On 10/16, Chao Yu wrote:
> Hi Jaegeuk,
>
> On 2017/10/13 7:15, Jaegeuk Kim wrote:
> > This patch returns an error number to quota_write in order for quota to
> > handle
> > it correctly.
>
> We should return error number like __generic_file_write_iter, right? it
> needs to return written bytes if we have written one page or more, otherwise
> return error number feedbacked from write_begin.
>
> So how about reverting 4f31d26b0c17 ("f2fs: return wrong error number on
> f2fs_quota_write")?
I thought like that, but realized the code change is somewhat different between
them.
Thanks,
>
> Thanks,
>
> >
> > Signed-off-by: Jaegeuk Kim <jaeg...@kernel.org>
> > ---
> > fs/f2fs/super.c | 5 ++++-
> > 1 file changed, 4 insertions(+), 1 deletion(-)
> >
> > diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
> > index 2feecf5e7f4c..840a0876005b 100644
> > --- a/fs/f2fs/super.c
> > +++ b/fs/f2fs/super.c
> > @@ -1397,8 +1397,11 @@ static ssize_t f2fs_quota_write(struct super_block
> > *sb, int type,
> >
> > err = a_ops->write_begin(NULL, mapping, off, tocopy, 0,
> > &page, NULL);
> > - if (unlikely(err))
> > + if (unlikely(err)) {
> > + if (len == towrite)
> > + return err;
> > break;
> > + }
> >
> > kaddr = kmap_atomic(page);
> > memcpy(kaddr + offset, data, tocopy);
> >
