Re: [PATCH] usb: gadget: f_fs: Use stream_open() for endpoint files

[Pavan Kondeti]

Hi Greg,

On Thu, Nov 11, 2021 at 12:38:26PM +0100, Greg Kroah-Hartman wrote:
> On Thu, Nov 11, 2021 at 04:41:55PM +0530, Pavankumar Kondeti wrote:
> > Function fs endpoint files does not have the notion of file position.
> > So switch to stream like functionality. This allows concurrent threads
> > to be blocked in the ffs read/write operations which use ffs_mutex_lock().
> > The ffs mutex lock deploys interruptible wait. Otherwise, threads are
> > blocking for the mutex lock in __fdget_pos(). For whatever reason, ff the
> > host does not send/receive data for longer time, hung task warnings
> > are observed.
> > 
> > Change-Id: I602fa56fb5ed4c8c46e19df68c3335c4b12cae81
> 
> Always run scripts/checkpatch.pl on your patches so you do not get
> grumpy maintainers asking you to run scripts/checkpatch.pl on them...
> 
Thanks for taking a look at the patch. My bad, I have applied the patch
from a recent android tree and carry forwarded this tag. I will fix it.

Thanks,
Pavan