lkml.org 
[lkml]   [2015]   [Oct]   [20]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 11/13] lib/test_printf.c: add test for large bitmaps
Date
Following "lib/vsprintf.c: expand field_width to 24 bits", let's add a
test to see that we now actually support bitmaps with 65536 bits.

Cc: Maurizio Lombardi <mlombard@redhat.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
---
lib/test_printf.c | 17 +++++++++++++++++
1 file changed, 17 insertions(+)

diff --git a/lib/test_printf.c b/lib/test_printf.c
index 8fca007d9bcd..19fa411dba78 100644
--- a/lib/test_printf.c
+++ b/lib/test_printf.c
@@ -12,6 +12,7 @@
#include <linux/slab.h>
#include <linux/string.h>

+#include <linux/bitmap.h>
#include <linux/socket.h>
#include <linux/in.h>

@@ -312,6 +313,20 @@ struct_clk(void)
}

static void __init
+large_bitmap(void)
+{
+ const int nbits = 1 << 16;
+ unsigned long *bits = kcalloc(BITS_TO_LONGS(nbits), sizeof(long), GFP_KERNEL);
+ if (!bits)
+ return;
+
+ bitmap_set(bits, 1, 20);
+ bitmap_set(bits, 60000, 15);
+ test("1-20,60000-60014", "%*pbl", nbits, bits);
+ kfree(bits);
+}
+
+static void __init
bitmap(void)
{
DECLARE_BITMAP(bits, 20);
@@ -330,6 +345,8 @@ bitmap(void)
bitmap_fill(bits, 20);
test("fffff|fffff", "%20pb|%*pb", bits, 20, bits);
test("0-19|0-19", "%20pbl|%*pbl", bits, 20, bits);
+
+ large_bitmap();
}

static void __init
--
2.6.1


\
 
 \ /
  Last update: 2015-10-20 22:41    [W:0.032 / U:1.332 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site