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From: Bart Van Assche <bvanassche@acm.org>
To: Jens Axboe <axboe@kernel.dk>,
	linux-block@vger.kernel.org, linux-fsdevel@vger.kernel.org,
	linux-aio@kvack.org
Cc: hch@lst.de
Subject: Re: [PATCH 01/27] aio: fix failure to put the file pointer
Date: Fri, 30 Nov 2018 09:24:21 -0800	[thread overview]
Message-ID: <1543598661.4347.8.camel@acm.org> (raw)
In-Reply-To: <52910028-205c-adc5-acc0-3f03e35ece66@kernel.dk>

On Fri, 2018-11-30 at 10:08 -0700, Jens Axboe wrote:
> On 11/30/18 10:07 AM, Bart Van Assche wrote:
> > On Fri, 2018-11-30 at 09:56 -0700, Jens Axboe wrote:
> > > If the ioprio capability check fails, we return without putting
> > > the file pointer.
> > > 
> > > Fixes: d9a08a9e616b ("fs: Add aio iopriority support")
> > > Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
> > > Reviewed-by: Christoph Hellwig <hch@lst.de>
> > > Signed-off-by: Jens Axboe <axboe@kernel.dk>
> > > ---
> > >  fs/aio.c | 1 +
> > >  1 file changed, 1 insertion(+)
> > > 
> > > diff --git a/fs/aio.c b/fs/aio.c
> > > index b984918be4b7..205390c0c1bb 100644
> > > --- a/fs/aio.c
> > > +++ b/fs/aio.c
> > > @@ -1436,6 +1436,7 @@ static int aio_prep_rw(struct kiocb *req, struct iocb *iocb)
> > >  		ret = ioprio_check_cap(iocb->aio_reqprio);
> > >  		if (ret) {
> > >  			pr_debug("aio ioprio check cap error: %d\n", ret);
> > > +			fput(req->ki_filp);
> > >  			return ret;
> > >  		}
> > 
> > Since this patch fixes a bug that was introduced in kernel v4.18, does this
> > patch need a "Cc: stable" tag?
> 
> The fixes should take care of that by itself, I hope.

Hi Jens,

My understanding is that patches that have a "Cc: stable" tag are guaranteed to
be integrated in a stable kernel sooner or later. Without that tag it depends on
the stable kernel maintainer whether or not these patches get picked up. I think
the "AUTOSEL" tag Sasha Levin uses indicates that a patch was picked up for one
of his stable kernels and that it did not have a "Cc: stable" tag. I'm not sure
Greg KH picks up patches that only have a "Fixes:" tag but no "Cc: stable" tag.

Bart.

  reply	other threads:[~2018-11-30 17:24 UTC|newest]

Thread overview: 59+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-11-30 16:56 [PATCHSET v4] Support for polled aio Jens Axboe
2018-11-30 16:56 ` [PATCH 01/27] aio: fix failure to put the file pointer Jens Axboe
2018-11-30 17:07   ` Bart Van Assche
2018-11-30 17:08     ` Jens Axboe
2018-11-30 17:24       ` Bart Van Assche [this message]
2018-11-30 16:56 ` [PATCH 02/27] aio: clear IOCB_HIPRI Jens Axboe
2018-11-30 17:13   ` Christoph Hellwig
2018-11-30 17:14     ` Jens Axboe
2018-12-04 14:46       ` Christoph Hellwig
2018-12-04 16:40         ` Jens Axboe
2018-11-30 16:56 ` [PATCH 03/27] fs: add an iopoll method to struct file_operations Jens Axboe
2018-11-30 16:56 ` [PATCH 04/27] block: wire up block device iopoll method Jens Axboe
2018-11-30 16:56 ` [PATCH 05/27] block: ensure that async polled IO is marked REQ_NOWAIT Jens Axboe
2018-11-30 17:12   ` Bart Van Assche
2018-11-30 17:17     ` Jens Axboe
2018-12-04 14:48       ` Christoph Hellwig
2018-12-04 18:13         ` Jens Axboe
2018-11-30 16:56 ` [PATCH 06/27] iomap: wire up the iopoll method Jens Axboe
2018-11-30 16:56 ` [PATCH 07/27] iomap: ensure that async polled IO is marked REQ_NOWAIT Jens Axboe
2018-11-30 16:56 ` [PATCH 08/27] aio: use assigned completion handler Jens Axboe
2018-11-30 16:56 ` [PATCH 09/27] aio: separate out ring reservation from req allocation Jens Axboe
2018-11-30 16:56 ` [PATCH 10/27] aio: don't zero entire aio_kiocb aio_get_req() Jens Axboe
2018-12-04 14:49   ` Christoph Hellwig
2018-12-04 15:27     ` Jens Axboe
2018-11-30 16:56 ` [PATCH 11/27] aio: only use blk plugs for > 2 depth submissions Jens Axboe
2018-12-04 14:50   ` Christoph Hellwig
2018-11-30 16:56 ` [PATCH 12/27] aio: use iocb_put() instead of open coding it Jens Axboe
2018-12-04 14:50   ` Christoph Hellwig
2018-11-30 16:56 ` [PATCH 13/27] aio: split out iocb copy from io_submit_one() Jens Axboe
2018-11-30 16:56 ` [PATCH 14/27] aio: abstract out io_event filler helper Jens Axboe
2018-11-30 16:56 ` [PATCH 15/27] aio: add io_setup2() system call Jens Axboe
2018-11-30 16:56 ` [PATCH 16/27] aio: add support for having user mapped iocbs Jens Axboe
2018-11-30 16:56 ` [PATCH 17/27] aio: support for IO polling Jens Axboe
2018-11-30 16:56 ` [PATCH 18/27] aio: add submission side request cache Jens Axboe
2018-11-30 16:56 ` [PATCH 19/27] fs: add fget_many() and fput_many() Jens Axboe
2018-11-30 16:56 ` [PATCH 20/27] aio: use fget/fput_many() for file references Jens Axboe
2018-11-30 16:56 ` [PATCH 21/27] aio: split iocb init from allocation Jens Axboe
2018-11-30 16:56 ` [PATCH 22/27] aio: batch aio_kiocb allocation Jens Axboe
2018-11-30 16:56 ` [PATCH 23/27] block: add BIO_HOLD_PAGES flag Jens Axboe
2018-11-30 16:56 ` [PATCH 24/27] block: implement bio helper to add iter kvec pages to bio Jens Axboe
2018-11-30 19:21   ` Al Viro
2018-11-30 20:15     ` Jens Axboe
2018-11-30 20:32       ` Jens Axboe
2018-11-30 21:11         ` Al Viro
2018-11-30 21:16           ` Jens Axboe
2018-11-30 21:25             ` Al Viro
2018-11-30 21:34               ` Jens Axboe
2018-11-30 22:06                 ` Jens Axboe
2018-12-04 14:55     ` Christoph Hellwig
2018-12-04 15:25       ` Jens Axboe
2018-11-30 16:56 ` [PATCH 25/27] fs: add support for mapping an ITER_KVEC for O_DIRECT Jens Axboe
2018-11-30 16:56 ` [PATCH 26/27] iov_iter: add import_kvec() Jens Axboe
2018-11-30 19:17   ` Al Viro
2018-11-30 20:15     ` Jens Axboe
2018-11-30 16:56 ` [PATCH 27/27] aio: add support for pre-mapped user IO buffers Jens Axboe
2018-11-30 21:44   ` Jeff Moyer
2018-11-30 21:57     ` Jens Axboe
2018-11-30 22:04       ` Jeff Moyer
2018-11-30 22:11         ` Jens Axboe

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