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From: Christoph Hellwig <hch@lst.de>
To: Naohiro Aota <Naohiro.Aota@wdc.com>
Cc: Christoph Hellwig <hch@lst.de>, Boris Burkov <boris@bur.io>,
	Chris Mason <clm@fb.com>, Josef Bacik <josef@toxicpanda.com>,
	David Sterba <dsterba@suse.com>,
	Johannes Thumshirn <Johannes.Thumshirn@wdc.com>,
	"linux-btrfs@vger.kernel.org" <linux-btrfs@vger.kernel.org>,
	Filipe Manana <fdmanana@suse.com>
Subject: Re: [PATCH 01/11] btrfs: add function to create and return an ordered extent
Date: Sat, 25 Mar 2023 09:22:39 +0100	[thread overview]
Message-ID: <20230325082238.GA7598@lst.de> (raw)
In-Reply-To: <20230324054717.e3we3azhj2ava5qq@naota-xeon>

On Fri, Mar 24, 2023 at 05:47:18AM +0000, Naohiro Aota wrote:
> I'm sorry to write a comment on this late, but isn't the function name
> confusing?  As I suggested a function only to allocate and initialize a
> btrfs_ordered_extent in the previous mail [1], I first thought this
> function is something like that.
> 
> [1] https://lore.kernel.org/linux-btrfs/20230323083608.m2ut2whbk2smjjpu@naota-xeon/
> 
> But, both btrfs_alloc_ordered_extent() and btrfs_add_ordered_extent() "add
> an ordered extent to the per-inode tree." The difference is that
> btrfs_alloc_ordered_extent() returns the created ordered extent to the
> caller taking a reference for them...
> 
> However, I can't think of a different name, so it might be OK...

I can't really think of a better name either. 

That being said, splitting out the accounting and having a version
that doesn't do it would be really useful for the split case.
And in the very long run I hope I can kill off the ordered_extent
tree entirely, but that's just futurism for now :)

  reply	other threads:[~2023-03-25  8:22 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-03-24  2:31 btrfs: fix corruption caused by partial dio writes v6 Christoph Hellwig
2023-03-24  2:31 ` [PATCH 01/11] btrfs: add function to create and return an ordered extent Christoph Hellwig
2023-03-24  5:47   ` Naohiro Aota
2023-03-25  8:22     ` Christoph Hellwig [this message]
2023-03-24  2:31 ` [PATCH 02/11] btrfs: pass flags as unsigned long to btrfs_add_ordered_extent Christoph Hellwig
2023-03-24  4:53   ` Naohiro Aota
2023-03-24  2:31 ` [PATCH 03/11] btrfs: stash ordered extent in dio_data during iomap dio Christoph Hellwig
2023-03-24  7:41   ` Naohiro Aota
2023-03-24  2:32 ` [PATCH 04/11] btrfs: move ordered_extent internal sanity checks into btrfs_split_ordered_extent Christoph Hellwig
2023-03-24  2:32 ` [PATCH 05/11] btrfs: simplify btrfs_extract_ordered_extent Christoph Hellwig
2023-03-24  6:07   ` Naohiro Aota
2023-03-25  8:34     ` Christoph Hellwig
2023-03-24  2:32 ` [PATCH 06/11] btrfs: simplify btrfs_split_ordered_extent Christoph Hellwig
2023-03-24  7:52   ` Naohiro Aota
2023-03-25  8:37     ` Christoph Hellwig
2023-03-24  2:32 ` [PATCH 07/11] btrfs: fold btrfs_clone_ordered_extent into btrfs_split_ordered_extent Christoph Hellwig
2023-03-24  2:32 ` [PATCH 08/11] btrfs: simplify split_zoned_em Christoph Hellwig
2023-03-24  2:32 ` [PATCH 09/11] btrfs: pass an ordered_extent to btrfs_extract_ordered_extent Christoph Hellwig
2023-03-24  2:32 ` [PATCH 10/11] btrfs: don't split nocow extent_maps in btrfs_extract_ordered_extent Christoph Hellwig
2023-03-24  2:32 ` [PATCH 11/11] btrfs: split partial dio bios before submit Christoph Hellwig
2023-03-24 13:10 ` btrfs: fix corruption caused by partial dio writes v6 Johannes Thumshirn
2023-03-24 16:36   ` Johannes Thumshirn
2023-03-28  5:19 btrfs: fix corruption caused by partial dio writes v7 Christoph Hellwig
2023-03-28  5:19 ` [PATCH 01/11] btrfs: add function to create and return an ordered extent Christoph Hellwig

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