fs/btrfs/extent_io.c

95  * how many bytes are there before stripe/ordered extent boundary.
469 		btrfs_finish_ordered_extent(bbio->ordered, folio, start, len,
675 	/* Limit data write bios to the ordered boundary. */
677 		struct btrfs_ordered_extent *ordered;
679 		ordered = btrfs_lookup_ordered_extent(inode, file_offset);
680 		if (ordered) {
682 					ordered->file_offset +
683 					ordered->disk_num_bytes - file_offset);
684 			bbio->ordered = ordered;
731 		/* Cap to the current ordered extent boundary if there is one. */
756 		 * our ordered extent for writes into zoned devices.
758 		 * When len_to_oe_boundary is tracking an ordered extent, we
759 		 * trust the ordered extent code to align things properly, and
760 		 * the check above to cap our write to the ordered extent
768 		 * unless we're using it to track an ordered extent.
1058  * Check if we can skip waiting the @ordered extent covering the block at @fileoff.
1069  * Return false if we must wait for the ordered extent.
1072 				       struct btrfs_ordered_extent *ordered,
1119 				    ordered->file_offset + ordered->num_bytes) - cur;
1127 		*fileoff = ordered->file_offset + ordered->num_bytes;
1141 				    ordered->file_offset + ordered->num_bytes) - cur;
1168 				    struct btrfs_ordered_extent *ordered,
1171 	const u64 range_end = min(end, ordered->file_offset + ordered->num_bytes - 1);
1172 	u64 cur = max(start, ordered->file_offset);
1177 		can_skip = can_skip_one_ordered_range(inode, ordered, &cur);
1207 		struct btrfs_ordered_extent *ordered;
1209 		ordered = btrfs_lookup_ordered_range(inode, cur_pos,
1212 		 * No ordered extents in the range, and we hold the extent lock,
1215 		if (!ordered)
1219 		if (can_skip_ordered_extent(inode, ordered, start, end)) {
1220 			cur_pos = min(ordered->file_offset + ordered->num_bytes,
1222 			btrfs_put_ordered_extent(ordered);
1228 		btrfs_start_ordered_extent_nowriteback(ordered, start, end + 1 - start);
1229 		btrfs_put_ordered_extent(ordered);
1310  * Any allocated ordered extent range covering this folio will be marked
1333 	 * Any range covered by ordered extent must either be manually marked
1335 	 * ordered extent normally).
1337 	 * This records the end of ordered extent cleanup if we hit an error.
1465 	 * It's possible we had some ordered extents created before we hit
1634 			 * causing writeback without ordered extent.
1650 			 * Since there is no bio submitted to finish the ordered
2319 	 * We have to hold onto the inode so that ordered extents can do their
2321 	 * an ordered extent if the igrab() fails there and that is a huge pain
2473  * already been ran (aka, ordered extent inserted) and all pages are still
2645 	 * We can release the folio if it's locked only for ordered extent
2657 	 * nodatasum, delalloc new and finishing ordered bits. The delalloc new
2658 	 * bit will be cleared by ordered extent completion.