Merge branch 'pstore' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux

* 'pstore' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux:
  pstore: make pstore write function return normal success/fail value
  pstore: change mutex locking to spin_locks
  pstore: defer inserting OOPS entries into pstore