From nobody Tue Feb 10 05:45:22 2026 Received: from mail-yw1-f182.google.com (mail-yw1-f182.google.com [209.85.128.182]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7DB1F2701DA for ; Sat, 15 Nov 2025 23:34:47 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.182 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763249689; cv=none; b=TsYbaKv5Y7Y3VzahSJDVOTDo84LWzb4yqN+f3MQnNc3pO+zQtArD9FyKZ1vDfhKAyAsCZQCiON6nSjIc13/RJRKmgPR08V96U1Bol3AJizC0GLLlvIdDtDYDmdLhpSi1/QjNnKlGk88bqcxqr9bPj8COx4KORj67FVlcBCbG/qo= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763249689; c=relaxed/simple; bh=ofxtTHhqb802FVk4Sz/AUTZJyer5O95kDxWgWujt1uQ=; h=From:To:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=ebaLfSgUQGp5YfX7lAaokonmJ8FqrneCIWlTpNIWum755untPegaN+BBJ6nkiZT+e4kneyj/venJbK4PNqvOo67N9keMiUYY6ofGCmlkjku9wrRUje8a5Sw36UXVuF36T4FGJgRQCBQWbw5Advixs/AW6Xug5S9ouMQg7yCWvJE= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=soleen.com; spf=pass smtp.mailfrom=soleen.com; dkim=pass (2048-bit key) header.d=soleen.com header.i=@soleen.com header.b=MU0St5ek; arc=none smtp.client-ip=209.85.128.182 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=soleen.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=soleen.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=soleen.com header.i=@soleen.com header.b="MU0St5ek" Received: by mail-yw1-f182.google.com with SMTP id 00721157ae682-7869deffb47so29921987b3.1 for ; Sat, 15 Nov 2025 15:34:47 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=soleen.com; s=google; t=1763249686; x=1763854486; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:to:from:from:to:cc:subject:date:message-id :reply-to; bh=/eLZ78bp0n4p6Wf1XgYT9EXfbUSCOwy9XSJd2QadY6Y=; b=MU0St5ek5BHZIjMoxb8a/pdJBRZMUeNYvc4Vl6PWIeLG5J2JB65i9eTHN/SrhEYN0y wyYg1CWYQ4SWxauig7H9N8ELoesAOLaqG9WS0S2WmLGe7K0nHQA0RrDhVCwBlu+g16Zv oIYx/CDHRtLWdV1Wr9CAf0rHG2quBj0YLawytcwOJATZAQdqU4f7sraq0weiY9/UQyt7 jR1Z4+Phh2UPcKNpPyIGKEDFHGQrffP/fE4dOxTRabTEsreb5r1l5ugoh/bB06e01vrH C/4av6+QbZdPsShCH9vUEEtiwG0p3S37rBYydBBc8lHDmW9ddIuslt99n/RvNuvcrbN9 iD+w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1763249686; x=1763854486; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:to:from:x-gm-gg:x-gm-message-state:from:to :cc:subject:date:message-id:reply-to; bh=/eLZ78bp0n4p6Wf1XgYT9EXfbUSCOwy9XSJd2QadY6Y=; b=qtpngf9UXJUa4xzHX9yzLGlfXfR545u+gOtL8KNkwFA71H8IjxgFSQC4f9hB2OdQb7 FcE2OPbySwGkiXmtQ1U/I3EanjLP1y+vZMQlVZFByYqQ9+ZXtru0cUCZaSSSTWd6kL2w jfCs9GwqJO6wZTTEpxsMS0R9s32KvuKIcbT/Pyk7zUJpaTYE54/gUD6uVkVnIwO09xuB Sk2EeAPc1mFaQEmhcvQmr7OqyyY7mBW56Y9Rb43fJTaoB6qQTZoosJ58fAGJ2RaKcwoM oypVO23NbUeDkm+kgDYIht247qmH/6PW2GNaNNYLPpSJLg/7+zta1HX2vgBbp+r2nw1G PHUA== X-Forwarded-Encrypted: i=1; AJvYcCV+t05jeR8cYo8KFVMqkEQCnEWrUgHpBx27cFVVsiYeu6aSYGX3ZD3J/2aniCxaj7hT5BD+VjdhsXmraNg=@vger.kernel.org X-Gm-Message-State: AOJu0YyHfFg7zxCiW/BDcq0BNh98QG9D4Q63BUSQarTmNTVvo/s7FtdX 1IBKBdz1jsTTzOc3VAl/cf59NSW1IKBm9t9iwy5x8iLlCBPBC+mNCfrYe82QD2Hw8/U= X-Gm-Gg: ASbGncvJ8U0KwCvu1Z8kNgwaRQgbAWSjD8vJMmq+Acd8vhaaJLS0miXyDw4q8sGi2N1 f9f/6hYfEY5l3I5qZsv+93qN9CKMSkT45+mC4sjf16JgRwsflMn1X21X1hBUC/1j4eoGyJPIpyC 1J/KIiX73z+pBZhMwo+BhMcZSC1SDGFL3gk2DBbXInraxtSGszFJGJYhjfLc74uHhsLzGqOeL+d y9VPDNzp7deH7HKMyBI0Aam/+77TIRGqVOaRaVpYncao1+n+/ypN4vG8z/hJBjvrV7hP2aO/Eml 3ddXbasW4wWXbnrnPxRo9QW4y++JNxqtnF/gCn5fi7mxlkfByWFYIWYPDGS4XkuK3KA5i0NY0ts 3VKyY4GHj+4KcT8yiCdYbA3zd0C4JhNS+71dTXzoAsH58hVc8+oEq+GCvZRpjSJTDgVibNUgEmw Je3pwcrDdFNo63OHW9oMH6V/DEzLuIfRZvfAEcz9YRIBJwY2PhCLZ26frw7hKMOqcsWrxs X-Google-Smtp-Source: AGHT+IHk0jQUizdAzkiK9Xpe2uUL2VAa8k1RUUTK2HykUPyp4K26BcN3/UXlJAExurxnthMVN+vR9Q== X-Received: by 2002:a05:690c:2603:b0:786:5be2:d460 with SMTP id 00721157ae682-78929e29f77mr74299087b3.1.1763249686563; Sat, 15 Nov 2025 15:34:46 -0800 (PST) Received: from soleen.c.googlers.com.com (182.221.85.34.bc.googleusercontent.com. [34.85.221.182]) by smtp.gmail.com with ESMTPSA id 00721157ae682-7882218774esm28462007b3.57.2025.11.15.15.34.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 15 Nov 2025 15:34:45 -0800 (PST) From: Pasha Tatashin To: pratyush@kernel.org, jasonmiu@google.com, graf@amazon.com, pasha.tatashin@soleen.com, rppt@kernel.org, dmatlack@google.com, rientjes@google.com, corbet@lwn.net, rdunlap@infradead.org, ilpo.jarvinen@linux.intel.com, kanie@linux.alibaba.com, ojeda@kernel.org, aliceryhl@google.com, masahiroy@kernel.org, akpm@linux-foundation.org, tj@kernel.org, yoann.congal@smile.fr, mmaurer@google.com, roman.gushchin@linux.dev, chenridong@huawei.com, axboe@kernel.dk, mark.rutland@arm.com, jannh@google.com, vincent.guittot@linaro.org, hannes@cmpxchg.org, dan.j.williams@intel.com, david@redhat.com, joel.granados@kernel.org, rostedt@goodmis.org, anna.schumaker@oracle.com, song@kernel.org, linux@weissschuh.net, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, linux-mm@kvack.org, gregkh@linuxfoundation.org, tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com, x86@kernel.org, hpa@zytor.com, rafael@kernel.org, dakr@kernel.org, bartosz.golaszewski@linaro.org, cw00.choi@samsung.com, myungjoo.ham@samsung.com, yesanishhere@gmail.com, Jonathan.Cameron@huawei.com, quic_zijuhu@quicinc.com, aleksander.lobakin@intel.com, ira.weiny@intel.com, andriy.shevchenko@linux.intel.com, leon@kernel.org, lukas@wunner.de, bhelgaas@google.com, wagi@kernel.org, djeffery@redhat.com, stuart.w.hayes@gmail.com, ptyadav@amazon.de, lennart@poettering.net, brauner@kernel.org, linux-api@vger.kernel.org, linux-fsdevel@vger.kernel.org, saeedm@nvidia.com, ajayachandra@nvidia.com, jgg@nvidia.com, parav@nvidia.com, leonro@nvidia.com, witu@nvidia.com, hughd@google.com, skhawaja@google.com, chrisl@kernel.org Subject: [PATCH v6 13/20] mm: shmem: export some functions to internal.h Date: Sat, 15 Nov 2025 18:33:59 -0500 Message-ID: <20251115233409.768044-14-pasha.tatashin@soleen.com> X-Mailer: git-send-email 2.52.0.rc1.455.g30608eb744-goog In-Reply-To: <20251115233409.768044-1-pasha.tatashin@soleen.com> References: <20251115233409.768044-1-pasha.tatashin@soleen.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" From: Pratyush Yadav shmem_inode_acct_blocks(), shmem_recalc_inode(), and shmem_add_to_page_cache() are used by shmem_alloc_and_add_folio(). This functionality will also be used in the future by Live Update Orchestrator (LUO) to recreate memfd files after a live update. Signed-off-by: Pratyush Yadav Signed-off-by: Pasha Tatashin Reviewed-by: Mike Rapoport (Microsoft) --- mm/internal.h | 6 ++++++ mm/shmem.c | 10 +++++----- 2 files changed, 11 insertions(+), 5 deletions(-) diff --git a/mm/internal.h b/mm/internal.h index 1561fc2ff5b8..4ba155524f80 100644 --- a/mm/internal.h +++ b/mm/internal.h @@ -1562,6 +1562,12 @@ void __meminit __init_page_from_nid(unsigned long pf= n, int nid); unsigned long shrink_slab(gfp_t gfp_mask, int nid, struct mem_cgroup *memc= g, int priority); =20 +int shmem_add_to_page_cache(struct folio *folio, + struct address_space *mapping, + pgoff_t index, void *expected, gfp_t gfp); +int shmem_inode_acct_blocks(struct inode *inode, long pages); +bool shmem_recalc_inode(struct inode *inode, long alloced, long swapped); + #ifdef CONFIG_SHRINKER_DEBUG static inline __printf(2, 0) int shrinker_debugfs_name_alloc( struct shrinker *shrinker, const char *fmt, va_list ap) diff --git a/mm/shmem.c b/mm/shmem.c index 05c3db840257..c3dc4af59c14 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -219,7 +219,7 @@ static inline void shmem_unacct_blocks(unsigned long fl= ags, long pages) vm_unacct_memory(pages * VM_ACCT(PAGE_SIZE)); } =20 -static int shmem_inode_acct_blocks(struct inode *inode, long pages) +int shmem_inode_acct_blocks(struct inode *inode, long pages) { struct shmem_inode_info *info =3D SHMEM_I(inode); struct shmem_sb_info *sbinfo =3D SHMEM_SB(inode->i_sb); @@ -435,7 +435,7 @@ static void shmem_free_inode(struct super_block *sb, si= ze_t freed_ispace) * * Return: true if swapped was incremented from 0, for shmem_writeout(). */ -static bool shmem_recalc_inode(struct inode *inode, long alloced, long swa= pped) +bool shmem_recalc_inode(struct inode *inode, long alloced, long swapped) { struct shmem_inode_info *info =3D SHMEM_I(inode); bool first_swapped =3D false; @@ -861,9 +861,9 @@ static void shmem_update_stats(struct folio *folio, int= nr_pages) /* * Somewhat like filemap_add_folio, but error if expected item has gone. */ -static int shmem_add_to_page_cache(struct folio *folio, - struct address_space *mapping, - pgoff_t index, void *expected, gfp_t gfp) +int shmem_add_to_page_cache(struct folio *folio, + struct address_space *mapping, + pgoff_t index, void *expected, gfp_t gfp) { XA_STATE_ORDER(xas, &mapping->i_pages, index, folio_order(folio)); unsigned long nr =3D folio_nr_pages(folio); --=20 2.52.0.rc1.455.g30608eb744-goog