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linux/fs/f2fs/segment.c
Jaegeuk Kim cba2856958 f2fs: factor out victim_entry usage from general rb_tree use 
[ Upstream commit 043d2d00b4 ]

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@vger.kernel.org>
Fixes: 093749e296 ("f2fs: support age threshold based garbage collection")
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-17 11:53:53 +02:00

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