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uuid: use prandom_bytes() 

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

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: "Theodore Ts'o" <tytso@mit.edu>
Cc: Huang Ying <ying.huang@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Akinobu Mita 2013-04-29 16:21:25 -07:00 committed by Linus Torvalds
parent 3ec39abdcc
commit cedddb0002
1 changed files with 1 additions and 7 deletions
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8
lib/uuid.c
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@ -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;
}