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[23.128.96.18]) by mx.google.com with ESMTP id t22si5563062edi.249.2020.05.22.18.54.18; Fri, 22 May 2020 18:54:41 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel-dk.20150623.gappssmtp.com header.s=20150623 header.b=kBqllv8u; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387545AbgEWBvC (ORCPT + 99 others); Fri, 22 May 2020 21:51:02 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46932 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2387427AbgEWBvB (ORCPT ); Fri, 22 May 2020 21:51:01 -0400 Received: from mail-pf1-x441.google.com (mail-pf1-x441.google.com [IPv6:2607:f8b0:4864:20::441]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AD750C08C5C1 for ; Fri, 22 May 2020 18:51:00 -0700 (PDT) Received: by mail-pf1-x441.google.com with SMTP id y198so6014750pfb.4 for ; Fri, 22 May 2020 18:51:00 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel-dk.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=TvoN8a3WZmoogVlnFEo2G3/jPQNtfJ5pQXb6VgaLeNI=; b=kBqllv8uys4gT00yGgiunqjeponh5Nq8C8hpBlk3I4cc90Q/f4dSIrnyLUyS/Afz+r 0RJjV5F56+x6vupgwbgihJ4FmQ+NkFT9yuigJ6Nrmv3UBWv/0wNOHnYiCzYr1tDtGjo4 9QNHGjZJ73Y4XECmG7jLNdlmlEi4tPrvSdreIls5bnHJThbD/p6olZ03f+MUeQeVDE0I fOxDlTpgsFLX4TUxiHF9FjuRx6OsKHlg1Buy7Ts/XS6Ufe5If00TpoJC+Nr3HjuUQ2OT CVD6/VP0MSTt+JfzQ458ZhXnJAR2xxZGCO3gBrUjQrNTGpi1xfAoufFvveKQSv3Db8J8 hfag== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=TvoN8a3WZmoogVlnFEo2G3/jPQNtfJ5pQXb6VgaLeNI=; b=Xp4aPHyap7pKVWYnROrRKTBwmZJz2TZc2wRUaZhN+Id5ezY35Lmca/v9zzUzyZfFtB bkwAUoGLuR3KkUZ13Pkiu6bGzNNZRiVfjtZ3xLDhB0Z9I3qJ/VDYeOnB4BLscuKR2J4N 2NydWenwCMb/UlrJanrVCd2n5guCfcJyTcjMA+GNz27rZGBNVyySCc5r6PmQExExSAyf g4ZEYJu5Omzm9uYdv7FpRc5t2iI3rrqoOSweVjsUe6m3IV1e4XsaAcxWUSj35g79kjBV RrULonL6OvtsVo3X3TGzwL0/3SjwrK48cumljP4pccTm7bCYFH1+uu6gh9JFp8h7Fwgk XVcg== X-Gm-Message-State: AOAM533SVFjPYvfMXcmrFFXPjNF0/cg+LuRb36OLHOW8N8ranVKWSQ8K ZpKcNeXvbFfOmaxZIDKDaM8VAA== X-Received: by 2002:a62:754f:: with SMTP id q76mr6783393pfc.14.1590198660209; Fri, 22 May 2020 18:51:00 -0700 (PDT) Received: from x1.lan ([2605:e000:100e:8c61:e0db:da55:b0a4:601]) by smtp.gmail.com with ESMTPSA id a71sm8255477pje.0.2020.05.22.18.50.59 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 22 May 2020 18:50:59 -0700 (PDT) From: Jens Axboe To: io-uring@vger.kernel.org Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, Jens Axboe Subject: [PATCH 02/11] mm: allow read-ahead with IOCB_NOWAIT set Date: Fri, 22 May 2020 19:50:40 -0600 Message-Id: <20200523015049.14808-3-axboe@kernel.dk> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200523015049.14808-1-axboe@kernel.dk> References: <20200523015049.14808-1-axboe@kernel.dk> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The read-ahead shouldn't block, so allow it to be done even if IOCB_NOWAIT is set in the kiocb. Signed-off-by: Jens Axboe --- mm/filemap.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/mm/filemap.c b/mm/filemap.c index 23a051a7ef0f..80747f1377d5 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -2031,8 +2031,6 @@ static ssize_t generic_file_buffered_read(struct kiocb *iocb, page = find_get_page(mapping, index); if (!page) { - if (iocb->ki_flags & IOCB_NOWAIT) - goto would_block; page_cache_sync_readahead(mapping, ra, filp, index, last_index - index); -- 2.26.2