zdb: add extra -T flag to show histograms of BRT refcounts
[zfs.git] / config / kernel-inode-setattr.m4
blob9a12acc95a3f26ee8280227d550ac7af9a2a034a
1 AC_DEFUN([ZFS_AC_KERNEL_SRC_INODE_SETATTR], [
2         dnl #
3         dnl # Linux 6.3 API
4         dnl # The first arg of setattr I/O operations handler type
5         dnl # is changed to struct mnt_idmap*
6         dnl #
7         ZFS_LINUX_TEST_SRC([inode_operations_setattr_mnt_idmap], [
8                 #include <linux/fs.h>
10                 static int test_setattr(
11                     struct mnt_idmap *idmap,
12                     struct dentry *de, struct iattr *ia)
13                     { return 0; }
15                 static const struct inode_operations
16                     iops __attribute__ ((unused)) = {
17                         .setattr = test_setattr,
18                 };
19         ],[])
21         dnl #
22         dnl # Linux 5.12 API
23         dnl # The setattr I/O operations handler type was extended to require
24         dnl # a struct user_namespace* as its first arg, to support idmapped
25         dnl # mounts.
26         dnl #
27         ZFS_LINUX_TEST_SRC([inode_operations_setattr_userns], [
28                 #include <linux/fs.h>
30                 static int test_setattr(
31                     struct user_namespace *userns,
32                     struct dentry *de, struct iattr *ia)
33                     { return 0; }
35                 static const struct inode_operations
36                     iops __attribute__ ((unused)) = {
37                         .setattr = test_setattr,
38                 };
39         ],[])
42 AC_DEFUN([ZFS_AC_KERNEL_INODE_SETATTR], [
43         dnl #
44         dnl # Kernel 6.3 test
45         dnl #
46         AC_MSG_CHECKING([whether iops->setattr() takes mnt_idmap])
47         ZFS_LINUX_TEST_RESULT([inode_operations_setattr_mnt_idmap], [
48                 AC_MSG_RESULT(yes)
49                 AC_DEFINE(HAVE_IDMAP_IOPS_SETATTR, 1,
50                     [iops->setattr() takes struct mnt_idmap*])
51         ],[
52                 AC_MSG_RESULT(no)
53                 dnl #
54                 dnl # Kernel 5.12 test
55                 dnl #
56                 AC_MSG_CHECKING([whether iops->setattr() takes user_namespace])
57                 ZFS_LINUX_TEST_RESULT([inode_operations_setattr_userns], [
58                         AC_MSG_RESULT(yes)
59                         AC_DEFINE(HAVE_USERNS_IOPS_SETATTR, 1,
60                             [iops->setattr() takes struct user_namespace*])
61                 ],[
62                         AC_MSG_RESULT(no)
63                 ])
64         ])