Or rather nice async discard support :) I have patches pending for XFS and for the upcoming NVMe target driver to submit discard requests without waiting for them in caller. This series has one patch to massively clean up the routines in blk-lib.c by using chained bios, and a second one to export the guts of blkdev_issue_discard so that callers can chain them even more (e.g. for range discards from NVMe DSM commands, or from the XFS transation commit code) and submit them with the callers own end_io handler instead of waiting for them. -- To unsubscribe from this list: send the line "unsubscribe linux-block" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
