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    SubjectRe: [PATCH 0/4] sysfs: Reduce the size of sysfs_dirent
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    Greg KH <gregkh@suse.de> writes:

    > On Tue, Jan 03, 2012 at 09:43:47PM -0800, Eric W. Biederman wrote:
    >> ebiederm@xmission.com (Eric W. Biederman) writes:
    >>
    >> > 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
    >> > unfortunate.
    >> >
    >> > 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.
    >>
    >> Greg did you see these patches for reducing the sysfs memory size
    >> regression in 3.2?
    >
    > Ok, due to the holidays, these ended up missing the 3.3 merge window,
    > I'll queue them up for 3.4.

    Thanks.

    Eric


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