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[82.11.253.99]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4587054e37dsm20889375e9.14.2025.07.24.06.56.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 24 Jul 2025 06:56:41 -0700 (PDT) From: Eugen Hristev To: linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-arch@vger.kernel.org, linux-mm@kvack.org, tglx@linutronix.de, andersson@kernel.org, pmladek@suse.com Cc: linux-arm-kernel@lists.infradead.org, linux-hardening@vger.kernel.org, eugen.hristev@linaro.org, corbet@lwn.net, mojha@qti.qualcomm.com, rostedt@goodmis.org, jonechou@google.com, tudor.ambarus@linaro.org Subject: [RFC][PATCH v2 22/29] mm/numa: Register information into Kmemdump Date: Thu, 24 Jul 2025 16:55:05 +0300 Message-ID: <20250724135512.518487-23-eugen.hristev@linaro.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250724135512.518487-1-eugen.hristev@linaro.org> References: <20250724135512.518487-1-eugen.hristev@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Server: rspam12 X-Rspamd-Queue-Id: 6EE3B80004 X-Stat-Signature: 3o719zpsm8tw8e73d91zbwasdnhh4kpx X-Rspam-User: X-HE-Tag: 1753365403-200132 X-HE-Meta: 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 GpaRArtM jeS2xDsdEjX4rRVT4h+3qvUkem8MtIml1J/AECu4YvsQHLiLEyP0GfJ1z4lGF5P1YAW69pnIN+qBA9Gl/8G2OD02OY6DkeOOySrTdY3tD5OvGdZzwf12Y1NQFyv9x/jwWPKiFU9s40zMM+8zynZ7YHbsXHAQL5D6gI0kCM2IHUvZRwnjisriAgE9Ecfm98qq7fUhePE5PETtuEWHtKzH34iUHRkcBI4az2OGMgzwTPd/FwsICmwraEqyXofQTHD00slEz3Ir2aLAMDD9qfZsh+Qa1tpP8j4ct48/nsAwjIMXwetRib0B27fR669D56g2IrOMDDcmf4+TwdGNq+t8P+D05Rew3QYM3AgQkbfwb5FU7fAw0wOfNgAsEHVdwOeKP1RDS7feEGMPVo5EQtuO8xuv7bA== 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: List-Subscribe: List-Unsubscribe: Annotate vital static information into kmemdump: - node_data Information on these variables is stored into dedicated kmemdump section. Register dynamic information into kmemdump: - dynamic node data for each node This information is being allocated for each node, as physical address, so call kmemdump_phys_alloc_size that will allocate an unique kmemdump uid, and register the virtual address. Signed-off-by: Eugen Hristev --- mm/numa.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/mm/numa.c b/mm/numa.c index 7d5e06fe5bd4..88cada571171 100644 --- a/mm/numa.c +++ b/mm/numa.c @@ -4,9 +4,11 @@ #include #include #include +#include struct pglist_data *node_data[MAX_NUMNODES]; EXPORT_SYMBOL(node_data); +KMEMDUMP_VAR_CORE(node_data, MAX_NUMNODES * sizeof(struct pglist_data)); /* Allocate NODE_DATA for a node on the local memory */ void __init alloc_node_data(int nid) @@ -16,7 +18,8 @@ void __init alloc_node_data(int nid) int tnid; /* Allocate node data. Try node-local memory and then any node. */ - nd_pa = memblock_phys_alloc_try_nid(nd_size, SMP_CACHE_BYTES, nid); + nd_pa = kmemdump_phys_alloc_size(nd_size, memblock_phys_alloc_try_nid, + nd_size, SMP_CACHE_BYTES, nid); if (!nd_pa) panic("Cannot allocate %zu bytes for node %d data\n", nd_size, nid); -- 2.43.0