KFIFO_IN_REC(9) FIFO Buffer KFIFO_IN_REC(9)
NAME
kfifo_in_rec - puts some record data into the FIFO
SYNOPSIS
__must_check unsigned int kfifo_in_rec(struct kfifo * fifo, void * from, unsigned int n, unsigned int recsize);
ARGUMENTS
fifo
the fifo to be used.
from
the data to be added.
n
the length of the data to be added.
recsize
size of record field
DESCRIPTION
This function copies n bytes from the from into the FIFO and returns the number of bytes which cannot be copied. A returned value greater
than the n value means that the record doesn't fit into the buffer.
Note that with only one concurrent reader and one concurrent writer, you don't need extra locking to use these functions.
COPYRIGHT
Kernel Hackers Manual 2.6. July 2010 KFIFO_IN_REC(9)
