RE: [PATCH] generic/469: Skip the test if fallocate keep_size is not supported

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> On Fri, Oct 18, 2019 at 09:02:12AM +0000, misono.tomohiro@xxxxxxxxxxx wrote:
> > > On Wed, Oct 16, 2019 at 07:53:47PM +0900, Misono Tomohiro wrote:
> > > > This test requires fallocate keep_size. So, skip the test if a
> > > > target FS does not support the function to avoid false negative.
> > > >
> > > > Signed-off-by: Misono Tomohiro <misono.tomohiro@xxxxxxxxxxxxxx>
> > >
> > > Would you please paste the false failure you've seen? I can't recall
> > > I hit such failures, and I think fsx would just disable unsupported
> > > operations and don't cause failure, it just prints a message to stderr, and we already redirect stderr to $seqres.full in
> run_fsx in 469.
> >
> > Hi, I just got output mismatch error:
> >
> > $ cat results/generic/469.out.bad
> > QA output created by 469
> > fsx --replay-ops fsxops.0
> > Seed set to 1
> > main: filesystem does not support fallocate mode FALLOC_FL_KEEP_SIZE, disabling!
> > main: filesystem does not support fallocate mode FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE, disabling!
> > main: filesystem does not support fallocate mode FALLOC_FL_ZERO_RANGE, disabling!
> > main: filesystem does not support fallocate mode FALLOC_FL_COLLAPSE_RANGE, disabling!
> > main: filesystem does not support fallocate mode FALLOC_FL_INSERT_RANGE, disabling!
> > main: filesystem does not support clone range, disabling!
> > main: filesystem does not support dedupe range, disabling!
> > fallocate: 0x0 to 0x1000
> > do_preallocate: fallocate: Operation not supported LOG DUMP (1 total
> > operations):
> > 1(  1 mod 256): FALLOC   0x0 thru 0x1000        (0x1000 bytes) PAST_EOF
> > Log of operations saved to "/test1/469.fsx.fsxops"; replay with
> > --replay-ops Correct content saved for comparison (maybe hexdump
> > "/test1/469.fsx" vs "/test1/469.fsx.fsxgood")
> 
> Ah, I recalled that I actually tried to fix this issue before, but Amir didn't like my patch back then :)
> 
> https://spinics.net/lists/fstests/msg07953.html
> 
> Because my patch silently ignored 'keep_size' flag when replaying operations, and look at it again, I don't like it either.
> 
> I think we could just skip the keep_size operations instead of ignoring it.
> 
> Would you please try this patch?
> 
> diff --git a/ltp/fsx.c b/ltp/fsx.c
> index 06d08e4e93f3..ae89bf665db4 100644
> --- a/ltp/fsx.c
> +++ b/ltp/fsx.c
> @@ -2044,6 +2044,9 @@ have_op:
>                 if (!fallocate_calls) {
>                         log4(OP_FALLOCATE, offset, size, FL_SKIPPED);
>                         goto out;
> +               } else if (keep_size && !keep_size_calls) {
> +                       log4(OP_FALLOCATE, offset, size, FL_SKIPPED | FL_KEEP_SIZE);
> +                       goto out;
>                 }
>                 break;
>         case OP_PUNCH_HOLE:
> @@ -2056,6 +2059,9 @@ have_op:
>                 if (!zero_range_calls) {
>                         log4(OP_ZERO_RANGE, offset, size, FL_SKIPPED);
>                         goto out;
> +               } else if (keep_size && !keep_size_calls) {
> +                       log4(OP_ZERO_RANGE, offset, size, FL_SKIPPED | FL_KEEP_SIZE);
> +                       goto out;
>                 }
>                 break;
>         case OP_COLLAPSE_RANGE:
> 

With this patch, 469 just succeeds on my environment (virtiofs).
I'm fine with this approach:
  Reviewed-by: Misono Tomohiro <misono.tomohiro@xxxxxxxxxxxxxx>

Thanks!

> Thanks!
> 
> Eryu
> >
> > Thanks.
> >
> > >
> > > Thanks,
> > > Eryu
> > >
> > > > ---
> > > >  tests/generic/469 | 1 +
> > > >  1 file changed, 1 insertion(+)
> > > >
> > > > diff --git a/tests/generic/469 b/tests/generic/469 index
> > > > 47fdf0cf..0c6f8ae5 100755
> > > > --- a/tests/generic/469
> > > > +++ b/tests/generic/469
> > > > @@ -40,6 +40,7 @@ rm -f $seqres.full  _supported_fs generic
> > > > _supported_os Linux  _require_test
> > > > +_require_xfs_io_command "falloc" "-k"
> > > >
> > > >  run_fsx()
> > > >  {
> > > > --
> > > > 2.21.0
> > > >




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