K 10
svn:author
V 3
kib
K 8
svn:date
V 27
2017-05-27T17:00:30.387309Z
K 7
svn:log
V 643
Use whole mnt_stat.f_fsid bits for st_dev.

Since ino64 expanded dev_t to 64bit, make VOP_GETATTR(9) provide all
bits of mnt_stat.f_fsid as va_fsid for vnodes on filesystems which use
f_fsid.  In particular, NFSv3 and sometimes NFSv4, and ZFS use this
method or reporting st_dev by stat(2).

Provide a new helper vn_fsid() to avoid duplicating code to copy
f_fsid to va_fsid.

Note that the change is mostly cosmetic.  Its motivation is to avoid
sign-extension of f_fsid[0] into 64bit dev_t value which happens after
dev_t becomes 64bit..

Reviewed by:	avg(zfs), rmacklem (nfs) (both for previous version)
Sponsored by:	The FreeBSD Foundation

END