aboutsummaryrefslogtreecommitdiff
path: root/block/blk-merge.c
diff options
context:
space:
mode:
authorSteven Rostedt (Red Hat) <rostedt@goodmis.org>2014-04-13 09:34:53 -0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-06-11 12:03:21 -0700
commite58d78f941db4f728cd05335be7c90246ab83e7c (patch)
tree6de54b9610363baf39710cc75e08cd2213e87abc /block/blk-merge.c
parentc2f7eb8029e23c4f5445340d8fc0d05367538e6d (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 'block/blk-merge.c')
0 files changed, 0 insertions, 0 deletions