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authorAdrian Hunter <adrian.hunter@nokia.com>2011-02-08 12:02:39 +0200
committerDavid Woodhouse <David.Woodhouse@intel.com>2011-03-11 14:22:45 +0000
commitfc7fe7691c6bbd5f8f51a87e759770975c648410 (patch)
tree131c8868bc2f17e3a91e3d077bf04b22a9ac8b3d /drivers
parente6da85685b2dec1e69e58366c22d1f883d6da575 (diff)
mtd: tests: add count parameter to mtd_speedtest
By default mtd_speedtest uses all the eraseblocks of the MTD partition being tested. For large partitions a smaller number is sufficient and makes running the test quicker. For that reason, add a parameter 'count' to specify the maximum number of eraseblocks to use for testing. Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/mtd/tests/mtd_speedtest.c15
1 files changed, 13 insertions, 2 deletions
diff --git a/drivers/mtd/tests/mtd_speedtest.c b/drivers/mtd/tests/mtd_speedtest.c
index 161feeb7b8b9..9bd986ef3b53 100644
--- a/drivers/mtd/tests/mtd_speedtest.c
+++ b/drivers/mtd/tests/mtd_speedtest.c
@@ -16,7 +16,7 @@
*
* Test read and write speed of a MTD device.
*
- * Author: Adrian Hunter <ext-adrian.hunter@nokia.com>
+ * Author: Adrian Hunter <adrian.hunter@nokia.com>
*/
#include <linux/init.h>
@@ -33,6 +33,11 @@ static int dev;
module_param(dev, int, S_IRUGO);
MODULE_PARM_DESC(dev, "MTD device number to use");
+static int count;
+module_param(count, int, S_IRUGO);
+MODULE_PARM_DESC(count, "Maximum number of eraseblocks to use "
+ "(0 means use all)");
+
static struct mtd_info *mtd;
static unsigned char *iobuf;
static unsigned char *bbt;
@@ -326,7 +331,10 @@ static int __init mtd_speedtest_init(void)
printk(KERN_INFO "\n");
printk(KERN_INFO "=================================================\n");
- printk(PRINT_PREF "MTD device: %d\n", dev);
+ if (count)
+ printk(PRINT_PREF "MTD device: %d count: %d\n", dev, count);
+ else
+ printk(PRINT_PREF "MTD device: %d\n", dev);
mtd = get_mtd_device(NULL, dev);
if (IS_ERR(mtd)) {
@@ -353,6 +361,9 @@ static int __init mtd_speedtest_init(void)
(unsigned long long)mtd->size, mtd->erasesize,
pgsize, ebcnt, pgcnt, mtd->oobsize);
+ if (count > 0 && count < ebcnt)
+ ebcnt = count;
+
err = -ENOMEM;
iobuf = kmalloc(mtd->erasesize, GFP_KERNEL);
if (!iobuf) {