On Thu 2016-12-08 11:49:01, Luis R. Rodriguez wrote:
> Just use the simplified rate limit printk when the max modprobe
> limit is reached, while at it throw out a bone should the error
> be triggered.
>
> Signed-off-by: Luis R. Rodriguez <mcgrof@xxxxxxxxxx>
> ---
> kernel/kmod.c | 10 ++--------
> 1 file changed, 2 insertions(+), 8 deletions(-)
>
> diff --git a/kernel/kmod.c b/kernel/kmod.c
> index 09cf35a2075a..ef65f4c3578a 100644
> --- a/kernel/kmod.c
> +++ b/kernel/kmod.c
> @@ -158,7 +158,6 @@ int __request_module(bool wait, const char *fmt, ...)
> va_list args;
> char module_name[MODULE_NAME_LEN];
> int ret;
> - static int kmod_loop_msg;
>
> /*
> * We don't allow synchronous module loading from async. Module
> @@ -183,13 +182,8 @@ int __request_module(bool wait, const char *fmt, ...)
>
> ret = kmod_umh_threads_get();
> if (ret) {
> - /* We may be blaming an innocent here, but unlikely */
> - if (kmod_loop_msg < 5) {
> - printk(KERN_ERR
> - "request_module: runaway loop modprobe %s\n",
> - module_name);
> - kmod_loop_msg++;
> - }
> + pr_err_ratelimited("request_module: modprobe limit (%u) reached with module %s\n",
> + max_modprobes, module_name);
I like this change. I would only be even more descriptive in which
limit is reached. Something like
pr_err_ratelimited("request_module: module \"%s\" reached limit (%u) of concurrent modprobe calls\n",
module_name, max_modprobes);
Either way, feel free to add:
Reviewed-by: Petr Mladek <pmladek@xxxxxxxx>
Best Regards,
Petr
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