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[2003:d8:2f2d:2400:4052:3b5:fff9:4ed0]) by smtp.gmail.com with UTF8SMTPSA id 5b1f17b1804b1-4535eac8edbsm3459385e9.24.2025.06.18.10.41.33 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 18 Jun 2025 10:41:35 -0700 (PDT) From: David Hildenbrand To: linux-kernel@vger.kernel.org Cc: linux-mm@kvack.org, linux-doc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, virtualization@lists.linux.dev, linux-fsdevel@vger.kernel.org, David Hildenbrand , Andrew Morton , Jonathan Corbet , Madhavan Srinivasan , Michael Ellerman , Nicholas Piggin , Christophe Leroy , Jerrin Shaji George , Arnd Bergmann , Greg Kroah-Hartman , "Michael S. Tsirkin" , Jason Wang , Xuan Zhuo , =?UTF-8?q?Eugenio=20P=C3=A9rez?= , Alexander Viro , Christian Brauner , Jan Kara , Zi Yan , Matthew Brost , Joshua Hahn , Rakie Kim , Byungchul Park , Gregory Price , Ying Huang , Alistair Popple , Lorenzo Stoakes , "Liam R. Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , "Matthew Wilcox (Oracle)" , Minchan Kim , Sergey Senozhatsky , Brendan Jackman , Johannes Weiner , Jason Gunthorpe , John Hubbard , Peter Xu , Xu Xin , Chengming Zhou , Miaohe Lin , Naoya Horiguchi , Oscar Salvador , Rik van Riel , Harry Yoo , Qi Zheng , Shakeel Butt Subject: [PATCH RFC 29/29] mm/balloon_compaction: provide single balloon_page_insert() and balloon_mapping_gfp_mask() Date: Wed, 18 Jun 2025 19:40:12 +0200 Message-ID: <20250618174014.1168640-30-david@redhat.com> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250618174014.1168640-1-david@redhat.com> References: <20250618174014.1168640-1-david@redhat.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Let's just special-case based on IS_ENABLED(CONFIG_BALLOON_COMPACTION like we did for balloon_page_finalize(). Signed-off-by: David Hildenbrand --- include/linux/balloon_compaction.h | 42 +++++++++++------------------- 1 file changed, 15 insertions(+), 27 deletions(-) diff --git a/include/linux/balloon_compaction.h b/include/linux/balloon_com= paction.h index 2fecfead91d26..7cfe48769239e 100644 --- a/include/linux/balloon_compaction.h +++ b/include/linux/balloon_compaction.h @@ -77,6 +77,15 @@ static inline void balloon_devinfo_init(struct balloon_d= ev_info *balloon) =20 #ifdef CONFIG_BALLOON_COMPACTION extern const struct movable_operations balloon_mops; +/* + * balloon_page_device - get the b_dev_info descriptor for the balloon dev= ice + * that enqueues the given page. + */ +static inline struct balloon_dev_info *balloon_page_device(struct page *pa= ge) +{ + return (struct balloon_dev_info *)page_private(page); +} +#endif /* CONFIG_BALLOON_COMPACTION */ =20 /* * balloon_page_insert - insert a page into the balloon's page list and ma= ke @@ -91,41 +100,20 @@ static inline void balloon_page_insert(struct balloon_= dev_info *balloon, struct page *page) { __SetPageOffline(page); - SetPageMovableOps(page); - set_page_private(page, (unsigned long)balloon); - list_add(&page->lru, &balloon->pages); -} - -/* - * balloon_page_device - get the b_dev_info descriptor for the balloon dev= ice - * that enqueues the given page. - */ -static inline struct balloon_dev_info *balloon_page_device(struct page *pa= ge) -{ - return (struct balloon_dev_info *)page_private(page); -} - -static inline gfp_t balloon_mapping_gfp_mask(void) -{ - return GFP_HIGHUSER_MOVABLE; -} - -#else /* !CONFIG_BALLOON_COMPACTION */ - -static inline void balloon_page_insert(struct balloon_dev_info *balloon, - struct page *page) -{ - __SetPageOffline(page); + if (IS_ENABLED(CONFIG_BALLOON_COMPACTION)) { + SetPageMovableOps(page); + set_page_private(page, (unsigned long)balloon); + } list_add(&page->lru, &balloon->pages); } =20 static inline gfp_t balloon_mapping_gfp_mask(void) { + if (IS_ENABLED(CONFIG_BALLOON_COMPACTION)) + return GFP_HIGHUSER_MOVABLE; return GFP_HIGHUSER; } =20 -#endif /* CONFIG_BALLOON_COMPACTION */ - /* * balloon_page_finalize - prepare a balloon page that was removed from the * balloon list for release to the page allocator --=20 2.49.0