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From: Yajun Deng To: akpm@linux-foundation.org Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, Yajun Deng Subject: [PATCH] mm/cma: get nid from physical address Date: Thu, 16 May 2024 17:17:01 +0800 Message-Id: <20240516091701.1527002-1-yajun.deng@linux.dev> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Migadu-Flow: FLOW_OUT X-Rspam-User: X-Rspamd-Server: rspam09 X-Rspamd-Queue-Id: 13F3A2001A X-Stat-Signature: 6kwnb5irpqkxg1q13arursiaiu1p8nus X-HE-Tag: 1715851049-516973 X-HE-Meta: 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 BuwahH6/ +6Eu1xL0TbtHWZapOhiO8Cz6fyD/EmuEWaMfvcGDGict5DG6SULB9cguWzXymwJOep6ghFChWYlYeb6A= X-Bogosity: Ham, tests=bogofilter, spamicity=0.002136, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: The nid passed to cma_declare_contiguous_nid() may be NUMA_NO_NODE, which is not the actual nid. To get the correct nid, we can get the nid from physical address. Signed-off-by: Yajun Deng --- mm/cma.c | 1 + 1 file changed, 1 insertion(+) diff --git a/mm/cma.c b/mm/cma.c index 3e9724716bad..be6cdde32944 100644 --- a/mm/cma.c +++ b/mm/cma.c @@ -361,6 +361,7 @@ int __init cma_declare_contiguous_nid(phys_addr_t base, kmemleak_ignore_phys(addr); base = addr; } + nid = early_pfn_to_nid(PHYS_PFN(base)); ret = cma_init_reserved_mem(base, size, order_per_bit, name, res_cma); if (ret) -- 2.25.1