OpenZFS 2.1.0-rc4

Supported Platforms

• Linux: compatible with 3.10 - 5.11 kernels
• FreeBSD: compatible with releases starting from 12.2-RELEASE

Changes

• zed: protect against wait4()/fork() races to the launched process tree #11924 #11928
• Fixed incorrect man page reference in zfsprops(8) #11918
• etc/systemd/zfs-mount-generator: don't fail if no cached pools #11915
• freebsd/libshare: nfs: make nfs_is_shared() thread-safe #11886
• libshare: nfs: don't leak nfs_lock_fd when lock fails #11886
• ZTS: Improve redundancy test scripts #11906
• ICP: Silence objtool "stack pointer realignment" warnings #6950 #11914
• libzfs: refresh property cache after inheriting userprop #11064 #11911
• libzfs: don't mark prompt+raw as retriable #11031 #11911
• Combine zio caches if possible #11877
• contrib/dracut: 90: zfs-{rollback,snapshot}-bootfs: use sbindir #11898
• contrib/i-t: properly mount root's children with spaces #11898
• contrib/dracut: 90: mount essential datasets under root #11898
• contrib/dracut: 90: generator: only log to kmsg if debug set on cmdline #11898
• contrib/dracut: 02: don't spill device names across multiple lines #11898
• Fix crash in zio_done error reporting #11872 #11896
• zfs-send(8): Restore sorting of flags #11905
• linux/spl: proc: use global table_{min,max} values instead of local ones #11879
• linux/libspl: gethostid: read from /proc/sys/kernel/spl/hostid, simplify #11879
• linux/spl: base proc_dohostid() on proc_dostring() #11878 #11879
• ZFS traverse_visitbp optimization to limit prefetch #11802 #11803
• ZTS: add zed_fd_spill to verify the fds ZEDLETs inherit #11891
• zed: set O_CLOEXEC on persistent fds, remove closefrom() from pre-exec #11891
• Add SIGSTOP and SIGTSTP handling to issig #810 #10843 #11801
• Fix 'make checkbashisms` warnings #11902