linux-kernel - Re: [f2fs-dev] [PATCH 3/3] f2fs: remove entire rb

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Message-ID: <a58bbd47-6390-91b5-b00c-0399362c95c7@kernel.org>
Date:   Thu, 23 Mar 2023 22:32:27 +0800
From:   Chao Yu <chao@...nel.org>
To:     Jaegeuk Kim <jaegeuk@...nel.org>, linux-kernel@...r.kernel.org,
        linux-f2fs-devel@...ts.sourceforge.net
Cc:     stable@...r.kernel.org
Subject: Re: [f2fs-dev] [PATCH 3/3] f2fs: remove entire rb_entry sharing

On 2023/3/14 4:12, Jaegeuk Kim wrote:
> This is a last part to remove the memory sharing for rb_tree in extent_cache.
> 
> This should also fix arm32 memory alignment issue.
> 
> [struct extent_node]               [struct rb_entry]
> [0] struct rb_node rb_node;        [0] struct rb_node rb_node;
>    union {                              union {
>      struct {                             struct {
> [16]  unsigned int fofs;           [12]    unsigned int ofs;
>        unsigned int len;                    unsigned int len;
>                                           };
>                                           unsigned long long key;
>                                         } __packed;
> 
> Cc: <stable@...r.kernel.org>
> Fixes: 13054c548a1c ("f2fs: introduce infra macro and data structure of rb-tree extent cache")
> Signed-off-by: Jaegeuk Kim <jaegeuk@...nel.org>

Reviewed-by: Chao Yu <chao@...nel.org>

Thanks,