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-rw-r--r--config/kernel-kmap-atomic-args.m422
1 files changed, 22 insertions, 0 deletions
diff --git a/config/kernel-kmap-atomic-args.m4 b/config/kernel-kmap-atomic-args.m4
new file mode 100644
index 000000000000..1172505afc68
--- /dev/null
+++ b/config/kernel-kmap-atomic-args.m4
@@ -0,0 +1,22 @@
+dnl #
+dnl # 2.6.37 API change
+dnl # kmap_atomic changed from assigning hard-coded named slot to using
+dnl # push/pop based dynamical allocation.
+dnl #
+AC_DEFUN([ZFS_AC_KERNEL_SRC_KMAP_ATOMIC_ARGS], [
+ ZFS_LINUX_TEST_SRC([kmap_atomic], [
+ #include <linux/pagemap.h>
+ ],[
+ struct page page;
+ kmap_atomic(&page);
+ ])
+])
+
+AC_DEFUN([ZFS_AC_KERNEL_KMAP_ATOMIC_ARGS], [
+ AC_MSG_CHECKING([whether kmap_atomic wants 1 args])
+ ZFS_LINUX_TEST_RESULT([kmap_atomic], [
+ AC_MSG_RESULT(yes)
+ ],[
+ ZFS_LINUX_TEST_ERROR([kmap_atomic()])
+ ])
+])