tree 1ccfe9997a504d556e368553c26661d0ce543f82
parent a5b9e2c1063046421ce01dcf5ddd7ec12567f3e1
author Andi Kleen <andi@firstfloor.org> 1263603677 -0800
committer Linus Torvalds <torvalds@linux-foundation.org> 1263672938 -0800

kfifo: add kfifo_initialized

Simple inline that checks if kfifo_init() has been executed on a fifo.

This is useful for walking all per CPU fifos, when some of them might not
have been brought up yet.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Stefani Seibold <stefani@seibold.net>
Cc: Roland Dreier <rdreier@cisco.com>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Andy Walls <awalls@radix.net>
Cc: Vikram Dhillon <dhillonv10@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>