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Fri, 20 Jan 2023 16:56:27 -0800 (PST) From: "Vishal Moola (Oracle)" To: linux-mm@kvack.org Cc: akpm@linux-foundation.org, willy@infradead.org, sidhartha.kumar@oracle.com, linux-kernel@vger.kernel.org, "Vishal Moola (Oracle)" Subject: [PATCH 1/3] mm: Add folio_movable_ops() Date: Fri, 20 Jan 2023 16:56:20 -0800 Message-Id: <20230121005622.57808-2-vishal.moola@gmail.com> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20230121005622.57808-1-vishal.moola@gmail.com> References: <20230121005622.57808-1-vishal.moola@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Stat-Signature: wwhrigcx3sbp5f71g8tu8coctmrjkfon X-Rspam-User: X-Rspamd-Queue-Id: B94131C0003 X-Rspamd-Server: rspam06 X-HE-Tag: 1674262588-525609 X-HE-Meta: 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 vQWLbEly 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 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: folio_movable_ops() does the same as page_movable_ops() except uses folios instead of pages. This function will help make folio conversions in mm/migrate.c more readable. Signed-off-by: Vishal Moola (Oracle) --- include/linux/migrate.h | 9 +++++++++ mm/migrate.c | 2 +- 2 files changed, 10 insertions(+), 1 deletion(-) diff --git a/include/linux/migrate.h b/include/linux/migrate.h index 3ef77f52a4f0..bdff950a8bb4 100644 --- a/include/linux/migrate.h +++ b/include/linux/migrate.h @@ -122,6 +122,15 @@ static inline bool folio_test_movable(struct folio *folio) return PageMovable(&folio->page); } +static inline +const struct movable_operations *folio_movable_ops(struct folio *folio) +{ + VM_BUG_ON(!__folio_test_movable(folio)); + + return (const struct movable_operations *) + ((unsigned long)folio->mapping - PAGE_MAPPING_MOVABLE); +} + static inline const struct movable_operations *page_movable_ops(struct page *page) { diff --git a/mm/migrate.c b/mm/migrate.c index a4d3fc65085f..4c1776445c74 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -973,7 +973,7 @@ static int move_to_new_folio(struct folio *dst, struct folio *src, goto out; } - mops = page_movable_ops(&src->page); + mops = folio_movable_ops(src); rc = mops->migrate_page(&dst->page, &src->page, mode); WARN_ON_ONCE(rc == MIGRATEPAGE_SUCCESS && !folio_test_isolated(src)); -- 2.38.1