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authorSeongJae Park <sj@kernel.org>2021-12-10 14:46:31 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2021-12-10 17:10:55 -0800
commit0bceffa236af401f5206feaf3538526cbc427209 (patch)
treed6e51e0bd11fa78cf463bf709895c2eee24328de /mm/damon
parent4de46a30b9929d3d1b29e481d48e9c25f8ac7919 (diff)
downloadlinux-0bceffa236af401f5206feaf3538526cbc427209.tar.bz2
mm/damon/dbgfs: remove an unnecessary error message
When wrong scheme action is requested via the debugfs interface, DAMON prints an error message. Because the function returns error code, this is not really needed. Because the code path is triggered by the user specified input, this can result in kernel log mistakenly being messy. To avoid the case, this commit removes the message. Link: https://lkml.kernel.org/r/20211201150440.1088-3-sj@kernel.org Fixes: af122dd8f3c0 ("mm/damon/dbgfs: support DAMON-based Operation Schemes") Signed-off-by: SeongJae Park <sj@kernel.org> Cc: Brendan Higgins <brendanhiggins@google.com> Cc: Shuah Khan <shuah@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/damon')
-rw-r--r--mm/damon/dbgfs.c4
1 files changed, 1 insertions, 3 deletions
diff --git a/mm/damon/dbgfs.c b/mm/damon/dbgfs.c
index 9b520bb4a3e7..1efac0022e9a 100644
--- a/mm/damon/dbgfs.c
+++ b/mm/damon/dbgfs.c
@@ -210,10 +210,8 @@ static struct damos **str_to_schemes(const char *str, ssize_t len,
&wmarks.low, &parsed);
if (ret != 18)
break;
- if (!damos_action_valid(action)) {
- pr_err("wrong action %d\n", action);
+ if (!damos_action_valid(action))
goto fail;
- }
pos += parsed;
scheme = damon_new_scheme(min_sz, max_sz, min_nr_a, max_nr_a,