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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.

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
This commit is contained in:
Rob Norris 2023-12-16 18:01:45 +11:00 committed by Brian Behlendorf
parent dbda45160f
commit 00f40961e0
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 # 4.18, return type changed from timespec to timespec64
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], [
ZFS_LINUX_TEST_SRC([current_time], [
#include <linux/fs.h>
], [
struct inode ip __attribute__ ((unused));
ip.i_atime = current_time(&ip);
(void) current_time(&ip);
])
])