From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-ej1-f51.google.com (mail-ej1-f51.google.com [209.85.218.51]) (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 A2A471AED3F; Wed, 11 Sep 2024 16:34:27 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.218.51 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1726072469; cv=none; b=KmIb+/88tQ10d+ljklVzULApk/7Ujdm+IdoG7SCX+jeWPgc6P1sLMCc4x802SsO15U6WunYQ2ILkhdS0jsjWOZlgXtcwBfCcG0TpbX5zvuzKKVufrpRqWwfLjbXfBnxwEEBG3tZxRpjs23gAY5JHHwWgqhA9sEn/WoacfNx3M+M= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1726072469; c=relaxed/simple; bh=JrAOgMM2iAIABQmCU3ZV4QTcl0u9rm5SIWFUspGZWXA=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=N/Sce4j31eehEsIz+38L2Or5UeYOUt11ZATMd1+I/EgL4wpaa9bkoh3VTXtljDZW89uwCNVfP1n9x9KdnIL1N4OzACVS3zjVGvM9L8JcR9ME9OdoZFR4iKJ2cWh+p3OE4tSM+uK1rnNA0OOcpdtAwmQldhc8pOHTaKzhB0oRzy8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=YvzCwbfb; arc=none smtp.client-ip=209.85.218.51 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="YvzCwbfb" Received: by mail-ej1-f51.google.com with SMTP id a640c23a62f3a-a8a7596b7dfso192652766b.0; Wed, 11 Sep 2024 09:34:27 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1726072466; x=1726677266; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=2XjW/1z5M+e5L1HlSBo37JIC76JYeYPBxc+HZavMul8=; b=YvzCwbfbVbEXy1873OZRCktgLD9hwfSRVXTrkYus0CFjMRimUyLMTMtUYS5maimzFH L5tJYz0hgMnWxrfrPcxUd5ZzdVmQ1thcZkflgNaNBNcdsgd1FCFatOBA9egbKxaPAGFw +72u/7tQ1LY4lb/Hc4FNa9A0xMqRHXgrn5mIFknEwfYFh0h1m4zUnn/Hdwtu+9Fb4ZIk 51T+i3NViem8BEJwGWFNuY0WS7mRm4yvImFhIGXhVoPltbycUYtouYZt38b77qegO5bk EGwqO/cIweGpDcJoPGsl2dpo9cR4PJjWzTFKWDcnnfF3UoWTsezRXAShCZUhxjuPtpko BSJA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1726072466; x=1726677266; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=2XjW/1z5M+e5L1HlSBo37JIC76JYeYPBxc+HZavMul8=; b=BEfc41FTOfWDwKbawvo0e/zbQcVeGEUWpLh92EhBJ2IxrLfvbRkVqlcQV8P6kFz1s4 HfGC61JT9+G8N69NFdXEyM5CYbHYiXukJa9qCuufG9rzYBwDoE+T+plPZaPYrU8z+Aqb aycvhZjJcYOH2dlEjhKYsOF1rCo/UaCC4ZXb4EcWDNgigCB2Lq1DE+oFuSxcaSIV5AOl yWyTVSVNkI1SNus2TZcdyOMIyLwNs7JJKVlmmcuu0ixDKuanE+nJR9ONMRp7njaknwU+ 721jGL8y4jd1OCXmYzjulH9/uqI9YQRbKwSwWyY50xn0EVRfRLPJdydpDi/dFGtrD3a8 B8ZA== X-Forwarded-Encrypted: i=1; AJvYcCUDAn2FxJMQt6iGXmsj81HqUGElRofMEOK7wcXkRFZPPIIRGNCQV4CsxN1PO5tcjpYVX8Hbid7zFInugA==@vger.kernel.org X-Gm-Message-State: AOJu0Yxgwwg8I+zEQh4FCDXzCHP2cqPoQnDnIbt7AHtZyJNSmwabl9W8 kAJCuX64WT3xGOLWZt+HlMlxNpaEx4cEyfY9NxYq3APpWaJ23iXNe7jLpa1Q X-Google-Smtp-Source: AGHT+IFMn90AnKpQjlSSfbL+WudXYP6lMWX8+dJQnqeRgseHvIS6DUoUvcDEA12mRbA7+KIVujg4Mw== X-Received: by 2002:a17:907:94d4:b0:a8d:141a:87cb with SMTP id a640c23a62f3a-a8ffb2459a6mr490300366b.18.1726072464867; Wed, 11 Sep 2024 09:34:24 -0700 (PDT) Received: from 127.0.0.1localhost ([163.114.131.193]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-a8d25c72ed3sm631820866b.135.2024.09.11.09.34.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 11 Sep 2024 09:34:23 -0700 (PDT) From: Pavel Begunkov To: io-uring@vger.kernel.org Cc: Jens Axboe , asml.silence@gmail.com, linux-block@vger.kernel.org, linux-mm@kvack.org, Christoph Hellwig Subject: [PATCH v5 3/8] filemap: introduce filemap_invalidate_pages Date: Wed, 11 Sep 2024 17:34:39 +0100 Message-ID: X-Mailer: git-send-email 2.45.2 In-Reply-To: References: Precedence: bulk X-Mailing-List: io-uring@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit kiocb_invalidate_pages() is useful for the write path, however not everything is backed by kiocb and we want to reuse the function for bio based discard implementation. Extract and and reuse a new helper called filemap_invalidate_pages(), which takes a argument indicating whether it should be non-blocking and might return -EAGAIN. Signed-off-by: Pavel Begunkov --- include/linux/pagemap.h | 2 ++ mm/filemap.c | 17 ++++++++++++----- 2 files changed, 14 insertions(+), 5 deletions(-) diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h index d9c7edb6422b..e39c3a7ce33c 100644 --- a/include/linux/pagemap.h +++ b/include/linux/pagemap.h @@ -32,6 +32,8 @@ int invalidate_inode_pages2_range(struct address_space *mapping, pgoff_t start, pgoff_t end); int kiocb_invalidate_pages(struct kiocb *iocb, size_t count); void kiocb_invalidate_post_direct_write(struct kiocb *iocb, size_t count); +int filemap_invalidate_pages(struct address_space *mapping, + loff_t pos, loff_t end, bool nowait); int write_inode_now(struct inode *, int sync); int filemap_fdatawrite(struct address_space *); diff --git a/mm/filemap.c b/mm/filemap.c index d62150418b91..6843ed4847d4 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -2712,14 +2712,12 @@ int kiocb_write_and_wait(struct kiocb *iocb, size_t count) } EXPORT_SYMBOL_GPL(kiocb_write_and_wait); -int kiocb_invalidate_pages(struct kiocb *iocb, size_t count) +int filemap_invalidate_pages(struct address_space *mapping, + loff_t pos, loff_t end, bool nowait) { - struct address_space *mapping = iocb->ki_filp->f_mapping; - loff_t pos = iocb->ki_pos; - loff_t end = pos + count - 1; int ret; - if (iocb->ki_flags & IOCB_NOWAIT) { + if (nowait) { /* we could block if there are any pages in the range */ if (filemap_range_has_page(mapping, pos, end)) return -EAGAIN; @@ -2738,6 +2736,15 @@ int kiocb_invalidate_pages(struct kiocb *iocb, size_t count) return invalidate_inode_pages2_range(mapping, pos >> PAGE_SHIFT, end >> PAGE_SHIFT); } + +int kiocb_invalidate_pages(struct kiocb *iocb, size_t count) +{ + struct address_space *mapping = iocb->ki_filp->f_mapping; + + return filemap_invalidate_pages(mapping, iocb->ki_pos, + iocb->ki_pos + count - 1, + iocb->ki_flags & IOCB_NOWAIT); +} EXPORT_SYMBOL_GPL(kiocb_invalidate_pages); /** -- 2.45.2