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FreeBSD: Fix a pair of bugs in zfs_fhtovp()
- Add a zfs_exit() call in an error path, otherwise a lock is leaked.
- Remove the fid_gen > 1 check. That appears to be Linux-specific:
zfsctl_snapdir_fid() sets fid_gen to 0 or 1 depending on whether the
snapshot directory is mounted. On FreeBSD it fails, making snapshot
dirs inaccessible via NFS.
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Reviewed-by: Andriy Gapon <avg@FreeBSD.org>
Signed-off-by: Mark Johnston <markj@FreeBSD.org>
Fixes: 43dbf88178
("FreeBSD: vfsops: use setgen for error case")
Closes #14001
Closes #13974
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@ -1818,7 +1818,8 @@ zfs_fhtovp(vfs_t *vfsp, fid_t *fidp, int flags, vnode_t **vpp)
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return (SET_ERROR(EINVAL));
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}
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if (fidp->fid_len == LONG_FID_LEN && (fid_gen > 1 || setgen != 0)) {
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if (fidp->fid_len == LONG_FID_LEN && setgen != 0) {
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zfs_exit(zfsvfs, FTAG);
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dprintf("snapdir fid: fid_gen (%llu) and setgen (%llu)\n",
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(u_longlong_t)fid_gen, (u_longlong_t)setgen);
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return (SET_ERROR(EINVAL));
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