Export get_random_int()

Needed for bcache - need a cheap source of random numbers for perturbing
IO sizes, for rate limiting IO to the SSD.

Signed-off-by: Kent Overstreet <[e-mail]>
CC: "Theodore Ts'o" <[e-mail]>

drivers/char/random.c

···
 
 	return ret;
 }
+EXPORT_SYMBOL(get_random_int);
 
 /*
  * randomize_range() returns a start address such that