Use SMB_QUERY_FS_SIZE_INFO request to populate statfs structure.

When server doesn't support this request, try to use SMB_INFO_ALLOCATION.
And use SMB_COM_QUERY_INFORMATION_DISK request as fallback.

MFC after:	2 weeks

1 files changed, 5 insertions, 12 deletions

diff --git a/sys/fs/smbfs/smbfs_vfsops.c b/sys/fs/smbfs/smbfs_vfsops.c
index 2d33df3..8277982 100644
--- a/sys/fs/smbfs/smbfs_vfsops.c
+++ b/sys/fs/smbfs/smbfs_vfsops.c
@@ -390,7 +390,7 @@ smbfs_statfs(struct mount *mp, struct statfs *sbp)
 	struct smbnode *np = smp->sm_root;
 	struct smb_share *ssp = smp->sm_share;
 	struct smb_cred *scred;
-	int error = 0;
+	int error;
 
 	if (np == NULL) {
 		vfs_mount_error(mp, "np == NULL");
@@ -400,16 +400,9 @@ smbfs_statfs(struct mount *mp, struct statfs *sbp)
 	sbp->f_iosize = SSTOVC(ssp)->vc_txmax;		/* optimal transfer block size */
 	scred = smbfs_malloc_scred();
 	smb_makescred(scred, td, td->td_ucred);
-
-	if (SMB_DIALECT(SSTOVC(ssp)) >= SMB_DIALECT_LANMAN2_0)
-		error = smbfs_smb_statfs2(ssp, sbp, scred);
-	else
-		error = smbfs_smb_statfs(ssp, sbp, scred);
-	if (error) {
-		smbfs_free_scred(scred);
-		return error;
-	}
-	sbp->f_flags = 0;		/* copy of mount exported flags */
+	error = smbfs_smb_statfs(ssp, sbp, scred);
+	if (error == 0)
+		sbp->f_flags = 0;	/* copy of mount exported flags */
 	smbfs_free_scred(scred);
-	return 0;
+	return (error);
 }