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mm/damon/reclaim: use damon_kdamond_pid()

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DAMON_RECLAIM directly uses damon_ctx->kdamond field with manual
synchronization using damon_ctx->kdamond_lock, to get the pid of the
kdamond.  Use a new dedicated function for the purpose, namely
damon_kdamond_pid(), since that doesn't require manual and error-prone
synchronization.

Link: https://lkml.kernel.org/r/20260115152047.68415-5-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
SeongJae Park 2026-01-15 07:20:44 -08:00 committed by Andrew Morton
parent 306550f0a5
commit 33402229d2
1 changed files with 3 additions and 1 deletions
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4
mm/damon/reclaim.c
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@ -307,7 +307,9 @@ static int damon_reclaim_turn(bool on)
err = damon_start(&ctx, 1, true);
if (err)
return err;
kdamond_pid = ctx->kdamond->pid;
kdamond_pid = damon_kdamond_pid(ctx);
if (kdamond_pid < 0)
return kdamond_pid;
return damon_call(ctx, &call_control);
}