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Subject[PATCH 0/4] sysfs: Reduce the size of sysfs_dirent

After throwing rb_trees at the problem sysfs_dirent increased in size by
6 pointers, or 48 bytes. Since the point of having struct
sysfs_dirent is to keep the size down increasing in size that much seems

The following patches attack this problem and if I have counted right
reduce the size of sysfs_dirent by 4 pointers on 64bit. Not quite
where we were but reducing sysfs_dirent by 32bytes to 104 bytes is
an improvement.


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