From owner-freebsd-amd64@freebsd.org Sat May 14 20:04:12 2016 Return-Path: Delivered-To: freebsd-amd64@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 624F0B3B962 for ; Sat, 14 May 2016 20:04:12 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2001:1900:2254:206a::16:76]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 532051BFD for ; Sat, 14 May 2016 20:04:12 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from bugs.freebsd.org ([127.0.1.118]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id u4EK4BsH047783 for ; Sat, 14 May 2016 20:04:12 GMT (envelope-from bugzilla-noreply@freebsd.org) From: bugzilla-noreply@freebsd.org To: freebsd-amd64@FreeBSD.org Subject: [Bug 206238] FUSE can't enter to DIRECT_IO mode during file create. Date: Sat, 14 May 2016 20:04:11 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 10.2-STABLE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Some People X-Bugzilla-Who: commit-hook@freebsd.org X-Bugzilla-Status: In Progress X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: rmacklem@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-Mailman-Approved-At: Sat, 14 May 2016 20:55:02 +0000 X-BeenThere: freebsd-amd64@freebsd.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: Porting FreeBSD to the AMD64 platform List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 14 May 2016 20:04:12 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D206238 --- Comment #8 from commit-hook@freebsd.org --- A commit references this bug: Author: rmacklem Date: Sat May 14 20:03:22 UTC 2016 New revision: 299753 URL: https://svnweb.freebsd.org/changeset/base/299753 Log: Fix fuse to use DIRECT_IO when required. When a file is opened write-only and a partial block was written, buffered I/O would try and read the whole block in. This would result in a hung thread, since there was no open (fuse filehandle) that allowed reading. This patch avoids the problem by forcing DIRECT_IO for this case. It also sets DIRECT_IO when the file system specifies the FN_DIRECTIO flag in its reply to the open. Tested by: nishida@asusa.net, freebsd@moosefs.com PR: 194293, 206238 MFC after: 2 weeks Changes: head/sys/fs/fuse/fuse_file.c head/sys/fs/fuse/fuse_vnops.c --=20 You are receiving this mail because: You are on the CC list for the bug.=