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b=W21hnb7eXdHFi5C1WDTJxhG7jrXJ3GRTxTkW9kXHLAflDXVKTfvdNeQzKfzYZJDIM OkyuKIY20zYacrL6Y26G9sSwNzVPZ4nvRHrnky32h5IIPr/oVwCa2C/PZzglsSq35q i2VcWvgmSs40pPuPwUtSTJMM1UPrOr00aRXUPck0Uz10xwYvokDhPHA22vBhQuwKYl Seudwxv3FLimUuSQindVD9+RBkBQpqcL2X/K11Y8AgJo9aX4/KSeFiVA/HMxNUFXnE 2dXpn67RadvEj2yUpBivnV2xL+IaInOeiH0beKyN1yX8XsbBl8W2eOWka1L608IIm/ 64zleUSZnJ+6g== From: SJ Park To: Andrew Morton Cc: SJ Park , damon@lists.linux.dev, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: [PATCH 3/4] mm/damon/reclaim: remove unnecessary damon_call() param validation Date: Wed, 2 Sep 2026 18:03:32 -0700 Message-ID: <20260903010334.93622-4-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260903010334.93622-1-sj@kernel.org> References: <20260903010334.93622-1-sj@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Stat-Signature: ejt7gz93jcdbhedqpyj8nerm8w51zbna X-Rspamd-Server: rspam12 X-Rspamd-Queue-Id: 37816C000B X-Rspam-User: X-HE-Tag: 1788397424-113057 X-HE-Meta: U2FsdGVkX1/jzR2XuB8PiEvbnU2KhL7dQb9rY8ok1BNtUwvxeiFfNCrJess6nNs9i1m2+V/EXJYmmTCKTfKN6q7G9e/nzwaj9nooWLsd8JRdhwFEHqMhzKse74tHLHuakj9Fg6d6nUKab8wFo1H3Sifo+J4PPf2I4rSdkf5GW+QzwTYBQGN18FMygH62E2RMqbMKGZXt1E8aN3ZF98Gg5mtjuKEBwKMRklXW+Ld1tNxRhS9OlBw0h3e7CcFXukP73nQ+CEI0RLbrmxhRhsDeEwpHtJo/F5DJkbkTHxr2zU5o0xY0rDXm2GA8Xg2PQZXNHzHw2tdFKZA6Otw3hDKLXZTV9HHiCeniowXhiIGtwy2m+c3lpBW4holJQ2FT6Fx6slBfLwkXkaXl8q4p9rY+YOLYDG6Y902k/Rrfj2X/ygu/LZj5+HRymdY0LrIpVMT7SwQNsPpBUD7ziGIDy7Y4zdg62mv2YpjJOgeVE913U+e4kpeQk/DLYBQ3t1ysIlWpnUeh89C78279rlVvwF4JAwABaJT9MVHEmT3eTf4QumKPO4wPhb6AcA4EZAGlky4P3COe7sVW7nLdywQcuOkFQUbSejHdj55wbb7K4SMFw2vwfYxqi17Igyu8ZaXhN0o8jpeMPBPUxyTNLGT9TTfuoZt3dAQUSvCGfVDPi8tPX3y9gDb/aFUa7inxNowqsYAkPsVzaunCWo8ql+71es58qMxnV01cO3+iHO0uit0SWVz3eNs1PQsD7VE7GGrShb8xJnJhrIlHPA4l3IXrv9hY63F1Iy7pKe+TEj6/gvS7NkxxV+tykgJdObyXJ0C5TtQPBzv2ULLDTaDtZGUIWi/Y2X5NiJzdvGbNXWFdpxKIIbCYzR3xjvergAqFOgsmQmjm6ecPSZWN/liJIC+R/nzn0t2U8xryLyC2Sd//dbz/hpRCWYYMtpejbg9Z5OKebCe8RPJhiIGc6wRapbLSCqb dbUfVmPh AZqjgeYV2YAKeL/NmUIdiZJ7E3g/DyxQi10xP6VAAF+bSi1VIcfGMnhhHo+oQq9wbKktHtJn8afdtLslg/rqh5VG3sI06tOyoBEzNwOijKljTprkB0GPNedWWJqGlXuDwrUEYu3Rd80MKzoBlJvQPZUd/OXBclQb4C5kas4kHEdkEYtfFrBX1+eCd9XbVqoH9Zs+c4mUPe+erreKvs65Dy40wNXfs8ffQqGmjDeoZvRC2LrnXrBskZx5PZCzR96E4sRtfU1igLhTCARE2q4sjujg99g== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: DAMON_RECLAIM avoids passing NULL or unstarted damon_ctx to damon_call() with its own validation. The validation is no longer needed, because the DAMON core layer now handles the corner cases itself. Remove the unnecessary check. Signed-off-by: SJ Park --- mm/damon/reclaim.c | 8 -------- 1 file changed, 8 deletions(-) diff --git a/mm/damon/reclaim.c b/mm/damon/reclaim.c index 45d5557cc575a..42a2c9cb13431 100644 --- a/mm/damon/reclaim.c +++ b/mm/damon/reclaim.c @@ -271,8 +271,6 @@ static int damon_reclaim_commit_inputs_fn(void *arg) return damon_reclaim_apply_parameters(); } -static bool damon_reclaim_damon_has_started; - static int damon_reclaim_commit_inputs_store(const char *val, const struct kernel_param *kp) { @@ -293,10 +291,6 @@ static int damon_reclaim_commit_inputs_store(const char *val, if (!commit_inputs_request) return 0; - /* Skip damon_call() if ctx has not successfully started. */ - if (!damon_reclaim_damon_has_started) - return -EINVAL; - err = damon_call(ctx, &control); return err ? err : control.return_code; @@ -343,8 +337,6 @@ static int damon_reclaim_turn(bool on) err = damon_start(&ctx, 1, true); if (err) return err; - if (!damon_reclaim_damon_has_started) - damon_reclaim_damon_has_started = true; return damon_call(ctx, &call_control); } -- 2.47.3