93 static void buffer_io_error(struct buffer_head *bh)  in buffer_io_error()  argument
96 		       bh->b_bdev,  in buffer_io_error()
97 			(unsigned long long)bh->b_blocknr);  in buffer_io_error()
108 		struct buffer_head *bh, *head;  in ext4_finish_bio()  local
123 		bh = head = page_buffers(page);  in ext4_finish_bio()
130 			if (bh_offset(bh) < bio_start ||  in ext4_finish_bio()
131 			    bh_offset(bh) + bh->b_size > bio_end) {  in ext4_finish_bio()
132 				if (buffer_async_write(bh))  in ext4_finish_bio()
136 			clear_buffer_async_write(bh);  in ext4_finish_bio()
138 				set_buffer_write_io_error(bh);  in ext4_finish_bio()
139 				buffer_io_error(bh);  in ext4_finish_bio()
141 		} while ((bh = bh->b_this_page) != head);  in ext4_finish_bio()
395 			       struct buffer_head *bh)  in io_submit_init_bio()  argument
404 	fscrypt_set_bio_crypt_ctx_bh(bio, bh, GFP_NOIO);  in io_submit_init_bio()
405 	bio->bi_iter.bi_sector = bh->b_blocknr * (bh->b_size >> 9);  in io_submit_init_bio()
406 	bio_set_dev(bio, bh->b_bdev);  in io_submit_init_bio()
410 	io->io_next_block = bh->b_blocknr;  in io_submit_init_bio()
418 			     struct buffer_head *bh)  in io_submit_add_bh()  argument
422 	if (io->io_bio && (bh->b_blocknr != io->io_next_block ||  in io_submit_add_bh()
423 			   !fscrypt_mergeable_bio_bh(io->io_bio, bh))) {  in io_submit_add_bh()
428 		io_submit_init_bio(io, bh);  in io_submit_add_bh()
432 			   bh->b_size, bh_offset(bh));  in io_submit_add_bh()
433 	if (ret != bh->b_size)  in io_submit_add_bh()
435 	wbc_account_cgroup_owner(io->io_wbc, pagecache_page, bh->b_size);  in io_submit_add_bh()
447 	struct buffer_head *bh, *head;  in ext4_bio_write_page()  local
480 	bh = head = page_buffers(page);  in ext4_bio_write_page()
482 		block_start = bh_offset(bh);  in ext4_bio_write_page()
484 			clear_buffer_dirty(bh);  in ext4_bio_write_page()
485 			set_buffer_uptodate(bh);  in ext4_bio_write_page()
488 		if (!buffer_dirty(bh) || buffer_delay(bh) ||  in ext4_bio_write_page()
489 		    !buffer_mapped(bh) || buffer_unwritten(bh)) {  in ext4_bio_write_page()
491 			if (!buffer_mapped(bh))  in ext4_bio_write_page()
492 				clear_buffer_dirty(bh);  in ext4_bio_write_page()
497 		if (buffer_new(bh))  in ext4_bio_write_page()
498 			clear_buffer_new(bh);  in ext4_bio_write_page()
499 		set_buffer_async_write(bh);  in ext4_bio_write_page()
501 	} while ((bh = bh->b_this_page) != head);  in ext4_bio_write_page()
503 	bh = head = page_buffers(page);  in ext4_bio_write_page()
542 				clear_buffer_async_write(bh);  in ext4_bio_write_page()
543 				bh = bh->b_this_page;  in ext4_bio_write_page()
544 			} while (bh != head);  in ext4_bio_write_page()
551 		if (!buffer_async_write(bh))  in ext4_bio_write_page()
553 		io_submit_add_bh(io, inode, page, bounce_page, bh);  in ext4_bio_write_page()
555 		clear_buffer_dirty(bh);  in ext4_bio_write_page()
556 	} while ((bh = bh->b_this_page) != head);  in ext4_bio_write_page()