File-system driver issue

[Rohan Puri]

On Wed, Jun 26, 2013 at 10:32 AM, Saket Sinha <saket.sinha89 at gmail.com> wrote:
> Can you help me find the equivalent entry(I mean arch-specific definition)
> of current in 3.8.3 kernel which I think is missing.
> I think because of all this I am getting some strange warnings and error.
>
>
> On Wed, Jun 26, 2013 at 10:28 AM, Rohan Puri <rohan.puri15 at gmail.com> wrote:
>>
>> On Wed, Jun 26, 2013 at 1:44 AM, Saket Sinha <saket.sinha89 at gmail.com>
>> wrote:
>> > I have to port a driver from 2.6.18 to 3.8.3
>> >
>> > Look at the below declaration of current
>> > http://lxr.free-electrons.com/source/scripts/kconfig/gconf.c#L62
>> > Where struct menu is
>> > http://lxr.free-electrons.com/source/scripts/kconfig/expr.h#L159
>> >
>> > The above one is in kconfig while the lower one is in the kernel. So
>> > would
>> > they be able to affect each other? I guess NO
>> >
>> > NOW in the driver to be ported-
>> > current is defined as:
>> > struct task_struct *task = current;
>> >
>> > but is still able to excess  the field members of task_struct
>> >  http://lxr.linux.no/linux+v2.6.18/include/linux/sched.h#L767
>> > like
>> > attr.ia_uid = current->uid;
>> > attr.ia_gid = current->gid;
>> >
>> > though it has not been initialized or assigned or typecasted to this
>> > task_struct.
>> > HOW?
>> >
>> > I searched on the entire lxr but could not find the solution.
>> > Kindly help.
>> > PS: This driver is built on 2.6.28 kernel so use lxr from 2.6.18 kernel
>> > only
>> > like
>> >  http://lxr.linux.no/linux+v2.6.18/
>> >
>> >
>> > _______________________________________________
>> > Kernelnewbies mailing list
>> > Kernelnewbies at kernelnewbies.org
>> > http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
>> >
>> Hi Saket,
>>
>> Its arch specifc, check file
>> http://lxr.linux.no/#linux+v2.6.18/include/asm-x86_64/current.h#L15
>>
>> - Rohan
>
>
>
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For 3.8.3 its here :
http://lxr.linux.no/#linux+v3.8.3/arch/x86/include/asm/current.h#L17

- Rohan