Linux 2.6.35 compat, fops->fsync()

[zfs.git] / config / kernel-fsync.m4

diff --git a/config/kernel-fsync.m4 b/config/kernel-fsync.m4
new file mode 100644 (file)
index 0000000..2733dba
--- /dev/null
+++ b/config/kernel-fsync.m4
@@ -0,0 +1,20 @@
+dnl #
+dnl # 2.6.35 API change
+dnl # The dentry argument was deamed unused and dropped in 2.6.36.
+dnl #
+AC_DEFUN([ZFS_AC_KERNEL_FSYNC_2ARGS], [
+       AC_MSG_CHECKING([whether fops->fsync() wants 2 args])
+       ZFS_LINUX_TRY_COMPILE([
+               #include <linux/fs.h>
+       ],[
+               int (*fsync) (struct file *, int datasync) = NULL;
+               struct file_operations fops;
+
+               fops.fsync = fsync;
+       ],[
+               AC_MSG_RESULT(yes)
+               AC_DEFINE(HAVE_2ARGS_FSYNC, 1, [fops->fsync() want 2 args])
+       ],[
+               AC_MSG_RESULT(no)
+       ])
+])