From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pa0-f49.google.com ([209.85.220.49]) by merlin.infradead.org with esmtps (Exim 4.76 #1 (Red Hat Linux)) id 1TYGgR-0005gr-IY for linux-mtd@lists.infradead.org; Tue, 13 Nov 2012 13:37:48 +0000 Received: by mail-pa0-f49.google.com with SMTP id bi5so4642430pad.36 for ; Tue, 13 Nov 2012 05:37:43 -0800 (PST) From: Akinobu Mita To: linux-kernel@vger.kernel.org, akpm@linux-foundation.org Subject: [PATCH v3 05/11] ubifs: use prandom_bytes Date: Tue, 13 Nov 2012 22:37:04 +0900 Message-Id: <1352813830-4624-6-git-send-email-akinobu.mita@gmail.com> In-Reply-To: <1352813830-4624-1-git-send-email-akinobu.mita@gmail.com> References: <1352813830-4624-1-git-send-email-akinobu.mita@gmail.com> Cc: Adrian Hunter , linux-mtd@lists.infradead.org, Akinobu Mita , Artem Bityutskiy List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , This also converts filling memory loop to use memset. Signed-off-by: Akinobu Mita Cc: Artem Bityutskiy Cc: Adrian Hunter Cc: linux-mtd@lists.infradead.org --- * v3 - rename random32_get_bytes to prandom_bytes fs/ubifs/debug.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/fs/ubifs/debug.c b/fs/ubifs/debug.c index 6291163..12817ff 100644 --- a/fs/ubifs/debug.c +++ b/fs/ubifs/debug.c @@ -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; } -- 1.7.11.7