Re: + swap-migration-v5-lru-operations-tweaks.patch added to -mm tree

[Andrew Morton <akpm@osdl.org>]

Coywolf Qi Hunt <coywolf@gmail.com> wrote:
>
> 2005/11/1, akpm@osdl.org <akpm@osdl.org>:
> >
> > The patch titled
> >
> >      swap-migration-v5-lru-operations-tweaks
> >
> > has been added to the -mm tree.  Its filename is
> >
> >      swap-migration-v5-lru-operations-tweaks.patch
> >
> >
> > From: Andrew Morton <akpm@osdl.org>
> >
> > Cc: Christoph Lameter <clameter@sgi.com>
> > Signed-off-by: Andrew Morton <akpm@osdl.org>
> > ---
> >
> >  include/linux/mm_inline.h |    4 +---
> >  mm/vmscan.c               |    6 +++---
> >  2 files changed, 4 insertions(+), 6 deletions(-)
> >
> > diff -puN include/linux/mm_inline.h~swap-migration-v5-lru-operations-tweaks include/linux/mm_inline.h
> > --- devel/include/linux/mm_inline.h~swap-migration-v5-lru-operations-tweaks     2005-10-31 21:21:48.000000000 -0800
> > +++ devel-akpm/include/linux/mm_inline.h        2005-10-31 21:21:48.000000000 -0800
> > @@ -44,8 +44,7 @@ del_page_from_lru(struct zone *zone, str
> >   *
> >   * - zone->lru_lock must be held
> >   */
> > -static inline int
> > -__isolate_lru_page(struct zone *zone, struct page *page)
> > +static inline int __isolate_lru_page(struct zone *zone, struct page *page)
> >  {
> >         if (TestClearPageLRU(page)) {
> >                 if (get_page_testone(page)) {
> 
> My curiosity, why we do this when the former is friendly to grep?

It's easier to read.

> Any coding style document about this?

Dunno.  I have a rude email from Linus here somewhere from when I used to
do it that way ;)