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[GIT PULL] printk for 4.12

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  [GIT PULL] printk for 4.12 Petr Mladek <pmladek@suse.com> - 2017-05-02 16:00 +0200

#1634426 — [GIT PULL] printk for 4.12

Linus,

please pull the latest printk changes from

  git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk.git for-linus

==========

- There is a situation when early console is not deregistered
  because the preferred one matches a wrong entry. It caused
  messages to appear twice.

  This is 2nd attempt to fix it. The first one was wrong,
  see the commit c6c7d83b9c9e6a8b3e6 ('Revert "console: don't
  prefer first registered if DT specifies stdout-path"').

  The fix is coupled with some small code clean up. Well,
  the console registration code would deserve a big one.
  We need to think about it.


- Do not lose information about the preemtive context when
  the console semaphore is re-taken.

- Do not block CPU hotplug when someone else is already
  pushing messages to the console.

----------------------------------------------------------------

Aleksey Makarov (3):
      printk: fix name/type/scope of preferred_console var
      printk: rename selected_console -> preferred_console
      printk: fix double printing with earlycon

Petr Mladek (1):
      printk: Correctly handle preemption in console_unlock()

Sergey Senozhatsky (1):
      printk: use console_trylock() in console_cpu_notify()

 kernel/printk/printk.c | 81 ++++++++++++++++++++++++++++++++++----------------
 1 file changed, 56 insertions(+), 25 deletions(-)


Best Regards,
Petr Mladek

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