-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
+/*
* GPL HEADER START
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
* in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see [sun.com URL with a
- * copy of GPLv2].
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
+ * version 2 along with this program; If not, see
+ * http://www.gnu.org/licenses/gpl-2.0.html
*
* GPL HEADER END
*/
/*
- * Copyright 2008 Sun Microsystems, Inc. All rights reserved
+ * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
+ *
+ * Copyright (c) 2011, Intel Corporation.
+ *
*/
/*
* This file is part of Lustre, http://www.lustre.org/
* handling IO beyond 2TB boundary.
* This tool have two working modes
* 1. full mode
- * 2. fast mode
- * The full mode is basic mode in which program writes the test pattern
- * on entire disk. The test pattern (device offset and timestamp) is written
- * at the beginning of each 4kB block. When the whole device is full then
- * read operation is performed to verify that the test pattern is correct.
- * In the fast mode the program writes data at the critical locations
+ * 2. partial mode
+ *
+ * In full mode, the program writes a test pattern on the entire disk.
+ * The test pattern (device offset and timestamp) is written at the
+ * beginning of each 4kB block. When the whole device is full the read
+ * operation is performed to verify that the test pattern is correct.
+ *
+ * In partial mode, the program writes data at the critical locations
* of the device such as start of the device, before and after multiple of 1GB
* offset and at the end.
- * A chunk buffer with default size of 1MB is used to write and read test
+ *
+ * A chunk buffer with default size of 1MB is used to write and read test
* pattern in bulk.
*/
#include <sys/time.h>
#include <gnu/stubs.h>
-#ifdef HAVE_EXT2FS_EXT2FS_H
-# include <ext2fs/ext2fs.h>
-#endif
-
#define ONE_MB (1024 * 1024)
#define ONE_GB (1024 * 1024 * 1024)
#define HALF_MB (ONE_MB / 2)
/* Structure for writting test pattern */
struct block_data {
- long long bd_offset;
- time_t bd_time;
+ unsigned long long bd_offset;
+ unsigned long long bd_time;
+ unsigned long long bd_inode;
};
static char *progname; /* name by which this program was run. */
static unsigned verbose = 1; /* prints offset in kB, operation rate */
static int writeoption; /* run test in write_only mode */
const char *devname; /* name of device to be tested. */
static unsigned full = 1; /* flag to full check */
-static int fd;
+static int error_count; /* number of IO errors hit during run */
static int isatty_flag;
-static struct option const longopts[] =
-{
- { "chunksize", required_argument, 0, 'c' },
- { "force", no_argument, 0, 'f' },
- { "help", no_argument, 0, 'h' },
- { "offset", required_argument, 0, 'o' },
- { "partial", required_argument, 0, 'p' },
- { "quiet", required_argument, 0, 'q' },
- { "read", no_argument, 0, 'r' },
- { "timestamp", required_argument, 0, 't' },
- { "verbose", no_argument, 0, 'v' },
- { "write", no_argument, 0, 'w' },
- { "long", no_argument, 0, 'l' },
- { 0, 0, 0, 0}
-};
+static struct option const long_opts[] = {
+ { .val = 'c', .name = "chunksize", .has_arg = required_argument },
+ { .val = 'f', .name = "force", .has_arg = no_argument },
+ { .val = 'h', .name = "help", .has_arg = no_argument },
+ { .val = 'l', .name = "long", .has_arg = no_argument },
+ { .val = 'l', .name = "full", .has_arg = no_argument },
+ { .val = 'o', .name = "offset", .has_arg = required_argument },
+ { .val = 'p', .name = "partial", .has_arg = required_argument },
+ { .val = 'q', .name = "quiet", .has_arg = required_argument },
+ { .val = 'r', .name = "read", .has_arg = no_argument },
+ { .val = 't', .name = "timestamp", .has_arg = required_argument },
+ { .val = 'v', .name = "verbose", .has_arg = no_argument },
+ { .val = 'w', .name = "write", .has_arg = no_argument },
+ { .name = NULL } };
/*
* Usage: displays help information, whenever user supply --help option in
void usage(int status)
{
if (status != 0) {
- printf("\nUsage: %s [OPTION]... <device-name> ...\n",
- progname);
- printf("Block device verification tool.\n"
- "\t-t {seconds}, --timestamp, "
- "set test time (default=current time())\n"
- "\t-o {offset}, --offset, "
- "offset in kB of start of test, default=0\n"
- "\t-r, --read run test in verify mode\n"
- "\t-w, --write run test in test-pattern mode, default=rw\n"
- "\t-v, --verbose\n"
- "\t-q, --quiet\n"
- "\t-l, --long, full check of device\n"
- "\t-p, --partial, for partial check (1GB steps)\n"
- "\t-c, --chunksize, IO chunk size, default=1048576\n"
- "\t-f, --force, force test to run without confirmation\n"
- "\t-h, --help display this help and exit\n");
+ printf("\nUsage: %s [OPTION]... <device-name> ...\n",
+ progname);
+ printf("Block device verification tool.\n"
+ "\t-t {seconds}, --timestamp, "
+ "set test time (default=current time())\n"
+ "\t-o {offset}, --offset, "
+ "offset in kB of start of test, default=0\n"
+ "\t-r, --read, run in verify mode\n"
+ "\t-w, --write, run in test-pattern mode, default=rw\n"
+ "\t-v, --verbose\n"
+ "\t-q, --quiet\n"
+ "\t-l, --long, --full check of device\n"
+ "\t-p, --partial, for partial check (1GB steps)\n"
+ "\t-c {bytes}, --chunksize, IO size, default=1048576\n"
+ "\t-f, --force, force test to run without confirmation\n"
+ "\t-h, --help, display this help and exit\n");
}
exit(status);
}
*/
static int open_dev(const char *devname, int mode)
{
-#ifdef HAVE_EXT2FS_EXT2FS_H
- int mount_flags;
- char mountpt[80] = "";
+ int fd;
- if (ext2fs_check_mount_point(devname, &mount_flags, mountpt,
- sizeof(mountpt))) {
- fprintf(stderr, "%s: ext2fs_check_mount_point failed:%s",
- progname, strerror(errno));
- exit(1);
- }
- if (mount_flags & EXT2_MF_MOUNTED){
- fprintf(stderr, "%s: %s is already mounted\n", progname,
- devname);
- exit(1);
- }
-#endif
fd = open(devname, mode | O_EXCL | O_LARGEFILE);
if (fd < 0) {
fprintf(stderr, "%s: Open failed: %s",progname,strerror(errno));
exit(3);
}
- return (fd);
+ return fd;
}
-#undef HAVE_BLKID_BLKID_H /* sigh, RHEL3 systems do not have libblkid.so.1 */
-#ifdef HAVE_BLKID_BLKID_H
-#include <blkid/blkid.h>
-#endif
/*
* sizeof_dev: Returns size of device in bytes
*/
-static loff_t sizeof_dev(int fd)
+static size_t sizeof_dev(int fd)
{
- loff_t numbytes;
+ size_t numbytes;
-#ifdef HAVE_BLKID_BLKID_H
- numbytes = blkid_get_dev_size(fd);
- if (numbytes <= 0) {
- fprintf(stderr, "%s: blkid_get_dev_size(%s) failed",
- progname, devname);
- return 1;
- }
- goto out;
-#else
# if defined BLKGETSIZE64 /* in sys/mount.h */
if (ioctl(fd, BLKGETSIZE64, &numbytes) >= 0)
goto out;
}
}
fprintf(stderr, "%s: unable to determine size of %s\n",
- progname, devname);
+ progname, devname);
return 0;
-#endif
out:
if (verbose)
* Verify_chunk: Verifies test pattern in each 4kB (BLOCKSIZE) is correct.
* Returns 0 if test offset and timestamp is correct otherwise 1.
*/
-int verify_chunk(char *chunk_buf, size_t chunksize,
- unsigned long long chunk_off, time_t time_st)
+int verify_chunk(char *chunk_buf, const size_t chunksize,
+ unsigned long long chunk_off, const unsigned long long time_st,
+ const unsigned long long inode_st, const char *file)
{
struct block_data *bd;
char *chunk_end;
(char *)chunk_buf < chunk_end;
chunk_buf += BLOCKSIZE, chunk_off += BLOCKSIZE) {
bd = (struct block_data *)chunk_buf;
- if ((bd->bd_offset == chunk_off) && (bd->bd_time == time_st))
+ if ((bd->bd_offset == chunk_off) && (bd->bd_time == time_st) &&
+ (bd->bd_inode == inode_st))
continue;
- fprintf(stderr, "\n%s: verify failed at offset/timestamp "
- "%llu/%lu: found %llu/%lu instead\n", progname,
- chunk_off, time_st, bd->bd_offset, bd->bd_time);
+ fprintf(stderr, "\n%s: verify %s failed offset/timestamp/inode "
+ "%llu/%llu/%llu: found %llu/%llu/%llu instead\n",
+ progname, file, chunk_off, time_st, inode_st,
+ bd->bd_offset, bd->bd_time, bd->bd_inode);
+ error_count++;
return 1;
}
return 0;
/*
* fill_chunk: Fills the chunk with current or user specified timestamp
- * and offset. The test patters is filled at the beginning of
+ * and offset. The test pattern is filled at the beginning of
* each 4kB(BLOCKSIZE) blocks in chunk_buf.
*/
void fill_chunk(char *chunk_buf, size_t chunksize, loff_t chunk_off,
- time_t time_st)
+ const time_t time_st, const ino_t inode_st)
{
struct block_data *bd;
char *chunk_end;
bd = (struct block_data *)chunk_buf;
bd->bd_offset = chunk_off;
bd->bd_time = time_st;
+ bd->bd_inode = inode_st;
}
}
}
/*
- * write_chunk: write the chunk_buf on the device. The number of write
+ * Write a chunk to disk, handling errors, interrupted writes, etc.
+ *
+ * If there is an IO error hit during the write, it is possible that
+ * this will just show up as a short write, and a subsequent write
+ * will return the actual error. We want to continue in the face of
+ * minor media errors so that we can validate the whole device if
+ * possible, but if there are many errors we don't want to loop forever.
+ *
+ * The error count will be returned upon exit to ensure that the
+ * media errors are detected even if nobody is looking at the output.
+ *
+ * Returns 0 on success, or -ve errno on failure.
+ */
+size_t write_retry(int fd, const char *chunk_buf, size_t nrequested,
+ unsigned long long offset, const char *file)
+{
+ long nwritten;
+
+retry:
+ nwritten = write(fd, chunk_buf, nrequested);
+ if (nwritten < 0) {
+ if (errno != ENOSPC) {
+ fprintf(stderr, "\n%s: write %s@%llu+%zi failed: %s\n",
+ progname, file, offset, nrequested,
+ strerror(errno));
+ if (error_count++ < 100)
+ return 0;
+ }
+ return -errno;
+ }
+ if (nwritten < nrequested) {
+ fprintf(stderr, "\n%s: write %s@%llu+%zi short: %ld written\n",
+ progname, file, offset, nrequested, nwritten);
+ offset += nwritten;
+ chunk_buf += nwritten;
+ nrequested -= nwritten;
+ goto retry;
+ }
+
+ return 0;
+}
+
+/*
+ * write_chunks: write the chunk_buf on the device. The number of write
* operations are based on the parameters write_end, offset, and chunksize.
+ *
+ * Returns 0 on success, or -ve error number on failure.
*/
-int write_chunks(unsigned long long offset, unsigned long long write_end,
- char *chunk_buf, size_t chunksize, time_t time_st)
+int write_chunks(int fd, unsigned long long offset,unsigned long long write_end,
+ char *chunk_buf, size_t chunksize, const time_t time_st,
+ const ino_t inode_st, const char *file)
{
unsigned long long stride, count = 0;
stride = full ? chunksize : (ONE_GB - chunksize);
-
for (offset = offset & ~(chunksize - 1); offset < write_end;
offset += stride) {
+ int ret;
+
if (lseek64(fd, offset, SEEK_SET) == -1) {
- fprintf(stderr, "\n%s: lseek64(%llu) failed: %s\n",
- progname, offset, strerror(errno));
- return 1;
+ fprintf(stderr, "\n%s: lseek64(%s+%llu) failed: %s\n",
+ progname, file, offset, strerror(errno));
+ return -errno;
}
if (offset + chunksize > write_end)
chunksize = write_end - offset;
-
if (!full && offset > chunksize) {
- fill_chunk(chunk_buf, chunksize, offset, time_st);
- if (write(fd, chunk_buf, chunksize) < 0) {
- fprintf(stderr, "\n%s: write %llu failed: %s\n",
- progname, offset, strerror(errno));
- return 1;
- }
+ fill_chunk(chunk_buf, chunksize, offset, time_st,
+ inode_st);
+ ret = write_retry(fd, chunk_buf, chunksize,
+ offset, file);
+ if (ret < 0)
+ return ret;
offset += chunksize;
+ count += chunksize;
if (offset + chunksize > write_end)
chunksize = write_end - offset;
}
-
- fill_chunk(chunk_buf, chunksize, offset, time_st);
- if (write(fd, chunk_buf, chunksize) < 0) {
- fprintf(stderr, "\n%s: write %llu failed: %s\n",
- progname, offset, strerror(errno));
- return 1;
- }
+ fill_chunk(chunk_buf, chunksize, offset, time_st, inode_st);
+ ret = write_retry(fd, chunk_buf, chunksize, offset, file);
+ if (ret < 0)
+ return ret;
count += chunksize;
if (verbose > 1)
show_rate("write", offset, &count);
}
+
if (verbose > 1) {
show_rate("write", offset, &count);
printf("\nwrite complete\n");
}
if (fsync(fd) == -1) {
- fprintf(stderr, "%s: fsync faild: %s\n", progname,
+ fprintf(stderr, "%s: fsync failed: %s\n", progname,
strerror(errno));
- return 1;
+ return -errno;
}
return 0;
}
* read_chunk: reads the chunk_buf from the device. The number of read
* operations are based on the parameters read_end, offset, and chunksize.
*/
-int read_chunks(unsigned long long offset, unsigned long long read_end,
- char *chunk_buf, size_t chunksize, time_t time_st)
+int read_chunks(int fd, unsigned long long offset, unsigned long long read_end,
+ char *chunk_buf, size_t chunksize, const time_t time_st,
+ const ino_t inode_st, const char *file)
{
unsigned long long stride, count = 0;
- stride = full ? chunksize : (ONE_GB - chunksize);
-
if (ioctl(fd, BLKFLSBUF, 0) < 0 && verbose)
fprintf(stderr, "%s: ioctl BLKFLSBUF failed: %s (ignoring)\n",
progname, strerror(errno));
+ stride = full ? chunksize : (ONE_GB - chunksize);
for (offset = offset & ~(chunksize - 1); offset < read_end;
offset += stride) {
+ ssize_t nread;
+
if (lseek64(fd, offset, SEEK_SET) == -1) {
fprintf(stderr, "\n%s: lseek64(%llu) failed: %s\n",
progname, offset, strerror(errno));
chunksize = read_end - offset;
if (!full && offset > chunksize) {
- if (read (fd, chunk_buf, chunksize) < 0) {
- fprintf(stderr, "\n%s: read %llu failed: %s\n",
- progname, offset, strerror(errno));
+ nread = read(fd, chunk_buf, chunksize);
+ if (nread < 0) {
+ fprintf(stderr,"\n%s: read %s@%llu+%zi failed: "
+ "%s\n", progname, file, offset,
+ chunksize, strerror(errno));
+ error_count++;
return 1;
}
- if (verify_chunk(chunk_buf, chunksize, offset,
- time_st) != 0)
+ if (nread < chunksize) {
+ fprintf(stderr, "\n%s: read %s@%llu+%zi short: "
+ "%zi read\n", progname, file, offset,
+ chunksize, nread);
+ error_count++;
+ }
+ if (verify_chunk(chunk_buf, nread, offset, time_st,
+ inode_st, file) != 0)
return 1;
offset += chunksize;
+ count += chunksize;
+
+ /* Need to reset position after read error */
+ if (nread < chunksize &&
+ lseek64(fd, offset, SEEK_SET) == -1) {
+ fprintf(stderr,
+ "\n%s: lseek64(%s@%llu) failed: %s\n",
+ progname, file, offset,strerror(errno));
+ return 1;
+ }
if (offset + chunksize >= read_end)
chunksize = read_end - offset;
}
- if (read(fd, chunk_buf, chunksize) < 0) {
+ nread = read(fd, chunk_buf, chunksize);
+ if (nread < 0) {
fprintf(stderr, "\n%s: read failed: %s\n", progname,
strerror(errno));
+ error_count++;
return 1;
}
+ if (nread < chunksize) {
+ fprintf(stderr, "\n%s: read %s@%llu+%zi short: "
+ "%zi read\n", progname, file, offset,
+ chunksize, nread);
+ error_count++;
+ }
- if (verify_chunk(chunk_buf, chunksize, offset, time_st) != 0)
+ if (verify_chunk(chunk_buf, nread, offset, time_st,
+ inode_st, file) != 0)
return 1;
count += chunksize;
unsigned long long dev_size = 0;
char yesno[4];
int mode = O_RDWR; /* mode which device should be opened */
+ int fd;
int error = 0, c;
progname = strrchr(argv[0], '/') == NULL ?
argv[0] : strrchr(argv[0], '/') + 1;
- while ((c = getopt_long(argc, argv, "c:fhlo:pqrt:vw", longopts,
+ while ((c = getopt_long(argc, argv, "c:fhlo:pqrt:vw", long_opts,
NULL)) != -1) {
switch (c) {
case 'c':
chunksize = (strtoul(optarg, NULL, 0) * ONE_MB);
if (!chunksize) {
- fprintf(stderr, "%s: chunk size value should be"
- "nonzero and multiple of 1MB\n",
+ fprintf(stderr,
+ "%s: chunk size value should be nonzero and multiple of 1MB\n",
progname);
return -1;
}
if (!force && writeoption) {
printf("%s: permanently overwrite all data on %s (yes/no)? ",
progname, devname);
- scanf("%3s", yesno);
+ if (scanf("%3s", yesno) == EOF && ferror(stdin)) {
+ perror("reading from stdin");
+ return -1;
+ }
if (!(strcasecmp("yes", yesno) || strcasecmp("y", yesno))) {
printf("Not continuing due to '%s' response", yesno);
return 0;
goto close_dev;
}
if (writeoption) {
- if (write_chunks(offset, dev_size, chunk_buf, chunksize,
- time_st)) {
+ c = write_chunks(fd, offset, dev_size, chunk_buf, chunksize,
+ time_st, 0, devname);
+ if (c < 0 && c != -ENOSPC) {
error = 3;
goto chunk_buf;
}
- if (!full) { /* end of device aligned to a block */
+ if (!full) { /* end of device aligned to a block */
offset = ((dev_size - chunksize + BLOCKSIZE - 1) &
~(BLOCKSIZE - 1));
- if (write_chunks(offset, dev_size, chunk_buf, chunksize,
- time_st)) {
+ c = write_chunks(fd, offset, dev_size, chunk_buf,
+ chunksize, time_st, 0, devname);
+ if (c < 0 && c != -ENOSPC) {
error = 3;
goto chunk_buf;
}
offset = offset_orig;
}
if (readoption) {
- if (read_chunks(offset, dev_size, chunk_buf, chunksize,
- time_st)) {
+ if (read_chunks(fd, offset, dev_size, chunk_buf, chunksize,
+ time_st, 0, devname)) {
error = 2;
goto chunk_buf;
}
if (!full) { /* end of device aligned to a block */
offset = ((dev_size - chunksize + BLOCKSIZE - 1) &
~(BLOCKSIZE - 1));
- if (read_chunks(offset, dev_size, chunk_buf, chunksize,
- time_st)) {
+ if (read_chunks(fd, offset, dev_size, chunk_buf,
+ chunksize, time_st, 0, devname)) {
error = 2;
goto chunk_buf;
}
if (verbose)
printf("\n%s: data verified successfully\n", progname);
}
- error = 0;
+ error = error_count;
chunk_buf:
free(chunk_buf);
close_dev:
git://git.whamcloud.com / fs / lustre-release.git / blobdiff