Xiaotian Feng <xtf...@gmail.com> writes: > On Sat, Jul 27, 2013 at 3:26 PM, Xiaotian Feng <xtf...@gmail.com> wrote: >> If doms_new is NULL, partition_sched_domains() will reset ndoms_cur >> to 0, and free old sched domains with free_sched_domains(doms_cur, >> ndoms_cur). >> As ndoms_cur is 0, the cpumask will not be freed. >> >> Signed-off-by: Xiaotian Feng <xtf...@gmail.com> >> Cc: Ingo Molnar <mi...@redhat.com> >> Cc: Peter Zijlstra <pet...@infradead.org> >> Cc: linux-kernel@vger.kernel.org > > Any comments? Cc'ed Rusty.
The code is a little convoluted, but your fix is logical. >> --- >> kernel/sched/core.c | 5 +++-- >> 1 file changed, 3 insertions(+), 2 deletions(-) >> >> diff --git a/kernel/sched/core.c b/kernel/sched/core.c >> index b7c32cb..3d6c57b 100644 >> --- a/kernel/sched/core.c >> +++ b/kernel/sched/core.c >> @@ -6184,8 +6184,9 @@ match1: >> ; >> } >> >> + n= ndoms_cur; You're missing a ' ' here: n = ndoms_cur; >> if (doms_new == NULL) { >> - ndoms_cur = 0; >> + n = 0; >> doms_new = &fallback_doms; >> cpumask_andnot(doms_new[0], cpu_active_mask, >> cpu_isolated_map); >> WARN_ON_ONCE(dattr_new); >> @@ -6193,7 +6194,7 @@ match1: >> >> /* Build new domains */ >> for (i = 0; i < ndoms_new; i++) { >> - for (j = 0; j < ndoms_cur && !new_topology; j++) { >> + for (j = 0; j < n && !new_topology; j++) { >> if (cpumask_equal(doms_new[i], doms_cur[j]) >> && dattrs_equal(dattr_new, i, dattr_cur, j)) >> goto match2; >> -- >> 1.7.9.6 (Apple Git-31.1) >> Cheers, Rusty. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/