Re: [PATCH v3 12/16] fuse: use iomap for buffered writes

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On Tue, Jun 24, 2025 at 3:07 AM Miklos Szeredi <miklos@xxxxxxxxxx> wrote:
>
> On Tue, 24 Jun 2025 at 04:23, Joanne Koong <joannelkoong@xxxxxxxxx> wrote:
>
> >  static ssize_t fuse_cache_write_iter(struct kiocb *iocb, struct iov_iter *from)
> >  {
> >         struct file *file = iocb->ki_filp;
> > @@ -1384,6 +1418,7 @@ static ssize_t fuse_cache_write_iter(struct kiocb *iocb, struct iov_iter *from)
> >         struct inode *inode = mapping->host;
> >         ssize_t err, count;
> >         struct fuse_conn *fc = get_fuse_conn(inode);
> > +       bool writeback = false;
> >
> >         if (fc->writeback_cache) {
> >                 /* Update size (EOF optimization) and mode (SUID clearing) */
> > @@ -1397,8 +1432,7 @@ static ssize_t fuse_cache_write_iter(struct kiocb *iocb, struct iov_iter *from)
> >                                                 file_inode(file))) {
> >                         goto writethrough;
> >                 }
> > -
> > -               return generic_file_write_iter(iocb, from);
> > +               writeback = true;
>
> Doing this in the else branch makes the writethrough label (which is
> wrong now) unnecessary.

Hi Miklos,

That's a great point, I'll get rid of the writethrough label in v4.


Thanks,
Joanne

>
> Thanks,
> Miklos





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