Imported Upstream version 0.6.5.9

[mirror_zfs-debian.git] / config / kernel-xattr-handler.m4

diff --git a/config/kernel-xattr-handler.m4 b/config/kernel-xattr-handler.m4
index dcffd4480c75672feb85f53704170d6d6705393e..4ac08d8e7eeb4e005517ebfe22f0d804a5cac8fe 100644 (file)
--- a/config/kernel-xattr-handler.m4
+++ b/config/kernel-xattr-handler.m4
@@ -57,6 +57,31 @@ AC_DEFUN([ZFS_AC_KERNEL_XATTR_HANDLER_NAME], [
        ])
 ])
 
+dnl #
+dnl # 4.9 API change,
+dnl # iops->{set,get,remove}xattr and generic_{set,get,remove}xattr are
+dnl # removed. xattr operations will directly go through sb->s_xattr.
+dnl #
+AC_DEFUN([ZFS_AC_KERNEL_HAVE_GENERIC_SETXATTR], [
+       AC_MSG_CHECKING([whether generic_setxattr() exists])
+       ZFS_LINUX_TRY_COMPILE([
+               #include <linux/fs.h>
+               #include <linux/xattr.h>
+
+               static const struct inode_operations
+                   iops __attribute__ ((unused)) = {
+                       .setxattr = generic_setxattr
+               };
+       ],[
+       ],[
+               AC_MSG_RESULT(yes)
+               AC_DEFINE(HAVE_GENERIC_SETXATTR, 1,
+                   [generic_setxattr() exists])
+       ],[
+               AC_MSG_RESULT(no)
+       ])
+])
+
 dnl #
 dnl # Supported xattr handler get() interfaces checked newest to oldest.
 dnl #