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ubifs: use prandom_bytes

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This also converts filling memory loop to use memset.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Artem Bityutskiy <dedekind1@gmail.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: "Theodore Ts'o" <tytso@mit.edu>
Cc: David Laight <david.laight@aculab.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Eilon Greenstein <eilong@broadcom.com>
Cc: Michel Lespinasse <walken@google.com>
Cc: Robert Love <robert.w.love@intel.com>
Cc: Valdis Kletnieks <valdis.kletnieks@vt.edu>
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 2012-12-17 16:04:35 -08:00 committed by Linus Torvalds
parent 7e45bf83f4
commit cdd9fa8de6
1 changed files with 3 additions and 5 deletions
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8
fs/ubifs/debug.c
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@ -2560,7 +2560,7 @@ static int power_cut_emulated(struct ubifs_info *c, int lnum, int write)
static int corrupt_data(const struct ubifs_info *c, const void *buf,
unsigned int len)
{
unsigned int from, to, i, ffs = chance(1, 2);
unsigned int from, to, ffs = chance(1, 2);
unsigned char *p = (void *)buf;
from = random32() % (len + 1);
@ -2571,11 +2571,9 @@ static int corrupt_data(const struct ubifs_info *c, const void *buf,
ffs ? "0xFFs" : "random data");
if (ffs)
for (i = from; i < to; i++)
p[i] = 0xFF;
memset(p + from, 0xFF, to - from);
else
for (i = from; i < to; i++)
p[i] = random32() % 0x100;
prandom_bytes(p + from, to - from);
return to;
}