SLES10 Fixes (part 4):

- Configure check for SLES specific API change to vfs_unlink()
  and vfs_rename() which added a 'struct vfsmount *' argument.
  This was for something called the linux-security-module, but
  it appears that it was never adopted upstream.

config/spl-build.m4

@@ -908,3 +908,41 @@ AC_DEFUN([SPL_AC_ZONE_STAT_ITEM_FIA], [
 		AC_MSG_RESULT(no)
 	])
 ])
+
+dnl #
+dnl # SLES API change, never adopted in mainline,
+dnl # Third 'struct vfsmount *' argument removed.
+dnl #
+AC_DEFUN([SPL_AC_2ARGS_VFS_UNLINK],
+	[AC_MSG_CHECKING([whether vfs_unlink() wants 2 args])
+	SPL_LINUX_TRY_COMPILE([
+		#include <linux/fs.h>
+	],[
+		vfs_unlink(NULL, NULL);
+	],[
+		AC_MSG_RESULT(yes)
+		AC_DEFINE(HAVE_2ARGS_VFS_UNLINK, 1,
+		          [vfs_unlink() wants 2 args])
+	],[
+		AC_MSG_RESULT(no)
+	])
+])
+
+dnl #
+dnl # SLES API change, never adopted in mainline,
+dnl # Third and sixth 'struct vfsmount *' argument removed.
+dnl #
+AC_DEFUN([SPL_AC_4ARGS_VFS_RENAME],
+	[AC_MSG_CHECKING([whether vfs_rename() wants 4 args])
+	SPL_LINUX_TRY_COMPILE([
+		#include <linux/fs.h>
+	],[
+		vfs_rename(NULL, NULL, NULL, NULL);
+	],[
+		AC_MSG_RESULT(yes)
+		AC_DEFINE(HAVE_4ARGS_VFS_RENAME, 1,
+		          [vfs_rename() wants 4 args])
+	],[
+		AC_MSG_RESULT(no)
+	])
+])

configure

@@ -21081,6 +21081,134 @@ echo "${ECHO_T}no" >&6
 
 
 
+fi
+
+	rm -Rf build
+
+
+
+echo "$as_me:$LINENO: checking whether vfs_unlink() wants 2 args" >&5
+echo $ECHO_N "checking whether vfs_unlink() wants 2 args... $ECHO_C" >&6
+
+
+cat >conftest.c <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+
+		#include <linux/fs.h>
+
+int
+main (void)
+{
+
+		vfs_unlink(NULL, NULL);
+
+  ;
+  return 0;
+}
+
+_ACEOF
+
+
+	rm -Rf build && mkdir -p build
+	echo "obj-m := conftest.o" >build/Makefile
+	if { ac_try='cp conftest.c build && make modules LINUXINCLUDE="-Iinclude -Iinclude2 -I$LINUX/include -include include/linux/autoconf.h" -o tmp_include_depends -o scripts -o include/config/MARKER -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } >/dev/null && { ac_try='test -s build/conftest.o'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+
+		echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_2ARGS_VFS_UNLINK 1
+_ACEOF
+
+
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+		echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+
+
+
+fi
+
+	rm -Rf build
+
+
+
+echo "$as_me:$LINENO: checking whether vfs_rename() wants 4 args" >&5
+echo $ECHO_N "checking whether vfs_rename() wants 4 args... $ECHO_C" >&6
+
+
+cat >conftest.c <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+
+		#include <linux/fs.h>
+
+int
+main (void)
+{
+
+		vfs_rename(NULL, NULL, NULL, NULL);
+
+  ;
+  return 0;
+}
+
+_ACEOF
+
+
+	rm -Rf build && mkdir -p build
+	echo "obj-m := conftest.o" >build/Makefile
+	if { ac_try='cp conftest.c build && make modules LINUXINCLUDE="-Iinclude -Iinclude2 -I$LINUX/include -include include/linux/autoconf.h" -o tmp_include_depends -o scripts -o include/config/MARKER -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } >/dev/null && { ac_try='test -s build/conftest.o'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+
+		echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_4ARGS_VFS_RENAME 1
+_ACEOF
+
+
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+		echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+
+
+
 fi
 
 	rm -Rf build

configure.ac

@@ -79,6 +79,8 @@ SPL_AC_NEXT_ZONE
 SPL_AC_GET_ZONE_COUNTS
 SPL_AC_GLOBAL_PAGE_STATE
 SPL_AC_ZONE_STAT_ITEM_FIA
+SPL_AC_2ARGS_VFS_UNLINK
+SPL_AC_4ARGS_VFS_RENAME
 
 AC_CONFIG_FILES([
 	Makefile

module/spl/spl-vnode.c

@@ -290,7 +290,7 @@ vn_remove(const char *path, uio_seg_t seg, int flags)
         mutex_lock_nested(&nd.nd_dentry->d_inode->i_mutex, I_MUTEX_PARENT);
 #else
         down(&nd.nd_dentry->d_inode->i_sem);
-#endif
+#endif /* HAVE_INODE_I_MUTEX */
         dentry = vn_lookup_hash(&nd);
         rc = PTR_ERR(dentry);
         if (!IS_ERR(dentry)) {
@@ -301,7 +301,11 @@ vn_remove(const char *path, uio_seg_t seg, int flags)
                 inode = dentry->d_inode;
                 if (inode)
                         atomic_inc(&inode->i_count);
+#ifdef HAVE_2ARGS_VFS_UNLINK
                 rc = vfs_unlink(nd.nd_dentry->d_inode, dentry);
+#else
+                rc = vfs_unlink(nd.nd_dentry->d_inode, dentry, nd.mnt);
+#endif /* HAVE_2ARGS_VFS_UNLINK */
 exit2:
                 dput(dentry);
         }
@@ -309,7 +313,7 @@ exit2:
         mutex_unlock(&nd.nd_dentry->d_inode->i_mutex);
 #else
         up(&nd.nd_dentry->d_inode->i_sem);
-#endif
+#endif /* HAVE_INODE_I_MUTEX */
         if (inode)
                 iput(inode);    /* truncate the inode here */
 exit1:
@@ -393,8 +397,13 @@ vn_rename(const char *oldname, const char *newname, int x1)
         if (new_dentry == trap)
                 GOTO(exit5, rc);
 
+#ifdef HAVE_4ARGS_VFS_RENAME
         rc = vfs_rename(old_dir->d_inode, old_dentry,
                         new_dir->d_inode, new_dentry);
+#else
+        rc = vfs_rename(old_dir->d_inode, old_dentry, oldnd.mnt,
+                        new_dir->d_inode, new_dentry, newnd.mnt);
+#endif /* HAVE_4ARGS_VFS_RENAME */
 exit5:
         dput(new_dentry);
 exit4:

spl_config.h.in

@@ -15,12 +15,18 @@
 /* register_sysctl_table() wants 2 args */
 #undef HAVE_2ARGS_REGISTER_SYSCTL
 
+/* vfs_unlink() wants 2 args */
+#undef HAVE_2ARGS_VFS_UNLINK
+
 /* INIT_WORK wants 3 args */
 #undef HAVE_3ARGS_INIT_WORK
 
 /* on_each_cpu wants 3 args */
 #undef HAVE_3ARGS_ON_EACH_CPU
 
+/* vfs_rename() wants 4 args */
+#undef HAVE_4ARGS_VFS_RENAME
+
 /* device_create wants 5 args */
 #undef HAVE_5ARGS_DEVICE_CREATE