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authorAkinobu Mita <akinobu.mita@gmail.com>2013-08-03 18:52:13 +0900
committerDavid Woodhouse <David.Woodhouse@intel.com>2013-08-30 21:34:21 +0100
commit5a78df69eeb34b560a92f64170625083018383de (patch)
tree70644ebafeeca96667a213d650b73f203123d346 /drivers/mtd/tests
parent59b0816d7c7de3c14d6dd59da3baa3deffb973da (diff)
downloadblackbird-obmc-linux-5a78df69eeb34b560a92f64170625083018383de.tar.gz
blackbird-obmc-linux-5a78df69eeb34b560a92f64170625083018383de.zip
mtd: mtd_stresstest: use mtd_test helpers
Use mtdtest_read(), mtdtest_write(), mtdtest_erase_eraseblock(), and mtdtest_scan_for_bad_eraseblocks() in mtd_test helpers. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Cc: Brian Norris <computersforpeace@gmail.com> Cc: Vikram Narayanan <vikram186@gmail.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'drivers/mtd/tests')
-rw-r--r--drivers/mtd/tests/stresstest.c86
1 files changed, 12 insertions, 74 deletions
diff --git a/drivers/mtd/tests/stresstest.c b/drivers/mtd/tests/stresstest.c
index 3a95e61b535d..169524845401 100644
--- a/drivers/mtd/tests/stresstest.c
+++ b/drivers/mtd/tests/stresstest.c
@@ -31,6 +31,8 @@
#include <linux/vmalloc.h>
#include <linux/random.h>
+#include "mtd_test.h"
+
static int dev = -EINVAL;
module_param(dev, int, S_IRUGO);
MODULE_PARM_DESC(dev, "MTD device number to use");
@@ -81,46 +83,8 @@ static int rand_len(int offs)
return len;
}
-static int erase_eraseblock(int ebnum)
-{
- int err;
- struct erase_info ei;
- loff_t addr = ebnum * mtd->erasesize;
-
- memset(&ei, 0, sizeof(struct erase_info));
- ei.mtd = mtd;
- ei.addr = addr;
- ei.len = mtd->erasesize;
-
- err = mtd_erase(mtd, &ei);
- if (unlikely(err)) {
- pr_err("error %d while erasing EB %d\n", err, ebnum);
- return err;
- }
-
- if (unlikely(ei.state == MTD_ERASE_FAILED)) {
- pr_err("some erase error occurred at EB %d\n",
- ebnum);
- return -EIO;
- }
-
- return 0;
-}
-
-static int is_block_bad(int ebnum)
-{
- loff_t addr = ebnum * mtd->erasesize;
- int ret;
-
- ret = mtd_block_isbad(mtd, addr);
- if (ret)
- pr_info("block %d is bad\n", ebnum);
- return ret;
-}
-
static int do_read(void)
{
- size_t read;
int eb = rand_eb();
int offs = rand_offs();
int len = rand_len(offs), err;
@@ -133,14 +97,10 @@ static int do_read(void)
len = mtd->erasesize - offs;
}
addr = eb * mtd->erasesize + offs;
- err = mtd_read(mtd, addr, len, &read, readbuf);
- if (mtd_is_bitflip(err))
- err = 0;
- if (unlikely(err || read != len)) {
+ err = mtdtest_read(mtd, addr, len, readbuf);
+ if (unlikely(err)) {
pr_err("error: read failed at 0x%llx\n",
(long long)addr);
- if (!err)
- err = -EINVAL;
return err;
}
return 0;
@@ -149,12 +109,11 @@ static int do_read(void)
static int do_write(void)
{
int eb = rand_eb(), offs, err, len;
- size_t written;
loff_t addr;
offs = offsets[eb];
if (offs >= mtd->erasesize) {
- err = erase_eraseblock(eb);
+ err = mtdtest_erase_eraseblock(mtd, eb);
if (err)
return err;
offs = offsets[eb] = 0;
@@ -165,19 +124,17 @@ static int do_write(void)
if (bbt[eb + 1])
len = mtd->erasesize - offs;
else {
- err = erase_eraseblock(eb + 1);
+ err = mtdtest_erase_eraseblock(mtd, eb + 1);
if (err)
return err;
offsets[eb + 1] = 0;
}
}
addr = eb * mtd->erasesize + offs;
- err = mtd_write(mtd, addr, len, &written, writebuf);
- if (unlikely(err || written != len)) {
+ err = mtdtest_write(mtd, addr, len, writebuf);
+ if (unlikely(err)) {
pr_err("error: write failed at 0x%llx\n",
(long long)addr);
- if (!err)
- err = -EINVAL;
return err;
}
offs += len;
@@ -197,28 +154,6 @@ static int do_operation(void)
return do_write();
}
-static int scan_for_bad_eraseblocks(void)
-{
- int i, bad = 0;
-
- bbt = kzalloc(ebcnt, GFP_KERNEL);
- if (!bbt)
- return -ENOMEM;
-
- if (!mtd_can_have_bb(mtd))
- return 0;
-
- pr_info("scanning for bad eraseblocks\n");
- for (i = 0; i < ebcnt; ++i) {
- bbt[i] = is_block_bad(i) ? 1 : 0;
- if (bbt[i])
- bad += 1;
- cond_resched();
- }
- pr_info("scanned %d eraseblocks, %d are bad\n", i, bad);
- return 0;
-}
-
static int __init mtd_stresstest_init(void)
{
int err;
@@ -280,7 +215,10 @@ static int __init mtd_stresstest_init(void)
offsets[i] = mtd->erasesize;
prandom_bytes(writebuf, bufsize);
- err = scan_for_bad_eraseblocks();
+ bbt = kzalloc(ebcnt, GFP_KERNEL);
+ if (!bbt)
+ goto out;
+ err = mtdtest_scan_for_bad_eraseblocks(mtd, bbt, 0, ebcnt);
if (err)
goto out;
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