printk: Hide console waiter logic into helpers

The commit ("printk: Add console owner and waiter logic to load balance
console writes") made vprintk_emit() and console_unlock() even more
complicated.

This patch extracts the new code into 3 helper functions. They should
help to keep it rather self-contained. It will be easier to use and
maintain.

This patch just shuffles the existing code. It does not change
the functionality.

Link: http://lkml.kernel.org/r/[email protected]
Cc: [email protected]
Cc: [email protected]
Cc: Cong Wang <[email protected]>
Cc: Dave Hansen <[email protected]>
Cc: Johannes Weiner <[email protected]>
Cc: Mel Gorman <[email protected]>
Cc: Michal Hocko <[email protected]>
Cc: Vlastimil Babka <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Jan Kara <[email protected]>
Cc: Mathieu Desnoyers <[email protected]>
Cc: Tetsuo Handa <[email protected]>
Cc: [email protected]
Cc: Byungchul Park <[email protected]>
Cc: Tejun Heo <[email protected]>
Cc: Pavel Machek <[email protected]>
Cc: [email protected]
Reviewed-by: Steven Rostedt (VMware) <[email protected]>
Acked-by: Sergey Senozhatsky <[email protected]>
Signed-off-by: Petr Mladek <[email protected]>

0 files changed, 0 insertions, 0 deletions