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From: Jason Gunthorpe <jgg@mellanox.com>
To: Ajay Kaher <akaher@vmware.com>
Cc: "aarcange@redhat.com" <aarcange@redhat.com>,
	"jannh@google.com" <jannh@google.com>,
	"oleg@redhat.com" <oleg@redhat.com>,
	"peterx@redhat.com" <peterx@redhat.com>,
	"rppt@linux.ibm.com" <rppt@linux.ibm.com>,
	"mhocko@suse.com" <mhocko@suse.com>,
	"jglisse@redhat.com" <jglisse@redhat.com>,
	"akpm@linux-foundation.org" <akpm@linux-foundation.org>,
	"mike.kravetz@oracle.com" <mike.kravetz@oracle.com>,
	"viro@zeniv.linux.org.uk" <viro@zeniv.linux.org.uk>,
	"riandrews@android.com" <riandrews@android.com>,
	"arve@android.com" <arve@android.com>,
	Yishai Hadas <yishaih@mellanox.com>,
	"dledford@redhat.com" <dledford@redhat.com>,
	"sean.hefty@intel.com" <sean.hefty@intel.com>,
	"hal.rosenstock@gmail.com" <hal.rosenstock@gmail.com>,
	Matan Barak <matanb@mellanox.com>,
	Leon
Subject: Re: [PATCH v4 2/3][v4.9.y] coredump: fix race condition between mmget_not_zero()/get_task_mm() and core dumping
Date: Mon, 24 Jun 2019 13:12:30 +0000	[thread overview]
Message-ID: <20190624131226.GA7418@mellanox.com> (raw)
In-Reply-To: <1561410186-3919-2-git-send-email-akaher@vmware.com>

On Tue, Jun 25, 2019 at 02:33:04AM +0530, Ajay Kaher wrote:
> This patch is the extension of following upstream commit to fix
> the race condition between get_task_mm() and core dumping
> for IB->mlx4 and IB->mlx5 drivers:
> 
> commit 04f5866e41fb ("coredump: fix race condition between
> mmget_not_zero()/get_task_mm() and core dumping")'
> 
> Thanks to Jason for pointing this.
> 
> Signed-off-by: Ajay Kaher <akaher@vmware.com>
> ---
>  drivers/infiniband/hw/mlx4/main.c | 4 +++-
>  drivers/infiniband/hw/mlx5/main.c | 3 +++
>  2 files changed, 6 insertions(+), 1 deletion(-)

Looks OK

Reviewed-by: Jason Gunthorpe <jgg@mellanox.com>

Thanks
Jason

WARNING: multiple messages have this Message-ID (diff)
From: Jason Gunthorpe <jgg@mellanox.com>
To: Ajay Kaher <akaher@vmware.com>
Cc: "aarcange@redhat.com" <aarcange@redhat.com>,
	"jannh@google.com" <jannh@google.com>,
	"oleg@redhat.com" <oleg@redhat.com>,
	"peterx@redhat.com" <peterx@redhat.com>,
	"rppt@linux.ibm.com" <rppt@linux.ibm.com>,
	"mhocko@suse.com" <mhocko@suse.com>,
	"jglisse@redhat.com" <jglisse@redhat.com>,
	"akpm@linux-foundation.org" <akpm@linux-foundation.org>,
	"mike.kravetz@oracle.com" <mike.kravetz@oracle.com>,
	"viro@zeniv.linux.org.uk" <viro@zeniv.linux.org.uk>,
	"riandrews@android.com" <riandrews@android.com>,
	"arve@android.com" <arve@android.com>,
	Yishai Hadas <yishaih@mellanox.com>,
	"dledford@redhat.com" <dledford@redhat.com>,
	"sean.hefty@intel.com" <sean.hefty@intel.com>,
	"hal.rosenstock@gmail.com" <hal.rosenstock@gmail.com>,
	Matan Barak <matanb@mellanox.com>,
	Leon Romanovsky <leonro@mellanox.com>,
	"linux-fsdevel@vger.kernel.org" <linux-fsdevel@vger.kernel.org>,
	"linux-mm@kvack.org" <linux-mm@kvack.org>,
	"devel@driverdev.osuosl.org" <devel@driverdev.osuosl.org>,
	"linux-rdma@vger.kernel.org" <linux-rdma@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"stable@vger.kernel.org" <stable@vger.kernel.org>,
	"srivatsab@vmware.com" <srivatsab@vmware.com>,
	"amakhalov@vmware.com" <amakhalov@vmware.com>
Subject: Re: [PATCH v4 2/3][v4.9.y] coredump: fix race condition between mmget_not_zero()/get_task_mm() and core dumping
Date: Mon, 24 Jun 2019 13:12:30 +0000	[thread overview]
Message-ID: <20190624131226.GA7418@mellanox.com> (raw)
In-Reply-To: <1561410186-3919-2-git-send-email-akaher@vmware.com>

On Tue, Jun 25, 2019 at 02:33:04AM +0530, Ajay Kaher wrote:
> This patch is the extension of following upstream commit to fix
> the race condition between get_task_mm() and core dumping
> for IB->mlx4 and IB->mlx5 drivers:
> 
> commit 04f5866e41fb ("coredump: fix race condition between
> mmget_not_zero()/get_task_mm() and core dumping")'
> 
> Thanks to Jason for pointing this.
> 
> Signed-off-by: Ajay Kaher <akaher@vmware.com>
> ---
>  drivers/infiniband/hw/mlx4/main.c | 4 +++-
>  drivers/infiniband/hw/mlx5/main.c | 3 +++
>  2 files changed, 6 insertions(+), 1 deletion(-)

Looks OK

Reviewed-by: Jason Gunthorpe <jgg@mellanox.com>

Thanks
Jason

  reply	other threads:[~2019-06-24 13:12 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-06-24 21:03 [PATCH v4 1/3] [v4.9.y] coredump: fix race condition between mmget_not_zero()/get_task_mm() and core dumping Ajay Kaher
2019-06-24 21:03 ` Ajay Kaher
2019-06-24 21:03 ` [PATCH v4 2/3][v4.9.y] " Ajay Kaher
2019-06-24 21:03   ` Ajay Kaher
2019-06-24 13:12   ` Jason Gunthorpe [this message]
2019-06-24 13:12     ` Jason Gunthorpe
2019-06-24 21:03 ` [PATCH v4 3/3] [v4.9.y] " Ajay Kaher
2019-06-24 21:03   ` Ajay Kaher
2019-06-24 21:03 ` [PATCH v4 0/3] " Ajay Kaher
2019-06-24 21:03   ` Ajay Kaher
2019-06-24 20:21   ` Sasha Levin
2019-06-24 20:21     ` Sasha Levin
2019-06-25  6:10     ` Ajay Kaher
2019-06-25  6:10       ` Ajay Kaher

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