** Description changed:

  [SRU Justification]
  
  [Impact]
- Some NVMe operations time out too quickly. The module parameters allow the 
timeouts to be extended, but only up to 255s, as the counters are bytes. 
+ Some NVMe operations time out too quickly. The module parameters allow the 
timeouts to be extended, but only up to 255s, as the counters are bytes.
  
  [Fix]
  The underlying parameters are unsigned ints, so make the module parameters 
unsigned ints too, by picking patch 
http://lists.infradead.org/pipermail/linux-nvme/2017-September/012701.html
  
+ (Trusty specific) This also requires picking the patch that converts
+ the constant into a parameter, which is a clean cherry-pick.
+ 
  [Regression Potential]
- Very limited: only types of module parameters are changing, the patch is 
easily reviewable.
+ (X/Z/A) Very limited: only types of module parameters are changing, the patch 
is easily reviewable.
+ 
+ (Trusty specific) Limited: a module parameter is added and its type is
+ changed. The patches are easily reviewable.
+ 
+ [Testing]
+ (Trusty only) Boot tested on a c5.large instance on AWS which uses
+ NVMe to boot. Verified that the system still boots with the patches,
+ and that a timeout of 123456s is permitted.

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https://bugs.launchpad.net/bugs/1729119

Title:
  NVMe timeout is too short

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