diff options
| author | Miao Xie <miaox@cn.fujitsu.com> | 2010-03-23 13:35:34 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-04-01 15:58:46 -0700 |
| commit | 893b328f07c17aa84f562fc5566eb524bd76188e (patch) | |
| tree | 6ee34077dea0834d5952d8696c60bd9543747553 /kernel/kthread.c | |
| parent | fa8e8558a6874707d8e30c85bb386f43cb61a6e1 (diff) | |
cpuset: fix the problem that cpuset_mem_spread_node() returns an offline node
commit 5ab116c9349ef52d6fbd2e2917a53f13194b048e upstream.
cpuset_mem_spread_node() returns an offline node, and causes an oops.
This patch fixes it by initializing task->mems_allowed to
node_states[N_HIGH_MEMORY], and updating task->mems_allowed when doing
memory hotplug.
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Acked-by: David Rientjes <rientjes@google.com>
Reported-by: Nick Piggin <npiggin@suse.de>
Tested-by: Nick Piggin <npiggin@suse.de>
Cc: Paul Menage <menage@google.com>
Cc: Li Zefan <lizf@cn.fujitsu.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'kernel/kthread.c')
| -rw-r--r-- | kernel/kthread.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/kthread.c b/kernel/kthread.c index ab7ae57773e1..84027cfffccf 100644 --- a/kernel/kthread.c +++ b/kernel/kthread.c @@ -196,7 +196,7 @@ int kthreadd(void *unused) set_task_comm(tsk, "kthreadd"); ignore_signals(tsk); set_cpus_allowed_ptr(tsk, cpu_all_mask); - set_mems_allowed(node_possible_map); + set_mems_allowed(node_states[N_HIGH_MEMORY]); current->flags |= PF_NOFREEZE | PF_FREEZER_NOSIG; |