This patch fixes scheduling latencies in vgacon_do_font_op().  The code is
protected by vga_lock already so it's safe to drop (and re-acquire) the
BKL.

Has been tested in the -VP patchset.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>