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From: David Sterba <dsterba@suse.cz>
To: Liu Bo <bo.liu@linux.alibaba.com>
Cc: linux-btrfs@vger.kernel.org
Subject: Re: [PATCH 0/5] rb_first to rb_first_cached conversion
Date: Thu, 20 Sep 2018 18:49:59 +0200	[thread overview]
Message-ID: <20180920164958.GA5847@twin.jikos.cz> (raw)
In-Reply-To: <1534967513-117382-1-git-send-email-bo.liu@linux.alibaba.com>

On Thu, Aug 23, 2018 at 03:51:48AM +0800, Liu Bo wrote:
> Several structs in btrfs are using rb_first() in a while loop, it'd be
> more efficient to do this with rb_first_cached() which has the O(1)
> complexity.
> 
> This patch set updates five structs which may have a large rb tree in
> practice
> 
> Liu Bo (5):
>   Btrfs: href_root: use rb_first_cached
>   Btrfs: href->ref_tree: use rb_first_cached
>   Btrfs: delayed_items: use rb_first_cached
>   Btrfs: extent_map: use rb_first_cached
>   Btrfs: preftree: use rb_first_cached

For the record, patches have been merged to misc-next. I've changed the
subject titles to

Btrfs: delayed-refs: use rb_first_cached for href_root
Btrfs: delayed-refs: use rb_first_cached for ref_tree
Btrfs: delayed-inode: use rb_first_cached for ins_root and del_root
Btrfs: extent_map: use rb_first_cached
Btrfs: preftree: use rb_first_cached

added Holger's tested-by and my reviewed-by.

  parent reply	other threads:[~2018-09-20 22:34 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-08-22 19:51 [PATCH 0/5] rb_first to rb_first_cached conversion Liu Bo
2018-08-22 19:51 ` [PATCH 1/5] Btrfs: href_root: use rb_first_cached Liu Bo
2018-08-22 19:51 ` [PATCH 2/5] Btrfs: href->ref_tree: " Liu Bo
2018-08-22 19:51 ` [PATCH 3/5] Btrfs: delayed_items: " Liu Bo
2018-08-22 19:51 ` [PATCH 4/5] Btrfs: extent_map: " Liu Bo
2018-08-22 19:51 ` [PATCH 5/5] Btrfs: preftree: " Liu Bo
2018-08-23  0:27 ` [PATCH 0/5] rb_first to rb_first_cached conversion Qu Wenruo
2018-08-23 10:21 ` Holger Hoffstätte
2018-08-23 11:26 ` Nikolay Borisov
2018-09-11 15:34 ` David Sterba
2018-09-11 18:31   ` Liu Bo
2018-09-14 15:11     ` David Sterba
2018-09-14 19:14       ` Liu Bo
2018-09-20 15:56         ` David Sterba
2018-09-20 16:49 ` David Sterba [this message]
2018-09-20 17:40   ` Liu Bo

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