Re: [PATCH] fs/fuse/dev.c: use zero_user_page instead

[rae l]

On 7/20/07, Dave Young <hidave.darkstar@xxxxxxxxx> wrote:
> > -       if (page && zeroing && count < PAGE_SIZE) {
> > -               void *mapaddr = kmap_atomic(page, KM_USER1);
> > -               memset(mapaddr, 0, PAGE_SIZE);
> > -               kunmap_atomic(mapaddr, KM_USER1);
> > -       }
> > +       if (page && zeroing && count < PAGE_SIZE)
> > +               zero_user_page(page, 0, PAGE_SIZE, KM_USER1);
> Why clear all page? IMHO,only count bytes need to be cleared.
The original one is memset(mapaddr, 0, PAGE_SIZE), namely clear the whole page.

--
Denis Cheng
Linux Application Developer

"One of my most productive days was throwing away 1000 lines of code."
- Ken Thompson.
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