125 static void ext4_release_io_end(ext4_io_end_t *io_end)  in ext4_release_io_end()  argument
129 	BUG_ON(!list_empty(&io_end->list));  in ext4_release_io_end()
130 	BUG_ON(io_end->flag & EXT4_IO_END_UNWRITTEN);  in ext4_release_io_end()
131 	WARN_ON(io_end->handle);  in ext4_release_io_end()
133 	if (atomic_dec_and_test(&EXT4_I(io_end->inode)->i_ioend_count))  in ext4_release_io_end()
134 		wake_up_all(ext4_ioend_wq(io_end->inode));  in ext4_release_io_end()
136 	for (bio = io_end->bio; bio; bio = next_bio) {  in ext4_release_io_end()
141 	kmem_cache_free(io_end_cachep, io_end);  in ext4_release_io_end()
144 static void ext4_clear_io_unwritten_flag(ext4_io_end_t *io_end)  in ext4_clear_io_unwritten_flag()  argument
146 	struct inode *inode = io_end->inode;  in ext4_clear_io_unwritten_flag()
148 	io_end->flag &= ~EXT4_IO_END_UNWRITTEN;  in ext4_clear_io_unwritten_flag()
212 static void ext4_add_complete_io(ext4_io_end_t *io_end)  in ext4_add_complete_io()  argument
214 	struct ext4_inode_info *ei = EXT4_I(io_end->inode);  in ext4_add_complete_io()
215 	struct ext4_sb_info *sbi = EXT4_SB(io_end->inode->i_sb);  in ext4_add_complete_io()
220 	WARN_ON(!(io_end->flag & EXT4_IO_END_UNWRITTEN));  in ext4_add_complete_io()
221 	WARN_ON(!io_end->handle && sbi->s_journal);  in ext4_add_complete_io()
226 	list_add_tail(&io_end->list, &ei->i_rsv_conversion_list);  in ext4_add_complete_io()
278 void ext4_put_io_end_defer(ext4_io_end_t *io_end)  in ext4_put_io_end_defer()  argument
280 	if (atomic_dec_and_test(&io_end->count)) {  in ext4_put_io_end_defer()
281 		if (!(io_end->flag & EXT4_IO_END_UNWRITTEN) || !io_end->size) {  in ext4_put_io_end_defer()
282 			ext4_release_io_end(io_end);  in ext4_put_io_end_defer()
285 		ext4_add_complete_io(io_end);  in ext4_put_io_end_defer()
289 int ext4_put_io_end(ext4_io_end_t *io_end)  in ext4_put_io_end()  argument
293 	if (atomic_dec_and_test(&io_end->count)) {  in ext4_put_io_end()
294 		if (io_end->flag & EXT4_IO_END_UNWRITTEN) {  in ext4_put_io_end()
295 			err = ext4_convert_unwritten_extents(io_end->handle,  in ext4_put_io_end()
296 						io_end->inode, io_end->offset,  in ext4_put_io_end()
297 						io_end->size);  in ext4_put_io_end()
298 			io_end->handle = NULL;  in ext4_put_io_end()
299 			ext4_clear_io_unwritten_flag(io_end);  in ext4_put_io_end()
301 		ext4_release_io_end(io_end);  in ext4_put_io_end()
306 ext4_io_end_t *ext4_get_io_end(ext4_io_end_t *io_end)  in ext4_get_io_end()  argument
308 	atomic_inc(&io_end->count);  in ext4_get_io_end()
309 	return io_end;  in ext4_get_io_end()
315 	ext4_io_end_t *io_end = bio->bi_private;  in ext4_end_bio()  local
318 	BUG_ON(!io_end);  in ext4_end_bio()
324 		struct inode *inode = io_end->inode;  in ext4_end_bio()
329 			     (unsigned long long) io_end->offset,  in ext4_end_bio()
330 			     (long) io_end->size,  in ext4_end_bio()
336 	if (io_end->flag & EXT4_IO_END_UNWRITTEN) {  in ext4_end_bio()
342 		bio->bi_private = xchg(&io_end->bio, bio);  in ext4_end_bio()
343 		ext4_put_io_end_defer(io_end);  in ext4_end_bio()
349 		ext4_put_io_end_defer(io_end);  in ext4_end_bio()
373 	io->io_end = NULL;  in ext4_io_submit_init()
388 	bio->bi_private = ext4_get_io_end(io->io_end);  in io_submit_init_bio()