29 static int generic_remap_checks(struct file *file_in, loff_t pos_in,  in generic_remap_checks()
30 				struct file *file_out, loff_t pos_out,  in generic_remap_checks()
31 				loff_t *req_count, unsigned int remap_flags)  in generic_remap_checks()
37 	loff_t size_in, size_out;  in generic_remap_checks()
38 	loff_t bs = inode_out->i_sb->s_blocksize;  in generic_remap_checks()
100 static int remap_verify_area(struct file *file, loff_t pos, loff_t len,  in remap_verify_area()
108 	if (unlikely((loff_t) (pos + len) < 0))  in remap_verify_area()
112 		loff_t end = len ? pos + len - 1 : OFFSET_MAX;  in remap_verify_area()
137 				   loff_t pos_out,  in generic_remap_check_len()
138 				   loff_t *len,  in generic_remap_check_len()
142 	loff_t new_len = *len;  in generic_remap_check_len()
162 static struct page *vfs_dedupe_get_page(struct inode *inode, loff_t offset)  in vfs_dedupe_get_page()
203 static int vfs_dedupe_file_range_compare(struct inode *src, loff_t srcoff,  in vfs_dedupe_file_range_compare()
204 					 struct inode *dest, loff_t destoff,  in vfs_dedupe_file_range_compare()
205 					 loff_t len, bool *is_same)  in vfs_dedupe_file_range_compare()
207 	loff_t src_poff;  in vfs_dedupe_file_range_compare()
208 	loff_t dest_poff;  in vfs_dedupe_file_range_compare()
213 	loff_t cmp_len;  in vfs_dedupe_file_range_compare()
293 int generic_remap_file_range_prep(struct file *file_in, loff_t pos_in,  in generic_remap_file_range_prep()
294 				  struct file *file_out, loff_t pos_out,  in generic_remap_file_range_prep()
295 				  loff_t *len, unsigned int remap_flags)  in generic_remap_file_range_prep()
317 		loff_t isize = i_size_read(inode_in);  in generic_remap_file_range_prep()
376 loff_t do_clone_file_range(struct file *file_in, loff_t pos_in,  in do_clone_file_range()
377 			   struct file *file_out, loff_t pos_out,  in do_clone_file_range()
378 			   loff_t len, unsigned int remap_flags)  in do_clone_file_range()
380 	loff_t ret;  in do_clone_file_range()
418 loff_t vfs_clone_file_range(struct file *file_in, loff_t pos_in,  in vfs_clone_file_range()
419 			    struct file *file_out, loff_t pos_out,  in vfs_clone_file_range()
420 			    loff_t len, unsigned int remap_flags)  in vfs_clone_file_range()
422 	loff_t ret;  in vfs_clone_file_range()
447 loff_t vfs_dedupe_file_range_one(struct file *src_file, loff_t src_pos,  in vfs_dedupe_file_range_one()
448 				 struct file *dst_file, loff_t dst_pos,  in vfs_dedupe_file_range_one()
449 				 loff_t len, unsigned int remap_flags)  in vfs_dedupe_file_range_one()
451 	loff_t ret;  in vfs_dedupe_file_range_one()
503 	loff_t deduped;  in vfs_dedupe_file_range()