mirror_zfs/config/kernel-generic_fillattr.m4
Coleman Kane 01d00dfa9e Linux 6.6 compat: generic_fillattr has a new u32 request_mask added at arg2
In commit 0d72b92883c651a11059d93335f33d65c6eb653b, a new u32 argument
for the request_mask was added to generic_fillattr. This is the same
request_mask for statx that's present in the most recent API implemented
by zpl_getattr_impl. This commit conditionally adds it to the
zpl_generic_fillattr(...) macro, as well as the zfs_getattr_fast(...)
implementation, when configure determines it's present in the kernel's
generic_fillattr(...).

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Coleman Kane <ckane@colemankane.org>
Closes #15263
2023-09-21 18:38:40 -07:00

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dnl #
dnl # 5.12 API
dnl #
dnl # generic_fillattr in linux/fs.h now requires a struct user_namespace*
dnl # as the first arg, to support idmapped mounts.
dnl #
dnl # 6.3 API
dnl # generic_fillattr() now takes struct mnt_idmap* as the first argument
dnl #
dnl # 6.6 API
dnl # generic_fillattr() now takes u32 as second argument, representing a
dnl # request_mask for statx
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SRC_GENERIC_FILLATTR], [
ZFS_LINUX_TEST_SRC([generic_fillattr_userns], [
#include <linux/fs.h>
],[
struct user_namespace *userns = NULL;
struct inode *in = NULL;
struct kstat *k = NULL;
generic_fillattr(userns, in, k);
])
ZFS_LINUX_TEST_SRC([generic_fillattr_mnt_idmap], [
#include <linux/fs.h>
],[
struct mnt_idmap *idmap = NULL;
struct inode *in = NULL;
struct kstat *k = NULL;
generic_fillattr(idmap, in, k);
])
ZFS_LINUX_TEST_SRC([generic_fillattr_mnt_idmap_reqmask], [
#include <linux/fs.h>
],[
struct mnt_idmap *idmap = NULL;
struct inode *in = NULL;
struct kstat *k = NULL;
generic_fillattr(idmap, 0, in, k);
])
])
AC_DEFUN([ZFS_AC_KERNEL_GENERIC_FILLATTR], [
AC_MSG_CHECKING(
[whether generic_fillattr requires struct mnt_idmap* and request_mask])
ZFS_LINUX_TEST_RESULT([generic_fillattr_mnt_idmap_reqmask], [
AC_MSG_RESULT([yes])
AC_DEFINE(HAVE_GENERIC_FILLATTR_IDMAP_REQMASK, 1,
[generic_fillattr requires struct mnt_idmap* and u32 request_mask])
],[
AC_MSG_CHECKING([whether generic_fillattr requires struct mnt_idmap*])
ZFS_LINUX_TEST_RESULT([generic_fillattr_mnt_idmap], [
AC_MSG_RESULT([yes])
AC_DEFINE(HAVE_GENERIC_FILLATTR_IDMAP, 1,
[generic_fillattr requires struct mnt_idmap*])
],[
AC_MSG_CHECKING([whether generic_fillattr requires struct user_namespace*])
ZFS_LINUX_TEST_RESULT([generic_fillattr_userns], [
AC_MSG_RESULT([yes])
AC_DEFINE(HAVE_GENERIC_FILLATTR_USERNS, 1,
[generic_fillattr requires struct user_namespace*])
],[
AC_MSG_RESULT([no])
])
])
])
])