On Wed, Aug 23, 2023 at 10:20 AM Xiao Ni <xni@xxxxxxxxxx> wrote:
>
> On Sun, Aug 20, 2023 at 5:13 PM Yu Kuai <yukuai1@xxxxxxxxxxxxxxx> wrote:
> >
> > From: Yu Kuai <yukuai3@xxxxxxxxxx>
> >
> > There are no functional changes, just to make the code simpler and
> > prepare to delay remove_and_add_spares() to md_start_sync().
> >
> > Signed-off-by: Yu Kuai <yukuai3@xxxxxxxxxx>
> > ---
> > drivers/md/md.c | 15 ++++++++++-----
> > 1 file changed, 10 insertions(+), 5 deletions(-)
> >
> > diff --git a/drivers/md/md.c b/drivers/md/md.c
> > index ceace5ffadd6..11d27c934fdd 100644
> > --- a/drivers/md/md.c
> > +++ b/drivers/md/md.c
> > @@ -9169,6 +9169,14 @@ static bool rdev_removeable(struct md_rdev *rdev)
> > return true;
> > }
> >
> > +static bool rdev_is_spare(struct md_rdev *rdev)
> > +{
> > + return !test_bit(Candidate, &rdev->flags) && rdev->raid_disk >= 0 &&
> > + !test_bit(In_sync, &rdev->flags) &&
> > + !test_bit(Journal, &rdev->flags) &&
> > + !test_bit(Faulty, &rdev->flags);
> > +}
> > +
> > static int remove_and_add_spares(struct mddev *mddev,
> > struct md_rdev *this)
> > {
> > @@ -9217,13 +9225,10 @@ static int remove_and_add_spares(struct mddev *mddev,
> > rdev_for_each(rdev, mddev) {
> > if (this && this != rdev)
> > continue;
> > + if (rdev_is_spare(rdev))
> > + spares++;
> > if (test_bit(Candidate, &rdev->flags))
> > continue;
>
> Hi Kuai
>
> Why not put rdev_is_spare after testing Candidate?
>
> Best Regards
> Xiao
I know the answer now, Because the next patch wants to put codes into
the function rdev_addable
>
> > - if (rdev->raid_disk >= 0 &&
> > - !test_bit(In_sync, &rdev->flags) &&
> > - !test_bit(Journal, &rdev->flags) &&
> > - !test_bit(Faulty, &rdev->flags))
> > - spares++;
> > if (rdev->raid_disk >= 0)
> > continue;
> > if (test_bit(Faulty, &rdev->flags))
> > --
> > 2.39.2
> >
Reviewed-by: Xiao Ni <xni@xxxxxxxxxx>
