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authorChangbin Du2021-11-05 13:46:12 -0700
committerLinus Torvalds2021-11-06 13:30:44 -0700
commit42e4cef5fe48333e0db6e98b019edf5f2c2f11fd (patch)
tree2a3b6429dbec12f07c412409cb4fbe1e68618bcf /mm/damon
parent5f7fe2b9b827662cf349ab45406d6cbf0cc6251f (diff)
mm/damon: needn't hold kdamond_lock to print pid of kdamond
Just get the pid by 'current->pid'. Meanwhile, to be symmetrical make the 'starts' and 'finishes' logs both use debug level. Link: https://lkml.kernel.org/r/20210927232432.17750-1-changbin.du@gmail.com Signed-off-by: Changbin Du <changbin.du@gmail.com> Reviewed-by: SeongJae Park <sj@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/core.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/mm/damon/core.c b/mm/damon/core.c
index 61a9e3b37bc9..8171e7dddc30 100644
--- a/mm/damon/core.c
+++ b/mm/damon/core.c
@@ -652,9 +652,7 @@ static int kdamond_fn(void *data)
unsigned int max_nr_accesses = 0;
unsigned long sz_limit = 0;
- mutex_lock(&ctx->kdamond_lock);
- pr_debug("kdamond (%d) starts\n", ctx->kdamond->pid);
- mutex_unlock(&ctx->kdamond_lock);
+ pr_debug("kdamond (%d) starts\n", current->pid);
if (ctx->primitive.init)
ctx->primitive.init(ctx);
@@ -705,7 +703,7 @@ static int kdamond_fn(void *data)
if (ctx->primitive.cleanup)
ctx->primitive.cleanup(ctx);
- pr_debug("kdamond (%d) finishes\n", ctx->kdamond->pid);
+ pr_debug("kdamond (%d) finishes\n", current->pid);
mutex_lock(&ctx->kdamond_lock);
ctx->kdamond = NULL;
mutex_unlock(&ctx->kdamond_lock);