From: Changbin Du Date: Fri, 5 Nov 2021 20:46:12 +0000 (-0700) Subject: mm/damon: needn't hold kdamond_lock to print pid of kdamond X-Git-Tag: v6.1-rc5~2715^2~41 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=42e4cef5fe48333e0db6e98b019edf5f2c2f11fd;p=platform%2Fkernel%2Flinux-starfive.git 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 Reviewed-by: SeongJae Park Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- diff --git a/mm/damon/core.c b/mm/damon/core.c index 61a9e3b..8171e7d 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);