LINUX: Detect non-vectorized aio functions

[openafs.git] / src / cf / linux-test4.m4

diff --git a/src/cf/linux-test4.m4 b/src/cf/linux-test4.m4
index a99becb..63aab1d 100644 (file)
--- a/src/cf/linux-test4.m4
+++ b/src/cf/linux-test4.m4
@@ -1,3 +1,17 @@
+
+AC_DEFUN([LINUX_AIO_NONVECTOR],
+ [AC_CHECK_LINUX_BUILD([for non-vectorized aio kernel functions],
+                       [ac_cv_linux_aio_nonvector],
+                       [#include <linux/fs.h>],
+                       [extern ssize_t
+                        generic_file_aio_read(struct kiocb *, char __user *,
+                                              size_t, loff_t);],
+                       [LINUX_HAS_NONVECTOR_AIO],
+                       [define if kernel functions like generic_file_aio_read use
+                        non-vectorized i/o],
+                       [])
+ ])
+
 AC_DEFUN([LINUX_EXPORTS_TASKLIST_LOCK], [
   AC_CHECK_LINUX_BUILD([for exported tasklist_lock],
                       [ac_cv_linux_exports_tasklist_lock],
@@ -731,3 +745,17 @@ AC_DEFUN([LINUX_DOP_D_REVALIDATE_TAKES_UNSIGNED], [
                       [define if your dops.d_revalidate takes an unsigned int argument],
                       [-Werror])
 ])
+
+
+AC_DEFUN([LINUX_IOP_LOOKUP_TAKES_UNSIGNED], [
+  AC_CHECK_LINUX_BUILD([whether inode operation lookup takes an unsigned int],
+                       [ac_cv_linux_func_lookup_takes_unsigned],
+                       [#include <linux/fs.h>
+                       #include <linux/namei.h>],
+                       [struct inode_operations iops;
+                       struct dentry *look(struct inode *i, struct dentry *d, unsigned int j) { return NULL; };
+                       iops.lookup = look;],
+                      [IOP_LOOKUP_TAKES_UNSIGNED],
+                      [define if your iops.lookup takes an unsigned int argument],
+                      [-Werror])
+])