Re: [PATCH] xfs/513: fix 4k allocsize fails on 64k pagesize

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On Sun, Feb 23, 2020 at 08:45:48PM +0800, Eryu Guan wrote:
> On Wed, Feb 19, 2020 at 12:58:18AM +0800, Zorro Lang wrote:
> > The minimal I/O preallocation size is page size. The allocsize=4k
> > always fails on 64k pagesize machine. So change the fs blocksize
> > allocsize test to allocsize=64k.
> > 
> > Signed-off-by: Zorro Lang <zlang@xxxxxxxxxx>
> 
> I think it's better to make the page size auto-detected, and filter out
> the actual size to something like "PAGESIZE" in .out file.
> 
> > ---
> >  tests/xfs/513     | 4 ++--
> >  tests/xfs/513.out | 2 +-
> >  2 files changed, 3 insertions(+), 3 deletions(-)
> > 
> > diff --git a/tests/xfs/513 b/tests/xfs/513
> > index 70bc2f1c..3c3f5163 100755
> > --- a/tests/xfs/513
> > +++ b/tests/xfs/513
> > @@ -178,13 +178,13 @@ do_test()
> >  
> >  echo "** start xfs mount testing ..."
> >  # Test allocsize=size
> > -# Valid values for this option are page size (typically 4KiB) through to 1GiB
> > +# Valid values for this option are page size through to 1GiB
> >  do_mkfs
> >  if [ $dbsize -ge 1024 ];then
> >  	blsize="$((dbsize / 1024))k"
> >  fi
> >  do_test "" pass "allocsize" "false"
> > -do_test "-o allocsize=$blsize" pass "allocsize=$blsize" "true"
> > +do_test "-o allocsize=64k" pass "allocsize=64k" "true"
> 
> do_test "-o allocsize=PAGESIZE" pass "allocsize=PAGESIZE" "true"
> 
> And do_test converts the "PAGESIZE" to actual page size.

I thought about that too, but due to this case only uses PAGESIZE once
at here. So I don't know if it's worth changing much code for that.
And I don't think the PAGESIZE is necessary for this test, 4k and 64k
are all fine for me. The case just trys to make sure 4k/64k can be parsed by
fs_parse().

What do you think?

Thanks,
Zorro

> 
> >  do_test "-o allocsize=1048576k" pass "allocsize=1048576k" "true"
> >  do_test "-o allocsize=$((dbsize / 2))" fail
> >  do_test "-o allocsize=2g" fail
> > diff --git a/tests/xfs/513.out b/tests/xfs/513.out
> > index 9be18dd8..2d9f8384 100644
> > --- a/tests/xfs/513.out
> > +++ b/tests/xfs/513.out
> > @@ -5,7 +5,7 @@ QA output created by 513
> >  ** start xfs mount testing ...
> >  FORMAT: 
> >  TEST: "" "pass" "allocsize" "false"
> > -TEST: "-o allocsize=4k" "pass" "allocsize=4k" "true"
> > +TEST: "-o allocsize=64k" "pass" "allocsize=64k" "true"
> 
> So .out prints "... allocsize=PAGESIZE" ...
> 
> Thanks,
> Eryu
> 
> >  TEST: "-o allocsize=1048576k" "pass" "allocsize=1048576k" "true"
> >  TEST: "-o allocsize=2048" "fail"
> >  TEST: "-o allocsize=2g" "fail"
> > -- 
> > 2.20.1
> > 
> 




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