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b=LX6iWUywtDOVwU3j9KaL9yXGKfNvvYoCb2qlBXzbFyPsnG2vGbJfpde+T2rxhLMi6 2QkUnuWKjSpsWFFAsUzRcNl579W7HN0vsLwnx0uIdqDYc9pemeno7sciMWkg6kcTI/ 4/xSfoSw/2dLsoppKWxsEq5G+zDhlITLjIbe3xtQyDd3VX8EaYH8uBU7LN15p9UqQL FVs9iNnIt/1eTm9Frc5o3vv9Yv1CER2nZ+JljzygBIBdOv7xURTNYUtEzZKhlQ+g8z HHaOgTGPYzoj7al1VV0VjV+KDjSPLts8cDtlXEe/iJFkjLIODRbrq6dVEwqGplAjPU 8vCr0gtMZU5XA== Date: Mon, 29 Dec 2025 08:59:05 +0200 From: Mike Rapoport To: Eugen Hristev Cc: linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, tglx@linutronix.de, andersson@kernel.org, pmladek@suse.com, rdunlap@infradead.org, corbet@lwn.net, david@redhat.com, mhocko@suse.com, tudor.ambarus@linaro.org, mukesh.ojha@oss.qualcomm.com, linux-arm-kernel@lists.infradead.org, linux-hardening@vger.kernel.org, jonechou@google.com, rostedt@goodmis.org, linux-doc@vger.kernel.org, devicetree@vger.kernel.org, linux-remoteproc@vger.kernel.org, linux-arch@vger.kernel.org, tony.luck@intel.com, kees@kernel.org Subject: Re: [PATCH 20/26] mm/sparse: Register information into meminspect Message-ID: References: <20251119154427.1033475-1-eugen.hristev@linaro.org> <20251119154427.1033475-21-eugen.hristev@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20251119154427.1033475-21-eugen.hristev@linaro.org> X-Rspam-User: X-Rspamd-Server: rspam11 X-Rspamd-Queue-Id: 265FB140009 X-Stat-Signature: 1ijtrhn3kzcyt1o3654yu7jb4bqpzcnm X-HE-Tag: 1766991556-562120 X-HE-Meta: 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 BCKHUwRg 6WJuYR4X9xYac8/U9Hu9PbZDcFGrJIvJ6hiHVZJvEbVjGGv7Kjcmz85sPb/Z5r5VLIXW/pxkF7sRbU2qdQaASEjRxiEdVLupazFj3x++wCx7XJtLmqA3qLzqPSk2oPFDf3PYlw0oxWTPYE4uYZ0ktTU4htkbz+7+LBVGPt/Hy0XBtuU5T8fBQBvbPoj6d5xi83cSdqekqbQv7HfP/mmOoH0nqY9yno/mhu5B9rbc6TaU42mT1ft+adT6hgu02WR9K8SpN7NHyAk5cgJSmrGmWYNEMJAsziXaGY0IMTr0zo9HbB3JK+0cqezf6yQ== 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: Hi Eugen, On Wed, Nov 19, 2025 at 05:44:21PM +0200, Eugen Hristev wrote: > Annotate vital static information into meminspect: > - mem_section > > Information on these variables is stored into inspection table. > > Register dynamic information into meminspect: > - section > - mem_section_usage > > This information is being allocated for each node, so call > memblock_mark_inspect to mark the block accordingly. > > Signed-off-by: Eugen Hristev > --- > mm/sparse.c | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/mm/sparse.c b/mm/sparse.c > index 17c50a6415c2..80530e39c8b2 100644 > --- a/mm/sparse.c > +++ b/mm/sparse.c > @@ -15,6 +15,7 @@ > #include > #include > #include > +#include > #include "internal.h" > #include > > @@ -30,6 +31,7 @@ struct mem_section mem_section[NR_SECTION_ROOTS][SECTIONS_PER_ROOT] > ____cacheline_internodealigned_in_smp; > #endif > EXPORT_SYMBOL(mem_section); > +MEMINSPECT_SIMPLE_ENTRY(mem_section); > > #ifdef NODE_NOT_IN_PAGE_FLAGS > /* > @@ -253,6 +255,7 @@ static void __init memblocks_present(void) > size = sizeof(struct mem_section *) * NR_SECTION_ROOTS; > align = 1 << (INTERNODE_CACHE_SHIFT); > mem_section = memblock_alloc_or_panic(size, align); > + memblock_mark_inspect(virt_to_phys(mem_section), size); Why not meminspect_register_va()? > } > #endif > > @@ -343,6 +346,7 @@ sparse_early_usemaps_alloc_pgdat_section(struct pglist_data *pgdat, > limit = MEMBLOCK_ALLOC_ACCESSIBLE; > goto again; > } > + memblock_mark_inspect(virt_to_phys(usage), size); > return usage; > } > > -- > 2.43.0 > -- Sincerely yours, Mike.