CVS commit: src/external/cddl/osnet/dist/uts/common/fs/zfs/sys

["Taylor R Campbell" <riastradh%netbsd.org@localhost>]

Module Name:    src
Committed By:   riastradh
Date:           Tue Dec 28 17:51:23 UTC 2021

Modified Files:
        src/external/cddl/osnet/dist/uts/common/fs/zfs/sys: zfs_context.h

Log Message:
zfs: Expose hostid to zfs, as in gethostid/sethostid(3).

If set to nonzero, the hostid is recorded in the metadata of a zpool,
and checked by `zpool import' when the pool has not been explicitly
exported.  After reboot, zpool import will not need `-f' to reimport
the pool.

Setting the hostid must be done explicitly through sysctl (or the
sethostid(3) library call) on all ports except acorn32, amiga,
mvme68k, newsmips, sparc, sparc64, sun2, and sun3.  So for most users
this change will have no immediate effect.  But you can obviate the
need for `zpool import -f' by adding `kern.hostid=123456789' to
/etc/sysctl.conf and importing the pool one last time with `-f'.


To generate a diff of this commit:
cvs rdiff -u -r1.3 -r1.4 \
    src/external/cddl/osnet/dist/uts/common/fs/zfs/sys/zfs_context.h

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.