Hi,
On Sun, 2010-05-16 at 03:06 +0545, vikas chauhan wrote:
> Hi,
> Can any one tell me, what are the
> functions try_module_get and module_put used for ? I couldn't find any
> documentation by googling.
>
>
> Regards,
> Vikas
lxr doesn't reveal much, however a quick scan of kernel src reveals this
comment about try_module_get (sir_dongle.c in /drivers/net/irda, line
91)
/* handling of SMP races with dongle module removal - three cases:
* 1) dongle driver was already unregistered - then we haven't found the
* requested dongle above and are already out here
* 2) the module is already marked deleted but the driver is still
* registered - then the try_module_get() below will fail
* 3) the try_module_get() below succeeds before the module is marked
* deleted - then sys_delete_module() fails and prevents the
removal
* because the module is in use.
*/
HTH
--
Best regards,
Kris
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