mirror_zfs/config/kernel-setattr-prepare.m4
Brian Behlendorf 3b0ba3ba99 Linux 4.9 compat: inode_change_ok() renamed setattr_prepare()
In torvalds/linux@31051c8 the inode_change_ok() function was
renamed setattr_prepare() and updated to take a dentry ratheri
than an inode.  Update the code to call the setattr_prepare()
and add a wrapper function which call inode_change_ok() for
older kernels.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Chunwei Chen <david.chen@osnexus.com>
Requires-spl: refs/pull/581/head
2016-10-20 09:39:09 -07:00

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dnl #
dnl # 4.9 API change
dnl # The inode_change_ok() function has been renamed setattr_prepare()
dnl # and updated to take a dentry rather than an inode.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SETATTR_PREPARE],
[AC_MSG_CHECKING([whether setattr_prepare() is available])
ZFS_LINUX_TRY_COMPILE_SYMBOL([
#include <linux/fs.h>
], [
struct dentry *dentry = NULL;
struct iattr *attr = NULL;
int error;
error = setattr_prepare(dentry, attr);
], [setattr_prepare], [fs/attr.c], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_SETATTR_PREPARE, 1,
[setattr_prepare() is available])
], [
AC_MSG_RESULT(no)
])
])