[RFC Patch V1 19/30] mm, bnx2i: Use cpu_to_mem()/numa_mem_id() to support memoryless node
Jiang Liu <[email protected]> Fri, 11 Jul 2014 15:37:36 +0800
| Newsgroups | gmane.linux.kernel.mm,gmane.linux.hotplug.devel,gmane.linux.kernel,gmane.linux.scsi |
|---|---|
| Message-ID | <[email protected]> |
When CONFIG_HAVE_MEMORYLESS_NODES is enabled, cpu_to_node()/numa_node_id() may return a node without memory, and later cause system failure/panic when calling kmalloc_node() and friends with returned node id. So use cpu_to_mem()/numa_mem_id() instead to get the nearest node with memory for the/current cpu. If CONFIG_HAVE_MEMORYLESS_NODES is disabled, cpu_to_mem()/numa_mem_id() is the same as cpu_to_node()/numa_node_id(). Signed-off-by: Jiang Liu <[email protected]> --- drivers/scsi/bnx2i/bnx2i_init.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/bnx2i/bnx2i_init.c b/drivers/scsi/bnx2i/bnx2i_init.c index 80c03b452d61..f67a5a63134e 100644 --- a/drivers/scsi/bnx2i/bnx2i_init.c +++ b/drivers/scsi/bnx2i/bnx2i_init.c @@ -423,7 +423,7 @@ static void bnx2i_percpu_thread_create(unsigned int cpu) p = &per_cpu(bnx2i_percpu, cpu); thread = kthread_create_on_node(bnx2i_percpu_io_thread, (void *)p, - cpu_to_node(cpu), + cpu_to_mem(cpu), "bnx2i_thread/%d", cpu); /* bind thread to the cpu */ if (likely(!IS_ERR(thread))) { -- 1.7.10.4 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to [email protected]. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"[email protected]"> [email protected] </a>