Revert "posix-cpu-timers: Force next expiration recalc after itimer reset"

stable inclusion
from stable-5.10.66
commit f49fd9882f54a5c91d211f5f37432d50f4a1bb1c
bugzilla: 182374 https://gitee.com/openeuler/kernel/issues/I4EH73

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=f49fd9882f54a5c91d211f5f37432d50f4a1bb1c

--------------------------------

This reverts commit 13ccaef77ee86047033c50bf59cb19e0dda3aa97 which is
commit 406dd42b upstream.

It is reported to cause regressions.  A proposed fix has been posted,
but it is not in a released kernel yet.  So just revert this from the
stable release so that the bug is fixed.  If it's really needed we can
add it back in in a future release.

Link: https://lore.kernel.org/r/87ilz1pwaq.fsf@wylie.me.ukReported-by: N"Alan J. Wylie" <alan@wylie.me.uk>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Frederic Weisbecker <frederic@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Sasha Levin <sashal@kernel.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: NChen Jun <chenjun102@huawei.com>
Acked-by: NWeilong Chen <chenweilong@huawei.com>
Signed-off-by: NChen Jun <chenjun102@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

kernel/time/posix-cpu-timers.c

@@ -1346,6 +1346,8 @@ void set_process_cpu_timer(struct task_struct *tsk, unsigned int clkid,
 			}
 		}
 
+		if (!*newval)
+			return;
 		*newval += now;
 	}