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Date:   Wed, 11 Sep 2019 19:21:33 +0200
From:   David Sterba <dsterba@suse.cz>
To:     Goldwyn Rodrigues <rgoldwyn@suse.de>
Cc:     linux-fsdevel@vger.kernel.org, linux-ext4@vger.kernel.org,
        linux-btrfs@vger.kernel.org, hch@infradead.org, andres@anarazel.de,
        david@fromorbit.com, riteshh@linux.ibm.com,
        linux-f2fs-devel@lists.sourceforge.net,
        Goldwyn Rodrigues <rgoldwyn@suse.com>
Subject: Re: [PATCH 1/3] btrfs: fix inode rwsem regression
Message-ID: <20190911172133.GJ2850@twin.jikos.cz>
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        linux-f2fs-devel@lists.sourceforge.net,
        Goldwyn Rodrigues <rgoldwyn@suse.com>
References: <20190911164517.16130-1-rgoldwyn@suse.de>
 <20190911164517.16130-2-rgoldwyn@suse.de>
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On Wed, Sep 11, 2019 at 11:45:15AM -0500, Goldwyn Rodrigues wrote:
> From: Goldwyn Rodrigues <rgoldwyn@suse.com>
> 
> 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: edf064e7c6fe ("btrfs: nowait aio support")
> Signed-off-by: Goldwyn Rodrigues <rgoldwyn@suse.com>

The subject seems to be a bit confusing so I'll update it, otherwise
patch added to devel queue, thanks.