From 5a7d91e1917dfb02f290e6bc06634eb1cabaf385 Mon Sep 17 00:00:00 2001
From: Dor Laor <dor@cloudius-systems.com>
Date: Mon, 11 Feb 2013 10:33:32 +0200
Subject: [PATCH] Conduct further IO to vblk by looping over 100 pwrite/read
requests and verify their content. The image is been run over but the content
is restored after each write
---
tests/tst-vblk.c | 56 ++++++++++++++++++++++++++++++++----------------
1 file changed, 37 insertions(+), 19 deletions(-)
diff --git a/tests/tst-vblk.c b/tests/tst-vblk.c
index 9dea0a92b..73eb6d6a6 100644
--- a/tests/tst-vblk.c
+++ b/tests/tst-vblk.c
@@ -10,35 +10,53 @@
int main(int argc, char **argv)
{
int fd;
- char *wbuf,*rbuf;
+ char *wbuf,*rbuf,*origin;
+ int i;
- // malloc is used since virt_to_phys doesn't work
- // on stack addresses and virtio needs that
- wbuf = malloc(BUF_SIZE);
- rbuf = malloc(BUF_SIZE);
+ // malloc is used since virt_to_phys doesn't work
+ // on stack addresses and virtio needs that
+ wbuf = malloc(BUF_SIZE);
+ rbuf = malloc(BUF_SIZE);
+ origin = malloc(BUF_SIZE); //preserves the prev content for next boot..
- fd = open("/dev/vblk0", O_RDWR);
+ fd = open("/dev/vblk0", O_RDWR);
if (fd < 0) {
perror("open");
return 1;
}
- memset(wbuf, 0xab, BUF_SIZE);
- if (pwrite(fd, wbuf, BUF_SIZE, 0) != BUF_SIZE) {
- perror("pwrite");
- return 1;
- }
+ for (i=0;i<100;i++) {
+
+ if (pread(fd, origin, BUF_SIZE, i) != BUF_SIZE) {
+ perror("pread, origin");
+ return 1;
+ }
+
+ memset(wbuf, i, BUF_SIZE);
+ if (pwrite(fd, wbuf, BUF_SIZE, i) != BUF_SIZE) {
+ perror("pwrite");
+ return 1;
+ }
+
+ memset(rbuf, i, BUF_SIZE);
+ if (pread(fd, rbuf, BUF_SIZE, i) != BUF_SIZE) {
+ perror("pread");
+ return 1;
+ }
+ if (memcmp(wbuf, wbuf, BUF_SIZE) != 0) {
+ fprintf(stderr, "read error %i\n", i);
+ return 1;
+ }
+
+ if (pwrite(fd, origin, BUF_SIZE, i) != BUF_SIZE) {
+ perror("pwrite origin");
+ return 1;
+ }
- memset(rbuf, 0, BUF_SIZE);
- if (pread(fd, rbuf, BUF_SIZE, 0) != BUF_SIZE) {
- perror("pwrite");
- return 1;
- }
- if (memcmp(wbuf, wbuf, BUF_SIZE) != 0) {
- fprintf(stderr, "read error\n");
- return 1;
}
+ fprintf(stdout, "vblk test passed\n");
+
close(fd);
return 0;
}
--
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