;  in vfs_clone_file_range()
439 loff_t vfs_dedupe_file_range_one(struct file *src_file, loff_t src_pos,  in vfs_dedupe_file_range_one()
440 				 struct file *dst_file, loff_t dst_pos,  in vfs_dedupe_file_range_one()
441 				 loff_t len, unsigned int remap_flags)  in vfs_dedupe_file_range_one()
443 	loff_t ret;  in vfs_dedupe_file_range_one()
503 	loff_t deduped;  in vfs_dedupe_file_range()