From: Doug Ledford <dledford-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
To: Matan Barak <matanb-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Jason Gunthorpe
<jgunthorpe-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>,
Somnath Kotur
<Somnath.Kotur-idTK6quXuVSLFuii7jzJGg@public.gmane.org>,
Haggai Eran <haggaie-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>,
Or Gerlitz <ogerlitz-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
Subject: Re: [PATCH for-next V1 3/3] IB/core: Fix possible deadlock in write_gid
Date: Fri, 14 Aug 2015 17:16:40 -0400 [thread overview]
Message-ID: <55CE5AB8.9010301@redhat.com> (raw)
In-Reply-To: <1438607342-11964-4-git-send-email-matanb-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
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On 08/03/2015 09:09 AM, Matan Barak wrote:
> Fixing the possible deadlock in write_gid:
> write_gid -> write_lock()
> <interrupt>
> find_gid -> read_lock_irqsave()
> ** DEAD LOCK **LOCK
>
> Fixing it by changing the write_lock to write_lock_irqsave.
>
> Squash-into: 'IB/core: Add RoCE GID table management'
> Signed-off-by: Matan Barak <matanb-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
Squashed as requested.
--
Doug Ledford <dledford-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
GPG KeyID: 0E572FDD
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prev parent reply other threads:[~2015-08-14 21:16 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-03 13:08 [PATCH for-next V1 0/3] RoCE GID management fixes Matan Barak
[not found] ` <1438607342-11964-1-git-send-email-matanb-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2015-08-03 13:09 ` [PATCH for-next V1 1/3] IB/core: Access to one past end of array in _gid_table_setup_one Matan Barak
[not found] ` <1438607342-11964-2-git-send-email-matanb-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2015-08-14 21:04 ` Doug Ledford
2015-08-03 13:09 ` [PATCH for-next V1 2/3] IB/core: RoCE GID management separate cleanup and release Matan Barak
[not found] ` <1438607342-11964-3-git-send-email-matanb-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2015-08-04 3:10 ` Jason Gunthorpe
[not found] ` <20150804031038.GA27627-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2015-08-04 12:09 ` Matan Barak
[not found] ` <CAAKD3BBESq61-UJJvqm=ni5vrtu8yuNJvC57mWwCpehQSd1k4A-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-08-04 16:46 ` Jason Gunthorpe
[not found] ` <20150804164650.GA3858-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2015-08-04 18:55 ` Matan Barak
[not found] ` <CAAKD3BDDKcyA0xitGpuMkKsr6=9onxFgdVXHE3n-zb=xjX4Uhg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-08-04 21:23 ` Jason Gunthorpe
[not found] ` <20150804212334.GB10934-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2015-08-14 21:49 ` Doug Ledford
2015-08-14 21:56 ` Doug Ledford
2015-08-03 13:09 ` [PATCH for-next V1 3/3] IB/core: Fix possible deadlock in write_gid Matan Barak
[not found] ` <1438607342-11964-4-git-send-email-matanb-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2015-08-14 21:16 ` Doug Ledford [this message]
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