Commit cedddb00 authored by Akinobu Mita's avatar Akinobu Mita Committed by Linus Torvalds
Browse files

uuid: use prandom_bytes() 



Use prandom_bytes() to generate 16 bytes of pseudo-random bytes.

Signed-off-by: default avatarAkinobu Mita <akinobu.mita@gmail.com>
Cc: "Theodore Ts'o" <tytso@mit.edu>
Cc: Huang Ying <ying.huang@intel.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 3ec39abd

lib/uuid.c

+1 −7
Original line number Diff line number Diff line
@@ -25,13 +25,7 @@ 


static void __uuid_gen_common(__u8 b[16])

{

	int i;

	u32 r;



	for (i = 0; i < 4; i++) {

		r = random32();

		memcpy(b + i * 4, &r, 4);

	}

	prandom_bytes(b, 16);

	/* reversion 0b10 */

	b[8] = (b[8] & 0x3F) | 0x80;

}