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kfifo: move out spinlock

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Move the pointer to the spinlock out of struct kfifo.  Most users in
tree do not actually use a spinlock, so the few exceptions now have to
call kfifo_{get,put}_locked, which takes an extra argument to a
spinlock.

Signed-off-by: Stefani Seibold <stefani@seibold.net>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Acked-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Stefani Seibold
2009-12-21 14:37:27 -08:00
committed by Linus Torvalds
parent 4546548789
commit c1e13f2567
16 changed files with 132 additions and 131 deletions
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4
drivers/usb/serial/generic.c
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@ -285,7 +285,7 @@ static int usb_serial_generic_write_start(struct usb_serial_port *port)
return 0;
data = port->write_urb->transfer_buffer;
count = kfifo_get(port->write_fifo, data, port->bulk_out_size);
count = kfifo_get_locked(port->write_fifo, data, port->bulk_out_size, &port->lock);
usb_serial_debug_data(debug, &port->dev, __func__, count, data);
/* set up our urb */
@ -345,7 +345,7 @@ int usb_serial_generic_write(struct tty_struct *tty,
return usb_serial_multi_urb_write(tty, port,
buf, count);
count = kfifo_put(port->write_fifo, buf, count);
count = kfifo_put_locked(port->write_fifo, buf, count, &port->lock);
result = usb_serial_generic_write_start(port);
if (result >= 0)