Re: [PATCH] check stx_dio_offset_align to determine if DIO is supported

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On Mon, Oct 07, 2024 at 01:14:09PM +0100, Filipe Manana wrote:
> On Mon, Sep 23, 2024 at 2:46 PM Zorro Lang <zlang@xxxxxxxxxx> wrote:
> >
> > On Mon, Sep 23, 2024 at 12:01:22PM +0100, Filipe Manana wrote:
> > > On Mon, Sep 23, 2024 at 10:06 AM Wu Bo <wubo.oduw@xxxxxxxxx> wrote:
> > > >
> > > > According to the statx manual, if stx_dio_offset_align is 0, it
> > > > indicates that Direct I/O (DIO) is not supported on this file.
> > >
> > > There's already a patch for this:
> > >
> > > https://lore.kernel.org/fstests/20240911035333.364961-1-chao@xxxxxxxxxx/
> > >
> > > (but not merged yet)
> >
> > Thanks Filipe. Yes, this's fixed by Chao Yu. You can check it in
> > "patches-in-queue" branch, it'll be merged to for-next soon (this
> > week I hope).
> 
> It missed the last update and it's still not in the "patches-in-queue" branch.

Yes, sorry I missed that patch, my bad. It'll be in the release of this weekend,
I'm sure about that :)

> 
> Thanks.
> 
> >
> > Thanks,
> > Zorro
> >
> > >
> > > Thanks.
> > >
> > > >
> > > > Signed-off-by: Wu Bo <wubo.oduw@xxxxxxxxx>
> > > > ---
> > > >  src/min_dio_alignment.c | 2 +-
> > > >  1 file changed, 1 insertion(+), 1 deletion(-)
> > > >
> > > > diff --git a/src/min_dio_alignment.c b/src/min_dio_alignment.c
> > > > index 131f6023..c50ae8c3 100644
> > > > --- a/src/min_dio_alignment.c
> > > > +++ b/src/min_dio_alignment.c
> > > > @@ -28,7 +28,7 @@ static int min_dio_alignment(const char *mntpnt, const char *devname)
> > > >         fd = open(mntpnt, O_TMPFILE | O_RDWR | O_EXCL, 0600);
> > > >         if (fd >= 0 &&
> > > >             xfstests_statx(fd, "", AT_EMPTY_PATH, STATX_DIOALIGN, &stx) == 0 &&
> > > > -           (stx.stx_mask & STATX_DIOALIGN))
> > > > +           (stx.stx_mask & STATX_DIOALIGN) && stx.stx_dio_offset_align)
> > > >                 return stx.stx_dio_offset_align;
> > > >
> > > >         /*
> > > > --
> > > > 2.34.1
> > > >
> > > >
> > >
> >
> 





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