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| author | Akinobu Mita <akinobu.mita@gmail.com> | 2013-04-29 16:21:25 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-04-29 18:28:42 -0700 |
| commit | cedddb00023b1321f2bb2739739aa8c9927fc063 (patch) | |
| tree | 425bb1e104ffd4693b28076ee35bcad8f7fbfcd9 /lib/uuid.c | |
| parent | 3ec39abdcc0d3099e8d8894dcbcc8c9490ee48e2 (diff) | |
| download | linux-3.10-cedddb00023b1321f2bb2739739aa8c9927fc063.tar.gz linux-3.10-cedddb00023b1321f2bb2739739aa8c9927fc063.tar.bz2 linux-3.10-cedddb00023b1321f2bb2739739aa8c9927fc063.zip | |
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>
Diffstat (limited to 'lib/uuid.c')
| -rw-r--r-- | lib/uuid.c | 8 |
1 files changed, 1 insertions, 7 deletions
diff --git a/lib/uuid.c b/lib/uuid.c index 52a6fe6387d..398821e4dce 100644 --- a/lib/uuid.c +++ b/lib/uuid.c @@ -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; } |