Dave Chinner <david@xxxxxxxxxxxxx> writes: > On Thu, Oct 09, 2014 at 06:57:22PM +0400, Dmitry Monakhov wrote: >> Original report: https://lkml.org/lkml/2014/10/8/545 >> perform AIO-DIO and fcntl(F_SETFL) concurently >> Unaligned AIO likely result in synchronization which makes racewindow wider. >> >> changes from v1->v2 >> - Properly reuse aio context > > Couple of things below.... > >> >> Signed-off-by: Dmitry Monakhov <dmonakhov@xxxxxxxxxx> >> --- >> src/aio-dio-regress/aio-dio-fcntl-race.c | 148 ++++++++++++++++++++++++++++++ >> tests/generic/326 | 51 ++++++++++ >> tests/generic/326.out | 2 + >> tests/generic/group | 1 + >> 4 files changed, 202 insertions(+), 0 deletions(-) >> create mode 100644 src/aio-dio-regress/aio-dio-fcntl-race.c >> create mode 100755 tests/generic/326 >> create mode 100644 tests/generic/326.out >> >> diff --git a/src/aio-dio-regress/aio-dio-fcntl-race.c b/src/aio-dio-regress/aio-dio-fcntl-race.c >> new file mode 100644 >> index 0000000..835dbdf >> --- /dev/null >> +++ b/src/aio-dio-regress/aio-dio-fcntl-race.c >> @@ -0,0 +1,148 @@ >> +/* >> + * Perform aio writes to file and toggle O_DIRECT flag concurrently >> + * this may trigger race between file->f_flags read and modification >> + * unuligned aio allow to makes race window wider. >> + * Regression test for https://lkml.org/lkml/2014/10/8/545 >> + * >> + * Copyright (C) 2010 Red Hat, Inc. All Rights reserved. > > YOu must have copied the code from somewhere. Can you add a note to > say where it came from in the patch description? And if you added > any significant modifications, you should add your own copyright to > it as well... > >> diff --git a/tests/generic/326 b/tests/generic/326 >> new file mode 100755 >> index 0000000..8975a91 >> --- /dev/null >> +++ b/tests/generic/326 >> @@ -0,0 +1,51 @@ >> +#! /bin/bash >> +# FS QA Test No. 326 > > Can you rename this to the first unused generic test? Ok. I thought that I should use latest_used+1. And copy-paste other aio-dio test. I've fixed './new' script according to your comments and regenerated the test Please find updated version in your mbox Message-Id: <1413295189-28530-1-git-send-email-dmonakhov@xxxxxxxxxx> Message-Id: <1413295189-28530-2-git-send-email-dmonakhov@xxxxxxxxxx> > >> +# Run aio-dio-fcntl-race - test aio write race with O_DIRECT toggle >> +# >> +#----------------------------------------------------------------------- >> +# Copyright (c) 2009 Dmitry Monakhov. All Rights Reserved. > > 2009 doesn't seem right for a test that was just written... > > Cheers, > > Dave. > -- > Dave Chinner > david@xxxxxxxxxxxxx > -- > To unsubscribe from this list: send the line "unsubscribe fstests" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html
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