Messages in this thread | | | Date | Thu, 21 Jul 2022 15:20:06 +0100 | From | Matthew Wilcox <> | Subject | Re: [RFC PATCH] mm: set cache_trim_mode when inactive ratio is undesired |
| |
On Thu, Jul 21, 2022 at 03:06:48PM +0800, zhaoyang.huang wrote: > @@ -3198,7 +3215,8 @@ static void shrink_node(pg_data_t *pgdat, struct scan_control *sc) > * anonymous pages. > */ > file = lruvec_page_state(target_lruvec, NR_INACTIVE_FILE); > - if (file >> sc->priority && !(sc->may_deactivate & DEACTIVATE_FILE)) > + if (file >> sc->priority && (!(sc->may_deactivate & DEACTIVATE_FILE) > + || inactive_is_high(target_lruvec, LRU_INACTIVE_FILE)))
Indentation is weird here. When splitting a line, put the operator at the end, and then indent the rest by something *other* than a single tab, so it doesn't look like it's part of the following statement. ie either:
if (file >> sc->priority && (!(sc->may_deactivate & DEACTIVATE_FILE) || inactive_is_high(target_lruvec, LRU_INACTIVE_FILE)))
or:
if (file >> sc->priority && (!(sc->may_deactivate & DEACTIVATE_FILE) || inactive_is_high(target_lruvec, LRU_INACTIVE_FILE)))
Some people like to use the indentation to illustrate the precendence. That would look like this:
if (file >> sc->priority && (!(sc->may_deactivate & DEACTIVATE_FILE) || inactive_is_high(target_lruvec, LRU_INACTIVE_FILE)))
(I have a mild preference for the third option in this instance)
> sc->cache_trim_mode = 1; > else > sc->cache_trim_mode = 0; > -- > 1.9.1 > >
| |