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bh=uK8Vt42wFQRzdcmG5GR/Wkh51WwyJybLOsQGLqtZDk0=; b=WylXN9KaKLZCC27qUPd+VKLvzI EEywSDbKYBo1MyvJbciFl8KGyL2yLzGdrPEZ3uKpBHk01qt8OMll5J4+luB2P0CKHS3XazzH19/vk VnF7KdvducHWtJYgDK7RFspQ7razapMZQ/3Nu4AaedbJBRGxiyvqJMr1zjS6PvHId9b+EmD2Z9gb3 VSNUG2wL456sm7IGFeOhAHbB/N/1U3EXity8fcoUbar3SLRB8ZsxMGdy1A8Z4e2BYMLhGU/+Y2YU1 6cdKUXUNwO7yMDl9Pordxy+JPhxLXfBqshlhHmdZaeCFV4ZXUnWRtTcmL0eQdYj9B/L63KQWtJ0Qj 3C8+5NOw==; Received: from willy by casper.infradead.org with local (Exim 4.97.1 #2 (Red Hat Linux)) id 1sgr6V-00000009cql-19FT; Wed, 21 Aug 2024 19:34:47 +0000 From: "Matthew Wilcox (Oracle)" To: Andrew Morton Cc: "Matthew Wilcox (Oracle)" , linux-mm@kvack.org, linux-fsdevel@vger.kernel.org, x86@kernel.org Subject: [PATCH 06/10] mm: Remove PageMlocked Date: Wed, 21 Aug 2024 20:34:39 +0100 Message-ID: <20240821193445.2294269-7-willy@infradead.org> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20240821193445.2294269-1-willy@infradead.org> References: <20240821193445.2294269-1-willy@infradead.org> MIME-Version: 1.0 X-Rspamd-Queue-Id: D0BE7120004 X-Stat-Signature: a79mfndoaheynmsbuiummxmj8igo1f3y X-Rspamd-Server: rspam09 X-Rspam-User: X-HE-Tag: 1724268894-505115 X-HE-Meta: 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 HExoxDWQ uKbAN7oIE10UhVp8ixAm9KLpvgdJFo21ACBc6+ZuT4JPB+z8rtIW9mZ3GWA45hEtAqPPhzeFqKw/KlhGP9pFl48Eo1waaihDrzBOH/YdNNet228LQZKwOdLf/Srhm8JPZpepg8hCIxZ9CFEkc7kIxQtJEXYg7VxYu78a5g5XWsuOecyizqmUKI2byRWu2LipbAVyCR2YvY/y1UV7gr94k1tOcxQ== 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: This flag is now only used on folios, so we can remove all the page accessors. Signed-off-by: Matthew Wilcox (Oracle) --- Documentation/mm/unevictable-lru.rst | 4 ++-- include/linux/page-flags.h | 13 ++++++++----- 2 files changed, 10 insertions(+), 7 deletions(-) diff --git a/Documentation/mm/unevictable-lru.rst b/Documentation/mm/unevictable-lru.rst index 2feb2ed51ae2..255ef12a432b 100644 --- a/Documentation/mm/unevictable-lru.rst +++ b/Documentation/mm/unevictable-lru.rst @@ -253,8 +253,8 @@ Basic Management mlocked pages - pages mapped into a VM_LOCKED VMA - are a class of unevictable pages. When such a page has been "noticed" by the memory management subsystem, -the page is marked with the PG_mlocked flag. This can be manipulated using the -PageMlocked() functions. +the folio is marked with the PG_mlocked flag. This can be manipulated using +folio_set_mlocked() and folio_clear_mlocked() functions. A PG_mlocked page will be placed on the unevictable list when it is added to the LRU. Such pages can be "noticed" by memory management in several places: diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h index bdf24f65d998..f1358f86a673 100644 --- a/include/linux/page-flags.h +++ b/include/linux/page-flags.h @@ -585,12 +585,15 @@ FOLIO_FLAG(unevictable, FOLIO_HEAD_PAGE) FOLIO_TEST_CLEAR_FLAG(unevictable, FOLIO_HEAD_PAGE) #ifdef CONFIG_MMU -PAGEFLAG(Mlocked, mlocked, PF_NO_TAIL) - __CLEARPAGEFLAG(Mlocked, mlocked, PF_NO_TAIL) - TESTSCFLAG(Mlocked, mlocked, PF_NO_TAIL) +FOLIO_FLAG(mlocked, FOLIO_HEAD_PAGE) + __FOLIO_CLEAR_FLAG(mlocked, FOLIO_HEAD_PAGE) + FOLIO_TEST_CLEAR_FLAG(mlocked, FOLIO_HEAD_PAGE) + FOLIO_TEST_SET_FLAG(mlocked, FOLIO_HEAD_PAGE) #else -PAGEFLAG_FALSE(Mlocked, mlocked) __CLEARPAGEFLAG_NOOP(Mlocked, mlocked) - TESTSCFLAG_FALSE(Mlocked, mlocked) +FOLIO_FLAG_FALSE(mlocked) + __FOLIO_CLEAR_FLAG_NOOP(mlocked) + FOLIO_TEST_CLEAR_FLAG_FALSE(mlocked) + FOLIO_TEST_SET_FLAG_FALSE(mlocked) #endif #ifdef CONFIG_ARCH_USES_PG_UNCACHED