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From: Matthew Bobrowski <mbobrowski@mbobrowski.org>
To: Ritesh Harjani <riteshh@linux.ibm.com>
Cc: Goldwyn Rodrigues <rgoldwyn@suse.de>,
	david@fromorbit.com, linux-f2fs-devel@lists.sourceforge.net,
	hch@infradead.org, Goldwyn Rodrigues <rgoldwyn@suse.com>,
	aneesh.kumar@linux.ibm.com, linux-fsdevel@vger.kernel.org,
	linux-ext4@vger.kernel.org, andres@anarazel.de,
	linux-btrfs@vger.kernel.org
Subject: Re: [f2fs-dev] [PATCH 2/3] ext4: fix inode rwsem regression
Date: Thu, 12 Sep 2019 19:26:14 +1000
Message-ID: <20190912092614.GB9747@bobrowski> (raw)
In-Reply-To: <20190912085236.7C51642042@d06av24.portsmouth.uk.ibm.com>

On Thu, Sep 12, 2019 at 02:22:35PM +0530, Ritesh Harjani wrote:
> cc'd Matthew as well.
> 
> > This is similar to 942491c9e6d6 ("xfs: fix AIM7 regression")
> > Apparently our current rwsem code doesn't like doing the trylock, then
> > lock for real scheme.  So change our read/write methods to just do the
> > trylock for the RWF_NOWAIT case.
> > 
> > Fixes: 728fbc0e10b7 ("ext4: nowait aio support")
> > Signed-off-by: Goldwyn Rodrigues <rgoldwyn@suse.com>
> 
> This patch will conflict with recent iomap patch series.
> So if this is getting queued up before, so iomap patch series will
> need to rebase and factor these changes in the new APIs.

Noted. I've been keeping my eye on this thread, so I'm aware of this.

--<M>--


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Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20190911093926.pfkkx25mffzeuo32@alap3.anarazel.de>
2019-09-11 16:45 ` [f2fs-dev] Fix inode sem regression for nowait Goldwyn Rodrigues
2019-09-11 16:45   ` [f2fs-dev] [PATCH 1/3] btrfs: fix inode rwsem regression Goldwyn Rodrigues
2019-09-11 17:21     ` David Sterba
2019-09-11 16:45   ` [f2fs-dev] [PATCH 2/3] ext4: " Goldwyn Rodrigues
2019-09-12  8:52     ` Ritesh Harjani
2019-09-12  9:26       ` Matthew Bobrowski [this message]
2019-09-11 16:45   ` [f2fs-dev] [PATCH 3/3] f2fs: " Goldwyn Rodrigues
2019-09-12  6:17     ` Chao Yu
2019-09-13 19:46     ` Jaegeuk Kim
2019-09-16  1:16       ` Chao Yu

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