mirror_zfs/config/kernel-inode-times.m4
Rob Norris db4fc559cc Linux 6.7 compat: use inode atime/mtime accessors
6.6 made i_ctime inaccessible; 6.7 has done the same for i_atime and
i_mtime. This extends the method used for ctime in b37f29341 to atime
and mtime as well.

Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Rob Norris <robn@despairlabs.com>
Sponsored-by: https://github.com/sponsors/robn
Closes #15681
2023-12-20 11:47:40 -08:00

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AC_DEFUN([ZFS_AC_KERNEL_SRC_INODE_TIMES], [
dnl #
dnl # 5.6 API change
dnl # timespec64_trunc() replaced by timestamp_truncate() interface.
dnl #
ZFS_LINUX_TEST_SRC([timestamp_truncate], [
#include <linux/fs.h>
],[
struct timespec64 ts;
struct inode ip;
memset(&ts, 0, sizeof(ts));
ts = timestamp_truncate(ts, &ip);
])
dnl #
dnl # 4.18 API change
dnl # i_atime, i_mtime, and i_ctime changed from timespec to timespec64.
dnl #
ZFS_LINUX_TEST_SRC([inode_times], [
#include <linux/fs.h>
],[
struct inode ip;
struct timespec ts;
memset(&ip, 0, sizeof(ip));
ts = ip.i_mtime;
])
dnl #
dnl # 6.6 API change
dnl # i_ctime no longer directly accessible, must use
dnl # inode_get_ctime(ip), inode_set_ctime*(ip) to
dnl # read/write.
dnl #
ZFS_LINUX_TEST_SRC([inode_get_ctime], [
#include <linux/fs.h>
],[
struct inode ip;
memset(&ip, 0, sizeof(ip));
inode_get_ctime(&ip);
])
ZFS_LINUX_TEST_SRC([inode_set_ctime_to_ts], [
#include <linux/fs.h>
],[
struct inode ip;
struct timespec64 ts = {0};
memset(&ip, 0, sizeof(ip));
inode_set_ctime_to_ts(&ip, ts);
])
dnl #
dnl # 6.7 API change
dnl # i_atime/i_mtime no longer directly accessible, must use
dnl # inode_get_mtime(ip), inode_set_mtime*(ip) to
dnl # read/write.
dnl #
ZFS_LINUX_TEST_SRC([inode_get_atime], [
#include <linux/fs.h>
],[
struct inode ip;
memset(&ip, 0, sizeof(ip));
inode_get_atime(&ip);
])
ZFS_LINUX_TEST_SRC([inode_get_mtime], [
#include <linux/fs.h>
],[
struct inode ip;
memset(&ip, 0, sizeof(ip));
inode_get_mtime(&ip);
])
ZFS_LINUX_TEST_SRC([inode_set_atime_to_ts], [
#include <linux/fs.h>
],[
struct inode ip;
struct timespec64 ts = {0};
memset(&ip, 0, sizeof(ip));
inode_set_atime_to_ts(&ip, ts);
])
ZFS_LINUX_TEST_SRC([inode_set_mtime_to_ts], [
#include <linux/fs.h>
],[
struct inode ip;
struct timespec64 ts = {0};
memset(&ip, 0, sizeof(ip));
inode_set_mtime_to_ts(&ip, ts);
])
])
AC_DEFUN([ZFS_AC_KERNEL_INODE_TIMES], [
AC_MSG_CHECKING([whether timestamp_truncate() exists])
ZFS_LINUX_TEST_RESULT([timestamp_truncate], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_INODE_TIMESTAMP_TRUNCATE, 1,
[timestamp_truncate() exists])
],[
AC_MSG_RESULT(no)
])
AC_MSG_CHECKING([whether inode->i_*time's are timespec64])
ZFS_LINUX_TEST_RESULT([inode_times], [
AC_MSG_RESULT(no)
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_INODE_TIMESPEC64_TIMES, 1,
[inode->i_*time's are timespec64])
])
AC_MSG_CHECKING([whether inode_get_ctime() exists])
ZFS_LINUX_TEST_RESULT([inode_get_ctime], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_INODE_GET_CTIME, 1,
[inode_get_ctime() exists in linux/fs.h])
],[
AC_MSG_RESULT(no)
])
AC_MSG_CHECKING([whether inode_set_ctime_to_ts() exists])
ZFS_LINUX_TEST_RESULT([inode_set_ctime_to_ts], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_INODE_SET_CTIME_TO_TS, 1,
[inode_set_ctime_to_ts() exists in linux/fs.h])
],[
AC_MSG_RESULT(no)
])
AC_MSG_CHECKING([whether inode_get_atime() exists])
ZFS_LINUX_TEST_RESULT([inode_get_atime], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_INODE_GET_ATIME, 1,
[inode_get_atime() exists in linux/fs.h])
],[
AC_MSG_RESULT(no)
])
AC_MSG_CHECKING([whether inode_set_atime_to_ts() exists])
ZFS_LINUX_TEST_RESULT([inode_set_atime_to_ts], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_INODE_SET_ATIME_TO_TS, 1,
[inode_set_atime_to_ts() exists in linux/fs.h])
],[
AC_MSG_RESULT(no)
])
AC_MSG_CHECKING([whether inode_get_mtime() exists])
ZFS_LINUX_TEST_RESULT([inode_get_mtime], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_INODE_GET_MTIME, 1,
[inode_get_mtime() exists in linux/fs.h])
],[
AC_MSG_RESULT(no)
])
AC_MSG_CHECKING([whether inode_set_mtime_to_ts() exists])
ZFS_LINUX_TEST_RESULT([inode_set_mtime_to_ts], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_INODE_SET_MTIME_TO_TS, 1,
[inode_set_mtime_to_ts() exists in linux/fs.h])
],[
AC_MSG_RESULT(no)
])
])