Remove the thread argument from the FSD (File-System Dependent) parts of

the VFS.  Now all the VFS_* functions and relating parts don't want the
context as long as it always refers to curthread.

In some points, in particular when dealing with VOPs and functions living
in the same namespace (eg. vflush) which still need to be converted,
pass curthread explicitly in order to retain the old behaviour.
Such loose ends will be fixed ASAP.

While here fix a bug: now, UFS_EXTATTR can be compiled alone without the
UFS_EXTATTR_AUTOSTART option.

VFS KPI is heavilly changed by this commit so thirdy parts modules needs
to be recompiled.  Bump __FreeBSD_version in order to signal such
situation.

1 files changed, 12 insertions, 17 deletions

diff --git a/sys/gnu/fs/xfs/FreeBSD/xfs_mountops.c b/sys/gnu/fs/xfs/FreeBSD/xfs_mountops.c
index 1374fa55c3c7..f89618e93d02 100644
--- a/sys/gnu/fs/xfs/FreeBSD/xfs_mountops.c
+++ b/sys/gnu/fs/xfs/FreeBSD/xfs_mountops.c
@@ -180,8 +180,7 @@ _xfs_param_copyin(struct mount *mp, struct thread *td)
 }
 
 static int
-_xfs_mount(struct mount		*mp,
-	   struct thread	*td)
+_xfs_mount(struct mount		*mp)
 {
 	struct xfsmount		*xmp;
 	struct xfs_vnode	*rootvp;
@@ -189,8 +188,10 @@ _xfs_mount(struct mount		*mp,
 	struct vnode		*rvp, *devvp;
 	struct cdev		*ddev;
 	struct g_consumer	*cp;
+	struct thread		*td;
 	int			error;
 	
+	td = curthread;
 	ddev = NULL;
 	cp = NULL;
 
@@ -229,7 +230,7 @@ _xfs_mount(struct mount		*mp,
         mp->mnt_stat.f_fsid.val[0] = dev2udev(ddev);
         mp->mnt_stat.f_fsid.val[1] = mp->mnt_vfc->vfc_typenum;
 
-        if ((error = VFS_STATFS(mp, &mp->mnt_stat, td)) != 0)
+        if ((error = VFS_STATFS(mp, &mp->mnt_stat)) != 0)
 		goto fail_unmount;
 
 	rvp = rootvp->v_vnode;
@@ -263,10 +264,9 @@ _xfs_mount(struct mount		*mp,
  * Free reference to null layer
  */
 static int
-_xfs_unmount(mp, mntflags, td)
+_xfs_unmount(mp, mntflags)
 	struct mount *mp;
 	int mntflags;
-	struct thread *td;
 {
 	struct vnode *devvp;
 	struct g_consumer *cp;
@@ -278,7 +278,7 @@ _xfs_unmount(mp, mntflags, td)
 	if (devvp != NULL)
 		cp = devvp->v_bufobj.bo_private;
 
-	XVFS_UNMOUNT(MNTTOVFS(mp), 0, td->td_ucred, error);
+	XVFS_UNMOUNT(MNTTOVFS(mp), 0, curthread->td_ucred, error);
 	if (error == 0) {
 		if (cp != NULL) {
 			DROP_GIANT();
@@ -292,11 +292,10 @@ _xfs_unmount(mp, mntflags, td)
 }
 
 static int
-_xfs_root(mp, flags, vpp, td)
+_xfs_root(mp, flags, vpp)
 	struct mount *mp;
 	int flags;
 	struct vnode **vpp;
-	struct thread *td;
 {
 	xfs_vnode_t *vp;
 	int error;
@@ -310,22 +309,20 @@ _xfs_root(mp, flags, vpp, td)
 }
 
 static int
-_xfs_quotactl(mp, cmd, uid, arg, td)
+_xfs_quotactl(mp, cmd, uid, arg)
 	struct mount *mp;
 	int cmd;
 	uid_t uid;
 	void *arg;
-	struct thread *td;
 {
 	printf("xfs_quotactl\n");
 	return EOPNOTSUPP;
 }
 
 static int
-_xfs_statfs(mp, sbp, td)
+_xfs_statfs(mp, sbp)
 	struct mount *mp;
 	struct statfs *sbp;
-	struct thread *td;
 {
 	int error;
 
@@ -340,10 +337,9 @@ _xfs_statfs(mp, sbp, td)
 }
 
 static int
-_xfs_sync(mp, waitfor, td)
+_xfs_sync(mp, waitfor)
 	struct mount *mp;
 	int waitfor;
-	struct thread *td;
 {
 	int error;
 	int flags = SYNC_FSDATA|SYNC_ATTR|SYNC_REFCACHE;
@@ -352,7 +348,7 @@ _xfs_sync(mp, waitfor, td)
 		flags |= SYNC_WAIT;
 	else if (waitfor == MNT_LAZY)
 		flags |= SYNC_BDFLUSH;
-        XVFS_SYNC(MNTTOVFS(mp), flags, td->td_ucred, error);
+        XVFS_SYNC(MNTTOVFS(mp), flags, curthread->td_ucred, error);
 	return (error);
 }
 
@@ -386,8 +382,7 @@ _xfs_fhtovp(mp, fidp, vpp)
 static int
 _xfs_extattrctl(struct mount *mp, int cm,
                 struct vnode *filename_v,
-                int attrnamespace, const char *attrname,
-                struct thread *td)
+                int attrnamespace, const char *attrname)
 {
 	printf("xfs_extattrctl\n");
 	return ENOSYS;