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From: Chao Yu <chao@kernel.org>
To: Eric Biggers <ebiggers@kernel.org>
Cc: Jaegeuk Kim <jaegeuk@kernel.org>,
	linux-kernel@vger.kernel.org,
	linux-f2fs-devel@lists.sourceforge.net
Subject: Re: [f2fs-dev] [PATCH 5/6] f2fs: implement iomap operations
Date: Thu, 2 Dec 2021 22:04:11 +0800	[thread overview]
Message-ID: <1ba0f002-42c7-b085-0c54-6071664ba79b@kernel.org> (raw)
In-Reply-To: <YahIf3UlhuxJT1O4@sol.localdomain>

On 2021/12/2 12:15, Eric Biggers wrote:
> On Thu, Dec 02, 2021 at 11:10:41AM +0800, Chao Yu wrote:
>> Why not relocating this check before f2fs_map_blocks()?

Wait, it supports DIO in multi-device image after commit 	71f2c8206202 
("f2fs: multidevice: support direct IO"), how about
checking with f2fs_allow_multi_device_dio()?

Thanks,

>>
>> Thanks,
>>
>>> +		iomap->bdev = inode->i_sb->s_bdev;
> 
> Are you talking about the check for !f2fs_is_multi_device()?  It could go in
> either location, but I think it makes the most sense to have it right before the
> line that uses 'inode->i_sb->s_bdev', since that is the place which makes the
> assumption that the filesystem has only one block device.
> 
> - Eric
> 


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  reply	other threads:[~2021-12-02 14:04 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-11-16 21:45 [f2fs-dev] [PATCH 1/6] f2fs: rework write preallocations Jaegeuk Kim
2021-11-16 21:45 ` [f2fs-dev] [PATCH 2/6] f2fs: do not expose unwritten blocks to user by DIO Jaegeuk Kim
2021-11-17 15:16   ` Chao Yu
2021-11-17 19:32     ` Jaegeuk Kim
2021-12-02  2:39   ` Chao Yu
2021-12-02 18:13     ` Jaegeuk Kim
2021-12-03  6:43       ` Chao Yu
2021-12-03 22:53         ` Jaegeuk Kim
2021-12-04 19:01     ` [f2fs-dev] [PATCH 2/6 v2] " Jaegeuk Kim
2021-11-16 21:45 ` [f2fs-dev] [PATCH 3/6] f2fs: reduce indentation in f2fs_file_write_iter() Jaegeuk Kim
2021-12-02  2:58   ` Chao Yu
2021-11-16 21:45 ` [f2fs-dev] [PATCH 4/6] f2fs: fix the f2fs_file_write_iter tracepoint Jaegeuk Kim
2021-12-02  2:59   ` Chao Yu
2021-11-16 21:45 ` [f2fs-dev] [PATCH 5/6] f2fs: implement iomap operations Jaegeuk Kim
2021-12-02  3:10   ` Chao Yu
2021-12-02  4:15     ` Eric Biggers
2021-12-02 14:04       ` Chao Yu [this message]
2021-12-02 18:25         ` Eric Biggers
2021-12-02 18:57           ` Jaegeuk Kim
2021-12-02 19:00             ` Jaegeuk Kim
2021-12-02 20:57               ` Eric Biggers
2021-12-02 21:19                 ` Jaegeuk Kim
2021-12-02 21:28                   ` Jaegeuk Kim
2021-12-03  6:51                     ` Chao Yu
2021-12-30  6:43                     ` Chao Yu
2022-01-04 21:15                       ` Jaegeuk Kim
2021-11-16 21:45 ` [f2fs-dev] [PATCH 6/6] f2fs: use iomap for direct I/O Jaegeuk Kim
2021-12-10 23:58   ` Jaegeuk Kim
2021-11-17 13:31 ` [f2fs-dev] [PATCH 1/6] f2fs: rework write preallocations Chao Yu
2021-11-17 19:27   ` Jaegeuk Kim
2021-11-18  6:47     ` Chao Yu
  -- strict thread matches above, loose matches on Subject: below --
2022-01-04 21:24 Jaegeuk Kim
2022-01-04 21:24 ` [f2fs-dev] [PATCH 5/6] f2fs: implement iomap operations Jaegeuk Kim
2022-01-05 13:20   ` Chao Yu
2022-01-05 18:25     ` Jaegeuk Kim

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