Patch "posix-timers: Handle relative timers with CONFIG_TIME_LOW_RES proper" has been added to the 4.4-stable tree

This is a note to let you know that I've just added the patch titled

posix-timers: Handle relative timers with CONFIG_TIME_LOW_RES proper

to the 4.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
posix-timers-handle-relative-timers-with-config_time_low_res-proper.patch
and it can be found in the queue-4.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Thomas Gleixner <[email protected]>
Date: Thu, 14 Jan 2016 16:54:47 +0000
Subject: posix-timers: Handle relative timers with CONFIG_TIME_LOW_RES proper

From: Thomas Gleixner <[email protected]>

commit 572c39172684c3711e4a03c9a7380067e2b0661c upstream.

As Helge reported for timerfd we have the same issue in posix timers. We return remaining time larger than the programmed relative time to user space in case of CONFIG_TIME_LOW_RES=y. Use the proper function to adjust the extra time added in hrtimer_start_range_ns().

---
 kernel/time/posix-timers.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

@@ -760,7 +760,7 @@ common_timer_get(struct k_itimer *timr,
 	    (timr->it_sigev_notify & ~SIGEV_THREAD_ID) == SIGEV_NONE))
 		timr->it_overrun += (unsigned int) hrtimer_forward(timer, now, iv);
 
-	remaining = ktime_sub(hrtimer_get_expires(timer), now);
+	remaining = __hrtimer_expires_remaining_adjusted(timer, now);
 	/* Return 0 only, when the timer is expired and not pending */
 	if (remaining.tv64 <= 0) {
 		/*

Patches currently in stable-queue which might be from [email protected] are

queue-4.4/itimers-handle-relative-timers-with-config_time_low_res-proper.patch queue-4.4/futex-drop-refcount-if-requeue_pi-acquired-the-rtmutex.patch queue-4.4/x86-mm-pat-avoid-truncation-when-converting-cpa-numpages-to-address.patch queue-4.4/x86-uaccess-64-handle-the-caching-of-4-byte-nocache-copies-properly-in-__copy_user_nocache.patch queue-4.4/timerfd-handle-relative-timers-with-config_time_low_res-proper.patch queue-4.4/posix-timers-handle-relative-timers-with-config_time_low_res-proper.patch queue-4.4/x86-mm-fix-vmalloc_fault-to-handle-large-pages-properly.patch queue-4.4/x86-mm-fix-types-used-in-pgprot-cacheability-flags-translations.patch queue-4.4/x86-uaccess-64-make-the-__copy_user_nocache-assembly-code-more-readable.patch