Re: [PATCH v1 2/9] selftests/mm: Give scripts execute permission

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On Thu, 13 Jul 2023 16:39:33 +0200 David Hildenbrand <david@xxxxxxxxxx> wrote:

> On 13.07.23 15:54, Ryan Roberts wrote:
> > When run under run_vmtests.sh, test scripts were failing to run with
> > "permission denied" due to the scripts not being executable.
> > 
> > It is also annoying not to be able to directly invoke run_vmtests.sh,
> > which is solved by giving also it the execute permission.
> > 
> > Signed-off-by: Ryan Roberts <ryan.roberts@xxxxxxx>
> > ---
> >   tools/testing/selftests/mm/charge_reserved_hugetlb.sh  | 0
> >   tools/testing/selftests/mm/check_config.sh             | 0
> >   tools/testing/selftests/mm/hugetlb_reparenting_test.sh | 0
> >   tools/testing/selftests/mm/run_vmtests.sh              | 0
> >   tools/testing/selftests/mm/test_hmm.sh                 | 0
> >   tools/testing/selftests/mm/test_vmalloc.sh             | 0
> >   tools/testing/selftests/mm/va_high_addr_switch.sh      | 0
> >   tools/testing/selftests/mm/write_hugetlb_memory.sh     | 0
> >   8 files changed, 0 insertions(+), 0 deletions(-)
> >   mode change 100644 => 100755 tools/testing/selftests/mm/charge_reserved_hugetlb.sh
> >   mode change 100644 => 100755 tools/testing/selftests/mm/check_config.sh
> >   mode change 100644 => 100755 tools/testing/selftests/mm/hugetlb_reparenting_test.sh
> >   mode change 100644 => 100755 tools/testing/selftests/mm/run_vmtests.sh
> >   mode change 100644 => 100755 tools/testing/selftests/mm/test_hmm.sh
> >   mode change 100644 => 100755 tools/testing/selftests/mm/test_vmalloc.sh
> >   mode change 100644 => 100755 tools/testing/selftests/mm/va_high_addr_switch.sh
> >   mode change 100644 => 100755 tools/testing/selftests/mm/write_hugetlb_memory.sh
> > 
> > diff --git a/tools/testing/selftests/mm/charge_reserved_hugetlb.sh b/tools/testing/selftests/mm/charge_reserved_hugetlb.sh
> > old mode 100644
> > new mode 100755
> > diff --git a/tools/testing/selftests/mm/check_config.sh b/tools/testing/selftests/mm/check_config.sh
> > old mode 100644
> > new mode 100755
> > diff --git a/tools/testing/selftests/mm/hugetlb_reparenting_test.sh b/tools/testing/selftests/mm/hugetlb_reparenting_test.sh
> > old mode 100644
> > new mode 100755
> > diff --git a/tools/testing/selftests/mm/run_vmtests.sh b/tools/testing/selftests/mm/run_vmtests.sh
> > old mode 100644
> > new mode 100755
> > diff --git a/tools/testing/selftests/mm/test_hmm.sh b/tools/testing/selftests/mm/test_hmm.sh
> > old mode 100644
> > new mode 100755
> > diff --git a/tools/testing/selftests/mm/test_vmalloc.sh b/tools/testing/selftests/mm/test_vmalloc.sh
> > old mode 100644
> > new mode 100755
> > diff --git a/tools/testing/selftests/mm/va_high_addr_switch.sh b/tools/testing/selftests/mm/va_high_addr_switch.sh
> > old mode 100644
> > new mode 100755
> > diff --git a/tools/testing/selftests/mm/write_hugetlb_memory.sh b/tools/testing/selftests/mm/write_hugetlb_memory.sh
> > old mode 100644
> > new mode 100755
> 
> Sounds reasonable to me.
> 
> Probably due to:
> 
> commit baa489fabd01596d5426d6e112b34ba5fb59ab82
> Author: SeongJae Park <sj@xxxxxxxxxx>
> Date:   Tue Jan 3 18:07:53 2023 +0000
> 
>      selftests/vm: rename selftests/vm to selftests/mm
>      
>      Rename selftets/vm to selftests/mm for being more consistent with the
>      code, documentation, and tools directories, and won't be confused with
>      virtual machines.
> 
> 
> and indeed, it contains
> 
> diff --git a/tools/testing/selftests/vm/run_vmtests.sh b/tools/testing/selftests/mm/run_vmtests.sh
> old mode 100755
> new mode 100644
> similarity index 100%
> rename from tools/testing/selftests/vm/run_vmtests.sh
> rename to tools/testing/selftests/mm/run_vmtests.sh

Thank you for tracking this and kindly Cc-ing me!  I'd like to clarify a little
bit more, though.  The permission change has made by the commit as you found.
Nevertheless, the submitted version[1] of the patch didn't change the
permission.  I guess the change was made while managing it via some file
permission unsupported patches management tool.

I had a similar issue with DAMON selftest and sent a patch restoring the
permission.  Greg suggested me to update the framework instead, to support such
management tool[2], so I made it[3].  It recently also merged into 5.15.y for
DAMON selftests[4].

I have no strong opinion about whether we need to keep the permission or it's
good to have no execute permission since kselftest framework supports it.  I
just wanted to clarify the events I've shown.  Please correct me if I missed or
wrong something.  Cc-ing Greg, since he might have an opinion.

[1] https://lore.kernel.org/all/20230103180754.129637-5-sj@xxxxxxxxxx/
[2] https://lore.kernel.org/mm-commits/YRJisBs9AunccCD4@xxxxxxxxx/
[3] https://lore.kernel.org/all/20210810164534.25902-1-sj38.park@xxxxxxxxx/
[4] https://lore.kernel.org/stable/2023042743-cheesy-parasitic-206d@gregkh/


Thanks,
SJ

> 
> 
> Reviewed-by: David Hildenbrand <david@xxxxxxxxxx>
> 
> -- 
> Cheers,
> 
> David / dhildenb
> 
> 
> 




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