Viewing: fsx.c
/*
* Copyright (C) 1991, NeXT Computer, Inc. All Rights Reserverd.
* Copyright (c) 1998-2001 Apple Computer, Inc. All rights reserved.
*
* Copyright (c) 2012, Intel Corporation.
*
* @APPLE_LICENSE_HEADER_START@
*
* The contents of this file constitute Original Code as defined in and
* are subject to the Apple Public Source License Version 1.1 (the
* "License"). You may not use this file except in compliance with the
* License. Please obtain a copy of the License at
* http://www.apple.com/publicsource and read it before using this file.
*
* This Original Code and all software distributed under the License are
* distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
* License for the specific language governing rights and limitations
* under the License.
*
* @APPLE_LICENSE_HEADER_END@
*
* File: fsx.c
* Author: Avadis Tevanian, Jr.
*
* File system exerciser.
*
* Rewrite and enhancements 1998-2001 Conrad Minshall -- conrad@mac.com
*
* Various features from Joe Sokol, Pat Dirks, and Clark Warner.
*
* Small changes to work under Linux -- davej.
*
* Sundry porting patches from Guy Harris 12/2001
* $FreeBSD: src/tools/regression/fsx/fsx.c,v 1.1 2001/12/20 04:15:57 jkh Exp $
*
* Checks for mmap last-page zero fill.
*
* Add multi-file testing feature -- Zach Brown <zab@clusterfs.com>
*
* Add random preallocation calls - Eric Sandeen <sandeen@redhat.com>
*
* $FreeBSD: src/tools/regression/fsx/fsx.c,v 1.2 2003/04/23 23:42:23 jkh Exp $
* $DragonFly: src/test/stress/fsx/fsx.c,v 1.2 2005/05/02 19:31:56 dillon Exp $
*/
#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#endif
#include <sys/types.h>
#include <sys/stat.h>
#if defined(_UWIN) || defined(__linux__)
# include <sys/param.h>
# include <limits.h>
# include <time.h>
# include <strings.h>
#endif
#include <sys/time.h>
#include <fcntl.h>
#include <sys/mman.h>
#ifndef MAP_FILE
# define MAP_FILE 0
#endif
#include <limits.h>
#include <signal.h>
#include <stdio.h>
#include <stddef.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <stdarg.h>
#include <errno.h>
#include <libcfs/util/string.h>
#include <setjmp.h>
#include <linux/lustre/lustre_idl.h>
#include <lustre/lustreapi.h>
/*
* Each test run will work with one or more separate file descriptors for the
* same file. This allows testing cache coherency across multiple mountpoints
* of the same network filesystem on a single client.
*/
struct test_file {
char *path;
int fd;
int o_direct;
} *test_files = NULL, *tf;
int num_test_files;
enum fd_iteration_policy {
FD_SINGLE,
FD_ROTATE,
FD_RANDOM,
};
int fd_policy = FD_RANDOM;
int fd_last;
/*
* A log entry is an operation and a bunch of arguments.
*/
struct log_entry {
int operation;
int args[3];
struct timeval tv;
const struct test_file *tf;
};
#define LOGSIZE 100000
struct log_entry oplog[LOGSIZE]; /* the log */
int logptr; /* current position in log */
int logcount; /* total ops */
int jmpbuf_good;
jmp_buf jmpbuf;
unsigned int mirror_ids[LUSTRE_MIRROR_COUNT_MAX];
/*
* Define operations
*/
/* common operations */
#define OP_READ 0
#define OP_WRITE 1
#define OP_MAPREAD 2
#define OP_MAPWRITE 3
#define OP_MAX_LITE 4
/* !lite operations */
#define OP_TRUNCATE 4
#define OP_FALLOCATE 5
#define OP_PUNCH_HOLE 6
#define OP_ZERO_RANGE 7
#define OP_CLOSEOPEN 8
#define OP_MIRROR_OPS 9
#define OP_MAX_FULL 10
#define MIRROR_EXTEND 0
#define MIRROR_SPLIT 1
#define MIRROR_RESYNC 2
#define MIRROR_OPS 3
char *mirror_op_str[] = {
[MIRROR_EXTEND] = "MIRROR_EXTEND",
[MIRROR_SPLIT] = "MIRROR_SPLIT",
[MIRROR_RESYNC] = "MIRROR_RESYNC",
};
#define OP_SKIPPED 101
#define OP_DIRECT O_DIRECT
#ifndef FALLOC_FL_PUNCH_HOLE
#define FALLOC_FL_PUNCH_HOLE 0x02 /* de-allocates range */
#endif
#ifndef FALLOC_FL_KEEP_SIZE
#define FALLOC_FL_KEEP_SIZE 0x01 /* default is extend size */
#endif
#ifndef FALLOC_FL_ZERO_RANGE
#define FALLOC_FL_ZERO_RANGE 0x10 /* convert range to zeros */
#endif
char *original_buf; /* a pointer to the original data */
char *good_buf; /* a pointer to the correct data */
char *temp_buf; /* a pointer to the current data */
char *fname; /* name of our test file */
char logfile[PATH_MAX]; /* name of our log file */
char goodfile[PATH_MAX]; /* name of our test file */
struct timeval tv; /* time current operation started */
off_t file_size;
off_t biggest;
char state[256];
unsigned long testcalls; /* calls to function "test" */
long simulatedopcount; /* -b flag */
int closeprob; /* -c flag */
int debug ; /* -d flag */
long debugstart; /* -D flag */
int flush; /* -f flag */
int do_fsync; /* -y flag */
long maxfilelen = 256 * 1024; /* -l flag */
int sizechecks = 1; /* -n flag disables them */
int maxoplen = 64 * 1024; /* -o flag */
int quiet; /* -q flag */
long progressinterval; /* -p flag */
int readbdy = 1; /* -r flag */
int style; /* -s flag */
int truncbdy = 1; /* -t flag */
int writebdy = 1; /* -w flag */
long monitorstart = -1; /* -m flag */
long monitorend = -1; /* -m flag */
long flrmode; /* -M flag */
int lite; /* -L flag */
long numops = -1; /* -N flag */
int randomoplen = 1; /* -O flag disables it */
int seed = 1; /* -S flag */
int mapped_writes = 1; /* -W flag disables */
int fallocate_calls = 1; /* -F flag disables */
int punch_hole_calls = 1; /* -H flag disables */
int zero_range_calls = 1; /* -z flag disables */
int mapped_reads = 1; /* -R flag disables it */
int fsxgoodfd;
int o_direct; /* -Z */
int fl_keep_size;
int page_size;
int page_mask;
FILE *fsxlogf;
int badoff = -1;
static void
vwarnc(int code, const char *fmt, va_list ap)
{
fprintf(stderr, "fsx: ");
if (fmt) {
vfprintf(stderr, fmt, ap);
fprintf(stderr, ": ");
}
fprintf(stderr, "%s\n", strerror(code));
}
static void
__attribute__((format(__printf__, 1, 2)))
warn(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
vwarnc(errno, fmt, ap);
va_end(ap);
}
static void
__attribute__((format(__printf__, 1, 2)))
prt(char *fmt, ...)
{
va_list args;
va_start(args, fmt);
vfprintf(stdout, fmt, args);
va_end(args);
if (fsxlogf) {
va_start(args, fmt);
vfprintf(fsxlogf, fmt, args);
va_end(args);
}
}
/*
* prterr() is now a macro. It internally calls ptrerr_func()
* which transparently handles passing of function name.
* This version also keeps checkpatch happy.
*/
static void
ptrerr_func(const char *func, const char *prefix)
{
prt("%s: %s%s%s\n", func, prefix, prefix ? ": " : "", strerror(errno));
}
#define prterr(prefix) ptrerr_func(__func__, prefix)
static void
log4(int operation, int arg0, int arg1, int arg2)
{
struct log_entry *le;
le = &oplog[logptr];
le->operation = operation;
le->args[0] = arg0;
le->args[1] = arg1;
le->args[2] = arg2;
gettimeofday(&tv, NULL);
le->tv = tv;
le->tf = tf;
logptr++;
logcount++;
if (logptr >= LOGSIZE)
logptr = 0;
}
static const char *
fill_tf_buf(const struct test_file *tf)
{
static int max_tf_len;
static char tf_buf[32];
if (fd_policy == FD_SINGLE)
return "";
if (max_tf_len == 0)
max_tf_len = scnprintf(tf_buf, sizeof(tf_buf) - 1,
"%u", num_test_files - 1);
snprintf(tf_buf, sizeof(tf_buf), "[%0*lu]", max_tf_len,
(unsigned long)(tf - test_files));
return tf_buf;
}
static void
logdump(void)
{
int i, count, down;
struct log_entry *lp;
char *falloc_type[3] = {"PAST_EOF", "EXTENDING", "INTERIOR"};
prt("LOG DUMP (%d total operations):\n", logcount);
if (logcount < LOGSIZE) {
i = 0;
count = logcount;
} else {
i = logptr;
count = LOGSIZE;
}
for ( ; count > 0; count--) {
int opnum;
opnum = i + 1 + (logcount / LOGSIZE) * LOGSIZE;
lp = &oplog[i];
prt("%d%s: %lu.%06u ", opnum, fill_tf_buf(lp->tf),
lp->tv.tv_sec, (int)lp->tv.tv_usec);
switch (lp->operation) {
case OP_MAPREAD:
prt("MAPREAD 0x%05x thru 0x%05x (0x%05x bytes)",
lp->args[0], lp->args[0] + lp->args[1] - 1,
lp->args[1]);
if (badoff >= lp->args[0] && badoff <
lp->args[0] + lp->args[1])
prt("\t***RRRR***");
break;
case OP_MAPWRITE:
prt("MAPWRITE 0x%05x thru 0x%05x (0x%05x bytes)",
lp->args[0], lp->args[0] + lp->args[1] - 1,
lp->args[1]);
if (badoff >= lp->args[0] && badoff <
lp->args[0] + lp->args[1])
prt("\t******WWWW");
break;
case OP_READ:
case OP_READ + OP_DIRECT:
prt("READ%s 0x%05x thru 0x%05x (0x%05x bytes)",
lp->operation & OP_DIRECT ? "_OD" : " ",
lp->args[0], lp->args[0] + lp->args[1] - 1,
lp->args[1]);
if (badoff >= lp->args[0] &&
badoff < lp->args[0] + lp->args[1])
prt("\t***RRRR***");
break;
case OP_WRITE:
case OP_WRITE + OP_DIRECT:
prt("WRITE%s 0x%05x thru 0x%05x (0x%05x bytes)",
lp->operation & OP_DIRECT ? "_OD" : " ",
lp->args[0], lp->args[0] + lp->args[1] - 1,
lp->args[1]);
if (lp->args[0] > lp->args[2])
prt(" HOLE");
else if (lp->args[0] + lp->args[1] > lp->args[2])
prt(" EXTEND");
if ((badoff >= lp->args[0] || badoff >= lp->args[2]) &&
badoff < lp->args[0] + lp->args[1])
prt("\t***WWWW");
break;
case OP_TRUNCATE:
down = lp->args[0] < lp->args[1];
prt("TRUNC%s 0x%05x to 0x%05x",
down ? "_DN" : "_UP", lp->args[1], lp->args[0]);
if (badoff >= lp->args[!down] &&
badoff < lp->args[!!down])
prt("\t******TTTT");
break;
case OP_FALLOCATE:
/* 0: offset 1: length 2: where alloced */
prt("FALLOC 0x%05x thru 0x%05x\t(0x%05x bytes)%s",
lp->args[0], lp->args[0] + lp->args[1],
lp->args[1], falloc_type[lp->args[2]]);
if (badoff >= lp->args[0] &&
badoff < lp->args[0] + lp->args[1])
prt("\t******FFFF");
break;
case OP_PUNCH_HOLE:
prt("PUNCH 0x%05x thru 0x%05x\t(0x%05x bytes)",
lp->args[0], lp->args[0] + lp->args[1] - 1,
lp->args[1]);
if (badoff >= lp->args[0] && badoff <
lp->args[0] + lp->args[1])
prt("\t******PPPP");
break;
case OP_ZERO_RANGE:
prt("ZERO 0x%05x thru 0x%05x\t(0x%05x bytes)",
lp->args[0], lp->args[0] + lp->args[1] - 1,
lp->args[1]);
if (badoff >= lp->args[0] && badoff <
lp->args[0] + lp->args[1])
prt("\t******ZZZZ");
break;
case OP_CLOSEOPEN:
case OP_CLOSEOPEN + OP_DIRECT:
prt("CLOSE/OPEN%s",
lp->operation & OP_DIRECT ? "_OD" : " ");
break;
case OP_MIRROR_OPS: {
prt("%s ", mirror_op_str[lp->args[0]]);
if (lp->args[0] == MIRROR_EXTEND)
prt("to %d mirrors", lp->args[1] + 1);
else if (lp->args[0] == MIRROR_SPLIT)
prt("mirror %d to %d mirrors", lp->args[2],
lp->args[1] - 1);
else if (lp->args[0] == MIRROR_RESYNC)
prt("%d mirrors", lp->args[1]);
break;
}
case OP_SKIPPED:
prt("SKIPPED (no operation)");
break;
default:
prt("BOGUS LOG ENTRY (operation code = %d)!",
lp->operation);
}
prt("\n");
i++;
if (i == LOGSIZE)
i = 0;
}
}
static void
save_buffer(char *buffer, off_t bufferlength, int fd)
{
off_t ret;
ssize_t byteswritten;
if (fd <= 0 || bufferlength == 0)
return;
if (bufferlength > INT_MAX) {
prt("fsx flaw: overflow in %s\n", __func__);
exit(67);
}
if (lite) {
off_t size_by_seek = lseek(fd, (off_t)0, SEEK_END);
if (size_by_seek == (off_t)-1) {
prterr("lseek eof");
} else if (bufferlength > size_by_seek) {
warn("%s: .fsxgood file too short... will save 0x%llx bytes instead of 0x%llx\n",
__func__, (unsigned long long)size_by_seek,
(unsigned long long)bufferlength);
bufferlength = size_by_seek;
}
}
ret = lseek(fd, (off_t)0, SEEK_SET);
if (ret == (off_t)-1)
prterr("lseek 0");
byteswritten = write(fd, buffer, (size_t)bufferlength);
if (byteswritten != bufferlength) {
if (byteswritten == -1)
prterr("write");
else
warn("%s: short write, 0x%x bytes instead of 0x%llx\n",
__func__, (unsigned int)byteswritten,
(unsigned long long)bufferlength);
}
}
static void
report_failure(int status)
{
logdump();
prt("Using seed %d\n", seed);
if (fsxgoodfd) {
if (good_buf) {
save_buffer(good_buf, file_size, fsxgoodfd);
prt("Correct content saved for comparison\n");
prt("(maybe hexdump \"%s\" vs \"%s\")\n",
fname, goodfile);
}
close(fsxgoodfd);
}
exit(status);
}
#define short_at(cp) ((unsigned short)((*((unsigned char *)(cp)) << 8) | \
*(((unsigned char *)(cp)) + 1)))
static void
check_buffers(unsigned int offset, unsigned int size)
{
unsigned char c, t;
unsigned int i = 0;
unsigned int n = 0;
unsigned int op = 0;
unsigned int bad = 0;
if (memcmp(good_buf + offset, temp_buf, size) != 0) {
prt("READ BAD DATA: offset = 0x%x, size = 0x%x\n",
offset, size);
prt("OFFSET\tGOOD\tBAD\tRANGE\n");
while (size > 0) {
c = good_buf[offset];
t = temp_buf[i];
if (c != t) {
if (n == 0) {
bad = short_at(&temp_buf[i]);
prt("%#07x\t%#06x\t%#06x", offset,
short_at(&good_buf[offset]), bad);
op = temp_buf[offset & 1 ? i + 1 : i];
}
n++;
badoff = offset;
}
offset++;
i++;
size--;
}
if (n) {
prt("\t%#7x\n", n);
if (bad)
prt("operation# (mod 256) for the bad data may be %u\n",
((unsigned int)op & 0xff));
else
prt("operation# (mod 256) for the bad data unknown, check HOLE and EXTEND ops\n");
} else {
prt("????????????????\n");
}
report_failure(110);
}
}
static struct test_file *
get_tf(void)
{
unsigned int index = 0;
switch (fd_policy) {
case FD_ROTATE:
index = fd_last++;
break;
case FD_RANDOM:
index = random();
break;
case FD_SINGLE:
index = 0;
break;
default:
prt("unknown policy");
exit(1);
break;
}
return &test_files[index % num_test_files];
}
static void
assign_fd_policy(char *policy)
{
if (!strcmp(policy, "random")) {
fd_policy = FD_RANDOM;
} else if (!strcmp(policy, "rotate")) {
fd_policy = FD_ROTATE;
} else {
prt("unknown -I policy: '%s'\n", policy);
exit(1);
}
}
static int
get_fd(void)
{
struct test_file *tf = get_tf();
return tf->fd;
}
static const char *my_basename(const char *path)
{
const char *c = strrchr(path, '/');
return c ? c++ : path;
}
static void
open_test_files(char **argv, int argc)
{
struct test_file *tf;
int i;
num_test_files = argc;
if (num_test_files == 1)
fd_policy = FD_SINGLE;
test_files = calloc(num_test_files, sizeof(*test_files));
if (!test_files) {
prterr("reallocating space for test files");
exit(1);
}
for (i = 0, tf = test_files; i < num_test_files; i++, tf++) {
tf->path = argv[i];
tf->o_direct = (random() % (o_direct + 1)) ? OP_DIRECT : 0;
tf->fd = open(tf->path,
O_RDWR | (lite ? 0 : O_CREAT | O_TRUNC) |
tf->o_direct, 0666);
if (tf->fd < 0) {
prterr(tf->path);
exit(91);
}
}
if (quiet || fd_policy == FD_SINGLE)
return;
for (i = 0, tf = test_files; i < num_test_files; i++, tf++)
prt("fd %d: %s\n", i, tf->path);
}
static void
close_test_files(void)
{
int i;
struct test_file *tf;
for (i = 0, tf = test_files; i < num_test_files; i++, tf++) {
if (close(tf->fd)) {
prterr("close");
report_failure(99);
}
}
}
static void
check_size(void)
{
struct stat statbuf;
off_t size_by_seek;
int fd = get_fd();
if (fstat(fd, &statbuf)) {
prterr("fstat");
statbuf.st_size = -1;
}
size_by_seek = lseek(fd, (off_t)0, SEEK_END);
if (file_size != statbuf.st_size || file_size != size_by_seek) {
prt("Size error: expected 0x%llx stat 0x%llx seek 0x%llx\n",
(unsigned long long)file_size,
(unsigned long long)statbuf.st_size,
(unsigned long long)size_by_seek);
report_failure(120);
}
}
static void
check_trunc_hack(void)
{
struct stat statbuf;
int fd = get_fd();
/* should not ignore ftruncate(2)'s return value */
if (ftruncate(fd, (off_t)0) < 0) {
prterr("trunc_hack: ftruncate(0)");
exit(1);
}
if (ftruncate(fd, (off_t)100000) < 0) {
prterr("trunc_hack: ftruncate(100000)");
exit(1);
}
if (fstat(fd, &statbuf)) {
prterr("trunc_hack: fstat");
statbuf.st_size = -1;
}
if (statbuf.st_size != (off_t)100000) {
prt("no extend on truncate! not posix!\n");
exit(130);
}
if (ftruncate(fd, 0) < 0) {
prterr("trunc_hack: ftruncate(0) (2nd call)");
exit(1);
}
}
static void
output_line(struct test_file *tf, int op, unsigned int offset,
unsigned int size)
{
char *ops[] = {
[OP_READ] = "read",
[OP_WRITE] = "write",
[OP_TRUNCATE] = "trunc from",
[OP_MAPREAD] = "mapread",
[OP_MAPWRITE] = "mapwrite",
[OP_READ + OP_DIRECT] = "read_OD",
[OP_WRITE + OP_DIRECT] = "write_OD",
[OP_FALLOCATE] = "fallocate",
[OP_PUNCH_HOLE] = "punch from",
};
/* W. */
if (!(!quiet &&
((progressinterval && testcalls % progressinterval == 0) ||
(debug && (monitorstart == -1 ||
(offset + size > monitorstart &&
(monitorend == -1 || offset <= monitorend)))))))
return;
prt("%06lu%s %lu.%06u %-10s %#08x %s %#08x\t(0x%x bytes)\n",
testcalls, fill_tf_buf(tf), tv.tv_sec, (int)tv.tv_usec,
ops[op], offset, op == OP_TRUNCATE || op == OP_PUNCH_HOLE ?
" to " : "thru", offset + size - 1,
(int)size < 0 ? -(int)size : size);
}
static void
mirror_output_line(struct test_file *tf, int op, int mirrors, int id)
{
if (!(!quiet &&
((progressinterval && testcalls % progressinterval == 0) ||
(debug && (monitorstart == -1)))))
return;
prt("%06lu %lu.%06u %-10s ",
testcalls, tv.tv_sec, (int)tv.tv_usec, mirror_op_str[op]);
switch (op) {
case MIRROR_EXTEND:
prt("to %d mirrors\n", mirrors + 1);
break;
case MIRROR_SPLIT:
prt("mirror %d to %d mirrors\n", id, mirrors - 1);
break;
case MIRROR_RESYNC:
prt("%d mirrors\n", mirrors);
break;
}
}
static void output_debug(unsigned int offset, unsigned int size,
const char *what)
{
struct timeval t;
if (!quiet && (debug > 1 && (monitorstart == -1 ||
(offset + size >= monitorstart &&
(monitorend == -1 || offset <= monitorend))))) {
gettimeofday(&t, NULL);
prt(" %lu.%06u %s\n", t.tv_sec, (int)t.tv_usec, what);
}
}
static void
doflush(unsigned int offset, unsigned int size)
{
unsigned int pg_offset;
unsigned int map_size;
char *p;
struct test_file *tf = get_tf();
int fd = tf->fd;
if (tf->o_direct)
return;
pg_offset = offset & page_mask;
map_size = pg_offset + size;
p = (char *)mmap(0, map_size, PROT_READ | PROT_WRITE,
MAP_FILE | MAP_SHARED, fd,
(off_t)(offset - pg_offset));
if (p == (char *)-1) {
prterr("mmap");
report_failure(202);
}
if (msync(p, map_size, MS_INVALIDATE) != 0) {
prterr("msync");
report_failure(203);
}
if (munmap(p, map_size) != 0) {
prterr("munmap");
report_failure(204);
}
output_debug(offset, size, "flush done");
}
static void
doread(unsigned int offset, unsigned int size)
{
off_t ret;
unsigned int iret;
struct test_file *tf = get_tf();
int fd = tf->fd;
offset -= offset % readbdy;
if (tf->o_direct)
size -= size % readbdy;
if (size == 0) {
if (!quiet && testcalls > simulatedopcount && !tf->o_direct)
prt("skipping zero size read\n");
log4(OP_SKIPPED, OP_READ, offset, size);
return;
}
if (size + offset > file_size) {
if (!quiet && testcalls > simulatedopcount)
prt("skipping seek/read past end of file\n");
log4(OP_SKIPPED, OP_READ, offset, size);
return;
}
log4(OP_READ + tf->o_direct, offset, size, 0);
if (testcalls <= simulatedopcount)
return;
output_line(tf, OP_READ + tf->o_direct, offset, size);
ret = lseek(fd, (off_t)offset, SEEK_SET);
if (ret == (off_t)-1) {
prterr("lseek");
report_failure(140);
}
iret = read(fd, temp_buf, size);
output_debug(offset, size, "read done");
if (iret != size) {
if (iret == -1)
prterr("read");
else
prt("short read: 0x%x bytes instead of 0x%x\n",
iret, size);
report_failure(141);
}
check_buffers(offset, size);
}
static void
check_eofpage(char *s, unsigned int offset, char *p, int size)
{
long last_page, should_be_zero;
if (offset + size <= (file_size & ~page_mask))
return;
/*
* we landed in the last page of the file
* test to make sure the VM system provided 0's
* beyond the true end of the file mapping
* (as required by mmap def in 1996 posix 1003.1)
*/
last_page = ((long)p + (offset & page_mask) + size) & ~page_mask;
for (should_be_zero = last_page + (file_size & page_mask);
should_be_zero < last_page + page_size;
should_be_zero++)
if (*(char *)should_be_zero) {
prt("Mapped %s: non-zero data past EOF (0x%llx) page offset 0x%lx is 0x%04x\n",
s, (long long)file_size - 1,
should_be_zero & page_mask,
short_at(should_be_zero));
report_failure(205);
}
}
static void
domapread(unsigned int offset, unsigned int size)
{
unsigned int pg_offset;
unsigned int map_size;
char *p;
int fd;
offset -= offset % readbdy;
tf = get_tf();
fd = tf->fd;
if (size == 0) {
if (!quiet && testcalls > simulatedopcount)
prt("skipping zero size read\n");
log4(OP_SKIPPED, OP_MAPREAD, offset, size);
return;
}
if (size + offset > file_size) {
if (!quiet && testcalls > simulatedopcount)
prt("skipping seek/read past end of file\n");
log4(OP_SKIPPED, OP_MAPREAD, offset, size);
return;
}
log4(OP_MAPREAD, offset, size, 0);
if (testcalls <= simulatedopcount)
return;
output_line(tf, OP_MAPREAD, offset, size);
pg_offset = offset & page_mask;
map_size = pg_offset + size;
p = mmap(0, map_size, PROT_READ, MAP_FILE | MAP_SHARED, fd,
(off_t)(offset - pg_offset));
if (p == MAP_FAILED) {
prterr("mmap");
report_failure(190);
}
output_debug(offset, size, "mmap done");
if (setjmp(jmpbuf) == 0) {
jmpbuf_good = 1;
memcpy(temp_buf, p + pg_offset, size);
check_eofpage("Read", offset, p, size);
jmpbuf_good = 0;
} else {
report_failure(1901);
}
output_debug(offset, size, "memcpy done");
if (munmap(p, map_size) != 0) {
prterr("munmap");
report_failure(191);
}
output_debug(offset, size, "munmap done");
check_buffers(offset, size);
}
static void
gendata(char *original_buf, char *good_buf, unsigned int offset,
unsigned int size)
{
while (size--) {
good_buf[offset] = testcalls % 256;
if (offset % 2)
good_buf[offset] += original_buf[offset];
offset++;
}
}
static void
dowrite(unsigned int offset, unsigned int size)
{
off_t ret;
unsigned int iret;
int fd;
tf = get_tf();
fd = tf->fd;
offset -= offset % writebdy;
if (tf->o_direct)
size -= size % writebdy;
if (size == 0) {
if (!quiet && testcalls > simulatedopcount && !tf->o_direct)
prt("skipping zero size write\n");
log4(OP_SKIPPED, OP_WRITE, offset, size);
return;
}
log4(OP_WRITE + tf->o_direct, offset, size, file_size);
gendata(original_buf, good_buf, offset, size);
if (file_size < offset + size) {
if (file_size < offset)
memset(good_buf + file_size, '\0', offset - file_size);
file_size = offset + size;
if (lite) {
warn("Lite file size bug in fsx!");
report_failure(149);
}
}
if (testcalls <= simulatedopcount)
return;
output_line(tf, OP_WRITE + tf->o_direct, offset, size);
ret = lseek(fd, (off_t)offset, SEEK_SET);
if (ret == (off_t)-1) {
prterr("lseek");
report_failure(150);
}
iret = write(fd, good_buf + offset, size);
output_debug(offset, size, "write done");
if (iret != size) {
if (iret == -1)
prterr("write");
else
prt("short write: 0x%x bytes instead of 0x%x\n",
iret, size);
report_failure(151);
}
if (do_fsync) {
if (fsync(fd)) {
prt("fsync() failed: %s\n", strerror(errno));
report_failure(152);
}
output_debug(offset, size, "fsync done");
}
if (flush) {
doflush(offset, size);
output_debug(offset, size, "flush done");
}
}
static void
domapwrite(unsigned int offset, unsigned int size)
{
unsigned int pg_offset;
unsigned int map_size;
off_t cur_filesize;
char *p;
int fd;
tf = get_tf();
fd = tf->fd;
offset -= offset % writebdy;
if (size == 0) {
if (!quiet && testcalls > simulatedopcount)
prt("skipping zero size write\n");
log4(OP_SKIPPED, OP_MAPWRITE, offset, size);
return;
}
cur_filesize = file_size;
log4(OP_MAPWRITE, offset, size, 0);
gendata(original_buf, good_buf, offset, size);
if (file_size < offset + size) {
if (file_size < offset)
memset(good_buf + file_size, '\0', offset - file_size);
file_size = offset + size;
if (lite) {
warn("Lite file size bug in fsx!");
report_failure(200);
}
}
if (testcalls <= simulatedopcount)
return;
output_line(tf, OP_MAPWRITE, offset, size);
if (file_size > cur_filesize) {
if (ftruncate(fd, file_size) == -1) {
prterr("ftruncate");
exit(201);
}
output_debug(offset, size, "truncate done");
}
pg_offset = offset & page_mask;
map_size = pg_offset + size;
p = mmap(0, map_size, PROT_READ | PROT_WRITE, MAP_FILE | MAP_SHARED,
fd, (off_t)(offset - pg_offset));
if (p == MAP_FAILED) {
prterr("mmap");
report_failure(202);
}
output_debug(offset, map_size, "mmap done");
if (setjmp(jmpbuf) == 0) {
jmpbuf_good = 1;
memcpy(p + pg_offset, good_buf + offset, size);
if (msync(p, map_size, MS_SYNC) != 0) {
prterr("msync");
report_failure(203);
}
check_eofpage("Write", offset, p, size);
jmpbuf_good = 0;
} else {
report_failure(2021);
}
output_debug(offset, map_size, "msync done");
if (munmap(p, map_size) != 0) {
prterr("munmap");
report_failure(204);
}
output_debug(offset, map_size, "munmap done");
}
static void
dotruncate(unsigned int size)
{
int oldsize = file_size;
int fd;
tf = get_tf();
fd = tf->fd;
size -= size % truncbdy;
if (size > biggest) {
biggest = size;
if (!quiet && testcalls > simulatedopcount)
prt("truncating to largest ever: 0x%x\n", size);
}
log4(OP_TRUNCATE, size, (unsigned int)file_size, 0);
if (size > file_size)
memset(good_buf + file_size, '\0', size - file_size);
file_size = size;
if (testcalls <= simulatedopcount)
return;
output_line(tf, OP_TRUNCATE, oldsize, size - oldsize);
if (ftruncate(fd, (off_t)size) == -1) {
prt("ftruncate: 0x%x\n", size);
prterr("ftruncate");
report_failure(160);
}
output_debug(size, 0, "truncate done");
}
static void
do_punch_hole(unsigned int offset, unsigned int length)
{
int max_offset = 0;
int max_len = 0;
int mode = FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE;
int fd;
tf = get_tf();
fd = tf->fd;
if (length == 0) {
if (!quiet && testcalls > simulatedopcount) {
prt("skipping zero length punch hole\n");
log4(OP_SKIPPED, OP_PUNCH_HOLE, offset, length);
}
return;
}
if (file_size <= (loff_t)offset) {
if (!quiet && testcalls > simulatedopcount) {
prt("skipping hole punch off the end of the file\n");
log4(OP_SKIPPED, OP_PUNCH_HOLE, offset, length);
}
return;
}
log4(OP_PUNCH_HOLE, offset, length, 0);
if (testcalls <= simulatedopcount)
return;
output_line(tf, OP_PUNCH_HOLE, offset, length);
if (fallocate(fd, mode, (loff_t)offset, (loff_t)length) == -1) {
prt("punch hole: %x to %x\n", offset, length);
prterr("fallocate");
report_failure(161);
}
output_debug(offset, length, "zero_range done");
max_offset = offset < file_size ? offset : file_size;
max_len = max_offset + length <= file_size ? length :
file_size - max_offset;
memset(good_buf + max_offset, '\0', max_len);
}
static void
do_zero_range(unsigned int offset, unsigned int length)
{
unsigned int end_offset;
int mode = FALLOC_FL_ZERO_RANGE;
int keep_size;
int fd;
tf = get_tf();
fd = tf->fd;
if (length == 0) {
if (!quiet && testcalls > simulatedopcount) {
prt("skipping zero length zero range\n");
log4(OP_SKIPPED, OP_ZERO_RANGE, offset, length);
}
return;
}
keep_size = random() % 2;
end_offset = keep_size ? 0 : offset + length;
if (end_offset > biggest) {
biggest = end_offset;
if (!quiet && testcalls > simulatedopcount)
prt("zero_range to largest ever: 0x%x\n", end_offset);
}
/*
* last arg matches fallocate string array index in logdump:
* 0: allocate past EOF
* 1: extending prealloc
* 2: interior prealloc
*/
log4(OP_ZERO_RANGE, offset, length,
(end_offset > file_size) ? (keep_size ? 0 : 1) : 2);
if (testcalls <= simulatedopcount)
return;
output_line(tf, OP_TRUNCATE, offset, length);
if (fallocate(fd, mode, (loff_t)offset, (loff_t)length) == -1) {
prt("pzero range: %x to %x\n", offset, length);
prterr("fallocate");
report_failure(161);
}
output_debug(offset, length, "zero_range done");
memset(good_buf + offset, '\0', length);
}
/*
* fallocate is basically a no-op unless extending,
* then a lot like a truncate
*/
static void
do_preallocate(unsigned int offset, unsigned int length)
{
off_t end_offset;
int keep_size;
int fd;
struct stat statbufs;
tf = get_tf();
fd = tf->fd;
if (length == 0) {
if (!quiet && testcalls > simulatedopcount)
prt("skipping zero length fallocate\n");
log4(OP_SKIPPED, OP_FALLOCATE, offset, length);
return;
}
keep_size = fl_keep_size && (random() % 2);
end_offset = offset + length;
if (end_offset > biggest) {
biggest = end_offset;
if (!quiet && testcalls > simulatedopcount)
prt("fallocating to largest ever: 0x%jx\n", end_offset);
}
/*
* last arg matches fallocate string array index in logdump:
* 0: allocate past EOF
* 1: extending prealloc
* 2: interior prealloc
*/
log4(OP_FALLOCATE, offset, length, (end_offset > file_size) ?
(keep_size ? 0 : 1) : 2);
if (end_offset > file_size && !keep_size) {
memset(good_buf + file_size, '\0', end_offset - file_size);
file_size = end_offset;
}
if (testcalls <= simulatedopcount)
return;
fstat(fd, &statbufs);
if (fallocate(fd, keep_size ? FALLOC_FL_KEEP_SIZE : 0, (loff_t)offset,
(loff_t)length) == -1) {
prt("fallocate: %x to %x\n", offset, length);
prterr("fallocate");
report_failure(161);
}
output_line(tf, OP_FALLOCATE, offset, length);
output_debug(offset, length, "fallocate done");
}
static void
writefileimage()
{
ssize_t iret;
int fd = get_fd();
if (lseek(fd, (off_t)0, SEEK_SET) == (off_t)-1) {
prterr("lseek");
report_failure(171);
}
iret = write(fd, good_buf, file_size);
if ((off_t)iret != file_size) {
if (iret == -1)
prterr("write");
else
prt("short write: 0x%lx bytes instead of 0x%llx\n",
(unsigned long)iret, (unsigned long long)file_size);
report_failure(172);
}
if (lite ? 0 : ftruncate(fd, file_size) == -1) {
prt("ftruncate2: %llx\n", (unsigned long long)file_size);
prterr("ftruncate");
report_failure(173);
}
}
static void
docloseopen(void)
{
int direct = 0;
const char *tf_num = "";
if (testcalls <= simulatedopcount)
return;
tf = get_tf();
direct = (random() % (o_direct + 1)) ? OP_DIRECT : 0;
log4(OP_CLOSEOPEN + direct, file_size, (unsigned int)file_size, 0);
if (fd_policy != FD_SINGLE)
tf_num = fill_tf_buf(tf);
if (debug)
prt("%06lu %lu.%06u %sclose/open%s\n", testcalls, tv.tv_sec,
(int)tv.tv_usec, tf_num, direct ? "(O_DIRECT)" : "");
if (close(tf->fd))
report_failure(180);
output_debug(monitorstart, 0, "close done");
tf->o_direct = direct;
tf->fd = open(tf->path, O_RDWR | tf->o_direct, 0);
if (tf->fd < 0) {
prterr(tf->o_direct ? "open(O_DIRECT)" : "open");
report_failure(181);
}
output_debug(monitorstart, 0,
tf->o_direct ? "open(O_DIRECT) done" : "open done");
}
static int
get_mirror_ids(int fd, unsigned int *ids)
{
struct llapi_layout *layout;
uint16_t count;
int rc;
layout = llapi_layout_get_by_fd(fd, 0);
if (layout == NULL)
return 0;
/* only get mirror count */
rc = llapi_layout_mirror_count_get(layout, &count);
if (rc < 0)
prt("llapi_layout_mirror_count_get: %d\n", rc);
if (count == 0)
return 0;
count = 0;
rc = llapi_layout_comp_use(layout, LLAPI_LAYOUT_COMP_USE_FIRST);
if (rc < 0) {
prt("llapi_layout_comp_use(USE_FIRST): %d\n", rc);
goto free;
}
do {
unsigned int id;
rc = llapi_layout_mirror_id_get(layout, &id);
if (rc < 0) {
prt("llapi_layout_mirror_id_get: %d\n", rc);
goto free;
}
if (!count || ids[count - 1] != id)
ids[count++] = id;
rc = llapi_layout_comp_use(layout, LLAPI_LAYOUT_COMP_USE_NEXT);
if (rc < 0) {
prt("llapi_layout_comp_use(USE_NEXT): %d\n", rc);
goto free;
}
} while (rc == 0);
free:
llapi_layout_free(layout);
return rc < 0 ? rc : count;
}
static void
do_mirror_ops(int op)
{
int mirror_count;
char cmd[PATH_MAX * 2];
int i = 0;
int rc;
if (testcalls <= simulatedopcount)
return;
tf = get_tf();
mirror_count = get_mirror_ids(tf->fd, mirror_ids);
if (mirror_count < 0) {
prterr("get_mirror_ids");
report_failure(182);
}
switch (op) {
case MIRROR_EXTEND:
if (mirror_count == LUSTRE_MIRROR_COUNT_DEF)
return;
snprintf(cmd, sizeof(cmd), "lfs mirror extend -N -c-1 %s",
tf->path);
break;
case MIRROR_SPLIT:
if (mirror_count == 0 || mirror_count == 1)
return;
i = random() % mirror_count;
if (i == 0)
i++;
snprintf(cmd, sizeof(cmd),
"lfs mirror split -d --mirror-id=%d %s",
mirror_ids[i], tf->path);
break;
case MIRROR_RESYNC:
if (mirror_count < 2)
return;
snprintf(cmd, sizeof(cmd),
"lfs mirror resync %s", tf->path);
break;
}
if (close(tf->fd))
report_failure(183);
output_debug(monitorstart, 0, "close done");
log4(OP_MIRROR_OPS, op, mirror_count, i);
mirror_output_line(tf, op, mirror_count, i);
rc = system(cmd);
if (rc < 0) {
prt("%s: %d\n", cmd, errno);
report_failure(184);
} else if (WIFEXITED(rc)) {
rc = WEXITSTATUS(rc);
if (rc > 0) {
prt("%s: %d\n", cmd, rc);
/* mirror split won't delete the last non-stale mirror,
* and returns EUCLEAN
*/
if (rc != EUCLEAN)
report_failure(184);
}
}
output_debug(monitorstart, 0, cmd);
switch (op) {
case MIRROR_SPLIT:
if (mirror_count == 2)
break;
case MIRROR_EXTEND:
case MIRROR_RESYNC:
/* verify mirror */
snprintf(cmd, sizeof(cmd),
"lfs mirror verify %s", tf->path);
rc = system(cmd);
if (rc < 0) {
prt("mirror op %d: %s: %d\n", op, cmd, errno);
report_failure(184);
} else if (WIFEXITED(rc)) {
rc = WEXITSTATUS(rc);
if (rc > 0) {
/* lfs mirror verify returns ESTALE (116)
* for stale mirrors, which is expected
* behavior. Other errors are real failures.
*/
if (rc == ESTALE) {
prt("mirror op %d: %s: %d\n", op, cmd,
rc);
snprintf(cmd, sizeof(cmd),
"lfs mirror verify -v %s",
tf->path);
rc = system(cmd);
} else {
prt("mirror op %d: %s: %d\n", op, cmd,
rc);
report_failure(184);
}
}
}
}
output_debug(monitorstart, 0, cmd);
tf->fd = open(tf->path, O_RDWR | tf->o_direct, 0);
if (tf->fd < 0) {
prterr(tf->o_direct ? "open(O_DIRECT)" : "open");
report_failure(185);
}
output_debug(monitorstart, 0,
tf->o_direct ? "open(O_DIRECT) done" : "open done");
}
#define TRIM_OFF_LEN(off, len, size) \
do { \
if (size) \
(off) %= (size); \
else \
(off) = 0; \
if ((off) + (len) > (size)) \
(len) = (size) - (off); \
} while (0)
static void
test(void)
{
unsigned long offset;
unsigned long size = maxoplen;
unsigned long rv = random();
unsigned long op;
int closeopen = 0;
if (simulatedopcount > 0 && testcalls == simulatedopcount)
writefileimage();
testcalls++;
if (closeprob)
closeopen = (rv >> 3) < (1 << 28) / closeprob;
if (debugstart > 0 && testcalls >= debugstart)
debug = 1;
if (!quiet && testcalls < simulatedopcount && testcalls % 100000 == 0)
prt("%lu...\n", testcalls);
offset = random();
if (randomoplen)
size = random() % (maxoplen + 1);
/* calculate appropriate op to run */
if (lite)
op = rv % OP_MAX_LITE;
else
op = rv % OP_MAX_FULL;
switch (op) {
case OP_MAPREAD:
if (!mapped_reads)
op = OP_READ;
break;
case OP_MAPWRITE:
if (!mapped_writes)
op = OP_WRITE;
break;
case OP_FALLOCATE:
if (!fallocate_calls) {
log4(OP_SKIPPED, OP_FALLOCATE, offset, size);
goto out;
}
break;
case OP_PUNCH_HOLE:
if (!punch_hole_calls) {
log4(OP_SKIPPED, OP_PUNCH_HOLE, offset, size);
goto out;
}
break;
case OP_ZERO_RANGE:
if (!zero_range_calls) {
log4(OP_SKIPPED, OP_ZERO_RANGE, offset, size);
goto out;
}
break;
}
switch (op) {
case OP_READ:
TRIM_OFF_LEN(offset, size, file_size);
doread(offset, size);
break;
case OP_WRITE:
TRIM_OFF_LEN(offset, size, maxfilelen);
dowrite(offset, size);
break;
case OP_MAPREAD:
TRIM_OFF_LEN(offset, size, file_size);
domapread(offset, size);
break;
case OP_MAPWRITE:
TRIM_OFF_LEN(offset, size, maxfilelen);
domapwrite(offset, size);
break;
case OP_TRUNCATE:
if (!style)
size = random() % maxfilelen;
dotruncate(size);
break;
case OP_FALLOCATE:
TRIM_OFF_LEN(offset, size, maxfilelen);
do_preallocate(offset, size);
break;
case OP_PUNCH_HOLE:
TRIM_OFF_LEN(offset, size, file_size);
do_punch_hole(offset, size);
break;
case OP_ZERO_RANGE:
TRIM_OFF_LEN(offset, size, file_size);
do_zero_range(offset, size);
break;
case OP_CLOSEOPEN:
if (closeopen)
docloseopen();
break;
case OP_MIRROR_OPS:
if (flrmode)
do_mirror_ops(random() % MIRROR_OPS);
break;
default:
prterr("unknown operation %d: Operation not supported");
report_failure(42);
break;
}
out:
if (sizechecks && testcalls > simulatedopcount)
check_size();
}
static void
segv(int sig)
{
if (jmpbuf_good) {
jmpbuf_good = 0;
longjmp(jmpbuf, 1);
}
report_failure(9999);
}
static void
cleanup(int sig)
{
if (sig)
prt("signal %d\n", sig);
prt("testcalls = %lu\n", testcalls);
exit(sig);
}
static void
usage(void)
{
fprintf(stdout,
"usage: fsx [-dfnqFLOW] [-b opnum] [-c Prob] [-l flen] [-m start:end] [-o oplen] [-p progressinterval] [-r readbdy] [-s style] [-t truncbdy] [-w writebdy] [-D startingop] [ -I random|rotate ] [-N numops] [-P dirpath] [-S seed] [-Z [prob]] fname [additional paths to fname..]\n"
" -b opnum: beginning operation number (default 1)\n"
" -c P: 1 in P chance of file close+open at each op (default infinity)\n"
" -d: debug output for all operations [-d -d = more debugging]\n"
" -f flush and invalidate cache after I/O\n"
/* OSX: -d duration: number of hours for the tool to run\n\ */
/* OSX: -e: tests using an extended attribute rather than a file\n\ */
/* OSX: -f forkname: test the named fork of fname\n\ */
/* OSX: -g logpath: path for .fsxlog file\n\ */
/* OSX: -h: write 0s instead of creating holes (i.e. sparse file)\n\ */
/* OSX: -i: interactive mode, hit return before performing each operation\n\ */
" -l flen: the upper bound on file size (default 262144)\n"
" -m startop:endop: monitor (print debug output) specified byte range\n"
" (default 0:infinity)\n"
" -n: no verifications of file size\n"
" -o oplen: the upper bound on operation size (default 65536)\n"
" -p progressinterval: debug output at specified operation interval\n"
" -q: quieter operation\n"
" -r readbdy: %1$u would make reads page aligned (default 1)\n"
" -s style: 1 gives smaller truncates (default 0)\n"
" -t truncbdy: %1$u would make truncates page aligned (default 1)\n"
" -w writebdy: %1$u would make writes page aligned (default 1)\n"
/* XFS: -x: preallocate file space before starting, XFS only (default 0)\n\ */
" -y synchronize changes to a file\n"
/* OSX: -v: debug output for all operations\n\ */
/* XFS: -A: Use the AIO system calls\n" */
/* OSX: -C mix cached and un-cached read/write ops\n\ */
" -D startingop: debug output starting at specified operation\n"
" -F: Do not use fallocate (preallocation) calls\n"
/* OSX: -G logsize: #entries in oplog (default 1024)\n\ */
#ifdef FALLOC_FL_PUNCH_HOLE
" -H: Do not use punch hole calls\n"
#endif
#ifdef FALLOC_FL_ZERO_RANGE
" -z: Do not use zero range calls\n"
#endif
/* XFS: -C: Do not use collapse range calls\n\ */
" -I [rotate|random]: When multiple paths to the file are given,\n"
" each operation uses a different path. Iterate through them in\n"
" order with 'rotate' or chose them at 'random'. (default random)\n"
" -L: fsxLite - no file creations & no file size changes\n"
/* OSX: -I: start interactive mode since operation opnum\n\ */
" -M: mirror file test mode\n"
" -N numops: total # operations to do (default infinity)\n"
" -O: use oplen (see -o flag) for every op (default random)\n"
" -P: save .fsxlog and .fsxgood files in dirpath (default ./)\n"
" -R: read() system calls only (mapped reads disabled)\n"
" -S seed: for random # generator (default 1) 0 gets timestamp\n"
/* OSX: -T datasize: atomic data element write size [1,2,4] (default 4)\n\ */
" -W: mapped write operations DISabled\n"
" -Z[P]: O_DIRECT file IO [1 in P chance for each open] (default off)\n"
" fname: this filename is REQUIRED (no default)\n",
page_size);
exit(90);
}
static int
getnum(char *s, char **e)
{
int ret = -1;
*e = (char *)0;
ret = strtol(s, e, 0);
if (*e)
switch (**e) {
case 'b':
case 'B':
ret *= 512;
*e = *e + 1;
break;
case 'k':
case 'K':
ret *= 1024;
*e = *e + 1;
break;
case 'm':
case 'M':
ret *= 1024 * 1024;
*e = *e + 1;
break;
case 'w':
case 'W':
ret *= 4;
*e = *e + 1;
break;
}
return (ret);
}
static int
test_fallocate(int mode)
{
int ret = 0;
int fd = get_fd();
if (!lite) {
/* Must go more than a page away so let's go 4M to be sure */
if (fallocate(fd, mode, 0, 4096*1024) && errno == EOPNOTSUPP) {
if (!quiet)
warn("%s: filesystem does not support fallocate mode 0x%x, disabling!",
__func__, mode);
} else {
ret = 1;
}
/* Always call ftruncate since file size might be adjusted
* by fallocate even on error
*/
if (ftruncate(fd, 0) == -1)
warn("ftruncate to 0 size failed");
}
return ret;
}
int
main(int argc, char **argv)
{
int i, style, ch;
char *endp;
int dirpath = 0;
goodfile[0] = 0;
logfile[0] = 0;
page_size = getpagesize();
page_mask = page_size - 1;
setvbuf(stdout, (char *)0, _IOLBF, 0); /* line buffered stdout */
while ((ch = getopt(argc, argv,
"b:c:dfl:m:no:p:qr:s:t:w:xyzD:FHI:LMN:OP:RS:WZ::"))
!= EOF)
switch (ch) {
case 'b':
simulatedopcount = getnum(optarg, &endp);
if (!quiet)
fprintf(stdout, "Will begin at operation %ld\n",
simulatedopcount);
if (simulatedopcount == 0)
usage();
simulatedopcount -= 1;
break;
case 'c':
closeprob = getnum(optarg, &endp);
if (!quiet)
fprintf(stdout,
"Chance of close/open is 1 in %d\n",
closeprob);
if (closeprob <= 0)
usage();
break;
case 'd':
debug++;
break;
case 'f':
flush = 1;
break;
case 'l':
maxfilelen = getnum(optarg, &endp);
if (maxfilelen <= 0)
usage();
break;
case 'm':
monitorstart = getnum(optarg, &endp);
if (monitorstart < 0)
usage();
if (!endp || *endp++ != ':')
usage();
monitorend = getnum(endp, &endp);
if (monitorend < 0)
usage();
if (monitorend == 0)
monitorend = -1; /* aka infinity */
debug = 1;
case 'n':
sizechecks = 0;
break;
case 'o':
maxoplen = getnum(optarg, &endp);
if (maxoplen <= 0)
usage();
break;
case 'p':
progressinterval = getnum(optarg, &endp);
if (progressinterval <= 0)
usage();
break;
case 'q':
quiet = 1;
break;
case 'r':
readbdy = getnum(optarg, &endp);
if (readbdy <= 0)
usage();
break;
case 's':
style = getnum(optarg, &endp);
if (style < 0 || style > 1)
usage();
break;
case 't':
truncbdy = getnum(optarg, &endp);
if (truncbdy <= 0)
usage();
break;
case 'w':
writebdy = getnum(optarg, &endp);
if (writebdy <= 0)
usage();
break;
case 'y':
do_fsync = 1;
break;
case 'D':
debugstart = getnum(optarg, &endp);
if (debugstart < 1)
usage();
break;
case 'F':
fallocate_calls = 0;
break;
case 'H':
punch_hole_calls = 0;
break;
case 'z':
zero_range_calls = 0;
break;
case 'I':
assign_fd_policy(optarg);
break;
case 'L':
lite = 1;
break;
case 'M':
flrmode = 1;
break;
case 'N':
numops = getnum(optarg, &endp);
if (numops < 0)
usage();
break;
case 'O':
randomoplen = 0;
break;
case 'P':
strncpy(goodfile, optarg, sizeof(goodfile) - 1);
strncat(goodfile, "/", PATH_MAX - strlen(goodfile) - 1);
strncpy(logfile, optarg, sizeof(logfile) - 1);
strncat(logfile, "/", PATH_MAX - strlen(logfile) - 1);
dirpath = 1;
break;
case 'R':
mapped_reads = 0;
break;
case 'S':
seed = getnum(optarg, &endp);
if (seed == 0)
seed = time(0) % 10000;
if (!quiet)
fprintf(stdout, "Seed set to %d\n", seed);
if (seed < 0)
usage();
break;
case 'W':
mapped_writes = 0;
if (!quiet)
fprintf(stdout, "mapped writes DISABLED\n");
break;
case 'Z':
if (optarg)
o_direct = getnum(optarg, &endp);
if (!optarg || o_direct == 0)
o_direct = 1;
break;
default:
usage();
/* NOTREACHED */
}
argc -= optind;
argv += optind;
if (argc < 1)
usage();
fname = argv[0];
signal(SIGHUP, cleanup);
signal(SIGINT, cleanup);
signal(SIGPIPE, cleanup);
signal(SIGALRM, cleanup);
signal(SIGTERM, cleanup);
signal(SIGXCPU, cleanup);
signal(SIGXFSZ, cleanup);
signal(SIGVTALRM, cleanup);
signal(SIGUSR1, cleanup);
signal(SIGUSR2, cleanup);
signal(SIGBUS, segv);
signal(SIGSEGV, segv);
initstate(seed, state, 256);
setstate(state);
open_test_files(argv, argc);
strncat(goodfile, dirpath ? my_basename(fname) : fname, 256);
strncat(goodfile, ".fsxgood", PATH_MAX - strlen(goodfile) - 1);
fsxgoodfd = open(goodfile, O_RDWR | O_CREAT | O_TRUNC, 0666);
if (fsxgoodfd < 0) {
prterr(goodfile);
exit(92);
}
strncat(logfile, dirpath ? my_basename(fname) : fname, 256);
strncat(logfile, ".fsxlog", PATH_MAX - strlen(logfile) - 1);
fsxlogf = fopen(logfile, "w");
if (!fsxlogf) {
prterr(logfile);
exit(93);
}
if (lite) {
off_t ret;
int fd = get_fd();
maxfilelen = lseek(fd, (off_t)0, SEEK_END);
file_size = maxfilelen;
if (file_size == (off_t)-1) {
prterr(fname);
warn("%s: lseek eof", __func__);
exit(94);
}
ret = lseek(fd, (off_t)0, SEEK_SET);
if (ret == (off_t)-1) {
prterr(fname);
warn("%s: lseek 0", __func__);
exit(95);
}
}
original_buf = (char *)malloc(maxfilelen);
if (!original_buf)
exit(96);
for (i = 0; i < maxfilelen; i++)
original_buf[i] = random() % 256;
if (o_direct) {
int ret;
ret = posix_memalign((void **)&good_buf, writebdy, maxfilelen);
if (ret) {
prt("%s: posix_memalign failed: %s\n", __func__,
strerror(ret));
exit(96);
}
ret = posix_memalign((void **)&temp_buf, readbdy, maxoplen);
if (ret) {
prt("%s: posix_memalign failed: %s\n", __func__,
strerror(ret));
exit(97);
}
} else {
good_buf = malloc(maxfilelen);
if (!good_buf) {
prt("malloc failed.\n");
exit(98);
}
temp_buf = malloc(maxoplen);
if (!temp_buf) {
prt("malloc failed.\n");
exit(99);
}
}
memset(good_buf, 0, maxfilelen);
memset(temp_buf, 0, maxoplen);
if (lite) { /* zero entire existing file */
ssize_t written;
int fd = get_fd();
written = write(fd, good_buf, (size_t)maxfilelen);
if (written != maxfilelen) {
if (written == -1) {
prterr(fname);
warn("%s: error on write", __func__);
} else {
warn("%s: short write, 0x%x bytes instead of 0x%lx\n",
__func__, (unsigned int)written,
maxfilelen);
}
exit(98);
}
} else {
check_trunc_hack();
}
if (fallocate_calls)
fallocate_calls = test_fallocate(0);
if (punch_hole_calls)
punch_hole_calls = test_fallocate(FALLOC_FL_PUNCH_HOLE |
FALLOC_FL_KEEP_SIZE);
if (zero_range_calls)
zero_range_calls = test_fallocate(FALLOC_FL_ZERO_RANGE);
fl_keep_size = test_fallocate(FALLOC_FL_KEEP_SIZE);
while (numops == -1 || numops--)
test();
close_test_files();
prt("All operations completed A-OK!\n");
free(original_buf);
free(good_buf);
free(temp_buf);
return 0;
}
