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bh=RmZP8LXAzXmudAg+WjCvMFE/Rw2yf7ik6Dcir0mGUhM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=s1qOOoejtZrXM/pP10mBRqvPAG1L4fZ0yzMF0eEpRzrsxlY7q5mH6PtWJfnS3+G/h Z+P5+9uuX1bdPD2EziZDwA5lavk/1+NcoXtLG8uTB2v/5ETkoUDOd0wjznXEsDfPxQ o5la/zXRqePYzas3GMlRCESF02FqLzM6ep6oZvumR561NMLJ8SQC7mrYLjbHsymXqX pLBNhqMQIG3py5JHkqFub5+4UOdaCfEpZfM2VM3p+fHtSaS4Wbc0xp9OBT/qQd6/Fp f2hue51lpamV0wFsycRxltVtyhUypmNv1oh2+KP1HGZT9QJEMzbMRokgtseDw+K2Bs j3l/out0PY3yA== From: SeongJae Park To: Andrew Morton Cc: SeongJae Park , David Hildenbrand , Oscar Salvador , linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 2/2] mm/memory_hotplug: cleanup 'ret' variable usage in do_migrate_range() Date: Wed, 15 Feb 2023 23:03:00 +0000 Message-Id: <20230215230300.61125-3-sj@kernel.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230215230300.61125-1-sj@kernel.org> References: <20230215230300.61125-1-sj@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspam-User: X-Rspamd-Server: rspam03 X-Stat-Signature: iejj5tkczxrjfopkrxczi1b8jy768k44 X-Rspamd-Queue-Id: 7F17C1C001B X-HE-Tag: 1676502191-135420 X-HE-Meta: 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 jqWU1t9A LILlZ7j6C5NCdY5YUhKDWQBPCfKWdcX0E52VI3F1QLEKnZTysOjxsVZnio5DS+Nhd75zLNBIV1jC+f2dtMXd+98N19mKB51PBwH1k8exCPyVWrCkQEIRkx2/pNo8MxNqIuDvH62Axt3N0raR8uFenYabc+8bmAsGfWNLmOapfVPN/Ef8qLhfWC6e4n4NBvrkiZiScfaEirk6gY74GWWS3sdVUmfsqng3Wrdc8YbE2vYzFNcW3FdqnlbQ4o2HUExpu0LSqgERzXyLxqKLJbcoMUfTFP71KWLBBwAx5a6VOsHIaqJtli22RS6vE3VjW3epeAoxQltGXENt8/8uReAZ5gBYvUqRxRkDOcw7w0YhhcObe7zZCYG68AOsLAkNB9WtUv+LHUr057q6c0/l073ScERhxlA== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Because do_migrate_range() is returning nothing, some 'ret' variable usages are unnecessary. Remove unnecessary usage and reduce its scope. Signed-off-by: SeongJae Park --- mm/memory_hotplug.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index 6c615ba1a5c7..6df3072d11df 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -1624,7 +1624,6 @@ static void do_migrate_range(unsigned long start_pfn, unsigned long end_pfn) { unsigned long pfn; struct page *page, *head; - int ret = 0; LIST_HEAD(source); static DEFINE_RATELIMIT_STATE(migrate_rs, DEFAULT_RATELIMIT_INTERVAL, DEFAULT_RATELIMIT_BURST); @@ -1678,7 +1677,6 @@ static void do_migrate_range(unsigned long start_pfn, unsigned long end_pfn) page_is_file_lru(page)); } else { - ret = -EBUSY; if (__ratelimit(&migrate_rs)) { pr_warn("failed to isolate pfn %lx\n", pfn); dump_page(page, "isolation failed"); @@ -1692,6 +1690,7 @@ static void do_migrate_range(unsigned long start_pfn, unsigned long end_pfn) .nmask = &nmask, .gfp_mask = GFP_USER | __GFP_MOVABLE | __GFP_RETRY_MAYFAIL, }; + int ret; /* * We have checked that migration range is on a single zone so -- 2.25.1