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From: Dan Carpenter <dan.carpenter@oracle.com>
To: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>,
	Nick Desaulniers <ndesaulniers@google.com>,
	LKML <linux-kernel@vger.kernel.org>,
	Jason Wang <jasowang@redhat.com>,
	Alan Stern <stern@rowland.harvard.edu>,
	Andrea Parri <andrea.parri@amarulasolutions.com>,
	Will Deacon <will.deacon@arm.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Boqun Feng <boqun.feng@gmail.com>,
	Nicholas Piggin <npiggin@gmail.com>,
	David Howells <dhowells@redhat.com>,
	Jade Alglave <j.alglave@ucl.ac.uk>,
	Luc Maranget <luc.maranget@inria.fr>,
	"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
	Akira Yokosawa <akiyks@gmail.com>,
	Daniel Lustig <dlustig@nvidia.com>,
	linux-arch@vger.kernel.org,
	Network Development <netdev@vger.kernel.org>,
	virtualization@lists.linux-foundation.org, Eli F
Subject: Re: [PATCH RFC 1/4] include/linux/compiler*.h: fix OPTIMIZER_HIDE_VAR
Date: Thu, 10 Jan 2019 16:41:39 +0300	[thread overview]
Message-ID: <20190110134139.GE1743@kadam> (raw)
In-Reply-To: <20190109213543-mutt-send-email-mst@kernel.org>

On Wed, Jan 09, 2019 at 09:36:41PM -0500, Michael S. Tsirkin wrote:
> On Wed, Jan 09, 2019 at 11:35:52AM +0100, Miguel Ojeda wrote:
> > On Tue, Jan 8, 2019 at 6:44 PM Nick Desaulniers <ndesaulniers@google.com> wrote:
> > >
> > > Also for more context, see:
> > > commit 7829fb09a2b4 ("lib: make memzero_explicit more robust against
> > > dead store elimination")
> > 
> > By the way, shouldn't that barrier_data() be directly in compiler.h
> > too, since it is for both gcc & clang?
> > 
> > > Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
> > >
> > > + Miguel
> > > Miguel, would you mind taking this into your compiler-attributes tree?
> > 
> > Sure, at least we get quickly some linux-next time.
> 
> 
> BTW why linux-next? shouldn't this go into 5.0 and stable? It's a bugfix after all.
> 

It doesn't hurt to put things in linux-next for a week and then 5.0 and
-stable.  Not a lot of testing happens on linux-next, but some does.

regards,
dan carpenter

WARNING: multiple messages have this Message-ID (diff)
From: Dan Carpenter <dan.carpenter@oracle.com>
To: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>,
	Nick Desaulniers <ndesaulniers@google.com>,
	LKML <linux-kernel@vger.kernel.org>,
	Jason Wang <jasowang@redhat.com>,
	Alan Stern <stern@rowland.harvard.edu>,
	Andrea Parri <andrea.parri@amarulasolutions.com>,
	Will Deacon <will.deacon@arm.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Boqun Feng <boqun.feng@gmail.com>,
	Nicholas Piggin <npiggin@gmail.com>,
	David Howells <dhowells@redhat.com>,
	Jade Alglave <j.alglave@ucl.ac.uk>,
	Luc Maranget <luc.maranget@inria.fr>,
	"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
	Akira Yokosawa <akiyks@gmail.com>,
	Daniel Lustig <dlustig@nvidia.com>,
	linux-arch@vger.kernel.org,
	Network Development <netdev@vger.kernel.org>,
	virtualization@lists.linux-foundation.org,
	Eli Friedman <efriedma@codeaurora.org>,
	Joe Perches <joe@perches.com>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Luc Van Oostenryck <luc.vanoostenryck@gmail.com>,
	linux-sparse@vger.kernel.org,
	Eric Christopher <echristo@google.com>
Subject: Re: [PATCH RFC 1/4] include/linux/compiler*.h: fix OPTIMIZER_HIDE_VAR
Date: Thu, 10 Jan 2019 16:41:39 +0300	[thread overview]
Message-ID: <20190110134139.GE1743@kadam> (raw)
Message-ID: <20190110134139.oIsl9bw1rlhZ6chhgJQ-RkUp-vqdxKUyV4o5RtD3z6o@z> (raw)
In-Reply-To: <20190109213543-mutt-send-email-mst@kernel.org>

On Wed, Jan 09, 2019 at 09:36:41PM -0500, Michael S. Tsirkin wrote:
> On Wed, Jan 09, 2019 at 11:35:52AM +0100, Miguel Ojeda wrote:
> > On Tue, Jan 8, 2019 at 6:44 PM Nick Desaulniers <ndesaulniers@google.com> wrote:
> > >
> > > Also for more context, see:
> > > commit 7829fb09a2b4 ("lib: make memzero_explicit more robust against
> > > dead store elimination")
> > 
> > By the way, shouldn't that barrier_data() be directly in compiler.h
> > too, since it is for both gcc & clang?
> > 
> > > Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
> > >
> > > + Miguel
> > > Miguel, would you mind taking this into your compiler-attributes tree?
> > 
> > Sure, at least we get quickly some linux-next time.
> 
> 
> BTW why linux-next? shouldn't this go into 5.0 and stable? It's a bugfix after all.
> 

It doesn't hurt to put things in linux-next for a week and then 5.0 and
-stable.  Not a lot of testing happens on linux-next, but some does.

regards,
dan carpenter


  parent reply	other threads:[~2019-01-10 13:42 UTC|newest]

Thread overview: 37+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-01-02 20:57 [PATCH RFC 0/4] barriers using data dependency Michael S. Tsirkin
2019-01-02 20:57 ` [PATCH RFC 1/4] include/linux/compiler*.h: fix OPTIMIZER_HIDE_VAR Michael S. Tsirkin
2019-01-08 17:44   ` Nick Desaulniers
2019-01-08 18:50     ` Michael S. Tsirkin
2019-01-09 10:35     ` Miguel Ojeda
2019-01-09 10:35       ` Miguel Ojeda
2019-01-09 14:50       ` Michael S. Tsirkin
2019-01-09 14:50         ` Michael S. Tsirkin
2019-01-19 18:35         ` Miguel Ojeda
2019-01-20 14:43           ` Michael S. Tsirkin
2019-01-20 15:36             ` Miguel Ojeda
2019-01-10  2:36       ` Michael S. Tsirkin
2019-01-10  2:36         ` Michael S. Tsirkin
2019-01-10 13:41         ` Dan Carpenter [this message]
2019-01-10 13:41           ` Dan Carpenter
2019-01-10 14:08           ` Michael S. Tsirkin
2019-01-10 14:08             ` Michael S. Tsirkin
2019-01-02 20:57 ` [PATCH RFC 2/4] include/linux/compiler.h: allow memory operands Michael S. Tsirkin
2019-01-07 17:54   ` Will Deacon
2019-01-07 18:16     ` Michael S. Tsirkin
2019-01-02 20:57 ` [PATCH RFC 3/4] barriers: convert a control to a data dependency Michael S. Tsirkin
2019-01-02 21:00   ` Matthew Wilcox
2019-01-02 21:24     ` Michael S. Tsirkin
2019-01-07  3:58   ` Jason Wang
2019-01-07  4:23     ` Michael S. Tsirkin
2019-01-07  6:50       ` Jason Wang
2019-01-07  9:46       ` Peter Zijlstra
2019-01-07 13:36         ` Michael S. Tsirkin
2019-01-07 15:54           ` Peter Zijlstra
2019-01-07 16:22             ` Michael S. Tsirkin
2019-01-07 19:02           ` Paul E. McKenney
2019-01-07 19:13             ` Michael S. Tsirkin
2019-01-07 19:25               ` Paul E. McKenney
2019-01-02 20:58 ` [PATCH RFC 4/4] virtio: use dependent_ptr_mb Michael S. Tsirkin
2019-01-02 21:36 ` [PATCH RFC 0/4] barriers using data dependency Alan Stern
2019-01-02 23:04   ` Michael S. Tsirkin
2019-01-03 15:11     ` Alan Stern

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