Andrew Morton wrote:
> Actually, someone (eg distros) looking at Tejun's changelog would still be
> struggling to answer the question "do I need this". The one thing it
> claims to fix is "duplicate inode numbers". But why is that a problem?
> What are the user-visible consequences of not merging the patch? Unobvious.
The oops part is explained in #2. sysfs_dirent->s_dentry can go away
anytime and the original code accesses it without any synchronization,
so it can end up dereferencing NULL or access already freed memory.
And, yeah, this is another place where reclaim-related oops occurs.
--
tejun
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