Commit f82e70e2 authored by SeongJae Park's avatar SeongJae Park Committed by Andrew Morton
Browse files

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: default avatarSeongJae Park <sj@kernel.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
parent 3791bc7b

mm/damon/paddr.c

+3 −0
Original line number Diff line number Diff line
@@ -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;