On Fri, 28 Feb 2014, Andreas Dilger wrote:
> Date: Fri, 28 Feb 2014 12:08:47 -0700
> From: Andreas Dilger <adilger@xxxxxxxxx>
> To: Lukas Czerner <lczerner@xxxxxxxxxx>
> Cc: linux-ext4@xxxxxxxxxxxxxxx, xfs@xxxxxxxxxxx, linux-fsdevel@xxxxxxxxxxxxxxx
> Subject: Re: [PATCH 7/8] xfstests: Add fallocate zero range operation to fsx
>
> On Feb 28, 2014, at 9:11 AM, Lukas Czerner <lczerner@xxxxxxxxxx> wrote:
> > This commit adds fallocate FALLOC_FL_ZERO_RANGE support for fsx.
>
> It looks like this patch breaks the option handling for these
> fallocate features.
>
> > int fallocate_calls = 1; /* -F flag disables */
> > int punch_hole_calls = 1; /* -H flag disables */
> > +int zero_range_calls = 1; /* -z flag disables */
>
> So these fallocate tests are on by default...
>
> > +int
> > +test_fallocate(int mode)
> > {
> > #ifdef HAVE_LINUX_FALLOC_H
> > + int ret = 0;
> > if (!lite && fallocate_calls) {
^^^^^^^^^^^^^^^
Right, I forgot about this.
> > + if (fallocate(fd, mode, 0, 1) && errno == EOPNOTSUPP) {
> > if(!quiet)
> > warn("main: filesystem does not support fallocate, disabling\n");
> > } else {
> > + ret = 1;
> > ftruncate(fd, 0);
> > }
> > }
> > #endif
> > }
>
> And this returns 1 or 0 depending if they are supported or not...
>
> > + while ((ch = getopt(argc, argv, "b:c:dfl:m:no:p:qr:s:t:w:xyAD:FHzLN:OP:RS:WZ"))
> > != EOF)
> > switch (ch) {
> > case 'H':
> > punch_hole_calls = 0;
> > break;
> > + case 'z':
> > + zero_range_calls = 0;
> > + break;
>
> And the option parsing sets the values to zero if they are disabled,
> so far, so good...
>
> > + fallocate_calls = test_fallocate(0);
> > + punch_hole_calls = test_fallocate(FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE);
> > + zero_range_calls = test_fallocate(FALLOC_FL_ZERO_RANGE);
>
> But here, the values set by option parsing are clobbered and the
> tests are only enabled or disabled depending on whether the kernel
> supports that feature or not. I think you need something like:
Right, and the 'fallocate_calls' test needs to disappear from
test_fallocate().
Thanks!
-Lukas
>
> if (fallocate_calls)
> fallocate_calls = test_fallocate(0);
> if (punch_hole_calls)
> punch_hole_calls = test_fallocate(FALLOC_FL_PUNCH_HOLE |
> FALLOC_FL_KEEP_SIZE);
> if (zero_range_calls)
> zero_range_calls = test_fallocate(FALLOC_FL_ZERO_RANGE);
>
> Cheers, Andreas
>
>
>
>
>
>
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