Re: [PATCH v3] powerpc/fadump: sysfs for fadump memory reservation

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On 8/27/19 11:32 AM, Hari Bathini wrote:
> 
> 
> On 27/08/19 8:49 AM, Michael Ellerman wrote:
>> Hari Bathini <hbathini@xxxxxxxxxxxxx> writes:
>>> On 26/08/19 4:14 PM, Sourabh Jain wrote:
>>>> On 8/26/19 3:46 PM, Sourabh Jain wrote:
>>>>> On 8/26/19 3:29 PM, Hari Bathini wrote:
>>>>>> On 10/08/19 11:29 PM, Sourabh Jain wrote:
>>>>>>> Add a sys interface to allow querying the memory reserved by
>>>>>>> fadump for saving the crash dump.
>>>>>>>
>>>>>>> Add an ABI doc entry for new sysfs interface.
>>>>>>>    - /sys/kernel/fadump_mem_reserved
>>>>>>>
>>>>>>> Signed-off-by: Sourabh Jain <sourabhjain@xxxxxxxxxxxxx>
>>>>>>> ---
>>>>>>> Changelog:
>>>>>>> v1 -> v2:
>>>>>>>   - Added ABI doc for new sysfs interface.
>>>>>>>
>>>>>>> v2 -> v3:
>>>>>>>   - Updated the ABI documentation.
>>>>>>> ---
>>>>>>>
>>>>>>>  Documentation/ABI/testing/sysfs-kernel-fadump    |  6 ++++++
>>>>>>
>>>>>> Shouldn't this be Documentation/ABI/testing/sysfs-kernel-fadump_mem_reserved?
>>>>
>>>> How about documenting fadump_mem_reserved and other sysfs attributes suggested
>>>> by you in a single file Documentation/ABI/testing/sysfs-kernel-fadump?
>>>
>>> I wouldn't mind that but please do check if it is breaking a convention..
>>
>> AIUI a file named like that would hold the documentation for the files
>> inside a directory called /sys/kernel/fadump.
>>
>> And in fact that's probably where these files should live, rather than
>> just dropped directly into /sys/kernel.
> Michael, could that be corrected now by introducing new sysfs files for FADump in
> /sys/kernel/fadump/.
> 
> Also, duplicating current /sys/kernel/fadump_* files as /sys/kernel/fadump/* files
> & eventually dropping /sys/kernel/fadump_* files sometime later..


Sent a patch series that adds fadump_mem_reserved sysfs file along with reorganizing
the existing fadump sysfs files.

Patch series available here:
https://lists.ozlabs.org/pipermail/linuxppc-dev/2019-September/197100.html

- Sourabh Jain




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