/*
* Copyright (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
+ *
+ * Copyright (c) 2012, Whamcloud, Inc.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
#include <netdb.h>
#include <string.h>
#include <sys/wait.h>
+#include <sys/time.h>
char *dir = NULL, *dir2 = NULL;
long page_size;
char mmap_sanity[256];
-
static void usage(void)
{
printf("Usage: mmap_sanity -d dir [-m dir2]\n");
child = fork();
if (child < 0)
- return errno;
+ return -errno;
else if (child)
return 0;
if (dir2 != NULL) {
rc = remote_tst(tc, dir2);
} else {
- rc = EINVAL;
+ rc = -EINVAL;
fprintf(stderr, "invalid argument!\n");
}
_exit(rc);
{
char buf[1024], *file;
int fdr, fdw, count, rc = 0;
-
+
page_size = sysconf(_SC_PAGESIZE);
if (page_size == -1) {
perror("sysconf(_SC_PAGESIZE)");
- return errno;
+ return -errno;
}
/* copy myself to lustre for another client */
fdr = open(myself, O_RDONLY);
if (fdr < 0) {
perror(myself);
- return EINVAL;
+ return -EINVAL;
}
file = strrchr(myself, '/');
if (file == NULL) {
fprintf(stderr, "can't get test filename\n");
close(fdr);
- return EINVAL;
+ return -EINVAL;
}
file++;
sprintf(mmap_sanity, "%s/%s", dir, file);
if (fdw < 0) {
perror(mmap_sanity);
close(fdr);
- return EINVAL;
+ return -EINVAL;
}
while ((count = read(fdr, buf, sizeof(buf))) != 0) {
int writes;
if (count < 0) {
perror("read()");
- rc = errno;
+ rc = -errno;
break;
}
writes = write(fdw, buf, count);
if (writes != count) {
perror("write()");
- rc = errno;
+ rc = -errno;
break;
}
}
region = page_size * 10;
sprintf(mmap_file, "%s/%s", mnt, "mmap_file1");
-
+
if (unlink(mmap_file) && errno != ENOENT) {
perror("unlink()");
- return errno;
+ return -errno;
}
fd = open(mmap_file, O_CREAT|O_RDWR, 0600);
if (fd < 0) {
perror(mmap_file);
- return errno;
+ return -errno;
}
if (ftruncate(fd, region) < 0) {
perror("ftruncate()");
- rc = errno;
+ rc = -errno;
goto out_close;
}
ptr = mmap(NULL, region, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0);
if (ptr == MAP_FAILED) {
perror("mmap()");
- rc = errno;
+ rc = -errno;
goto out_close;
}
memset(ptr, 'a', region);
if (unlink(mmap_file) && errno != ENOENT) {
perror("unlink()");
- return errno;
+ return -errno;
}
fd = open(mmap_file, O_CREAT|O_RDWR, 0600);
if (fd < 0) {
perror(mmap_file);
- return errno;
+ return -errno;
}
if (ftruncate(fd, page_size) < 0) {
perror("ftruncate()");
- rc = errno;
+ rc = -errno;
goto out_close;
}
ptr = mmap(NULL, page_size, PROT_READ|PROT_WRITE, MAP_PRIVATE, fd, 0);
if (ptr == MAP_FAILED) {
perror("mmap()");
- rc = errno;
+ rc = -errno;
goto out_close;
}
memcpy(ptr, "blah", strlen("blah"));
out_close:
close(fd);
if (rc)
- return rc;
+ return -rc;
fd = open(mmap_file, O_RDONLY);
if (fd < 0) {
perror(mmap_file);
- return errno;
+ return -errno;
}
rc = read(fd, buf, sizeof(buf));
if (rc < 0) {
perror("read()");
- rc = errno;
+ rc = -errno;
goto out_close;
}
rc = 0;
-
+
if (strncmp("blah", buf, strlen("blah")) == 0) {
fprintf(stderr, "mmap write back with MAP_PRIVATE!\n");
- rc = EFAULT;
+ rc = -EFAULT;
}
close(fd);
unlink(mmap_file);
region = page_size * 100;
sprintf(mmap_file, "%s/%s", mnt, "mmap_file3");
-
+
if (unlink(mmap_file) && errno != ENOENT) {
perror("unlink()");
- return errno;
+ return -errno;
}
fd = open(mmap_file, O_CREAT|O_RDWR, 0600);
if (fd < 0) {
perror(mmap_file);
- return errno;
+ return -errno;
}
if (ftruncate(fd, region) < 0) {
perror("ftruncate()");
- rc = errno;
+ rc = -errno;
goto out_close;
}
ptr = mmap(NULL, region, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0);
if (ptr == MAP_FAILED) {
perror("mmap()");
- rc = errno;
+ rc = -errno;
goto out_close;
}
rc = mmap_run(3);
if (rc)
goto out_unmap;
-
+
memset(ptr, 'a', region);
sleep(2); /* wait for remote test finish */
out_unmap:
close(fd);
unlink(mmap_file);
return rc;
-}
+}
static int remote_tst3(char *mnt)
{
fd = open(mmap_file, O_RDWR, 0600);
if (fd < 0) {
perror(mmap_file);
- return errno;
+ return -errno;
}
ptr = mmap(NULL, region, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0);
if (ptr == MAP_FAILED) {
perror("mmap()");
- rc = errno;
+ rc = -errno;
goto out_close;
}
memset(ptr, 'b', region);
memset(ptr, 'c', region);
-
+
munmap(ptr, region);
out_close:
close(fd);
if (unlink(filea) && errno != ENOENT) {
perror("unlink()");
- return errno;
+ return -errno;
}
if (unlink(fileb) && errno != ENOENT) {
perror("unlink()");
- return errno;
+ return -errno;
}
fdr = fdw = -1;
fdr = open(fileb, O_CREAT|O_RDWR, 0600);
if (fdr < 0) {
perror(fileb);
- return errno;
+ return -errno;
}
if (ftruncate(fdr, region) < 0) {
perror("ftruncate()");
- rc = errno;
+ rc = -errno;
goto out_close;
}
fdw = open(filea, O_CREAT|O_RDWR, 0600);
if (fdw < 0) {
perror(filea);
- rc = errno;
+ rc = -errno;
goto out_close;
}
if (ftruncate(fdw, region) < 0) {
perror("ftruncate()");
- rc = errno;
+ rc = -errno;
goto out_close;
}
-
+
ptr = mmap(NULL, region, PROT_READ|PROT_WRITE, MAP_SHARED, fdr, 0);
if (ptr == MAP_FAILED) {
perror("mmap()");
- rc = errno;
+ rc = -errno;
goto out_close;
}
rc = mmap_run(4);
if (rc)
goto out_unmap;
-
+
memset(ptr, '1', region);
-
+
rc = write(fdw, ptr, region);
if (rc <= 0) {
perror("write()");
- rc = errno;
+ rc = -errno;
} else
rc = 0;
fdr = open(filea, O_RDWR, 0600);
if (fdr < 0) {
perror(filea);
- return errno;
+ return -errno;
}
fdw = open(fileb, O_RDWR, 0600);
if (fdw < 0) {
perror(fileb);
- rc = errno;
+ rc = -errno;
goto out_close;
}
ptr = mmap(NULL, region, PROT_READ|PROT_WRITE, MAP_SHARED, fdr, 0);
if (ptr == MAP_FAILED) {
perror("mmap()");
- rc = errno;
+ rc = -errno;
goto out_close;
}
rc = write(fdw, ptr, region);
if (rc <= 0) {
perror("write()");
- rc = errno;
+ rc = -errno;
} else
rc = 0;
-
+
munmap(ptr, region);
out_close:
if (fdr >= 0)
child = fork();
if (child < 0)
- return errno;
+ return -errno;
else if (child) {
int status;
rc = waitpid(child, &status, WNOHANG);
}
if (prefix)
- sprintf(cmd, "ls /proc/fs/lustre/ldlm/namespaces/*-%s-*/lru_size", prefix);
+ sprintf(cmd,
+ "ls /proc/fs/lustre/ldlm/namespaces/*-%s-*/lru_size",
+ prefix);
else
sprintf(cmd, "ls /proc/fs/lustre/ldlm/namespaces/*/lru_size");
file = popen(cmd, "r");
if (file == NULL) {
perror("popen()");
- return errno;
+ return -errno;
}
while (fgets(line, len, file)) {
f = fopen(line, "w");
if (f == NULL) {
perror("fopen()");
- rc = errno;
+ rc = -errno;
break;
}
rc = fwrite("clear", strlen("clear") + 1, 1, f);
if (rc < 1) {
perror("fwrite()");
- rc = errno;
+ rc = -errno;
fclose(f);
break;
}
if (unlink(mmap_file) && errno != ENOENT) {
perror("unlink()");
- return errno;
+ return -errno;
}
fd = open(mmap_file, O_CREAT|O_RDWR, 0600);
if (fd < 0) {
perror(mmap_file);
- return errno;
+ return -errno;
}
if (ftruncate(fd, region) < 0) {
perror("ftruncate()");
- rc = errno;
+ rc = -errno;
goto out_close;
}
ptr = mmap(NULL, region, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0);
if (ptr == MAP_FAILED) {
perror("mmap()");
- rc = errno;
+ rc = -errno;
goto out_close;
}
memset(ptr, 'a', region);
rc = read(fd, ptr + off, off * 2);
if (rc != off * 2) {
perror("read()");
- rc = errno;
+ rc = -errno;
goto out_unmap;
}
rc = write(fd, ptr + off, off * 2);
if (rc != off * 2) {
perror("write()");
- rc = errno;
+ rc = -errno;
}
rc = 0;
out_unmap:
sprintf(mmap_file2, "%s/%s", dir2, "mmap_file6");
if (unlink(mmap_file) && errno != ENOENT) {
perror("unlink()");
- return errno;
+ return -errno;
}
fd = open(mmap_file, O_CREAT|O_RDWR, 0600);
if (fd < 0) {
perror(mmap_file);
- return errno;
+ return -errno;
}
if (ftruncate(fd, page_size) < 0) {
perror("ftruncate()");
- rc = errno;
+ rc = -errno;
goto out;
}
fd2 = open(mmap_file2, O_RDWR, 0600);
if (fd2 < 0) {
perror(mmap_file2);
+ rc = -errno;
goto out;
}
ptr = mmap(NULL, page_size, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0);
if (ptr == MAP_FAILED) {
perror("mmap()");
- rc = errno;
+ rc = -errno;
goto out;
}
-
+
ptr2 = mmap(NULL, page_size, PROT_READ|PROT_WRITE, MAP_SHARED, fd2, 0);
if (ptr2 == MAP_FAILED) {
perror("mmap()");
- rc = errno;
+ rc = -errno;
goto out;
}
memcpy(ptr, "blah", strlen("blah"));
if (strncmp(ptr, ptr2, strlen("blah"))) {
fprintf(stderr, "client2 mmap mismatch!\n");
- rc = EFAULT;
+ rc = -EFAULT;
goto out;
}
memcpy(ptr2, "foo", strlen("foo"));
if (strncmp(ptr, ptr2, strlen("foo"))) {
fprintf(stderr, "client1 mmap mismatch!\n");
- rc = EFAULT;
+ rc = -EFAULT;
}
out:
if (ptr2)
int fd = -1;
int rc = 0;
- if (snprintf(fname, 256, "%s/mmap_tst7.%s",
- mnt, (rw == 0) ? "read":"write") >= 256) {
+ if (snprintf(fname, 256, "%s/mmap_tst7.%s", mnt,
+ (rw == 0) ? "read" : "write") >= 256) {
fprintf(stderr, "dir name too long\n");
- rc = ENAMETOOLONG;
+ rc = -ENAMETOOLONG;
goto out;
}
fd = open(fname, O_RDWR | O_DIRECT | O_CREAT, 0644);
if (fd == -1) {
perror("open");
- rc = errno;
+ rc = -errno;
goto out;
}
if (ftruncate(fd, 2 * page_size) == -1) {
perror("truncate");
- rc = errno;
+ rc = -errno;
goto out;
}
- buf = mmap(NULL, page_size,
+ buf = mmap(NULL, page_size * 2,
PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
if (buf == MAP_FAILED) {
perror("mmap");
- rc = errno;
+ rc = -errno;
goto out;
}
/* ensure the second page isn't mapped */
munmap(buf + page_size, page_size);
bytes = (rw == 0) ? read(fd, buf, 2 * page_size) :
- write(fd, buf, 2 * page_size);
+ write(fd, buf, 2 * page_size);
/* Expected behavior */
if (bytes == page_size)
goto out;
+
fprintf(stderr, "%s returned %zd, errno = %d\n",
- (rw == 0)?"read":"write", bytes, errno);
- rc = EIO;
+ (rw == 0) ? "read" : "write", bytes, errno);
+ rc = -EIO;
out:
if (buf != MAP_FAILED)
munmap(buf, page_size);
return rc;
}
+static int mmap_tst8(char *mnt)
+{
+ char fname[256];
+ char *buf = MAP_FAILED;
+ int fd = -1;
+ int rc = 0;
+ pid_t pid;
+ char xyz[page_size * 2];
+
+ if (snprintf(fname, 256, "%s/mmap_tst8", mnt) >= 256) {
+ fprintf(stderr, "dir name too long\n");
+ rc = -ENAMETOOLONG;
+ goto out;
+ }
+ fd = open(fname, O_RDWR | O_CREAT, 0644);
+ if (fd == -1) {
+ perror("open");
+ rc = -errno;
+ goto out;
+ }
+ if (ftruncate(fd, page_size) == -1) {
+ perror("truncate");
+ rc = -errno;
+ goto out;
+ }
+ buf = mmap(NULL, page_size * 2,
+ PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
+ if (buf == MAP_FAILED) {
+ perror("mmap");
+ rc = -errno;
+ goto out;
+ }
+
+ pid = fork();
+ if (pid == 0) { /* child */
+ memcpy(xyz, buf, page_size * 2);
+ /* shouldn't reach here. */
+ exit(0);
+ } else if (pid > 0) { /* parent */
+ int status = 0;
+ pid = waitpid(pid, &status, 0);
+ if (pid < 0) {
+ perror("wait");
+ rc = -errno;
+ goto out;
+ }
+
+ rc = -EFAULT;
+ if (WIFSIGNALED(status) && SIGBUS == WTERMSIG(status))
+ rc = 0;
+ } else {
+ perror("fork");
+ rc = -errno;
+ }
+
+out:
+ if (buf != MAP_FAILED)
+ munmap(buf, page_size);
+ if (fd != -1)
+ close(fd);
+ return rc;
+}
+
static int remote_tst(int tc, char *mnt)
{
int rc = 0;
- switch(tc) {
+ switch (tc) {
case 3:
rc = remote_tst3(mnt);
break;
break;
default:
fprintf(stderr, "wrong test case number %d\n", tc);
- rc = EINVAL;
+ rc = -EINVAL;
break;
}
return rc;
}
-
+
struct test_case {
int tc; /* test case number */
char *desc; /* test description */
- int (* test_fn)(char *mnt); /* test function */
+ int (*test_fn)(char *mnt); /* test function */
int node_cnt; /* node count */
};
{ 1, "mmap test1: basic mmap operation", mmap_tst1, 1 },
{ 2, "mmap test2: MAP_PRIVATE not write back", mmap_tst2, 1 },
{ 3, "mmap test3: concurrent mmap ops on two nodes", mmap_tst3, 2 },
- { 4, "mmap test4: c1 write to f1 from mmapped f2, "
+ { 4, "mmap test4: c1 write to f1 from mmapped f2, "
"c2 write to f1 from mmapped f1", mmap_tst4, 2 },
{ 5, "mmap test5: read/write file to/from the buffer "
"which mmapped to just this file", mmap_tst5, 1 },
- { 6, "mmap test6: check mmap write/read content on two nodes",
+ { 6, "mmap test6: check mmap write/read content on two nodes",
mmap_tst6, 2 },
{ 7, "mmap test7: file i/o with an unmapped buffer", mmap_tst7, 1},
+ { 8, "mmap test8: SIGBUS for beyond file size", mmap_tst8, 1},
{ 0, NULL, 0, 0 }
};
int main(int argc, char **argv)
{
- extern char *optarg;
struct test_case *test;
int c, rc = 0;
- for(;;) {
- c = getopt(argc, argv, "d:m:");
- if ( c == -1 )
+ while ((c = getopt(argc, argv, "d:m:")) != -1) {
+ switch (c) {
+ case 'd':
+ dir = optarg;
+ break;
+ case 'm':
+ dir2 = optarg;
+ break;
+ default:
+ usage();
break;
-
- switch(c) {
- case 'd':
- dir = optarg;
- break;
- case 'm':
- dir2 = optarg;
- break;
- default:
- case '?':
- usage();
- break;
}
}
if (mmap_initialize(argv[0]) != 0) {
fprintf(stderr, "mmap_initialize failed!\n");
- return EINVAL;
+ return -EINVAL;
}
for (test = tests; test->tc; test++) {
- char *rs = "skip";
- rc = 0;
+ double duration;
+ char *rs;
+
if (test->node_cnt == 1 || dir2 != NULL) {
+ struct timeval start, end;
+
+ gettimeofday(&start, NULL);
rc = test->test_fn(dir);
- rs = rc ? "fail" : "pass";
+ gettimeofday(&end, NULL);
+
+ duration = (double)(end.tv_sec - start.tv_sec) +
+ (double)(end.tv_usec - start.tv_usec) / 1000000;
+ rs = rc ? "FAIL" : "PASS";
+ } else {
+ duration = 0.0;
+ rs = "SKIP";
}
- fprintf(stderr, "%s (%s)\n", test->desc, rs);
+ fprintf(stderr, "%s (%s, %.5gs)\n", test->desc, rs, duration);
if (rc)
break;
}
mmap_finalize();
- return rc;
+ return -rc;
}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff