On Thu, 27 Dec 2012, Liu Hui-R64343 wrote:
> diff --git a/mm/compaction.c b/mm/compaction.c
> index c4bc5ac..d3cb27f 100644
> --- a/mm/compaction.c
> +++ b/mm/compaction.c
> @@ -732,8 +732,10 @@ int sysctl_compact_memory;
> int sysctl_compaction_handler(struct ctl_table *table, int write,
> void __user *buffer, size_t *length, loff_t *ppos)
> {
> - if (write)
> - return compact_nodes();
> + if (write) {
> + compact_nodes();
> + return *length;
> + }
>
> return 0;
> }
No need to return the length at all, simply change compact_nodes() to
return void, remove the return value, and do
if (write)
compact_nodes();
return 0;
and it should be fixed. Could you write a changelog that shows the before
and after behavior (not necessarily the implementation), sign-off the
patch as described in Documentation/SubmittingPatches, running
scripts/get_maintainer.pl on your new patch file, and sending it to
all addresses that are listed?
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