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authorKaixu Xia <kaixuxia@tencent.com>2022-09-08 11:13:17 +0800
committerAndrew Morton <akpm@linux-foundation.org>2022-10-03 14:03:05 -0700
commit5934ec1362b235c4341807c28f79b6a596ce1b40 (patch)
tree1768e6ac559de400d0e2a2ee7cb906ab787abd2b /mm/damon/vaddr.c
parentf5a79d7c0c87c8d88bb5e3f3c898258fdf1b3b05 (diff)
downloadlwn-5934ec1362b235c4341807c28f79b6a596ce1b40.tar.gz
lwn-5934ec1362b235c4341807c28f79b6a596ce1b40.zip
mm/damon/vaddr: add a comment for 'default' case in damon_va_apply_scheme()
The switch case 'DAMOS_STAT' and switch case 'default' have same return value in damon_va_apply_scheme(), and the 'default' case is for DAMOS actions that not supported by 'vaddr'. It might make sense to add a comment here. [akpm@linux-foundation.org: fx comment grammar] Link: https://lkml.kernel.org/r/1662606797-23534-1-git-send-email-kaixuxia@tencent.com Signed-off-by: Kaixu Xia <kaixuxia@tencent.com> Reviewed-by: SeongJae Park <sj@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/damon/vaddr.c')
-rw-r--r--mm/damon/vaddr.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/mm/damon/vaddr.c b/mm/damon/vaddr.c
index 349b44d699e2..c2c08c1b316b 100644
--- a/mm/damon/vaddr.c
+++ b/mm/damon/vaddr.c
@@ -658,6 +658,9 @@ static unsigned long damon_va_apply_scheme(struct damon_ctx *ctx,
case DAMOS_STAT:
return 0;
default:
+ /*
+ * DAMOS actions that are not yet supported by 'vaddr'.
+ */
return 0;
}