kernel/ntfs: Add ntfs_statvfs.

This fixes for example df output for large filesystems.

diff --git a/sys/vfs/ntfs/ntfs_vfsops.c b/sys/vfs/ntfs/ntfs_vfsops.c
index 8384e8d..2673dcb 100644 (file)
--- a/sys/vfs/ntfs/ntfs_vfsops.c
+++ b/sys/vfs/ntfs/ntfs_vfsops.c
@@ -82,7 +82,10 @@ MALLOC_DEFINE(M_NTFSDIR,"NTFS dir",  "NTFS dir buffer");
 struct iconv_functions *ntfs_iconv = NULL;
 
 static int     ntfs_root (struct mount *, struct vnode **);
-static int     ntfs_statfs (struct mount *, struct statfs *, struct ucred *cred);
+static int     ntfs_statfs (struct mount *, struct statfs *,
+                               struct ucred *cred);
+static int     ntfs_statvfs (struct mount *, struct statvfs *,
+                               struct ucred *);
 static int     ntfs_unmount (struct mount *, int);
 static int     ntfs_vget (struct mount *mp, struct vnode *dvp,
                                ino_t ino, struct vnode **vpp);
@@ -771,6 +774,28 @@ ntfs_statfs(struct mount *mp, struct statfs *sbp, struct ucred *cred)
        return (0);
 }
 
+static int
+ntfs_statvfs(struct mount *mp, struct statvfs *sbp, struct ucred *cred)
+{
+       struct ntfsmount *ntmp = VFSTONTFS(mp);
+       u_int64_t mftsize,mftallocated;
+
+       dprintf(("ntfs_statvfs():\n"));
+
+       mftsize = VTOF(ntmp->ntm_sysvn[NTFS_MFTINO])->f_size;
+       mftallocated = VTOF(ntmp->ntm_sysvn[NTFS_MFTINO])->f_allocated;
+
+       sbp->f_type = mp->mnt_vfc->vfc_typenum;
+       sbp->f_bsize = ntmp->ntm_bps;
+       sbp->f_blocks = ntmp->ntm_bootfile.bf_spv;
+       sbp->f_bfree = sbp->f_bavail = ntmp->ntm_cfree * ntmp->ntm_spc;
+       sbp->f_ffree = sbp->f_bfree / ntmp->ntm_bpmftrec;
+       sbp->f_files = mftallocated / (ntmp->ntm_bpmftrec * ntmp->ntm_bps) +
+                      sbp->f_ffree;
+       
+       return (0);
+}
+
 #if !defined(__DragonFly__)
 static int
 ntfs_sync(struct mount *mp, int waitfor, struct ucred *cred, struct thread *td)
@@ -933,6 +958,7 @@ static struct vfsops ntfs_vfsops = {
        .vfs_unmount =          ntfs_unmount,
        .vfs_root =             ntfs_root,
        .vfs_statfs =           ntfs_statfs,
+       .vfs_statvfs =          ntfs_statvfs,
        .vfs_sync =             vfs_stdsync,
        .vfs_vget =             ntfs_vget,
        .vfs_fhtovp =           ntfs_fhtovp,