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freebsd/config/kernel-inode-times.m4
alaviss 3e5d41d807
config/kernel-inode-times: initialize timespec
Usage of this variable uninitialized triggers -Werror,-Wuninitialized
when compiled under clang for linux kernel 5.6, leading the build system
to believe that the function is not declared.

This commit initializes the variable to suppress the warning and fix the
build for kernel 5.6 with clang.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Hiếu Lê <leorize+oss@disroot.org>
Closes #10279
Closes #10281
2020-05-04 15:25:48 -07:00

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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;
])
])
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])
])
])