Re: MOD_INC_USE_COUNT

["linux-os \(Dick Johnson\)" <linux-os@analogic.com>]

On Thu, 10 Nov 2005, Tony wrote:

> linux-os (Dick Johnson) wrote:
>> On Thu, 10 Nov 2005, Tony wrote:
>>
>>
>>> Hello All,
>>> Usually, when a net_device->open is called, it will MOD_INC_USE_COUNT on
>>> success. It is removed since 2.5.x, then should I increase the use
>>> count? how? thx.
>>
>>
>> Gone! Don't use INC or DEC_USE_COUNT anymore. The kernel takes
>> care of that for you. Also, the count shown in `lsmod` no longer
>> means anything you can use programmaticly.
>>
>> Cheers,
>> Dick Johnson
>> Penguin : Linux version 2.6.13.4 on an i686 machine (5589.55 BogoMips).
>> Warning : 98.36% of all statistics are fiction.
>>
>>
> But when the module is used by a net_device(interface is up), rmmod also
> works. Strange, isn't it?

Yes, it does something unexpected, i.e., violates the tenant of
least surprise. It shuts down the network interface, doesn't even
log the event. It just __does__ it!  At least M$ would put the
information in the "event viewer".
>

Cheers,
Dick Johnson
Penguin : Linux version 2.6.13.4 on an i686 machine (5589.55 BogoMips).
Warning : 98.36% of all statistics are fiction.
.

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