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Eliminate runtime function pointer mods in autotools checks
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1 dnl #
2 dnl # 3.6 API change
3 dnl #
4 AC_DEFUN([ZFS_AC_KERNEL_LOOKUP_NAMEIDATA], [
5 AC_MSG_CHECKING([whether iops->lookup() takes struct nameidata])
6 ZFS_LINUX_TRY_COMPILE([
7 #include <linux/fs.h>
8
9 struct dentry *inode_lookup(struct inode *inode,
10 struct dentry *dentry, struct nameidata *nidata)
11 { return NULL; }
12
13 static const struct inode_operations iops
14 __attribute__ ((unused)) = {
15 .lookup = inode_lookup,
16 };
17 ],[
18 ],[
19 AC_MSG_RESULT(yes)
20 AC_DEFINE(HAVE_LOOKUP_NAMEIDATA, 1,
21 [iops->lookup() operation takes nameidata])
22 ],[
23 AC_MSG_RESULT(no)
24 ])
25 ])