Re: [PATCH] call_usermodehelper hang

[Brian King <brking@us.ibm.com>]

I applied and tested the new patches in the mm tree and it works fine
for me.

Thanks

-Brian


Andrew Morton wrote:
> Brian King <brking@us.ibm.com> wrote:
> 
>>>>Ok, you've convinced me of the mess that would cause.  So what should we
>>>
>> >> do to help fix this?  Serialize call_usermodehelper()?
>> > 
>> > 
>> > May as well bring back call_usermodehelper_async() I guess.
>> > 
>> > 
>> > There are two patches here, and they are totally untested...
>>
>> I loaded the patches on my ppc64 box and they worked fine after I fixed a compile
>> bug. The attached patch fixes the compile bug and changes the call_usermodehelper
>> call in kset_hotplug to call_usermodehelper_async.
> 
> 
> yup, thanks.  I've changed the patch in my tree so that we always perform
> the fully-async operation if call_usermodehelper() is passed "wait=0".  It
> gets the new code some more testing and keeps the kernel API simpler.
> 
> 


-- 
Brian King
eServer Storage I/O
IBM Linux Technology Center



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