[PATCH v3 0/5] refine storing NULL

[Wei Yang]

On Fri, Oct 18, 2024 at 02:03:55PM -0400, Liam R. Howlett wrote:
>* Wei Yang <richard.weiyang at gmail.com> [241017 22:40]:
>> The original thread[1] thoughts it is a problem in mas_new_root(). But after                                                                                                                                 
>> discussion, this should be an improvement on storing NULL.                                                                                                                                                   
>>                                                                                                                                                                                                              
>> Patch 1/2 preparation for refine.                                                                                                                                                                            
>>                                                                                                                                                                                                              
>> Patch 3 remove redundant check in mas_new_root().                                                                                                                                                            
>>                                                                                                                                                                                                              
>> Patch 4 refine mas_store_root() to improve memory efficiency and remove                                                                                                                                     
>> possible consecutive NULL slot.                                                                                                                                                                              
>>                                                                                                                                                                                                              
>> Patch 5 adds a test for storing NULL.                                                                                                                                                                        
>
>This series fails to apply to akpm/mm-unstable today.
>
>What are you based off?
>

I based on yesterday's master

4d939780b705 2024-10-17 Merge tag 'mm-hotfixes-stable-2024-10-17-16-08' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Do you prefer to based on latest akpm/mm-unstable in the following spin?

>>                                                                                                                                                                                                              
>> [1]: https://lkml.kernel.org/r/20241015233909.23592-1-richard.weiyang@gmail.com
>> 
>> v3:
>>   patch 4 move the change into mas_store_root()
>>   patch 5 move test into lib/test_maple_tree.c
>> 
>> Wei Yang (5):
>>   maple_tree: print empty for an empty tree on mt_dump()
>>   maple_tree: the return value of mas_root_expand() is not used
>>   maple_tree: not necessary to check index/last again
>>   maple_tree: refine mas_store_root() on storing NULL
>>   maple_tree: add a test checking storing null
>> 
>>  lib/maple_tree.c      | 20 ++++++----
>>  lib/test_maple_tree.c | 90 +++++++++++++++++++++++++++++++++++++++++++
>>  2 files changed, 103 insertions(+), 7 deletions(-)
>> 
>> -- 
>> 2.34.1
>> 

-- 
Wei Yang
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