03311f117b
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
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