mm/damon/paddr: make supported DAMOS actions of paddr clear

Patch series "mm/damon: cleanup code".

DAMON code was not so clean from the beginning, but it has been too much
nowadays, especially due to the duplicates in DAMON_RECLAIM and
DAMON_LRU_SORT.  This patchset cleans some of the mess.


This patch (of 22):

The 'switch-case' statement in 'damon_va_apply_scheme()' function provides
a 'case' for every supported DAMOS action while all not-yet-supported
DAMOS actions fall through the 'default' case, and comment it so that
people can easily know which actions are supported.  Its counterpart in
'paddr', 'damon_pa_apply_scheme()', however, doesn't.  This commit makes
the 'paddr' side function follows the pattern of 'vaddr' for better
readability and consistency.

Link: https://lkml.kernel.org/r/20220913174449.50645-1-sj@kernel.org
Link: https://lkml.kernel.org/r/20220913174449.50645-2-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
SeongJae Park 2022-09-13 17:44:28 +00:00 committed by Andrew Morton
parent 3791bc7bf1
commit f82e70e26b

View File

@ -275,7 +275,10 @@ static unsigned long damon_pa_apply_scheme(struct damon_ctx *ctx,
return damon_pa_mark_accessed(r);
case DAMOS_LRU_DEPRIO:
return damon_pa_deactivate_pages(r);
case DAMOS_STAT:
break;
default:
/* DAMOS actions that not yet supported by 'paddr'. */
break;
}
return 0;