Linux 3.2 compat: set_nlink()

[zfs.git] / config / kernel-set-nlink.m4

diff --git a/config/kernel-set-nlink.m4 b/config/kernel-set-nlink.m4
new file mode 100644 (file)
index 0000000..f7ffc0d
--- /dev/null
+++ b/config/kernel-set-nlink.m4
@@ -0,0 +1,20 @@
+dnl #
+dnl # Linux v3.2-rc1 API change
+dnl # SHA: bfe8684869601dacfcb2cd69ef8cfd9045f62170
+dnl #
+AC_DEFUN([ZFS_AC_KERNEL_SET_NLINK], [
+       AC_MSG_CHECKING([whether set_nlink() is available])
+       ZFS_LINUX_TRY_COMPILE([
+               #include <linux/fs.h>
+       ],[
+               struct inode node;
+               unsigned int link = 0;
+               (void) set_nlink(&node, link);
+       ],[
+               AC_MSG_RESULT(yes)
+               AC_DEFINE(HAVE_SET_NLINK, 1,
+                         [set_nlink() is available])
+       ],[
+               AC_MSG_RESULT(no)
+       ])
+])