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linux 6.7 compat: simplify current_time() check 

6.7 changed the names of the time members in struct inode, so we can't
assign back to it because we don't know its name. In practice this
doesn't matter though - if we're missing current_time(), then we must be
on <4.9, and we know our fallback will need to return timespec.

Signed-off-by: Rob Norris <robn@despairlabs.com>
Sponsored-by: https://github.com/sponsors/robn
(cherry picked from commit b3626f0a35)
This commit is contained in:
Rob Norris 2023-12-16 18:01:45 +11:00 committed by Tony Hutter
parent 4b849db210
commit da1cbd869b
1 changed files with 4 additions and 1 deletions
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5
config/kernel-current-time.m4
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@ -2,12 +2,15 @@ dnl #
dnl # 4.9, current_time() added dnl # 4.9, current_time() added
dnl # 4.18, return type changed from timespec to timespec64 dnl # 4.18, return type changed from timespec to timespec64
dnl # dnl #
dnl # Note that we don't care about the return type in this check. If we have
dnl # to implement a fallback, we'll know we're <4.9, which was timespec.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SRC_CURRENT_TIME], [ AC_DEFUN([ZFS_AC_KERNEL_SRC_CURRENT_TIME], [
ZFS_LINUX_TEST_SRC([current_time], [ ZFS_LINUX_TEST_SRC([current_time], [
#include <linux/fs.h> #include <linux/fs.h>
], [ ], [
struct inode ip __attribute__ ((unused)); struct inode ip __attribute__ ((unused));
ip.i_atime = current_time(&ip); (void) current_time(&ip);
]) ])
]) ])