[PATCH -next v2 04/10] mtd: mtd_pagetest: use mtd_test helpers
Akinobu Mita
akinobu.mita at gmail.com
Sat Aug 3 05:52:10 EDT 2013
Use mtdtest_write(), mtdtest_read(), mtdtest_erase_eraseblock(),
mtdtest_scan_for_bad_eraseblocks(), and mtdtest_erase_good_eraseblocks()
in mtd_test helpers.
Signed-off-by: Akinobu Mita <akinobu.mita at gmail.com>
Cc: Brian Norris <computersforpeace at gmail.com>
Cc: Vikram Narayanan <vikram186 at gmail.com>
Cc: Adrian Hunter <adrian.hunter at intel.com>
Cc: Artem Bityutskiy <dedekind1 at gmail.com>
Cc: David Woodhouse <dwmw2 at infradead.org>
Cc: linux-mtd at lists.infradead.org
---
* Changes from v1
- follow the changes of helper functions
drivers/mtd/tests/pagetest.c | 199 ++++++++++++-------------------------------
1 file changed, 55 insertions(+), 144 deletions(-)
diff --git a/drivers/mtd/tests/pagetest.c b/drivers/mtd/tests/pagetest.c
index acd991f..22cc38c 100644
--- a/drivers/mtd/tests/pagetest.c
+++ b/drivers/mtd/tests/pagetest.c
@@ -31,6 +31,8 @@
#include <linux/sched.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");
@@ -48,42 +50,15 @@ static int pgcnt;
static int errcnt;
static struct rnd_state rnd_state;
-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 (err) {
- pr_err("error %d while erasing EB %d\n", err, ebnum);
- return err;
- }
-
- if (ei.state == MTD_ERASE_FAILED) {
- pr_err("some erase error occurred at EB %d\n",
- ebnum);
- return -EIO;
- }
-
- return 0;
-}
-
static int write_eraseblock(int ebnum)
{
- int err = 0;
- size_t written;
+ int err;
loff_t addr = ebnum * mtd->erasesize;
prandom_bytes_state(&rnd_state, writebuf, mtd->erasesize);
cond_resched();
- err = mtd_write(mtd, addr, mtd->erasesize, &written, writebuf);
- if (err || written != mtd->erasesize)
+ err = mtdtest_write(mtd, addr, mtd->erasesize, writebuf);
+ if (err)
pr_err("error: write failed at %#llx\n",
(long long)addr);
@@ -93,7 +68,6 @@ static int write_eraseblock(int ebnum)
static int verify_eraseblock(int ebnum)
{
uint32_t j;
- size_t read;
int err = 0, i;
loff_t addr0, addrn;
loff_t addr = ebnum * mtd->erasesize;
@@ -109,27 +83,21 @@ static int verify_eraseblock(int ebnum)
prandom_bytes_state(&rnd_state, writebuf, mtd->erasesize);
for (j = 0; j < pgcnt - 1; ++j, addr += pgsize) {
/* Do a read to set the internal dataRAMs to different data */
- err = mtd_read(mtd, addr0, bufsize, &read, twopages);
- if (mtd_is_bitflip(err))
- err = 0;
- if (err || read != bufsize) {
+ err = mtdtest_read(mtd, addr0, bufsize, twopages);
+ if (err) {
pr_err("error: read failed at %#llx\n",
(long long)addr0);
return err;
}
- err = mtd_read(mtd, addrn - bufsize, bufsize, &read, twopages);
- if (mtd_is_bitflip(err))
- err = 0;
- if (err || read != bufsize) {
+ err = mtdtest_read(mtd, addrn - bufsize, bufsize, twopages);
+ if (err) {
pr_err("error: read failed at %#llx\n",
(long long)(addrn - bufsize));
return err;
}
memset(twopages, 0, bufsize);
- err = mtd_read(mtd, addr, bufsize, &read, twopages);
- if (mtd_is_bitflip(err))
- err = 0;
- if (err || read != bufsize) {
+ err = mtdtest_read(mtd, addr, bufsize, twopages);
+ if (err) {
pr_err("error: read failed at %#llx\n",
(long long)addr);
break;
@@ -145,27 +113,21 @@ static int verify_eraseblock(int ebnum)
struct rnd_state old_state = rnd_state;
/* Do a read to set the internal dataRAMs to different data */
- err = mtd_read(mtd, addr0, bufsize, &read, twopages);
- if (mtd_is_bitflip(err))
- err = 0;
- if (err || read != bufsize) {
+ err = mtdtest_read(mtd, addr0, bufsize, twopages);
+ if (err) {
pr_err("error: read failed at %#llx\n",
(long long)addr0);
return err;
}
- err = mtd_read(mtd, addrn - bufsize, bufsize, &read, twopages);
- if (mtd_is_bitflip(err))
- err = 0;
- if (err || read != bufsize) {
+ err = mtdtest_read(mtd, addrn - bufsize, bufsize, twopages);
+ if (err) {
pr_err("error: read failed at %#llx\n",
(long long)(addrn - bufsize));
return err;
}
memset(twopages, 0, bufsize);
- err = mtd_read(mtd, addr, bufsize, &read, twopages);
- if (mtd_is_bitflip(err))
- err = 0;
- if (err || read != bufsize) {
+ err = mtdtest_read(mtd, addr, bufsize, twopages);
+ if (err) {
pr_err("error: read failed at %#llx\n",
(long long)addr);
return err;
@@ -184,7 +146,6 @@ static int verify_eraseblock(int ebnum)
static int crosstest(void)
{
- size_t read;
int err = 0, i;
loff_t addr, addr0, addrn;
unsigned char *pp1, *pp2, *pp3, *pp4;
@@ -208,10 +169,8 @@ static int crosstest(void)
/* Read 2nd-to-last page to pp1 */
addr = addrn - pgsize - pgsize;
- err = mtd_read(mtd, addr, pgsize, &read, pp1);
- if (mtd_is_bitflip(err))
- err = 0;
- if (err || read != pgsize) {
+ err = mtdtest_read(mtd, addr, pgsize, pp1);
+ if (err) {
pr_err("error: read failed at %#llx\n",
(long long)addr);
kfree(pp1);
@@ -220,10 +179,8 @@ static int crosstest(void)
/* Read 3rd-to-last page to pp1 */
addr = addrn - pgsize - pgsize - pgsize;
- err = mtd_read(mtd, addr, pgsize, &read, pp1);
- if (mtd_is_bitflip(err))
- err = 0;
- if (err || read != pgsize) {
+ err = mtdtest_read(mtd, addr, pgsize, pp1);
+ if (err) {
pr_err("error: read failed at %#llx\n",
(long long)addr);
kfree(pp1);
@@ -233,10 +190,8 @@ static int crosstest(void)
/* Read first page to pp2 */
addr = addr0;
pr_info("reading page at %#llx\n", (long long)addr);
- err = mtd_read(mtd, addr, pgsize, &read, pp2);
- if (mtd_is_bitflip(err))
- err = 0;
- if (err || read != pgsize) {
+ err = mtdtest_read(mtd, addr, pgsize, pp2);
+ if (err) {
pr_err("error: read failed at %#llx\n",
(long long)addr);
kfree(pp1);
@@ -246,10 +201,8 @@ static int crosstest(void)
/* Read last page to pp3 */
addr = addrn - pgsize;
pr_info("reading page at %#llx\n", (long long)addr);
- err = mtd_read(mtd, addr, pgsize, &read, pp3);
- if (mtd_is_bitflip(err))
- err = 0;
- if (err || read != pgsize) {
+ err = mtdtest_read(mtd, addr, pgsize, pp3);
+ if (err) {
pr_err("error: read failed at %#llx\n",
(long long)addr);
kfree(pp1);
@@ -259,10 +212,8 @@ static int crosstest(void)
/* Read first page again to pp4 */
addr = addr0;
pr_info("reading page at %#llx\n", (long long)addr);
- err = mtd_read(mtd, addr, pgsize, &read, pp4);
- if (mtd_is_bitflip(err))
- err = 0;
- if (err || read != pgsize) {
+ err = mtdtest_read(mtd, addr, pgsize, pp4);
+ if (err) {
pr_err("error: read failed at %#llx\n",
(long long)addr);
kfree(pp1);
@@ -283,7 +234,6 @@ static int crosstest(void)
static int erasecrosstest(void)
{
- size_t read, written;
int err = 0, i, ebnum, ebnum2;
loff_t addr0;
char *readbuf = twopages;
@@ -302,26 +252,24 @@ static int erasecrosstest(void)
ebnum2 -= 1;
pr_info("erasing block %d\n", ebnum);
- err = erase_eraseblock(ebnum);
+ err = mtdtest_erase_eraseblock(mtd, ebnum);
if (err)
return err;
pr_info("writing 1st page of block %d\n", ebnum);
prandom_bytes_state(&rnd_state, writebuf, pgsize);
strcpy(writebuf, "There is no data like this!");
- err = mtd_write(mtd, addr0, pgsize, &written, writebuf);
- if (err || written != pgsize) {
+ err = mtdtest_write(mtd, addr0, pgsize, writebuf);
+ if (err) {
pr_info("error: write failed at %#llx\n",
(long long)addr0);
- return err ? err : -1;
+ return err;
}
pr_info("reading 1st page of block %d\n", ebnum);
memset(readbuf, 0, pgsize);
- err = mtd_read(mtd, addr0, pgsize, &read, readbuf);
- if (mtd_is_bitflip(err))
- err = 0;
- if (err || read != pgsize) {
+ err = mtdtest_read(mtd, addr0, pgsize, readbuf);
+ if (err) {
pr_err("error: read failed at %#llx\n",
(long long)addr0);
return err ? err : -1;
@@ -335,31 +283,29 @@ static int erasecrosstest(void)
}
pr_info("erasing block %d\n", ebnum);
- err = erase_eraseblock(ebnum);
+ err = mtdtest_erase_eraseblock(mtd, ebnum);
if (err)
return err;
pr_info("writing 1st page of block %d\n", ebnum);
prandom_bytes_state(&rnd_state, writebuf, pgsize);
strcpy(writebuf, "There is no data like this!");
- err = mtd_write(mtd, addr0, pgsize, &written, writebuf);
- if (err || written != pgsize) {
+ err = mtdtest_write(mtd, addr0, pgsize, writebuf);
+ if (err) {
pr_err("error: write failed at %#llx\n",
(long long)addr0);
- return err ? err : -1;
+ return err;
}
pr_info("erasing block %d\n", ebnum2);
- err = erase_eraseblock(ebnum2);
+ err = mtdtest_erase_eraseblock(mtd, ebnum2);
if (err)
return err;
pr_info("reading 1st page of block %d\n", ebnum);
memset(readbuf, 0, pgsize);
- err = mtd_read(mtd, addr0, pgsize, &read, readbuf);
- if (mtd_is_bitflip(err))
- err = 0;
- if (err || read != pgsize) {
+ err = mtdtest_read(mtd, addr0, pgsize, readbuf);
+ if (err) {
pr_err("error: read failed at %#llx\n",
(long long)addr0);
return err ? err : -1;
@@ -379,7 +325,6 @@ static int erasecrosstest(void)
static int erasetest(void)
{
- size_t read, written;
int err = 0, i, ebnum, ok = 1;
loff_t addr0;
@@ -393,29 +338,27 @@ static int erasetest(void)
}
pr_info("erasing block %d\n", ebnum);
- err = erase_eraseblock(ebnum);
+ err = mtdtest_erase_eraseblock(mtd, ebnum);
if (err)
return err;
pr_info("writing 1st page of block %d\n", ebnum);
prandom_bytes_state(&rnd_state, writebuf, pgsize);
- err = mtd_write(mtd, addr0, pgsize, &written, writebuf);
- if (err || written != pgsize) {
+ err = mtdtest_write(mtd, addr0, pgsize, writebuf);
+ if (err) {
pr_err("error: write failed at %#llx\n",
(long long)addr0);
- return err ? err : -1;
+ return err;
}
pr_info("erasing block %d\n", ebnum);
- err = erase_eraseblock(ebnum);
+ err = mtdtest_erase_eraseblock(mtd, ebnum);
if (err)
return err;
pr_info("reading 1st page of block %d\n", ebnum);
- err = mtd_read(mtd, addr0, pgsize, &read, twopages);
- if (mtd_is_bitflip(err))
- err = 0;
- if (err || read != pgsize) {
+ err = mtdtest_read(mtd, addr0, pgsize, twopages);
+ if (err) {
pr_err("error: read failed at %#llx\n",
(long long)addr0);
return err ? err : -1;
@@ -438,36 +381,6 @@ static int erasetest(void)
return err;
}
-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 scan_for_bad_eraseblocks(void)
-{
- int i, bad = 0;
-
- bbt = kzalloc(ebcnt, GFP_KERNEL);
- if (!bbt)
- return -ENOMEM;
-
- 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_pagetest_init(void)
{
int err = 0;
@@ -521,21 +434,19 @@ static int __init mtd_pagetest_init(void)
if (!boundary)
goto out;
- 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;
/* Erase all eraseblocks */
pr_info("erasing whole device\n");
- for (i = 0; i < ebcnt; ++i) {
- if (bbt[i])
- continue;
- err = erase_eraseblock(i);
- if (err)
- goto out;
- cond_resched();
- }
- pr_info("erased %u eraseblocks\n", i);
+ err = mtdtest_erase_good_eraseblocks(mtd, bbt, 0, ebcnt);
+ if (err)
+ goto out;
+ pr_info("erased %u eraseblocks\n", ebcnt);
/* Write all eraseblocks */
prandom_seed_state(&rnd_state, 1);
--
1.8.3.1
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