diff mbox series

[RFC,10/29] memblock: replace __alloc_bootmem_node_nopanic with memblock_alloc_try_nid_nopanic

Message ID 1536163184-26356-11-git-send-email-rppt@linux.vnet.ibm.com (mailing list archive)
State New, archived
Headers show
Series mm: remove bootmem allocator | expand

Commit Message

Mike Rapoport Sept. 5, 2018, 3:59 p.m. UTC
The __alloc_bootmem_node_nopanic() is used only once, there is no reason to
add a wrapper for memblock_alloc_try_nid_nopanic for it.

Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
---
 arch/x86/kernel/setup_percpu.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

Comments

Michal Hocko Sept. 6, 2018, 7:49 a.m. UTC | #1
On Wed 05-09-18 18:59:25, Mike Rapoport wrote:
> The __alloc_bootmem_node_nopanic() is used only once, there is no reason to
> add a wrapper for memblock_alloc_try_nid_nopanic for it.

OK, it took me a bit longer to see they are equivalent. Both zero the
memory and fallback to a different node if the given one doesn't have a
proper range. So good. Lack of proper documentation didn't really help.
 
> Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>

Acked-by: Michal Hocko <mhocko@suse.com>

> ---
>  arch/x86/kernel/setup_percpu.c | 6 ++++--
>  1 file changed, 4 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/x86/kernel/setup_percpu.c b/arch/x86/kernel/setup_percpu.c
> index ea554f8..67d48e26 100644
> --- a/arch/x86/kernel/setup_percpu.c
> +++ b/arch/x86/kernel/setup_percpu.c
> @@ -112,8 +112,10 @@ static void * __init pcpu_alloc_bootmem(unsigned int cpu, unsigned long size,
>  		pr_debug("per cpu data for cpu%d %lu bytes at %016lx\n",
>  			 cpu, size, __pa(ptr));
>  	} else {
> -		ptr = __alloc_bootmem_node_nopanic(NODE_DATA(node),
> -						   size, align, goal);
> +		ptr = memblock_alloc_try_nid_nopanic(size, align, goal,
> +						     BOOTMEM_ALLOC_ACCESSIBLE,
> +						     node);
> +
>  		pr_debug("per cpu data for cpu%d %lu bytes on node%d at %016lx\n",
>  			 cpu, size, node, __pa(ptr));
>  	}
> -- 
> 2.7.4
diff mbox series

Patch

diff --git a/arch/x86/kernel/setup_percpu.c b/arch/x86/kernel/setup_percpu.c
index ea554f8..67d48e26 100644
--- a/arch/x86/kernel/setup_percpu.c
+++ b/arch/x86/kernel/setup_percpu.c
@@ -112,8 +112,10 @@  static void * __init pcpu_alloc_bootmem(unsigned int cpu, unsigned long size,
 		pr_debug("per cpu data for cpu%d %lu bytes at %016lx\n",
 			 cpu, size, __pa(ptr));
 	} else {
-		ptr = __alloc_bootmem_node_nopanic(NODE_DATA(node),
-						   size, align, goal);
+		ptr = memblock_alloc_try_nid_nopanic(size, align, goal,
+						     BOOTMEM_ALLOC_ACCESSIBLE,
+						     node);
+
 		pr_debug("per cpu data for cpu%d %lu bytes on node%d at %016lx\n",
 			 cpu, size, node, __pa(ptr));
 	}