[PATCH 06/14] sysfs: Rewrite sysfs_get_dentry
htejun at gmail.com
Wed Aug 1 03:02:05 PDT 2007
Eric W. Biederman wrote:
> I will look a little more and see. But right now it looks like the
> real problem with locking is that we use sysfs_mutex to lock the
> sysfs_dirent s_children list.
> Instead it really looks like we should use i_mutex from the appropriate
> inode. Or is there a real performance problem with forcing the directory
> inodes in core when we modify the directories?
I don't think there is any performance problem. Problems with using
* It was messy. I don't remember all the details now but IIRC symlink
walk code was pretty complex.
* And more importantly, inodes are reclaimable and might or might not be
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