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From: David Sterba <dsterba@suse.cz>
To: Christoph Hellwig <hch@infradead.org>
Cc: Chris Mason <clm@fb.com>, Josef Bacik <josef@toxicpanda.com>,
	David Sterba <dsterba@suse.com>,
	linux-btrfs@vger.kernel.org
Subject: Re: [PATCH 1/4] btrfs: fix fast csum detection
Date: Tue, 4 Apr 2023 19:13:23 +0200	[thread overview]
Message-ID: <20230404171323.GD19619@suse.cz> (raw)
In-Reply-To: <ZCuwSBClLwjkPkzs@infradead.org>

On Mon, Apr 03, 2023 at 10:06:16PM -0700, Christoph Hellwig wrote:
> > > +	if (btrfs_csum_is_fast(csum_type))
> > > +		set_bit(BTRFS_FS_CSUM_IMPL_FAST, &fs_info->flags);
> > 
> > This ^^^
> > 
> > >  	fs_info->csum_size = btrfs_super_csum_size(disk_super);
> > >  
> > >  	ret = btrfs_init_csum_hash(fs_info, csum_type);
> > 
> > should be moved after the initialization btrfs_init_csum_hash so it
> > would also detect accelerated implementation of other hashes.
> 
> Sure.  Something like this incremental fix.  Do you want to fold it in
> or should I resend the series?

I ended up with the same diff when reviewing the patch so I can fold it,
no need to resend. I'll send a separate patch to add xxhash as a fast
implementation, with some numbers.

  reply	other threads:[~2023-04-04 17:13 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-03-29  0:13 don't offload CRCs generation to helpers if it is fast Christoph Hellwig
2023-03-29  0:13 ` [PATCH 1/4] btrfs: fix fast csum detection Christoph Hellwig
2023-04-03 18:35   ` David Sterba
2023-04-04  5:06     ` Christoph Hellwig
2023-04-04 17:13       ` David Sterba [this message]
2023-03-29  0:13 ` [PATCH 2/4] btrfs: remove the sync_writers field in struct btrfs_inode Christoph Hellwig
2023-04-05 13:50   ` David Sterba
2023-03-29  0:13 ` [PATCH 3/4] btrfs: never defer I/O submission for fast CRC implementations Christoph Hellwig
2023-03-29  0:13 ` [PATCH 4/4] btrfs: remove hipri_workers workqueue Christoph Hellwig
2023-03-30 15:42 ` don't offload CRCs generation to helpers if it is fast Chris Mason
2023-03-30 21:06   ` Christoph Hellwig
2023-03-31 17:31 ` David Sterba
2023-04-05 23:14 ` David Sterba
2023-04-06  5:23   ` Christoph Hellwig
2023-04-10 17:17     ` Christoph Hellwig
2023-04-11 19:09       ` David Sterba

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