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, 11 insertions, 12 deletions

diff --git a/sys/gnu/fs/ext2fs/ext2_vfsops.c b/sys/gnu/fs/ext2fs/ext2_vfsops.c
index 5f4a84a..c8d79fb 100644
--- a/sys/gnu/fs/ext2fs/ext2_vfsops.c
+++ b/sys/gnu/fs/ext2fs/ext2_vfsops.c
@@ -127,12 +127,12 @@ static const char *ext2_opts[] = { "from", "export", "acls", "noexec",
  * mount system call
  */
 static int
-ext2_mount(mp, td)
+ext2_mount(mp)
 	struct mount *mp;
-	struct thread *td;
 {
 	struct vfsoptlist *opts;
 	struct vnode *devvp;
+	struct thread *td;
 	struct ext2mount *ump = 0;
 	struct ext2_sb_info *fs;
 	char *path, *fspec;
@@ -140,6 +140,7 @@ ext2_mount(mp, td)
 	accmode_t accmode;
 	struct nameidata nd, *ndp = &nd;
 
+	td = curthread;
 	opts = mp->mnt_optnew;
 
 	if (vfs_filteropt(opts, ext2_opts))
@@ -165,7 +166,7 @@ ext2_mount(mp, td)
 		error = 0;
 		if (fs->s_rd_only == 0 &&
 		    vfs_flagopt(opts, "ro", NULL, 0)) {
-			error = VFS_SYNC(mp, MNT_WAIT, td);
+			error = VFS_SYNC(mp, MNT_WAIT);
 			if (error)
 				return (error);
 			flags = WRITECLOSE;
@@ -734,10 +735,9 @@ out:
  * unmount system call
  */
 static int
-ext2_unmount(mp, mntflags, td)
+ext2_unmount(mp, mntflags)
 	struct mount *mp;
 	int mntflags;
-	struct thread *td;
 {
 	struct ext2mount *ump;
 	struct ext2_sb_info *fs;
@@ -749,7 +749,7 @@ ext2_unmount(mp, mntflags, td)
 			return (EINVAL);
 		flags |= FORCECLOSE;
 	}
-	if ((error = ext2_flushfiles(mp, flags, td)) != 0)
+	if ((error = ext2_flushfiles(mp, flags, curthread)) != 0)
 		return (error);
 	ump = VFSTOEXT2(mp);
 	fs = ump->um_e2fs;
@@ -810,10 +810,9 @@ ext2_flushfiles(mp, flags, td)
  * taken from ext2/super.c ext2_statfs
  */
 static int
-ext2_statfs(mp, sbp, td)
+ext2_statfs(mp, sbp)
 	struct mount *mp;
 	struct statfs *sbp;
-	struct thread *td;
 {
         unsigned long overhead;
 	struct ext2mount *ump;
@@ -862,17 +861,18 @@ ext2_statfs(mp, sbp, td)
  * Note: we are always called with the filesystem marked `MPBUSY'.
  */
 static int
-ext2_sync(mp, waitfor, td)
+ext2_sync(mp, waitfor)
 	struct mount *mp;
 	int waitfor;
-	struct thread *td;
 {
 	struct vnode *mvp, *vp;
+	struct thread *td;
 	struct inode *ip;
 	struct ext2mount *ump = VFSTOEXT2(mp);
 	struct ext2_sb_info *fs;
 	int error, allerror = 0;
 
+	td = curthread;
 	fs = ump->um_e2fs;
 	if (fs->s_dirt != 0 && fs->s_rd_only != 0) {		/* XXX */
 		printf("fs = %s\n", fs->fs_fsmnt);
@@ -1143,11 +1143,10 @@ printf("\nupdating superblock, waitfor=%s\n", waitfor == MNT_WAIT ? "yes":"no");
  * Return the root of a filesystem.
  */
 static int
-ext2_root(mp, flags, vpp, td)
+ext2_root(mp, flags, vpp)
 	struct mount *mp;
 	int flags;
 	struct vnode **vpp;
-	struct thread *td;
 {
 	struct vnode *nvp;
 	int error;