diff options
| author | Steven Rostedt (Red Hat) <rostedt@goodmis.org> | 2014-04-13 09:34:53 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-06-11 11:54:08 -0700 |
| commit | e991c3535507139fd2e8079113131557257f725e (patch) | |
| tree | 6cd6bfe005e2e6e29264e1670bf94ad9fa72f9f4 /kernel/sched/cpudeadline.c | |
| parent | a1bc295d7a4be9425bbeecc005d0cd013eb46cea (diff) | |
sched: Use CPUPRI_NR_PRIORITIES instead of MAX_RT_PRIO in cpupri check
commit 6227cb00cc120f9a43ce8313bb0475ddabcb7d01 upstream.
The check at the beginning of cpupri_find() makes sure that the task_pri
variable does not exceed the cp->pri_to_cpu array length. But that length
is CPUPRI_NR_PRIORITIES not MAX_RT_PRIO, where it will miss the last two
priorities in that array.
As task_pri is computed from convert_prio() which should never be bigger
than CPUPRI_NR_PRIORITIES, if the check should cause a panic if it is
hit.
Reported-by: Mike Galbraith <umgwanakikbuti@gmail.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1397015410.5212.13.camel@marge.simpson.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'kernel/sched/cpudeadline.c')
0 files changed, 0 insertions, 0 deletions