From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-wr1-f51.google.com (mail-wr1-f51.google.com [209.85.221.51]) (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 302C438C2CB for ; Mon, 13 Apr 2026 21:06:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.221.51 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776114387; cv=none; b=iWYUK5Xj76ffXUDw232c+fnRI1CfX/kY76fV6gbzQ2RjBB6++wKleMpZ7+WWoECpvZqzkbdo3eAZov7W+XAaVNC/nVvYbdpW0AJJuMBgHDda2n1A7IlVFfJweaMEu8gywXDXjGT4ynHe5f0QVINrsDsPNIODBb4Z38xMWxrp0Mc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776114387; c=relaxed/simple; bh=ESRzkVvOWER4qlZIiaT0hCchCEOjI9Koyz6YvBEQsqI=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=bOvjbz/6brLmRDzYiPwXfuT8fboy55uc9X0UeJRviTaJRDACZyDNpe11QgpFuV+YLnP3EVhedcJG/z+1S2oR1Ffrwfdi/5xdc4V79/fOGiZtQlRXl0maqBB/AzlUyde060OiRpW+n6vk/QS+DaGJhtirO5rCY3hEjQat7Aa9mOU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=hackers.camp; spf=pass smtp.mailfrom=gmail.com; arc=none smtp.client-ip=209.85.221.51 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=hackers.camp Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Received: by mail-wr1-f51.google.com with SMTP id ffacd0b85a97d-43cf5ba9b93so365835f8f.2 for ; Mon, 13 Apr 2026 14:06:26 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1776114384; x=1776719184; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=efycFkVlY38OPi/zLUsHHPWsJjhRjzXk7nam0qEsQhs=; b=p/WBQmDk9EizZRkTAz7fENgnGMZ6StsPx74Y+LGFyKy/pra2XeBjrCQFdHj6MHWX2u r73+DsfkqEqRTLVPfgTW3x73nyvQo+wr5ckBi6uqzDmnhpvezXr3R9WekiazZrwk+hX1 4pdaV714psizbUeFW92/8aFRRiePdOiRBpkT/ZIYp4dCIupjx14Kt152rjYqF1JpttAc ySl4iXL+HwgpEcLmfbeuYbjpiDmWCq6Nif6vBi44E4FS+rtDqDpwbDDXxnuQsw4mOoaE TWQj2KuW408giakIN3zbHYtdTQzFwXUEYBVxa4w6z+sNkPWsWeRtBJ2weTYoF3vrRa8X tdig== X-Gm-Message-State: AOJu0YzPvgVg6I1RRoe7LhCWHXL8kxNlpvlyh/noAzUfMRm8XbMOUbfS yr8w+G28svvRdipXcVO5UpxIgGxB5GXsaoPG57/A4cAeKLxAvZ/x9baa5lemff6FzRo= X-Gm-Gg: AeBDieuClQb0XFOk4Ka9gNvufWl9gqUCN2NPkBAxSqcy5tGFL3R2JcQXsXQR0V9/MQr dJOVOJmSJY9KY/odTPzhTmDjTsoYSLbLJr32ROy02u+Sx+NCFbS0UBxITFQNtL+TUTyT9fd9kEZ 3F9tWMH62ewLXCpelW/Qvl60QkUZwE6ErSo456YZpFYh7qXiKnPme3D0mvO2wNVoi5THApAeNuY p9C97hwea3PSgpLYulhUFiGUky8NUifuqRQKY+amBQQbTo3eyeiwtVVnj3hDO2T6yTuRnPfKU7g xgSdEfehw4r2V6wMN3Rvr7g73jz0GTekd6F7Vum5WkYMu5gYpT6mFj4DsEJv/Lz1tQ5osyAaIu3 aO/NdmrbaZGFvHC4ezqDPTJXWp8ZFxkeCp/MwjowP9Te1qS5ih/M8gJayYukz0UcgwW9auaklbW 028Tes1WN+4M9hkywhNy3FjRSF1RLLTwzbis8TctptJnIiLpMnvMqJBqE2IhX2wJz9t6SwckI76 rju X-Received: by 2002:a05:6000:481e:b0:43d:64c6:1765 with SMTP id ffacd0b85a97d-43d65267229mr9435381f8f.2.1776114384316; Mon, 13 Apr 2026 14:06:24 -0700 (PDT) Received: from spartian-1.home ([2a01:cb1c:784:2f00:708:2805:7128:7a75]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-43d63e5c98fsm35130020f8f.35.2026.04.13.14.06.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 13 Apr 2026 14:06:23 -0700 (PDT) From: Aurelien DESBRIERES To: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Aurelien DESBRIERES , viro@zeniv.linux.org.uk, brauner@kernel.org, willy@infradead.org, djwong@kernel.org, adilger@dilger.ca, pfalcato@suse.de Subject: [PATCH v2 05/11] ftrfs: add file operations Date: Tue, 14 Apr 2026 01:05:46 +0200 Message-ID: <20260413230601.525400-6-aurelien@hackers.camp> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20260413230601.525400-1-aurelien@hackers.camp> References: <20260413230601.525400-1-aurelien@hackers.camp> Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Implement basic file read/write using generic VFS helpers: - ftrfs_file_operations: generic_file_read_iter, generic_file_write_iter - ftrfs_file_inode_operations: getattr via simple_getattr - ftrfs_address_space_operations: readpage via block_read_full_folio, writepage via block_write_full_folio, bmap via generic_block_bmap Read path delegates to the page cache via generic helpers. Write path is wired but depends on the block allocator (alloc.c) and write_inode (namei.c) for persistence. Signed-off-by: Aurelien DESBRIERES --- fs/ftrfs/file.c | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) create mode 100644 fs/ftrfs/file.c diff --git a/fs/ftrfs/file.c b/fs/ftrfs/file.c new file mode 100644 index 000000000..ef121359b --- /dev/null +++ b/fs/ftrfs/file.c @@ -0,0 +1,25 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * FTRFS — File operations (skeleton) + * Author: roastercode - Aurelien DESBRIERES + * + * NOTE: read/write use generic_file_* for now. + * The EDAC/RS layer will intercept at the block I/O level (next iteration). + */ + +#include +#include +#include "ftrfs.h" + +const struct file_operations ftrfs_file_operations = { + .llseek = generic_file_llseek, + .read_iter = generic_file_read_iter, + .write_iter = generic_file_write_iter, + .mmap = generic_file_mmap, + .fsync = generic_file_fsync, + .splice_read = filemap_splice_read, +}; + +const struct inode_operations ftrfs_file_inode_operations = { + .getattr = simple_getattr, +}; -- 2.52.0