kfifo_out_locked(9) suse man page | unix.com

KFIFO_OUT_LOCKED(9)						    FIFO Buffer 					       KFIFO_OUT_LOCKED(9)

NAME
       kfifo_out_locked - gets some data from the FIFO using a spinlock for locking

SYNOPSIS
       __must_check unsigned int kfifo_out_locked(struct kfifo * fifo, void * to, unsigned int n, spinlock_t * lock);

ARGUMENTS
       fifo
	   the fifo to be used.

       to
	   where the data must be copied.

       n
	   the size of the destination buffer.

       lock
	   pointer to the spinlock to use for locking.

DESCRIPTION
       This function copies at most len bytes from the FIFO into the to buffer and returns the number of copied bytes.

COPYRIGHT
Kernel Hackers Manual 2.6.					     July 2010						       KFIFO_OUT_LOCKED(9)