[BUG] staging: android: ashmem: Deadlock during ashmem_shrink

[Robert Love]

On Tue, Apr 23, 2013 at 12:20 PM, Shankar Brahadeeswaran
<shankoo77 at gmail.com> wrote:

> I'm unable to think of a straight forward way to fix this. If you have
> any suggestions please provide the same.
> If we are unable to solve this too with minor mods, as suggested by
> Dan we have to re-look at the locking in this driver.

This doesn't look insurmountable. It isn't necessary AFAICT to hold
ashmem_mutex across shmem_file_setup.

Patch attached (untested).

           Robert
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