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Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , Kairui Song , Qi Zheng , Shakeel Butt , Barry Song , Axel Rasmussen , Yuanchu Xie , Wei Xu , Baoquan He , Baolin Wang , Brendan Jackman , Johannes Weiner , Zi Yan , Jan Kiszka , Kieran Bingham , Oscar Salvador , Greg Kroah-Hartman , "Rafael J. Wysocki" , Danilo Krummrich Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-cxl@vger.kernel.org, driver-core@lists.linux.dev, linux-fsdevel@vger.kernel.org X-Mailer: b4 0.16.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1209; i=david@kernel.org; h=from:subject:message-id; bh=kW71CGw1PYjxPgKG6zvCBhURTueD7ZfqBQYFE8KvMsc=; b=owGbwMvMwCF2/OVpCdfQ3ZWMp9WSGLI29rSJql0Rmifnxm7RJB25RG++8bZ1RycJLL/6xmvXc u8ejZNHOkpZGMQ4GGTFFFmCgu8bvHy5rrbajY8ZZg4rE8gQBi5OAZjI1UhGhnkph/08EjdN0PbP n3Poxc1Ndb6bredc2LR4i2hVj+mMJycZGfb5KoXvrJq+fdGnK+LJ6YcM9y/Q+PPTvDG5Zm+v9EX H1fwA X-Developer-Key: i=david@kernel.org; a=openpgp; fpr=1BD9CAAD735C4C3A460DFCCA4DDE10F700FF835A X-Rspamd-Server: rspam11 X-Rspamd-Queue-Id: 7BC16A0009 X-Stat-Signature: 16765w85setd79ij7471o34mdiib8auy X-Rspam-User: X-HE-Tag: 1790020874-693613 X-HE-Meta: U2FsdGVkX1/9IPMOUyx6SdZD5OTAVLhTXChcmJSTGUT6HJlo9yxXzNYxrERUlFge/vQOXbrKMNH5w80hVeoH9ByZYiF2ipOzw9ZWCo/UuvqTKrfFTcBhh2QLQgDgTcJGtJRu4uIamSw2hnug+IPrJ34Zp+PhsTVJ7ObQywyyB/PtMLC6yNslM7iXTKLeEpSwN3H4Oy+CwSDe8m64Ey/rWHELQvysVfgngIvaGURmP6cuIZDFSNkaEBdK0j2SJjDjTLj1uWN20mucJ055tJtFtRoutQ/Rgr2K1CnIgsBQk/uiNO4wutqb8Ppo25Uw+d5N94opt4GbzTY0QtqLSfUs6ONbvgq8gxH+5AapFXwQhMXa5MQqvMc6WnIxlSvAkWTYb16J1lUTgpjWIbP5YEys92MaMLF9BCrFFnyssGfTbwiyptDMtPTD+hzXh+j317i+N6TuVTJYqHPRRmrsmKH+TLj8qoh7bhA/o2dCsalebDsb8osUKOsnbNXbELz5bLeyRVewLpKNWCoydAZfte2tolyvP9FMpCNF4Wqh34DQfgumwHlO6nhDBC3nx855wQOaRziJUPxDOI/dHZrGN02pffSCibbRcqo31AHyG5IjlJTRNj8rVawQti0FTYLdfrLdhWc5ynOz4cwiex5XXcHSlwawG3VaJ7tIwPXfVZebhd2HDgLd2IozssF+QNcQnDv7NHPTaWOSjQN8cyEOpQlLUOmoezhtIdXx4mRy+J53s+DOeJu32AhjOE0UH0SPouKHoGj3gKm1K70JOmnuUgLdCfYRkaLzLzU3XuwGOiw+N26S46vgknmjhfEY2+7fI7dBy/fZA8D4su42bcsCJ830c48zaLVFObvK6tjkOW51Ln+uWaSF+FZ+QEDVBBRI0tUQOGt6zgtYUAW+EuS2Dn0xWxxC0jxOshBuv0LyErDTIfAX8HGXfsAt7AVKSsHrFhTS+HQXLYqcTQjYbemGW2d ng3AsEln ir51iMzqDOAfnEniwa8PR03c/+OIVkaSqFhfyOmoRF6kTM+ZzivNhcifGdvmPmoyHeIIYY9OSuteTG8SeGNsaJE8aTHhuIyWRglKeLW/8kXB7tm14V1hhJ1xbq1iXTneDaTYXQZDW0a8bCBa2s5b/QmU8FdmBPlD7z0d2gW2N3YV9fctoKHUhOmkloiQLftAT/wUBUiFMJYgJOasDQjoAupB5MEufrgzT/OpAjE8/NHPUxPOzG1oUgiNRhcOvEKVOz3V93GUUkdmcWC+8oBSov8pVDR9vusponiVB Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: pfn_to_online_page() will only succeed on some PFNs within the same section, not necessarily all. Let's make that clearer. While at it, rephrase it to "Allow inspection of". Acked-by: Oscar Salvador Acked-by: Lorenzo Stoakes (ARM) Reviewed-by: Mike Rapoport (Microsoft) Signed-off-by: David Hildenbrand (Arm) --- fs/proc/page.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/fs/proc/page.c b/fs/proc/page.c index f90e1030825e9..6aa99e42ec222 100644 --- a/fs/proc/page.c +++ b/fs/proc/page.c @@ -31,10 +31,9 @@ static inline unsigned long get_max_dump_pfn(void) { #ifdef CONFIG_SPARSEMEM /* - * The memmap of early sections is completely populated and marked - * online even if max_pfn does not fall on a section boundary - - * pfn_to_online_page() will succeed on all pages. Allow inspecting - * these memmaps. + * If max_pfn does not fall on a section boundary, pfn_to_online_page() + * can succeed on PFNs beyond max_pfn within the same section. Allow + * inspection of these memmaps. */ return round_up(max_pfn, PAGES_PER_SECTION); #else -- 2.43.0