- Update DM core to directly call the map function for both the linear and stripe targets; which are provided by DM core. - Various updates to use new safer string functions. - Update DM core to respect REQ_NOWAIT flag in normal bios so that memory allocations are always attempted with GFP_NOWAIT. - Add Mikulas Patocka to MAINTAINERS as a DM maintainer! - Improve DM delay target's handling of short delays (< 50ms) by using a kthread to check expiration of IOs rather than timers and a wq. - Update the DM error target so that it works with zoned storage. This helps xfstests to provide proper IO error handling coverage when testing a filesystem with native zoned storage support. - Update both DM crypt and integrity targets to improve performance by using crypto_shash_digest() rather than init+update+final sequence. - Fix DM crypt target by backfilling missing memory allocation accounting for compound pages.