Re: [f2fs-dev] [PATCH 1/3] f2fs: factor out victim_entry usage from general rb_tree use

[Chao Yu]

On 2023/3/14 4:12, Jaegeuk Kim wrote:
> Let's reduce the complexity of mixed use of rb_tree in victim_entry from
> extent_cache and discard_cmd.
>
> This should fix arm32 memory alignment issue caused by shared rb_entry.
>
> [struct victim_entry]              [struct rb_entry]
> [0] struct rb_node rb_node;        [0] struct rb_node rb_node;
>                                         union {
>                                           struct {
>                                             unsigned int ofs;
>                                             unsigned int len;
>                                           };
> [16] unsigned long long mtime;     [12] unsigned long long key;
>                                         } __packed;
>
> Cc: <stable@xxxxxxxxxxxxxxx>
> Fixes: 093749e296e2 ("f2fs: support age threshold based garbage collection")
> Signed-off-by: Jaegeuk Kim <jaegeuk@xxxxxxxxxx>

Reviewed-by: Chao Yu <chao@xxxxxxxxxx>

Thanks,