linux-ext4 - Re: [PATCH] ext4: Do not block RWF_NOWAIT dio write on unallocated space

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Message-ID: <20200806050610.GG7657@mit.edu>
Date:   Thu, 6 Aug 2020 01:06:10 -0400
From:   tytso@....edu
To:     Jan Kara <jack@...e.cz>
Cc:     <linux-ext4@...r.kernel.org>
Subject: Re: [PATCH] ext4: Do not block RWF_NOWAIT dio write on unallocated
 space

On Wed, Jul 08, 2020 at 05:35:16PM +0200, Jan Kara wrote:
> Since commit 378f32bab371 ("ext4: introduce direct I/O write using iomap
> infrastructure") we don't properly bail out of RWF_NOWAIT direct IO
> write if underlying blocks are not allocated. Also
> ext4_dio_write_checks() does not honor RWF_NOWAIT when re-acquiring
> i_rwsem. Fix both issues.
> 
> Fixes: 378f32bab371 ("ext4: introduce direct I/O write using iomap infrastructure")
> Reported-by: Filipe Manana <fdmanana@...il.com>
> Signed-off-by: Jan Kara <jack@...e.cz>

Applied, thanks.

					- Ted