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Allow to write random data while testing RAID device, so we can also

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test data integrity.
This commit is contained in:
Pawel Jakub Dawidek 2004-11-06 17:10:24 +00:00
parent 24286a2292
commit d93c939aa9
1 changed files with 23 additions and 6 deletions
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29
tools/tools/raidtest/raidtest.c
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@ -66,7 +66,7 @@ usage(void)
{
fprintf(stderr, "usage: %s genfile [-frw] <-s mediasize> [-S sectorsize] <-n nrequests> [file]\n", getprogname());
fprintf(stderr, " %s test [-rw] <-d device> [-n processes] [file]\n", getprogname());
fprintf(stderr, " %s test [-Rrw] <-d device> [-n processes] [file]\n", getprogname());
exit(EXIT_FAILURE);
}
@ -211,7 +211,18 @@ raidtest_genfile(int argc, char *argv[])
}
static void
test_start(int fd, struct ioreq *iorqs, uintmax_t nreqs)
rand_fill(unsigned char *data, unsigned length)
{
u_int32_t *datap = (u_int32_t *)data;
unsigned i;
length /= sizeof(u_int32_t);
for (i = 0; i < length; i++)
datap[i] = arc4random();
}
static void
test_start(int fd, struct ioreq *iorqs, uintmax_t nreqs, int randdata)
{
unsigned char data[MAX_IO_LENGTH];
struct ioreq *iorq;
@ -230,6 +241,8 @@ test_start(int fd, struct ioreq *iorqs, uintmax_t nreqs)
}
break;
case IO_TYPE_WRITE:
if (randdata)
rand_fill(data, iorq->iorq_length);
if (pwrite(fd, data, iorq->iorq_length,
iorq->iorq_offset) != (ssize_t)iorq->iorq_length) {
fprintf(stderr,
@ -264,12 +277,12 @@ raidtest_test(int argc, char *argv[])
unsigned nprocs;
struct stat sb;
pid_t *procs;
int ch, fdd, fdf, j, rdonly, wronly;
int ch, fdd, fdf, j, randdata, rdonly, wronly;
dev = NULL;
nprocs = 1;
rdonly = wronly = 0;
while ((ch = getopt(argc, argv, "d:n:rvw")) != -1) {
randdata = rdonly = wronly = 0;
while ((ch = getopt(argc, argv, "d:n:Rrvw")) != -1) {
switch (ch) {
case 'd':
dev = optarg;
@ -282,6 +295,9 @@ raidtest_test(int argc, char *argv[])
"Invalid value for '%c' argument.", ch);
}
break;
case 'R':
randdata = 1;
break;
case 'r':
rdonly = 1;
break;
@ -373,7 +389,8 @@ raidtest_test(int argc, char *argv[])
switch (procs[i]) {
case 0:
free(procs);
test_start(fdd, &iorqs[nstart], reqs_per_proc);
test_start(fdd, &iorqs[nstart], reqs_per_proc,
randdata);
free(iorqs);
close(fdd);
exit(EXIT_SUCCESS);