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-rw-r--r--config/kernel-xattr-handler.m425
1 files changed, 25 insertions, 0 deletions
diff --git a/config/kernel-xattr-handler.m4 b/config/kernel-xattr-handler.m4
index ce18eaf9c..300cb0ba8 100644
--- a/config/kernel-xattr-handler.m4
+++ b/config/kernel-xattr-handler.m4
@@ -58,6 +58,31 @@ 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 #
AC_DEFUN([ZFS_AC_KERNEL_XATTR_HANDLER_GET], [