Andrey Ryabinin 9e0e83a1ec sched/fair: Fix multiplication overflow on 32-bit systems ... Make 'r' 64-bit type to avoid overflow in 'r * LOAD_AVG_MAX' on 32-bit systems: UBSAN: Undefined behaviour in kernel/sched/fair.c:2785:18 signed integer overflow: 87950 * 47742 cannot be represented in type 'int' The most likely effect of this bug are bad load average numbers resulting in weird scheduling. It's also likely that this can persist for a longer time - until the system goes idle for a long time so that all load avg numbers get reset. [ This is the CFS load average metric, not the procfs output, which is separate. ] Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Fixes: 9d89c257df ("sched/fair: Rewrite runnable load and utilization average tracking") Link: http://lkml.kernel.org/r/1450097243-30137-1-git-send-email-aryabinin@virtuozzo.com [ Improved the changelog. ] Signed-off-by: Ingo Molnar <mingo@kernel.org>		2016-01-06 11:01:05 +01:00
..
auto_group.c
auto_group.h
clock.c	treewide: Remove old email address	2015-11-23 09:44:58 +01:00
completion.c
core.c	Merge branch 'master' into for-4.4-fixes	2015-12-07 10:09:03 -05:00
cpuacct.c
cpuacct.h
cpudeadline.c
cpudeadline.h
cpupri.c
cpupri.h
cputime.c	sched/cputime: Fix invalid gtime in proc	2015-12-04 10:18:49 +01:00
deadline.c
debug.c
fair.c	sched/fair: Fix multiplication overflow on 32-bit systems	2016-01-06 11:01:05 +01:00
features.h
idle_task.c
idle.c
loadavg.c
Makefile
rt.c	sched/rt: Hide the push_irq_work_func() declaration	2015-11-23 09:25:08 +01:00
sched.h	sched/core: Better document the try_to_wake_up() barriers	2015-12-04 10:26:42 +01:00
stats.c
stats.h
stop_task.c
wait.c	sched/wait: Fix the signal handling fix	2015-12-13 14:30:59 -08:00