Address_space_operations write_begin vs prepare_write ?

Address_space_operations write_begin vs prepare_write ?

[Kunal Baweja]

Hi, I am new to kernel coding and right now trying to implement address
space operations on top of WrapFS. I noticed that the
address_space_operations declaration has a field write_begin where I was
expecting prepare_write. Is it just a change of name with newer versions of
kernel or is there some significant change that has been made to it ?

Thanks
*Kunal Baweja*

Undergraduate B.E. (Hons.) Computer Science
Birla Institute Of Technology & Science, Pilani
K.K. Birla Goa Campus
+91 9049655665
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Address_space_operations write_begin vs prepare_write ?

[Saket Sinha]

Hi Kunal,

Have a look at this which explains your question --
http://lwn.net/Articles/254856/

The kernel apis change might change from each version.

To keep a tap on them for your driver or the driver you are following, keep
looking at the changelogs that comes with each new kernel release version -
https://www.kernel.org/pub/linux/kernel/v3.0/


Regards,
Saket Sinha





On Mon, Jan 19, 2015 at 8:58 PM, Kunal Baweja <bawejakunal15@gmail.com>
wrote:

> Hi, I am new to kernel coding and right now trying to implement address
> space operations on top of WrapFS. I noticed that the
> address_space_operations declaration has a field write_begin where I was
> expecting prepare_write. Is it just a change of name with newer versions of
> kernel or is there some significant change that has been made to it ?
>
> Thanks
> *Kunal Baweja*
>
> Undergraduate B.E. (Hons.) Computer Science
> Birla Institute Of Technology & Science, Pilani
> K.K. Birla Goa Campus
> +91 9049655665
>
> _______________________________________________
> Kernelnewbies mailing list
> Kernelnewbies at kernelnewbies.org
> http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
>
>
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Address_space_operations write_begin vs prepare_write ?

[Kunal Baweja]

Thanks a lot :)

*Kunal Baweja*

Undergraduate B.E. (Hons.) Computer Science
Birla Institute Of Technology & Science, Pilani
K.K. Birla Goa Campus
+91 9049655665

On Mon, Jan 19, 2015 at 9:24 PM, Saket Sinha <saket.sinha89@gmail.com>
wrote:

> Hi Kunal,
>
> Have a look at this which explains your question --
> http://lwn.net/Articles/254856/
>
> The kernel apis change might change from each version.
>
> To keep a tap on them for your driver or the driver you are following,
> keep looking at the changelogs that comes with each new kernel release
> version -
> https://www.kernel.org/pub/linux/kernel/v3.0/
>
>
> Regards,
> Saket Sinha
>
>
>
>
>
> On Mon, Jan 19, 2015 at 8:58 PM, Kunal Baweja <bawejakunal15@gmail.com>
> wrote:
>
>> Hi, I am new to kernel coding and right now trying to implement address
>> space operations on top of WrapFS. I noticed that the
>> address_space_operations declaration has a field write_begin where I was
>> expecting prepare_write. Is it just a change of name with newer versions of
>> kernel or is there some significant change that has been made to it ?
>>
>> Thanks
>> *Kunal Baweja*
>>
>> Undergraduate B.E. (Hons.) Computer Science
>> Birla Institute Of Technology & Science, Pilani
>> K.K. Birla Goa Campus
>> +91 9049655665
>>
>> _______________________________________________
>> Kernelnewbies mailing list
>> Kernelnewbies at kernelnewbies.org
>> http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
>>
>>
>
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