From: Qu Wenruo <quwenruo.btrfs@gmx.com>
To: damenly.su@gmail.com, linux-btrfs@vger.kernel.org
Cc: Su Yue <Damenly_Su@gmx.com>
Subject: Re: [PATCH 02/10] btrfs-progs: block_group: add rb tree related memebers
Date: Thu, 5 Dec 2019 15:22:41 +0800 [thread overview]
Message-ID: <eb8ada00-32b7-93ca-15e4-01d481656ba6@gmx.com> (raw)
In-Reply-To: <20191205042921.25316-3-Damenly_Su@gmx.com>
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On 2019/12/5 下午12:29, damenly.su@gmail.com wrote:
> From: Su Yue <Damenly_Su@gmx.com>
>
> To convert from existed extent_cache to plain rb_tree, add
> btrfs_block_group_cache::cache_node and btrfs_fs_info::block_group_
> cache_tree.
>
> Signed-off-by: Su Yue <Damenly_Su@gmx.com>
Reviewed-by: Qu Wenruo <wqu@suse.com>
Thanks,
Qu
> ---
> ctree.h | 21 ++++++++++++---------
> disk-io.c | 2 ++
> 2 files changed, 14 insertions(+), 9 deletions(-)
>
> diff --git a/ctree.h b/ctree.h
> index 3e50d0863bde..f3f5f52f2559 100644
> --- a/ctree.h
> +++ b/ctree.h
> @@ -1107,16 +1107,18 @@ struct btrfs_block_group_cache {
> int cached;
> int ro;
> /*
> - * If the free space extent count exceeds this number, convert the block
> - * group to bitmaps.
> - */
> - u32 bitmap_high_thresh;
> - /*
> - * If the free space extent count drops below this number, convert the
> - * block group back to extents.
> - */
> - u32 bitmap_low_thresh;
> + * If the free space extent count exceeds this number, convert the block
> + * group to bitmaps.
> + */
> + u32 bitmap_high_thresh;
> + /*
> + * If the free space extent count drops below this number, convert the
> + * block group back to extents.
> + */
> + u32 bitmap_low_thresh;
>
> + /* Block group cache stuff */
> + struct rb_node cache_node;
> };
>
> struct btrfs_device;
> @@ -1146,6 +1148,7 @@ struct btrfs_fs_info {
> struct extent_io_tree extent_ins;
> struct extent_io_tree *excluded_extents;
>
> + struct rb_root block_group_cache_tree;
> /* logical->physical extent mapping */
> struct btrfs_mapping_tree mapping_tree;
>
> diff --git a/disk-io.c b/disk-io.c
> index 659f8b93a7ca..b7ae72a99f59 100644
> --- a/disk-io.c
> +++ b/disk-io.c
> @@ -797,6 +797,8 @@ struct btrfs_fs_info *btrfs_new_fs_info(int writable, u64 sb_bytenr)
> extent_io_tree_init(&fs_info->block_group_cache);
> extent_io_tree_init(&fs_info->pinned_extents);
> extent_io_tree_init(&fs_info->extent_ins);
> +
> + fs_info->block_group_cache_tree = RB_ROOT;
> fs_info->excluded_extents = NULL;
>
> fs_info->fs_root_tree = RB_ROOT;
>
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next prev parent reply other threads:[~2019-12-05 7:22 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-05 4:29 [PATCH 00/10] unify origanization structure of block group cache damenly.su
2019-12-05 4:29 ` [PATCH 01/10] btrfs-progs: handle error if btrfs_write_one_block_group() failed damenly.su
2019-12-05 7:21 ` Qu Wenruo
2019-12-05 4:29 ` [PATCH 02/10] btrfs-progs: block_group: add rb tree related memebers damenly.su
2019-12-05 7:22 ` Qu Wenruo [this message]
2019-12-05 4:29 ` [PATCH 03/10] btrfs-progs: port block group cache tree insertion and lookup functions damenly.su
2019-12-05 7:29 ` Qu Wenruo
2019-12-05 8:32 ` Su Yue
2019-12-05 13:41 ` David Sterba
2019-12-05 4:29 ` [PATCH 04/10] btrfs-progs: reform the function block_group_cache_tree_search() damenly.su
2019-12-05 7:38 ` Qu Wenruo
2019-12-05 8:08 ` Su Yue
2019-12-05 4:29 ` [PATCH 05/10] btrfs-progs: adjust function btrfs_lookup_first_block_group_kernel damenly.su
2019-12-05 7:40 ` Qu Wenruo
2019-12-05 8:20 ` Su Yue
2019-12-05 4:29 ` [PATCH 06/10] btrfs-progs: abstract function btrfs_add_block_group_cache() damenly.su
2019-12-05 7:42 ` Qu Wenruo
2019-12-05 4:29 ` [PATCH 07/10] block-progs: block_group: add dirty_bgs list related memebers damenly.su
2019-12-05 7:43 ` Qu Wenruo
2019-12-05 4:29 ` [PATCH 08/10] btrfs-progs: pass @trans to functions touch dirty block groups damenly.su
2019-12-05 7:44 ` Qu Wenruo
2019-12-05 4:29 ` [PATCH 09/10] btrfs-progs: refrom block groups caches structure damenly.su
2019-12-05 7:51 ` Qu Wenruo
2019-12-05 8:09 ` Su Yue
2019-12-05 4:29 ` [PATCH 10/10] btrfs-progs: cleanups after block group cache reform damenly.su
2019-12-05 7:52 ` Qu Wenruo
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