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bh=g6oDn/FicAOF3nx/DCoyJSGrzf9Eb19AWdRAUdapAas=; b=jSOPsPeQZPlDYbbhej5saC8koT XKnhEFU/wcuFOb0RhPscHQGgkUtqY1yXa6xX6hWZPPR/cHKVe9s4lk252edrAA9szGeyvQHcOcg56 +oL3lVzmX+heZPu9YtnAVW0EE7c4I3qbKspxNGED2Kd1/oeRkv1P1U9PUnTVvBoSPdXoADULIHM8d 6g5C3xXHL4+XFoTATR3Bq15cXFGzFniYGytKVrBjRhJ36uADOgUXqpytP03qouCIFuYvZfRONNgPi 4MA50kjZVeL+Qiy0md3ZdiIari8xddmMmgHxT2p64TbEoEtIAo8gbK09wWjE2PP72MYildy42NNOZ OCAFfyew==; Received: from willy by casper.infradead.org with local (Exim 4.98 #2 (Red Hat Linux)) id 1sxAxx-0000000DYZp-0bw3; Sat, 05 Oct 2024 20:01:25 +0000 From: "Matthew Wilcox (Oracle)" To: Andrew Morton Cc: "Matthew Wilcox (Oracle)" , linux-mm@kvack.org Subject: [PATCH v2 7/7] mm: Use page->private instead of page->index in percpu Date: Sat, 5 Oct 2024 21:01:18 +0100 Message-ID: <20241005200121.3231142-8-willy@infradead.org> X-Mailer: git-send-email 2.46.0 In-Reply-To: <20241005200121.3231142-1-willy@infradead.org> References: <20241005200121.3231142-1-willy@infradead.org> MIME-Version: 1.0 X-Rspamd-Server: rspam07 X-Rspamd-Queue-Id: 935A84000C X-Stat-Signature: i9soqa7shnxihb61c6y987n47hz83t1k X-Rspam-User: X-HE-Tag: 1728158501-707008 X-HE-Meta: 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 DjCs02Zv hKXx/Z9zEzEsCQXfPAMWzMRnbTyUv7buVRrVOKxPO7ufchB4p8TrWiQlUxBkFRFNirx5/fkTHa9kLX2BWgUcW0tY0abgGn3c2SgksM1BrdsP36+xq2s1eRtG1SoZJ68bRUfjvrdxCkEXbQfnR2JqVf/K4XjaIcw3YzglUpN1y8xSG8oCyjdhkyVSRqzPn4luAqAtKk2tTz5ANtHb2PDV3hzu/xOEjbnKvC1vO8DCET1cke8g= 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: The percpu allocator only uses one field in struct page, just change it from page->index to page->private. Signed-off-by: Matthew Wilcox (Oracle) --- mm/percpu.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/mm/percpu.c b/mm/percpu.c index da21680ff294..0d3e6b76e873 100644 --- a/mm/percpu.c +++ b/mm/percpu.c @@ -253,13 +253,13 @@ static int pcpu_chunk_slot(const struct pcpu_chunk *chunk) /* set the pointer to a chunk in a page struct */ static void pcpu_set_page_chunk(struct page *page, struct pcpu_chunk *pcpu) { - page->index = (unsigned long)pcpu; + page->private = (unsigned long)pcpu; } /* obtain pointer to a chunk from a page struct */ static struct pcpu_chunk *pcpu_get_page_chunk(struct page *page) { - return (struct pcpu_chunk *)page->index; + return (struct pcpu_chunk *)page->private; } static int __maybe_unused pcpu_page_idx(unsigned int cpu, int page_idx)