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Received: from willy by casper.infradead.org with local (Exim 4.98.2 #2 (Red Hat Linux)) id 1uPNrC-0000000Aoxq-3ZJE; Wed, 11 Jun 2025 15:59:19 +0000 From: "Matthew Wilcox (Oracle)" To: Vlastimil Babka Cc: "Matthew Wilcox (Oracle)" , Christoph Lameter , David Rientjes , Roman Gushchin , Harry Yoo , linux-mm@kvack.org Subject: [PATCH v2 08/11] proc: Remove mention of PG_slab Date: Wed, 11 Jun 2025 16:59:11 +0100 Message-ID: <20250611155916.2579160-9-willy@infradead.org> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250611155916.2579160-1-willy@infradead.org> References: <20250611155916.2579160-1-willy@infradead.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: 0A65F2000F X-Stat-Signature: 4j1ao15p3fnu411o3dngqxsuqzmu8cfa X-Rspam-User: X-HE-Tag: 1749657570-537337 X-HE-Meta: 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 fA3UB9xQ Z+QyvmkldYALDmbm7j1x4RM5Lp0rMXTekDut+J8wEemAcO/vlPh27mGbCFUxYehsJonUwIFFubHJV9uXa9SLl3wHV/byZ/4x0ipzgwcCO3NNaeHe7/2VxtkXyStFooDd3HbDf+vo1bm0mZL2pHUxPfV+df/6bKobPYmY9IhSwuyQTnFW0QeT0S9CLXsuEITvlOMRHm2GxdcXiPX9vs53DWBUFdYTP2Wvb/bXvcLeWHKxW70QFEHOJEdlNwgvIqRjAJAp0UILNXsx4tNTtoSQPJlCaFbwfWQ9h7vjG 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: Improve the documentation of buddy pages while I'm editing this comment. Signed-off-by: Matthew Wilcox (Oracle) --- fs/proc/page.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/fs/proc/page.c b/fs/proc/page.c index 999af26c7298..d7d0f0ca1e9b 100644 --- a/fs/proc/page.c +++ b/fs/proc/page.c @@ -183,10 +183,7 @@ u64 stable_page_flags(const struct page *page) u |= 1 << KPF_ZERO_PAGE; } - /* - * Caveats on high order pages: PG_buddy and PG_slab will only be set - * on the head page. - */ + /* KPF_BUDDY is only set on the first buddy page */ if (PageBuddy(page)) u |= 1 << KPF_BUDDY; else if (page_count(page) == 0 && is_free_buddy_page(page)) -- 2.47.2