Re: [PATCH v4 1/2] mm: huge_memory: a new debugfs interface for splitting THP tests.

2021-03-17 Thread Zi Yan
On 16 Mar 2021, at 18:23, Yang Shi wrote: > On Mon, Mar 15, 2021 at 1:34 PM Zi Yan wrote: >> >> From: Zi Yan >> >> We did not have a direct user interface of splitting the compound page >> backing a THP and there is no need unless we want to expose the THP >> implementation details to users. Mak

Re: [PATCH v4 1/2] mm: huge_memory: a new debugfs interface for splitting THP tests.

2021-03-16 Thread Yang Shi
On Mon, Mar 15, 2021 at 1:34 PM Zi Yan wrote: > > From: Zi Yan > > We did not have a direct user interface of splitting the compound page > backing a THP and there is no need unless we want to expose the THP > implementation details to users. Make /split_huge_pages accept > a new command to do th

Re: [PATCH v4 1/2] mm: huge_memory: a new debugfs interface for splitting THP tests.

2021-03-15 Thread Zi Yan
On 15 Mar 2021, at 20:36, kernel test robot wrote: > Hi Zi, > > Thank you for the patch! Perhaps something to improve: > > [auto build test WARNING on kselftest/next] > [also build test WARNING on linux/master linus/master v5.12-rc3] > [cannot apply to hnaz-linux-mm/master next-20210315] > [If you

Re: [PATCH v4 1/2] mm: huge_memory: a new debugfs interface for splitting THP tests.

2021-03-15 Thread kernel test robot
Hi Zi, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on kselftest/next] [also build test WARNING on linux/master linus/master v5.12-rc3] [cannot apply to hnaz-linux-mm/master next-20210315] [If your patch is applied to the wrong git tree, kindly drop us a note. A

[PATCH v4 1/2] mm: huge_memory: a new debugfs interface for splitting THP tests.

2021-03-15 Thread Zi Yan
From: Zi Yan We did not have a direct user interface of splitting the compound page backing a THP and there is no need unless we want to expose the THP implementation details to users. Make /split_huge_pages accept a new command to do that. By writing ",," to /split_huge_pages, THPs within the g