From 1025735d6490984a04a96ee816a15b6f5fb34af1 Mon Sep 17 00:00:00 2001
From: trasz <trasz@ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f>
Date: Sun, 18 Oct 2015 13:58:17 +0000
Subject: [PATCH] MFC r281689:

Remove unused code from linux_mount(), and make it possible to mount
any kind of filesystem instead of harcoded three.

Sponsored by:	The FreeBSD Foundation


git-svn-id: svn://svn.freebsd.org/base/stable/10@289504 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f
---
 sys/compat/linux/linux_file.c | 34 +++++-----------------------------
 1 file changed, 5 insertions(+), 29 deletions(-)

diff --git a/sys/compat/linux/linux_file.c b/sys/compat/linux/linux_file.c
index e56e61f24..3076eece5 100644
--- a/sys/compat/linux/linux_file.c
+++ b/sys/compat/linux/linux_file.c
@@ -55,10 +55,6 @@ __FBSDID("$FreeBSD$");
 
 #include <security/mac/mac_framework.h>
 
-#include <ufs/ufs/extattr.h>
-#include <ufs/ufs/quota.h>
-#include <ufs/ufs/ufsmount.h>
-
 #ifdef COMPAT_LINUX32
 #include <machine/../linux32/linux.h>
 #include <machine/../linux32/linux32_proto.h>
@@ -1072,12 +1068,10 @@ linux_pwrite(td, uap)
 int
 linux_mount(struct thread *td, struct linux_mount_args *args)
 {
-	struct ufs_args ufs;
 	char fstypename[MFSNAMELEN];
 	char mntonname[MNAMELEN], mntfromname[MNAMELEN];
 	int error;
 	int fsflags;
-	void *fsdata;
 
 	error = copyinstr(args->filesystemtype, fstypename, MFSNAMELEN - 1,
 	    NULL);
@@ -1098,20 +1092,10 @@ linux_mount(struct thread *td, struct linux_mount_args *args)
 
 	if (strcmp(fstypename, "ext2") == 0) {
 		strcpy(fstypename, "ext2fs");
-		fsdata = &ufs;
-		ufs.fspec = mntfromname;
-#define DEFAULT_ROOTID		-2
-		ufs.export.ex_root = DEFAULT_ROOTID;
-		ufs.export.ex_flags =
-		    args->rwflag & LINUX_MS_RDONLY ? MNT_EXRDONLY : 0;
 	} else if (strcmp(fstypename, "proc") == 0) {
 		strcpy(fstypename, "linprocfs");
-		fsdata = NULL;
 	} else if (strcmp(fstypename, "vfat") == 0) {
 		strcpy(fstypename, "msdosfs");
-		fsdata = NULL;
-	} else {
-		return (ENODEV);
 	}
 
 	fsflags = 0;
@@ -1131,19 +1115,11 @@ linux_mount(struct thread *td, struct linux_mount_args *args)
 			fsflags |= MNT_UPDATE;
 	}
 
-	if (strcmp(fstypename, "linprocfs") == 0) {
-		error = kernel_vmount(fsflags,
-			"fstype", fstypename,
-			"fspath", mntonname,
-			NULL);
-	} else if (strcmp(fstypename, "msdosfs") == 0) {
-		error = kernel_vmount(fsflags,
-			"fstype", fstypename,
-			"fspath", mntonname,
-			"from", mntfromname,
-			NULL);
-	} else
-		error = EOPNOTSUPP;
+	error = kernel_vmount(fsflags,
+	    "fstype", fstypename,
+	    "fspath", mntonname,
+	    "from", mntfromname,
+	    NULL);
 	return (error);
 }
 
-- 
2.45.0