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From: Josef Bacik <josef@toxicpanda.com>
To: Christoph Hellwig <hch@lst.de>
Cc: Johannes Thumshirn <johannes.thumshirn@wdc.com>,
	David Sterba <dsterba@suse.com>,
	"linux-btrfs @ vger . kernel . org" <linux-btrfs@vger.kernel.org>,
	Filipe Manana <fdmanana@gmail.com>,
	Linux FS Devel <linux-fsdevel@vger.kernel.org>
Subject: Re: [RFC PATCH] btrfs: don't call btrfs_sync_file from iomap context
Date: Thu, 3 Sep 2020 12:46:58 -0400	[thread overview]
Message-ID: <180234c3-d05c-1183-f1a6-b9b83c0d1536@toxicpanda.com> (raw)
In-Reply-To: <20200903163236.GA26043@lst.de>

On 9/3/20 12:32 PM, Christoph Hellwig wrote:
> We could trivially do something like this to allow the file system
> to call iomap_dio_complete without i_rwsem:
> 

This is sort of how I envisioned it worked, which is why I was surprised when it 
bit us.  This would be the cleanest stop-gap right now, but as it stands I've 
already sent a patch to work around the problem in btrfs for now, and we plan to 
take up the locking rework next go around.  Thanks,

Josef

  reply	other threads:[~2020-09-03 16:47 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20200901130644.12655-1-johannes.thumshirn@wdc.com>
2020-09-01 15:11 ` [RFC PATCH] btrfs: don't call btrfs_sync_file from iomap context Josef Bacik
2020-09-01 17:45   ` Darrick J. Wong
2020-09-01 17:55     ` Josef Bacik
2020-09-01 21:46   ` Dave Chinner
2020-09-01 22:19     ` Josef Bacik
2020-09-01 23:58       ` Dave Chinner
2020-09-02  0:22         ` Josef Bacik
2020-09-02  7:12           ` Johannes Thumshirn
2020-09-02 11:10             ` Josef Bacik
2020-09-02 16:29               ` Darrick J. Wong
2020-09-02 16:47                 ` Josef Bacik
2020-09-02 11:44         ` Matthew Wilcox
2020-09-02 12:20           ` Dave Chinner
2020-09-02 12:42             ` Josef Bacik
2020-09-03  2:28               ` Dave Chinner
2020-09-03  9:49                 ` Filipe Manana
2020-09-03 16:32   ` Christoph Hellwig
2020-09-03 16:46     ` Josef Bacik [this message]
2020-09-07  0:04     ` Dave Chinner
2020-09-15 21:48       ` Goldwyn Rodrigues
2020-09-17  3:09         ` Dave Chinner
2020-09-17  5:52           ` Christoph Hellwig
2020-09-17  6:29             ` Dave Chinner
2020-09-17  6:42               ` Christoph Hellwig

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