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mtd: Make MTD tests cancelable 

I always go nuts when I start an MTD test on a slow device and have to
wait forever until it finishes. From the debug output I already know
what the issue is but I have to wait or reset the board hard. Resetting
is often not an option (remote access, you don't want lose the current
state, etc...).

The solution is easy, check for pending signals at key positions in the
code. Using that one can even stop a test by pressing CTRL-C as
insmod/modprobe have SIGINT pending.

Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
This commit is contained in:
Richard Weinberger 2015-03-29 21:52:06 +02:00 committed by Brian Norris
parent d2b51c8087
commit 2a6a28e792
10 changed files with 120 additions and 24 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/mtd/tests/mtd_nandecctest.c
View File

@ -9,6 +9,8 @@
#include <linux/slab.h>
#include <linux/mtd/nand_ecc.h>
#include "mtd_test.h"
/*
* Test the implementation for software ECC
*
@ -274,6 +276,10 @@ static int nand_ecc_test_run(const size_t size)
}
pr_info("ok - %s-%zd\n",
nand_ecc_test[i].name, size);
err = mtdtest_relax();
if (err)
break;
}
error:
kfree(error_data);

12
drivers/mtd/tests/mtd_test.h
View File

@ -1,4 +1,16 @@
#include <linux/mtd/mtd.h>
#include <linux/sched.h>
static inline int mtdtest_relax(void)
{
cond_resched();
if (signal_pending(current)) {
pr_info("aborting test due to pending signal!\n");
return -EINTR;
}
return 0;
}
int mtdtest_erase_eraseblock(struct mtd_info *mtd, unsigned int ebnum);
int mtdtest_scan_for_bad_eraseblocks(struct mtd_info *mtd, unsigned char *bbt,

4
drivers/mtd/tests/nandbiterrs.c
View File

@ -320,6 +320,10 @@ static int overwrite_test(void)
break;
}
err = mtdtest_relax();
if (err)
break;
opno++;
}

26
drivers/mtd/tests/oobtest.c
View File

@ -112,7 +112,10 @@ static int write_whole_device(void)
return err;
if (i % 256 == 0)
pr_info("written up to eraseblock %u\n", i);
cond_resched();
err = mtdtest_relax();
if (err)
return err;
}
pr_info("written %u eraseblocks\n", i);
return 0;
@ -318,7 +321,10 @@ static int verify_all_eraseblocks(void)
return err;
if (i % 256 == 0)
pr_info("verified up to eraseblock %u\n", i);
cond_resched();
err = mtdtest_relax();
if (err)
return err;
}
pr_info("verified %u eraseblocks\n", i);
return 0;
@ -429,7 +435,10 @@ static int __init mtd_oobtest_init(void)
goto out;
if (i % 256 == 0)
pr_info("verified up to eraseblock %u\n", i);
cond_resched();
err = mtdtest_relax();
if (err)
goto out;
}
pr_info("verified %u eraseblocks\n", i);
@ -642,7 +651,11 @@ static int __init mtd_oobtest_init(void)
goto out;
if (i % 256 == 0)
pr_info("written up to eraseblock %u\n", i);
cond_resched();
err = mtdtest_relax();
if (err)
goto out;
addr += mtd->writesize;
}
}
@ -680,7 +693,10 @@ static int __init mtd_oobtest_init(void)
}
if (i % 256 == 0)
pr_info("verified up to eraseblock %u\n", i);
cond_resched();
err = mtdtest_relax();
if (err)
goto out;
}
pr_info("verified %u eraseblocks\n", i);

10
drivers/mtd/tests/pagetest.c
View File

@ -407,7 +407,10 @@ static int __init mtd_pagetest_init(void)
goto out;
if (i % 256 == 0)
pr_info("written up to eraseblock %u\n", i);
cond_resched();
err = mtdtest_relax();
if (err)
goto out;
}
pr_info("written %u eraseblocks\n", i);
@ -422,7 +425,10 @@ static int __init mtd_pagetest_init(void)
goto out;
if (i % 256 == 0)
pr_info("verified up to eraseblock %u\n", i);
cond_resched();
err = mtdtest_relax();
if (err)
goto out;
}
pr_info("verified %u eraseblocks\n", i);

5
drivers/mtd/tests/readtest.c
View File

@ -190,7 +190,10 @@ static int __init mtd_readtest_init(void)
if (!err)
err = ret;
}
cond_resched();
err = mtdtest_relax();
if (err)
goto out;
}
if (err)

36
drivers/mtd/tests/speedtest.c
View File

@ -269,7 +269,10 @@ static int __init mtd_speedtest_init(void)
err = write_eraseblock(i);
if (err)
goto out;
cond_resched();
err = mtdtest_relax();
if (err)
goto out;
}
stop_timing();
speed = calc_speed();
@ -284,7 +287,10 @@ static int __init mtd_speedtest_init(void)
err = read_eraseblock(i);
if (err)
goto out;
cond_resched();
err = mtdtest_relax();
if (err)
goto out;
}
stop_timing();
speed = calc_speed();
@ -303,7 +309,10 @@ static int __init mtd_speedtest_init(void)
err = write_eraseblock_by_page(i);
if (err)
goto out;
cond_resched();
err = mtdtest_relax();
if (err)
goto out;
}
stop_timing();
speed = calc_speed();
@ -318,7 +327,10 @@ static int __init mtd_speedtest_init(void)
err = read_eraseblock_by_page(i);
if (err)
goto out;
cond_resched();
err = mtdtest_relax();
if (err)
goto out;
}
stop_timing();
speed = calc_speed();
@ -337,7 +349,10 @@ static int __init mtd_speedtest_init(void)
err = write_eraseblock_by_2pages(i);
if (err)
goto out;
cond_resched();
err = mtdtest_relax();
if (err)
goto out;
}
stop_timing();
speed = calc_speed();
@ -352,7 +367,10 @@ static int __init mtd_speedtest_init(void)
err = read_eraseblock_by_2pages(i);
if (err)
goto out;
cond_resched();
err = mtdtest_relax();
if (err)
goto out;
}
stop_timing();
speed = calc_speed();
@ -385,7 +403,11 @@ static int __init mtd_speedtest_init(void)
err = multiblock_erase(i, j);
if (err)
goto out;
cond_resched();
err = mtdtest_relax();
if (err)
goto out;
i += j;
}
stop_timing();

5
drivers/mtd/tests/stresstest.c
View File

@ -221,7 +221,10 @@ static int __init mtd_stresstest_init(void)
err = do_operation();
if (err)
goto out;
cond_resched();
err = mtdtest_relax();
if (err)
goto out;
}
pr_info("finished, %d operations done\n", op);

25
drivers/mtd/tests/subpagetest.c
View File

@ -269,7 +269,10 @@ static int verify_all_eraseblocks_ff(void)
return err;
if (i % 256 == 0)
pr_info("verified up to eraseblock %u\n", i);
cond_resched();
err = mtdtest_relax();
if (err)
return err;
}
pr_info("verified %u eraseblocks\n", i);
return 0;
@ -346,7 +349,10 @@ static int __init mtd_subpagetest_init(void)
goto out;
if (i % 256 == 0)
pr_info("written up to eraseblock %u\n", i);
cond_resched();
err = mtdtest_relax();
if (err)
goto out;
}
pr_info("written %u eraseblocks\n", i);
@ -360,7 +366,10 @@ static int __init mtd_subpagetest_init(void)
goto out;
if (i % 256 == 0)
pr_info("verified up to eraseblock %u\n", i);
cond_resched();
err = mtdtest_relax();
if (err)
goto out;
}
pr_info("verified %u eraseblocks\n", i);
@ -383,7 +392,10 @@ static int __init mtd_subpagetest_init(void)
goto out;
if (i % 256 == 0)
pr_info("written up to eraseblock %u\n", i);
cond_resched();
err = mtdtest_relax();
if (err)
goto out;
}
pr_info("written %u eraseblocks\n", i);
@ -398,7 +410,10 @@ static int __init mtd_subpagetest_init(void)
goto out;
if (i % 256 == 0)
pr_info("verified up to eraseblock %u\n", i);
cond_resched();
err = mtdtest_relax();
if (err)
goto out;
}
pr_info("verified %u eraseblocks\n", i);

15
drivers/mtd/tests/torturetest.c
View File

@ -279,7 +279,10 @@ static int __init tort_init(void)
" for 0xFF... pattern\n");
goto out;
}
cond_resched();
err = mtdtest_relax();
if (err)
goto out;
}
}
@ -294,7 +297,10 @@ static int __init tort_init(void)
err = write_pattern(i, patt);
if (err)
goto out;
cond_resched();
err = mtdtest_relax();
if (err)
goto out;
}
/* Verify what we wrote */
@ -314,7 +320,10 @@ static int __init tort_init(void)
"0x55AA55..." : "0xAA55AA...");
goto out;
}
cond_resched();
err = mtdtest_relax();
if (err)
goto out;
}
}