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Date: Fri, 29 Nov 2019 18:57:36 -0500 From: George Spelvin <lkml@....org> To: linux-kernel@...r.kernel.org, lkml@....org Cc: Nathan Lynch <nathan_lynch@...tor.com>, Dmitry Safonov <0x7f454c46@...il.com>, Russell King <linux@...linux.org.uk>, linux-arm-kernel@...ts.infradead.org Subject: [RFC PATCH v1 48/50] arch/arm/kernel/process.c: Use get_random_max32() for sigpage_addr() Which is faster and less biased than get_random_int() % range Signed-off-by: George Spelvin <lkml@....org> Cc: Nathan Lynch <nathan_lynch@...tor.com> Cc: Dmitry Safonov <0x7f454c46@...il.com> Cc: Russell King <linux@...linux.org.uk> Cc: linux-arm-kernel@...ts.infradead.org --- arch/arm/kernel/process.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c index 46e478fb5ea20..9f2556be33505 100644 --- a/arch/arm/kernel/process.c +++ b/arch/arm/kernel/process.c @@ -391,7 +391,7 @@ static unsigned long sigpage_addr(const struct mm_struct *mm, slots = ((last - first) >> PAGE_SHIFT) + 1; - offset = get_random_int() % slots; + offset = get_random_max32(slots); addr = first + (offset << PAGE_SHIFT); -- 2.26.0
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