> o es1371_mmap used to use lock_kernel to do some synchronistation,
> this is superceeded by s->sem.
> o remap_page_range (used in es1371_mmap) needs the mm semaphore as
> stated by a comment and the code. I have found _NO_ driver in the
> tree so far that does this locking right...
I think they rely on the lock_kernel stuff - which Id prefer not to take out
to be honest. There is just a little too much vm related lock_kernel stuff
left to do that
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