RE: [PATCH v2 02/13] exfat: add super block operations

From: Namjae Jeon
Date: Tue Nov 19 2019 - 23:33:26 EST


> On Tue, Nov 19, 2019 at 06:22:28PM +0900, Namjae Jeon wrote:
> > > No idea what the code does. But I was just skimming over and find the
> > > above pattern somehow strange. Shouldn't this be something like
> > Right.
> >
> > >
> > > if (!READ_ONCE(sbi->s_dirt)) {
> > > WRITE_ONCE(sbi->s_dirt, true);
> >
> > It should be :
> > if (READ_ONCE(sbi->s_dirt)) {
> > WRITE_ONCE(sbi->s_dirt, false);
> > I will fix it on v3.
>
> The other option would be to an unsigned long flags field and define
> bits flags on it, then use test_and_set_bit, test_and_clear_bit etc.
> Which might be closer to the pattern we use elsewhere in the kernel.
I will replace it with test_and_set/clear_bit().

Thanks!