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bh=aZOTevyyG/oq7Dcb/mDg4h3vECd5Czx9C+nnro/i/yI=; b=PrC2Q5i1RZUQ3NoWBymN8xdsDw VN9bzJ75Grrvkb2F/xMhSInJJKrjHYSrDiJu9Xz/AD/RyXELC58gEjFJHB7ADGAX8Tnys8yOuV2bM rfGZ4Lxfxnvu/yaz+Gx5bDS54gJNSJ1nA/CirJF8hbPtLQY4p3WMbWLdnOssESTuhpz5rCCKPj46f yu9xO+DnTP0rAlinUHRpeJ102wP6g7teVzOnYWub18YqnzON7d4UeG1hqCCuU5vuAZZyIy97m2TP9 XbUwm9tLEeZywDy7frHNsQXCf/HZi8bjPWB2O1fMmqwoGpZNoJ8u6m17dNfXibTmPDs85K7YUopTG QAzbF+Kw==; Received: from willy by casper.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1qKWos-001p3q-EK; Sat, 15 Jul 2023 04:23:46 +0000 From: "Matthew Wilcox (Oracle)" To: Johannes Weiner Cc: "Matthew Wilcox (Oracle)" , linux-mm@kvack.org, linux-kernel@vger.kernel.org, vitaly.wool@konsulko.com, cerasuolodomenico@gmail.com, nphamcs@gmail.com, hch@infradead.org, yosryahmed@google.com, akpm@linux-foundation.org Subject: [PATCH 2/5] zswap: Make zswap_store() take a folio Date: Sat, 15 Jul 2023 05:23:40 +0100 Message-Id: <20230715042343.434588-3-willy@infradead.org> X-Mailer: git-send-email 2.37.1 In-Reply-To: <20230715042343.434588-1-willy@infradead.org> References: <20230714194610.828210-1-hannes@cmpxchg.org> <20230715042343.434588-1-willy@infradead.org> MIME-Version: 1.0 X-Rspamd-Queue-Id: 5C80514000B X-Rspam-User: X-Rspamd-Server: rspam05 X-Stat-Signature: n7ek38wxjdibkbwdt4e7wz9zft3431f6 X-HE-Tag: 1689395031-98715 X-HE-Meta: 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 wt8vcbNG gEntoZKP8QC7/84esrEK/PYhC2FVhUwPtjp8ichOTORI+/mf8/yT37g7fgt1zKInRpdHHdajMTGQmOukPQrUjsVTmbvo3PrcHUvl1Y/ml/QuKtasq77Zds5Bb5hxiDqU3NxMYNlu2yOMvKJZebaGHfDuGLT8Zub6RtDA86T5u6gXJ1NHEJDCLiIlEEcjLgI2hvqph3+y5pSZIoxixnFr8UZIcSw+EPuFXv3c6 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: Only convert a few easy parts of this function to use the folio passed in; convert back to struct page for the majority of it. This does remove a few hidden calls to compound_head(). Signed-off-by: Matthew Wilcox (Oracle) --- include/linux/zswap.h | 4 ++-- mm/page_io.c | 2 +- mm/zswap.c | 13 +++++++------ 3 files changed, 10 insertions(+), 9 deletions(-) diff --git a/include/linux/zswap.h b/include/linux/zswap.h index 850c377d9b6d..9f318c8bc367 100644 --- a/include/linux/zswap.h +++ b/include/linux/zswap.h @@ -10,7 +10,7 @@ extern atomic_t zswap_stored_pages; #ifdef CONFIG_ZSWAP -bool zswap_store(struct page *page); +bool zswap_store(struct folio *folio); bool zswap_load(struct page *page); void zswap_invalidate(int type, pgoff_t offset); void zswap_swapon(int type); @@ -18,7 +18,7 @@ void zswap_swapoff(int type); #else -static inline bool zswap_store(struct page *page) +static inline bool zswap_store(struct folio *folio) { return false; } diff --git a/mm/page_io.c b/mm/page_io.c index 32afc2a52982..b9fda7fb4e75 100644 --- a/mm/page_io.c +++ b/mm/page_io.c @@ -198,7 +198,7 @@ int swap_writepage(struct page *page, struct writeback_control *wbc) folio_unlock(folio); return ret; } - if (zswap_store(&folio->page)) { + if (zswap_store(folio)) { folio_start_writeback(folio); folio_unlock(folio); folio_end_writeback(folio); diff --git a/mm/zswap.c b/mm/zswap.c index f6a78e085479..ba50b186ee27 100644 --- a/mm/zswap.c +++ b/mm/zswap.c @@ -1201,11 +1201,12 @@ static void zswap_fill_page(void *ptr, unsigned long value) memset_l(page, value, PAGE_SIZE / sizeof(unsigned long)); } -bool zswap_store(struct page *page) +bool zswap_store(struct folio *folio) { - swp_entry_t swp = { .val = page_private(page), }; + swp_entry_t swp = folio_swap_entry(folio); int type = swp_type(swp); pgoff_t offset = swp_offset(swp); + struct page *page = &folio->page; struct zswap_tree *tree = zswap_trees[type]; struct zswap_entry *entry, *dupentry; struct scatterlist input, output; @@ -1219,11 +1220,11 @@ bool zswap_store(struct page *page) gfp_t gfp; int ret; - VM_WARN_ON_ONCE(!PageLocked(page)); - VM_WARN_ON_ONCE(!PageSwapCache(page)); + VM_WARN_ON_ONCE(!folio_test_locked(folio)); + VM_WARN_ON_ONCE(!folio_test_swapcache(folio)); - /* THP isn't supported */ - if (PageTransHuge(page)) + /* Large folios aren't supported */ + if (folio_test_large(folio)) return false; if (!zswap_enabled || !tree)