示例#1
0
int
main(int argc, char *argv[])
{
    int ret = 0;
    char *hostname = NULL;
    char *volname = NULL;
    char *logfile = NULL;
    glfs_t *fs = NULL;

    if (argc != 4) {
        fprintf(stderr, "Invalid argument\n");
        exit(1);
    }

    hostname = argv[1];
    volname = argv[2];
    logfile = argv[3];

    fs = glfs_new(volname);
    if (!fs) {
        LOG_ERR("glfs_new failed");
        return -1;
    }

    ret = glfs_set_volfile_server(fs, "tcp", hostname, 24007);
    if (ret < 0) {
        LOG_ERR("glfs_set_volfile_server failed");
        goto err;
    }

    ret = glfs_set_logging(fs, logfile, 7);
    if (ret < 0) {
        LOG_ERR("glfs_set_logging failed");
        goto err;
    }

    ret = glfs_init(fs);
    if (ret < 0) {
        LOG_ERR("glfs_init failed");
        goto err;
    }

    glfs_fini(fs);
    fs = NULL;
    return 0;
err:
    glfs_fini(fs);
    fs = NULL;

    return -1;
}
示例#2
0
文件: gluster.c 项目: Annovae/qemu
static void qemu_gluster_close(BlockDriverState *bs)
{
    BDRVGlusterState *s = bs->opaque;

    if (s->fd) {
        glfs_close(s->fd);
        s->fd = NULL;
    }
    glfs_fini(s->glfs);
}
int
main (int argc, char *argv[])
{
    glfs_t    *fs = NULL;
    glfs_fd_t *fd = NULL;
    int        ret = 1;

    if (argc != 4) {
        fprintf (stderr, "Syntax: %s <host> <volname> <file-path> \n", argv[0]);
        return 1;
    }

    fs = glfs_new (argv[2]);
    if (!fs) {
        fprintf (stderr, "glfs_new: returned NULL\n");
        return 1;
    }

    ret = glfs_set_volfile_server (fs, "tcp", argv[1], 24007);
    if (ret != 0) {
        fprintf (stderr, "glfs_set_volfile_server: retuned %d\n", ret);
        goto out;
    }
    ret = glfs_set_logging (fs, "/var/log/glusterfs/glfs-dis.log", 7);
    if (ret != 0) {
        fprintf (stderr, "glfs_set_logging: returned %d\n", ret);
        goto out;
    }
    ret = glfs_init (fs);
    if (ret != 0) {
        fprintf (stderr, "glfs_init: returned %d\n", ret);
        goto out;
    }

    fd = glfs_open (fs, argv[3], O_RDWR);
    if (fd == NULL) {
        fprintf (stderr, "glfs_open: returned NULL\n");
        goto out;
    }

    /* Zero-fill "foo" with 10MB of data */
    ret = glfs_zerofill (fd, 0, 10485760);
    if (ret <= 0) {
        fprintf (stderr, "glfs_zerofill: returned %d\n", ret);
        goto out;
    }

    glfs_close(fd);

    ret = 0;

out:
    glfs_fini (fs);
    return ret;
}
示例#4
0
文件: gluster.c 项目: Annovae/qemu
static struct glfs *qemu_gluster_init(GlusterConf *gconf, const char *filename,
                                      Error **errp)
{
    struct glfs *glfs = NULL;
    int ret;
    int old_errno;

    ret = qemu_gluster_parseuri(gconf, filename);
    if (ret < 0) {
        error_setg(errp, "Usage: file=gluster[+transport]://[server[:port]]/"
                   "volname/image[?socket=...]");
        errno = -ret;
        goto out;
    }

    glfs = glfs_new(gconf->volname);
    if (!glfs) {
        goto out;
    }

    ret = glfs_set_volfile_server(glfs, gconf->transport, gconf->server,
            gconf->port);
    if (ret < 0) {
        goto out;
    }

    /*
     * TODO: Use GF_LOG_ERROR instead of hard code value of 4 here when
     * GlusterFS makes GF_LOG_* macros available to libgfapi users.
     */
    ret = glfs_set_logging(glfs, "-", 4);
    if (ret < 0) {
        goto out;
    }

    ret = glfs_init(glfs);
    if (ret) {
        error_setg_errno(errp, errno,
                         "Gluster connection failed for server=%s port=%d "
                         "volume=%s image=%s transport=%s", gconf->server,
                         gconf->port, gconf->volname, gconf->image,
                         gconf->transport);
        goto out;
    }
    return glfs;

out:
    if (glfs) {
        old_errno = errno;
        glfs_fini(glfs);
        errno = old_errno;
    }
    return NULL;
}
示例#5
0
文件: glfs.c 项目: rootfs/tcmu-runner
static void tcmu_glfs_close(struct tcmu_device *dev)
{
	struct glfs_state *gfsp = tcmu_get_dev_private(dev);

	glfs_close(gfsp->gfd);
	glfs_fini(gfsp->fs);
	free(gfsp->volname);
	free(gfsp->pathname);
	free(gfsp->servername);
	free(gfsp);
}
示例#6
0
static int qemu_gluster_open(BlockDriverState *bs, const char *filename,
    QDict *options, int bdrv_flags)
{
    BDRVGlusterState *s = bs->opaque;
    int open_flags = O_BINARY;
    int ret = 0;
    GlusterConf *gconf = g_malloc0(sizeof(GlusterConf));

    s->glfs = qemu_gluster_init(gconf, filename);
    if (!s->glfs) {
        ret = -errno;
        goto out;
    }

    if (bdrv_flags & BDRV_O_RDWR) {
        open_flags |= O_RDWR;
    } else {
        open_flags |= O_RDONLY;
    }

    if ((bdrv_flags & BDRV_O_NOCACHE)) {
        open_flags |= O_DIRECT;
    }

    s->fd = glfs_open(s->glfs, gconf->image, open_flags);
    if (!s->fd) {
        ret = -errno;
        goto out;
    }

    ret = qemu_pipe(s->fds);
    if (ret < 0) {
        ret = -errno;
        goto out;
    }
    fcntl(s->fds[GLUSTER_FD_READ], F_SETFL, O_NONBLOCK);
    qemu_aio_set_fd_handler(s->fds[GLUSTER_FD_READ],
        qemu_gluster_aio_event_reader, NULL, qemu_gluster_aio_flush_cb, s);

out:
    qemu_gluster_gconf_free(gconf);
    if (!ret) {
        return ret;
    }
    if (s->fd) {
        glfs_close(s->fd);
    }
    if (s->glfs) {
        glfs_fini(s->glfs);
    }
    return ret;
}
示例#7
0
文件: gluster.c 项目: NormanM/qemu
static void qemu_gluster_close(BlockDriverState *bs)
{
    BDRVGlusterState *s = bs->opaque;

    close(s->fds[GLUSTER_FD_READ]);
    close(s->fds[GLUSTER_FD_WRITE]);
    qemu_aio_set_fd_handler(s->fds[GLUSTER_FD_READ], NULL, NULL, NULL);

    if (s->fd) {
        glfs_close(s->fd);
        s->fd = NULL;
    }
    glfs_fini(s->glfs);
}
示例#8
0
void xglfs_destroy(void* _userdata)
{
	glfs_fini(XGLFS_STATE->fs);

	free(XGLFS_STATE->protocol);
	free(XGLFS_STATE->server);
	free(XGLFS_STATE->volume);
	free(XGLFS_STATE->mountpoint);
	free(XGLFS_STATE->glfs_logfile);

	struct xglfs_state* xglfs_state = XGLFS_STATE;
	free(xglfs_state);

	return;
}
示例#9
0
文件: gluster.c 项目: Annovae/qemu
static int qemu_gluster_open(BlockDriverState *bs,  QDict *options,
                             int bdrv_flags, Error **errp)
{
    BDRVGlusterState *s = bs->opaque;
    int open_flags = 0;
    int ret = 0;
    GlusterConf *gconf = g_malloc0(sizeof(GlusterConf));
    QemuOpts *opts;
    Error *local_err = NULL;
    const char *filename;

    opts = qemu_opts_create(&runtime_opts, NULL, 0, &error_abort);
    qemu_opts_absorb_qdict(opts, options, &local_err);
    if (local_err) {
        error_propagate(errp, local_err);
        ret = -EINVAL;
        goto out;
    }

    filename = qemu_opt_get(opts, "filename");

    s->glfs = qemu_gluster_init(gconf, filename, errp);
    if (!s->glfs) {
        ret = -errno;
        goto out;
    }

    qemu_gluster_parse_flags(bdrv_flags, &open_flags);

    s->fd = glfs_open(s->glfs, gconf->image, open_flags);
    if (!s->fd) {
        ret = -errno;
    }

out:
    qemu_opts_del(opts);
    qemu_gluster_gconf_free(gconf);
    if (!ret) {
        return ret;
    }
    if (s->fd) {
        glfs_close(s->fd);
    }
    if (s->glfs) {
        glfs_fini(s->glfs);
    }
    return ret;
}
示例#10
0
gfapi_device::~gfapi_device()
{
   if (m_gfd) {
      glfs_close(m_gfd);
      m_gfd = NULL;
   }

   if (!m_glfs) {
      glfs_fini(m_glfs);
      m_glfs = NULL;
   }

   if (m_gfapi_volume) {
      free(m_gfapi_volume);
      m_gfapi_volume = NULL;
   }
}
int
cli_disconnect (struct cli_context *ctx)
{
        int ret = 0;
        struct fd_list *cur, *ptr = NULL;

        free_xlator_options (&ctx->options->xlator_options);

        /* Traverse fd_list and cleanup each entry.*/
        ptr = ctx->flist;
        while (ptr) {
                if (ptr->fd) {
                        glfs_close (ptr->fd);
                        ptr->fd = NULL;
                }

                if (ptr->path) {
                        free (ptr->path);
                        ptr->path = NULL;
                }

                cur = ptr;
                ptr = ptr->next;
                free (cur);
        }

        if (ctx->fs) {
                // FIXME: Memory leak occurs here in GFS >= 3.6. Test with 3.7
                // and if fixed, remove the entry (xlator_mem_acct_init) from
                // the valgrind suppression file.
                ret = glfs_fini (ctx->fs);
                ctx->fs = NULL;
        }

        if (ctx->url) {
                gluster_url_free (ctx->url);
                ctx->url = NULL;
        }

        free (ctx->conn_str);
        ctx->conn_str = NULL;

        return ret;
}
示例#12
0
int
main (int argc, char *argv[])
{
    int        ret      = 0;
    glfs_t    *fs       = NULL;
    char       buf[100];
    glfs_fd_t *fd       = NULL;

    if (argc != 4) {
        fprintf (stderr,
                 "Expect following args %s <hostname> <Vol> <log file location>\n"
                 , argv[0]);
        return -1;
    }

    fs = setup_new_client (argv[1], argv[2], argv[3]);
    if (!fs)
        goto error;

    ret = volfile_change (argv[2]);
    if (ret < 0)
        goto error;

    /* This is required as volfile change takes a while to reach this
     * gfapi client and precess the graph change. Without this the issue
     * cannot be reproduced as in cannot be tested.
     */
    sleep (10);

    ret = write_something (fs);
    if (ret < 0)
        goto error;

    ret = glfs_fini (fs);
    if (ret < 0) {
        fprintf (stderr, "glfs_fini failed with ret: %d (%s)\n",
                 ret, strerror (errno));
        goto error;
    }

    return 0;
error:
    return -1;
}
示例#13
0
int
glfs_test_function (const char *hostname, const char *volname,
                    const char *logfile)
{
        int             ret      = -1;
        int             flags    = O_CREAT | O_RDWR;
        glfs_t         *fs       = NULL;
        glfs_fd_t      *glfd     = NULL;
        const char     *buff     = "This is from my prog\n";
        const char     *filename = "glfs_test.txt";

        fs = init_glfs (hostname, volname, logfile);
        if (fs == NULL) {
                LOG_ERR ("init_glfs failed");
                return -1;
        }

        glfd = glfs_creat (fs, filename, flags, 0644);
        if (glfd == NULL) {
                LOG_ERR ("glfs_creat failed");
                goto out;
        }

        ret = glfs_write (glfd, buff, strlen (buff), flags);
        if (ret < 0) {
                LOG_ERR ("glfs_write failed");
                goto out;
        }

        ret = glfs_close (glfd);
        if (ret < 0) {
                LOG_ERR ("glfs_write failed");
                goto out;
        }

out:
        ret = glfs_fini (fs);
        if (ret) {
                LOG_ERR ("glfs_fini failed");
        }

        return ret;
}
示例#14
0
文件: gfapi_device.c 项目: AlD/bareos
gfapi_device::~gfapi_device()
{
   if (m_gfd) {
      glfs_close(m_gfd);
      m_gfd = NULL;
   }

   if (!m_glfs) {
      glfs_fini(m_glfs);
      m_glfs = NULL;
   }

   if (m_gfapi_volume) {
      free(m_gfapi_volume);
      m_gfapi_volume = NULL;
   }

   free_pool_memory(m_virtual_filename);
}
示例#15
0
int
main(int argc, char *argv[])
{
    glfs_t *fs = NULL;
    int ret = 0, i;
    glfs_fd_t *fd = NULL;
    char readbuf[32];
    char *logname = NULL;
    char *hostname = NULL;
    char *volname = NULL;

    fprintf(stderr, "Starting libgfapi_fini\n");

    if (argc < 4) {
        fprintf(stderr, "Invalid argument\n");
        exit(1);
    }

    hostname = argv[1];
    volname = argv[2];
    logname = argv[3];

    fs = glfs_new(volname);
    if (!fs) {
        fprintf(stderr, "glfs_new: returned NULL\n");
        exit(1);
    }

    ret = glfs_set_volfile_server(fs, "tcp", hostname, 0);
    LOG_ERR("glfs_set_volfile_server", ret);

    ret = glfs_set_logging(fs, logname, 7);
    LOG_ERR("glfs_set_logging", ret);

    /* Do not call glfs_init.
     * glfs_fini() shouldn't hang in that case*/
    ret = glfs_fini(fs);
    LOG_ERR("glfs_fini", ret);
    fprintf(stderr, "End of libgfapi_fini\n");

    exit(0);
}
示例#16
0
static int
cat_without_context ()
{
        glfs_t *fs = NULL;
        int ret = -1;

        ret = gluster_getfs (&fs, state->gluster_url);
        if (ret == -1) {
                error (0, errno, state->url);
                goto out;
        }

        ret = apply_xlator_options (fs, &state->xlator_options);
        if (ret == -1) {
                error (0, errno, "failed to apply translator options");
                goto out;
        }

        if (state->debug) {
                ret = glfs_set_logging (fs, "/dev/stderr", GF_LOG_DEBUG);

                if (ret == -1) {
                        error (0, errno, "failed to set logging level");
                        goto out;
                }
        }

        ret = gluster_get (fs, state->gluster_url->path);
        if (ret == -1) {
                goto out;
        }

        ret = 0;

out:
        if (fs) {
                glfs_fini (fs);
        }

        return ret;
}
示例#17
0
文件: gluster.c 项目: NormanM/qemu
static int qemu_gluster_create(const char *filename,
        QEMUOptionParameter *options)
{
    struct glfs *glfs;
    struct glfs_fd *fd;
    int ret = 0;
    int64_t total_size = 0;
    GlusterConf *gconf = g_malloc0(sizeof(GlusterConf));

    glfs = qemu_gluster_init(gconf, filename);
    if (!glfs) {
        ret = -errno;
        goto out;
    }

    while (options && options->name) {
        if (!strcmp(options->name, BLOCK_OPT_SIZE)) {
            total_size = options->value.n / BDRV_SECTOR_SIZE;
        }
        options++;
    }

    fd = glfs_creat(glfs, gconf->image,
        O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, S_IRUSR | S_IWUSR);
    if (!fd) {
        ret = -errno;
    } else {
        if (glfs_ftruncate(fd, total_size * BDRV_SECTOR_SIZE) != 0) {
            ret = -errno;
        }
        if (glfs_close(fd) != 0) {
            ret = -errno;
        }
    }
out:
    qemu_gluster_gconf_free(gconf);
    if (glfs) {
        glfs_fini(glfs);
    }
    return ret;
}
示例#18
0
文件: gluster.c 项目: Annovae/qemu
static void qemu_gluster_reopen_abort(BDRVReopenState *state)
{
    BDRVGlusterReopenState *reop_s = state->opaque;

    if (reop_s == NULL) {
        return;
    }

    if (reop_s->fd) {
        glfs_close(reop_s->fd);
    }

    if (reop_s->glfs) {
        glfs_fini(reop_s->glfs);
    }

    g_free(state->opaque);
    state->opaque = NULL;

    return;
}
示例#19
0
glfs_t *
init_glfs (const char *hostname, const char *volname,
           const char *logfile)
{
        int     ret     = -1;
        glfs_t *fs      = NULL;

        fs = glfs_new (volname);
        if (!fs) {
                LOG_ERR ("glfs_new failed");
                return NULL;
        }

        ret = glfs_set_volfile_server (fs, "tcp", hostname, 24007);
        if (ret < 0) {
                LOG_ERR ("glfs_set_volfile_server failed");
                goto out;
        }

        ret = glfs_set_logging (fs, logfile, 7);
        if (ret < 0) {
                LOG_ERR ("glfs_set_logging failed");
                goto out;
        }

        ret = glfs_init (fs);
        if (ret < 0) {
                LOG_ERR ("glfs_init failed");
                goto out;
        }

        ret = 0;
out:
        if (ret) {
                glfs_fini (fs);
                fs = NULL;
        }

        return fs;
}
示例#20
0
文件: gluster.c 项目: Annovae/qemu
static void qemu_gluster_reopen_commit(BDRVReopenState *state)
{
    BDRVGlusterReopenState *reop_s = state->opaque;
    BDRVGlusterState *s = state->bs->opaque;


    /* close the old */
    if (s->fd) {
        glfs_close(s->fd);
    }
    if (s->glfs) {
        glfs_fini(s->glfs);
    }

    /* use the newly opened image / connection */
    s->fd         = reop_s->fd;
    s->glfs       = reop_s->glfs;

    g_free(state->opaque);
    state->opaque = NULL;

    return;
}
示例#21
0
int
main(int argc, char *argv[])
{
    glfs_t *fs = NULL;
    int ret = 0, i, status = 0;
    glfs_fd_t *fd1 = NULL;
    glfs_fd_t *fd2 = NULL;
    glfs_fd_t *fd3 = NULL;
    char *filename = "file_tmp";
    char *volname = NULL;
    char *logfile = NULL;
    char *hostname = NULL;

    if (argc != 4) {
        fprintf(stderr, "Invalid argument\n");
        exit(1);
    }

    hostname = argv[1];
    volname = argv[2];
    logfile = argv[3];

    fs = glfs_new(volname);
    if (!fs) {
        fprintf(stderr, "glfs_new: returned NULL\n");
        return -1;
    }

    ret = glfs_set_volfile_server(fs, "tcp", hostname, 24007);
    LOG_ERR("glfs_set_volfile_server", ret);

    ret = glfs_set_logging(fs, logfile, 7);
    LOG_ERR("glfs_set_logging", ret);

    ret = glfs_init(fs);
    LOG_ERR("glfs_init", ret);

    fd1 = glfs_creat(fs, filename, O_RDWR | O_SYNC, 0644);
    if (fd1 <= 0) {
        ret = -1;
        LOG_ERR("glfs_creat", ret);
    }
    fprintf(stderr, "glfs-create fd1 - %d\n", fd1);

    fd2 = glfs_dup(fd1);
    fprintf(stderr, "glfs-dup fd2 - %d\n", fd2);

    fd3 = glfs_open(fs, filename, O_RDWR | O_SYNC);
    if (fd2 <= 0) {
        ret = -1;
        LOG_ERR("glfs_open", ret);
    }
    fprintf(stderr, "glfs-open fd3 - %d\n", fd3);

    /* TEST 1: Conflicting ranges, same lk_owner
     * lock1 (0, 10, lownera)
     * lock2 (5, 10, lownera)
     * Expected: should not fail but get merged
     */
    ret = lock_test(fd1, fd2, false, 0, 10, lownera, 8, 5, 10, lownera, 8);
    LOG_ERR("==== glfs_lock_test_1", ret);

    /* TEST 2: Conflicting ranges, different lk_owner
     * lock1 (0, 10, lownera) - already taken
     * lock2 (5, 10, lownerb)
     * Expected: should fail and not get merged
     */
    ret = lock_test(NULL, fd2, true, 0, 10, lownera, 8, 5, 10, lownerb, 8);
    LOG_ERR("==== glfs_lock_test_2", ret);

    /* TEST 3: Different ranges, same lk_owner
     * lock1 (0, 10, lownera) - already taken
     * lock2 (30, 10, lownera)
     * Expected: should not fail
     */
    ret = lock_test(NULL, fd2, false, 0, 10, lownera, 8, 30, 10, lownera, 8);
    LOG_ERR("==== glfs_lock_test_3", ret);

    /* TEST 4: Conflicting ranges, different lk_owner
     * lock1 (0, 10, lownera) - already taken
     * lock2 (50, 10, lownerb)
     * Expected: should not fail
     */
    ret = lock_test(NULL, fd2, false, 0, 10, lownera, 8, 50, 10, lownerb, 8);
    LOG_ERR("==== glfs_lock_test_4", ret);

    /* TEST 5: Close fd1 & retry TEST2
     * lock1 (not applicable)
     * lock2 (5, 10, lownerb)
     * Expected: should succeed now
     */
    ret = glfs_close(fd1);
    LOG_ERR("glfs_close", ret);

    ret = lock_test(NULL, fd2, false, 0, 10, lownera, 8, 5, 10, lownerb, 8);
    LOG_ERR("==== glfs_lock_test_5", ret);

    /* TEST 6: Check closing fd1 doesn't flush fd2 locks
     * retry TEST 4 but with fd2 and fd3.
     * lock1 (50, 10, lownerb) - already taken
     * lock2 (55, 10, lownerc)
     * Expected: should fail
     */
    ret = lock_test(NULL, fd3, true, 50, 10, lownerb, 8, 55, 10, lownerc, 8);
    LOG_ERR("==== glfs_lock_test_6", ret);

err:
    ret = glfs_close(fd2);
    LOG_ERR("glfs_close", ret);

    ret = glfs_close(fd3);
    LOG_ERR("glfs_close", ret);

out:
    if (fs) {
        ret = glfs_fini(fs);
        fprintf(stderr, "glfs_fini(fs) returned %d\n", ret);
    }

    if (ret)
        exit(1);
    exit(0);
}
示例#22
0
int
main (int argc, char *argv[])
{
	glfs_t    *fs = NULL;
	glfs_t    *fs2 = NULL;
	int        ret = 0;
	glfs_fd_t *fd = NULL;
	glfs_fd_t *fd2 = NULL;
	struct stat sb = {0, };
	char       readbuf[32];
	char       writebuf[32];

	char      *filename = "/filename2";

	fs = glfs_new ("fsync");
	if (!fs) {
		fprintf (stderr, "glfs_new: returned NULL\n");
		return 1;
	}

//	ret = glfs_set_volfile (fs, "/tmp/posix.vol");

	ret = glfs_set_volfile_server (fs, "tcp", "localhost", 24007);

//	ret = glfs_set_volfile_server (fs, "unix", "/tmp/gluster.sock", 0);

	ret = glfs_set_logging (fs, "/dev/stderr", 7);

	ret = glfs_init (fs);

	fprintf (stderr, "glfs_init: returned %d\n", ret);

	sleep (2);

	fs2 = glfs_new ("fsync");
	if (!fs2) {
		fprintf (stderr, "glfs_new: returned NULL\n");
		return 1;
	}


//	ret = glfs_set_volfile (fs2, "/tmp/posix.vol");

	ret = glfs_set_volfile_server (fs2, "tcp", "localhost", 24007);

	ret = glfs_set_logging (fs2, "/dev/stderr", 7);

	ret = glfs_init (fs2);

	fprintf (stderr, "glfs_init: returned %d\n", ret);

	ret = glfs_lstat (fs, filename, &sb);
	fprintf (stderr, "%s: (%d) %s\n", filename, ret, strerror (errno));

	fd = glfs_creat (fs, filename, O_RDWR, 0644);
	fprintf (stderr, "%s: (%p) %s\n", filename, fd, strerror (errno));

	fd2 = glfs_open (fs2, filename, O_RDWR);
	fprintf (stderr, "%s: (%p) %s\n", filename, fd, strerror (errno));

	sprintf (writebuf, "hi there\n");
	ret = glfs_write (fd, writebuf, 32, 0);

	glfs_lseek (fd2, 0, SEEK_SET);

	ret = glfs_read (fd2, readbuf, 32, 0);

	printf ("read %d, %s", ret, readbuf);

	glfs_close (fd);
	glfs_close (fd2);

	filename = "/filename3";
	ret = glfs_mknod (fs, filename, S_IFIFO, 0);
	fprintf (stderr, "%s: (%d) %s\n", filename, ret, strerror (errno));

	ret = glfs_lstat (fs, filename, &sb);
	fprintf (stderr, "%s: (%d) %s\n", filename, ret, strerror (errno));


	ret = glfs_rename (fs, filename, "/filename4");
	fprintf (stderr, "rename(%s): (%d) %s\n", filename, ret,
		 strerror (errno));

	ret = glfs_unlink (fs, "/filename4");
	fprintf (stderr, "unlink(%s): (%d) %s\n", "/filename4", ret,
		 strerror (errno));

	filename = "/dirname2";
	ret = glfs_mkdir (fs, filename, 0);
	fprintf (stderr, "%s: (%d) %s\n", filename, ret, strerror (errno));

	ret = glfs_lstat (fs, filename, &sb);
	fprintf (stderr, "lstat(%s): (%d) %s\n", filename, ret, strerror (errno));

	ret = glfs_rmdir (fs, filename);
	fprintf (stderr, "rmdir(%s): (%d) %s\n", filename, ret, strerror (errno));

	test_dirops (fs);

	test_xattr (fs);

	test_chdir (fs);

	// done

	glfs_fini (fs);
	glfs_fini (fs2);

	return ret;
}
示例#23
0
文件: gluster.c 项目: NormanM/qemu
static int qemu_gluster_open(BlockDriverState *bs,  QDict *options,
                             int bdrv_flags)
{
    BDRVGlusterState *s = bs->opaque;
    int open_flags = O_BINARY;
    int ret = 0;
    GlusterConf *gconf = g_malloc0(sizeof(GlusterConf));
    QemuOpts *opts;
    Error *local_err = NULL;
    const char *filename;

    opts = qemu_opts_create_nofail(&runtime_opts);
    qemu_opts_absorb_qdict(opts, options, &local_err);
    if (error_is_set(&local_err)) {
        qerror_report_err(local_err);
        error_free(local_err);
        ret = -EINVAL;
        goto out;
    }

    filename = qemu_opt_get(opts, "filename");


    s->glfs = qemu_gluster_init(gconf, filename);
    if (!s->glfs) {
        ret = -errno;
        goto out;
    }

    if (bdrv_flags & BDRV_O_RDWR) {
        open_flags |= O_RDWR;
    } else {
        open_flags |= O_RDONLY;
    }

    if ((bdrv_flags & BDRV_O_NOCACHE)) {
        open_flags |= O_DIRECT;
    }

    s->fd = glfs_open(s->glfs, gconf->image, open_flags);
    if (!s->fd) {
        ret = -errno;
        goto out;
    }

    ret = qemu_pipe(s->fds);
    if (ret < 0) {
        ret = -errno;
        goto out;
    }
    fcntl(s->fds[GLUSTER_FD_READ], F_SETFL, O_NONBLOCK);
    qemu_aio_set_fd_handler(s->fds[GLUSTER_FD_READ],
        qemu_gluster_aio_event_reader, NULL, s);

out:
    qemu_opts_del(opts);
    qemu_gluster_gconf_free(gconf);
    if (!ret) {
        return ret;
    }
    if (s->fd) {
        glfs_close(s->fd);
    }
    if (s->glfs) {
        glfs_fini(s->glfs);
    }
    return ret;
}
int
main (int argc, char *argv[])
{
        glfs_t                   *fs = NULL;
        glfs_t                   *fs2 = NULL;
        glfs_t                   *fs_tmp = NULL;
        glfs_t                   *fs_tmp2 = NULL;
        int                       ret = 0, i;
        glfs_fd_t                *fd = NULL;
        glfs_fd_t                *fd2 = NULL;
        glfs_fd_t                *fd_tmp = NULL;
        glfs_fd_t                *fd_tmp2 = NULL;
        char                      readbuf[32];
        char                     *filename = "file_tmp";
        char                     *writebuf = NULL;
        char                     *vol_id  = NULL;
        unsigned int              cnt = 1;
        struct glfs_upcall       *cbk = NULL;
        char                     *logfile = NULL;
        char                     *volname = NULL;
        char                     *hostname = NULL;

        if (argc != 4) {
                fprintf (stderr, "Invalid argument\n");
                exit(1);
        }

        hostname = argv[1];
        volname = argv[2];
        logfile = argv[3];

        fs = glfs_new (volname);
        if (!fs) {
                fprintf (stderr, "glfs_new: returned NULL\n");
                return -1;
        }

        ret = glfs_set_volfile_server (fs, "tcp", hostname, 24007);
        LOG_ERR("glfs_set_volfile_server", ret);

        ret = glfs_set_logging (fs, logfile, 7);
        LOG_ERR("glfs_set_logging", ret);

        ret = glfs_init (fs);
        LOG_ERR("glfs_init", ret);

        /* This does not block, but enables caching of events. Real
         * applications like NFS-Ganesha run this in a thread before activity
         * on the fs (through this instance) happens. */
        ret = glfs_h_poll_upcall(fs_tmp, &cbk);
        LOG_ERR ("glfs_h_poll_upcall", ret);

        fs2 = glfs_new (volname);
        if (!fs2) {
                fprintf (stderr, "glfs_new fs2: returned NULL\n");
                return 1;
        }

        ret = glfs_set_volfile_server (fs2, "tcp", hostname, 24007);
        LOG_ERR("glfs_set_volfile_server-fs2", ret);

        ret = glfs_set_logging (fs2, logfile, 7);
        LOG_ERR("glfs_set_logging-fs2", ret);

        ret = glfs_init (fs2);
        LOG_ERR("glfs_init-fs2", ret);

        fd = glfs_creat(fs, filename, O_RDWR|O_SYNC, 0644);
        if (fd <= 0) {
                ret = -1;
                LOG_ERR ("glfs_creat", ret);
        }
        fprintf (stderr, "glfs-create fd - %d\n", fd);

        fd2 = glfs_open(fs2, filename, O_SYNC|O_RDWR|O_CREAT);
        if (fd2 <= 0) {
                ret = -1;
                LOG_ERR ("glfs_open-fs2", ret);
        }
        fprintf (stderr, "glfs-open fd2 - %d\n", fd2);

        do {
                if (cnt%2) {
                        fd_tmp = fd;
                        fs_tmp = fs;
                        fd_tmp2 = fd2;
                        fs_tmp2 = fs2;
                } else {
                        fd_tmp = fd2;
                        fs_tmp = fs2;
                        fd_tmp2 = fd;
                        fs_tmp2 = fs;
                }

                /* WRITE on fd_tmp */
                writebuf = malloc(10);
                if (writebuf) {
                        memcpy (writebuf, "abcd", 4);
                        ret = glfs_write (fd_tmp, writebuf, 4, 0);
                        if (ret <= 0)   {
                                ret = -1;
                                LOG_ERR ("glfs_write", ret);
                        } else {
                                fprintf (stderr,
                                         "glfs_write suceeded\n");
                        }
                        free(writebuf);
                } else {
                        fprintf (stderr,
                                 "Could not allocate writebuf\n");
                        return -1;
                }

                /* READ on fd_tmp2 */
                ret = glfs_lseek (fd_tmp2, 0, SEEK_SET);
                LOG_ERR ("glfs_lseek", ret);

                memset (readbuf, 0, sizeof(readbuf));
                ret = glfs_pread (fd_tmp2, readbuf, 4, 0, 0, NULL);

                if (ret <= 0) {
                        ret = -1;
                        LOG_ERR ("glfs_pread", ret);
                } else {
                        fprintf (stderr, "glfs_read: %s\n", readbuf);
                }

                /* Open() fops seem to be not performed on server side until
                 * there are I/Os on that fd
                 */
                if (cnt > 2) {
                        struct glfs_upcall_inode *in_arg = NULL;
                        enum glfs_upcall_reason   reason = 0;
                        struct glfs_object       *object = NULL;
                        uint64_t                  flags = 0;
                        uint64_t                  expire = 0;

                        ret = glfs_h_poll_upcall(fs_tmp, &cbk);
                        LOG_ERR ("glfs_h_poll_upcall", ret);

                        reason = glfs_upcall_get_reason (cbk);

                        /* Expect 'GLFS_INODE_INVALIDATE' upcall event. */
                        if (reason == GLFS_UPCALL_INODE_INVALIDATE) {
                                in_arg = glfs_upcall_get_event (cbk);

                                object = glfs_upcall_inode_get_object (in_arg);
                                flags = glfs_upcall_inode_get_flags (in_arg);
                                expire = glfs_upcall_inode_get_expire (in_arg);

                                fprintf (stderr, " upcall event type - %d,"
                                         " object(%p), flags(%d), "
                                         " expire_time_attr(%d)\n" ,
                                         reason, object, flags, expire);
                        } else {
                                fprintf (stderr,
                                         "Didnt receive upcall notify event");
                                ret = -1;
                                goto err;
                        }

                        glfs_free (cbk);
                }

                sleep(5);
        } while (++cnt < 5);

err:
        glfs_close(fd);
        LOG_ERR ("glfs_close", ret);

        glfs_close(fd2);
        LOG_ERR ("glfs_close-fd2", ret);

out:
        if (fs) {
                ret = glfs_fini(fs);
                fprintf (stderr, "glfs_fini(fs) returned %d \n", ret);
        }

        if (fs2) {
                ret = glfs_fini(fs2);
                fprintf (stderr, "glfs_fini(fs2) returned %d \n", ret);
        }

        if (ret)
                exit(1);
        exit(0);
}
示例#25
0
文件: gluster.c 项目: Annovae/qemu
static int qemu_gluster_create(const char *filename,
        QEMUOptionParameter *options, Error **errp)
{
    struct glfs *glfs;
    struct glfs_fd *fd;
    int ret = 0;
    int prealloc = 0;
    int64_t total_size = 0;
    GlusterConf *gconf = g_malloc0(sizeof(GlusterConf));

    glfs = qemu_gluster_init(gconf, filename, errp);
    if (!glfs) {
        ret = -EINVAL;
        goto out;
    }

    while (options && options->name) {
        if (!strcmp(options->name, BLOCK_OPT_SIZE)) {
            total_size = options->value.n / BDRV_SECTOR_SIZE;
        } else if (!strcmp(options->name, BLOCK_OPT_PREALLOC)) {
            if (!options->value.s || !strcmp(options->value.s, "off")) {
                prealloc = 0;
            } else if (!strcmp(options->value.s, "full") &&
                    gluster_supports_zerofill()) {
                prealloc = 1;
            } else {
                error_setg(errp, "Invalid preallocation mode: '%s'"
                    " or GlusterFS doesn't support zerofill API",
                           options->value.s);
                ret = -EINVAL;
                goto out;
            }
        }
        options++;
    }

    fd = glfs_creat(glfs, gconf->image,
        O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, S_IRUSR | S_IWUSR);
    if (!fd) {
        ret = -errno;
    } else {
        if (!glfs_ftruncate(fd, total_size * BDRV_SECTOR_SIZE)) {
            if (prealloc && qemu_gluster_zerofill(fd, 0,
                    total_size * BDRV_SECTOR_SIZE)) {
                ret = -errno;
            }
        } else {
            ret = -errno;
        }

        if (glfs_close(fd) != 0) {
            ret = -errno;
        }
    }
out:
    qemu_gluster_gconf_free(gconf);
    if (glfs) {
        glfs_fini(glfs);
    }
    return ret;
}
示例#26
0
int
main(int argc, char *argv[])
{
    glfs_t *fs = NULL;
    glfs_t *fs2 = NULL;
    int ret = 0, i;
    glfs_fd_t *fd = NULL;
    char *filename = "/a1";
    char *filename2 = "/a2";
    struct stat sb = {
        0,
    };
    char *logfile = NULL;
    char *volname = NULL;
    char *hostname = NULL;
    int cnt = 1;
    int upcall_received = 0;
    struct glfs_upcall *cbk = NULL;
    struct glfs_object *root = NULL, *leaf = NULL;
    unsigned char globjhdl[GFAPI_HANDLE_LENGTH];
    unsigned char globjhdl2[GFAPI_HANDLE_LENGTH];

    fprintf(stderr, "Starting libgfapi_fini\n");
    if (argc != 4) {
        fprintf(stderr, "Invalid argument\n");
        exit(1);
    }

    hostname = argv[1];
    volname = argv[2];
    logfile = argv[3];

    fs = glfs_new(volname);
    if (!fs) {
        fprintf(stderr, "glfs_new: returned NULL\n");
        return 1;
    }

    ret = glfs_set_volfile_server(fs, "tcp", hostname, 24007);
    LOG_ERR("glfs_set_volfile_server", ret);

    ret = glfs_set_logging(fs, logfile, 7);
    LOG_ERR("glfs_set_logging", ret);

    ret = glfs_init(fs);
    LOG_ERR("glfs_init", ret);

    /* This does not block, but enables caching of events. Real
     * applications like NFS-Ganesha run this in a thread before activity
     * on the fs (through this instance) happens. */
    ret = glfs_h_poll_upcall(fs, &cbk);
    LOG_ERR("glfs_h_poll_upcall", ret);

    fs2 = glfs_new(volname);
    if (!fs) {
        fprintf(stderr, "glfs_new: returned NULL\n");
        return 1;
    }

    ret = glfs_set_volfile_server(fs2, "tcp", hostname, 24007);
    LOG_ERR("glfs_set_volfile_server", ret);

    ret = glfs_set_logging(fs2, logfile, 7);
    LOG_ERR("glfs_set_logging", ret);

    ret = glfs_init(fs2);
    LOG_ERR("glfs_init", ret);

    sleep(2);
    root = glfs_h_lookupat(fs, NULL, "/", &sb, 0);
    if (!root) {
        ret = -1;
        LOG_ERR("glfs_h_lookupat root", ret);
    }
    leaf = glfs_h_lookupat(fs, root, filename, &sb, 0);
    if (!leaf) {
        ret = -1;
        LOG_IF_NO_ERR("glfs_h_lookupat leaf", ret);
    }

    root = glfs_h_lookupat(fs2, NULL, "/", &sb, 0);
    if (!root) {
        ret = -1;
        LOG_ERR("glfs_h_lookupat root", ret);
    }
    leaf = glfs_h_creat(fs2, root, filename, O_RDWR, 0644, &sb);
    if (!leaf) {
        ret = -1;
        LOG_ERR("glfs_h_lookupat leaf", ret);
    }
    fprintf(stderr, "glfs_h_create leaf - %p\n", leaf);

    while (cnt++ < 5 && !upcall_received) {
        enum glfs_upcall_reason reason = 0;
        struct glfs_upcall_inode *in_arg = NULL;

        ret = glfs_h_poll_upcall(fs, &cbk);
        LOG_ERR("glfs_h_poll_upcall", ret);
        if (ret)
            goto retry;

        reason = glfs_upcall_get_reason(cbk);
        fprintf(stderr, "Upcall received(%d)\n", reason);

        if (reason == GLFS_UPCALL_INODE_INVALIDATE) {
            struct glfs_object *object = NULL;

            in_arg = glfs_upcall_get_event(cbk);
            object = glfs_upcall_inode_get_object(in_arg);

            ret = glfs_h_extract_handle(root, globjhdl + GLAPI_UUID_LENGTH,
                                        GFAPI_HANDLE_LENGTH);
            LOG_ERR("glfs_h_extract_handle", (ret != 16));

            ret = glfs_h_extract_handle(object, globjhdl2 + GLAPI_UUID_LENGTH,
                                        GFAPI_HANDLE_LENGTH);
            LOG_ERR("glfs_h_extract_handle", (ret != 16));

            if (memcmp(globjhdl + GLAPI_UUID_LENGTH,
                       globjhdl2 + GLAPI_UUID_LENGTH, 16)) {
                fprintf(stderr, "Error: gfid mismatch\n");
                exit(1);
            }
            upcall_received = 1;
        }

    retry:
        if (!upcall_received)
            sleep(1); /* glfs_h_poll_upcall() does not block */

        if (!ret) {
            glfs_free(cbk);
            cbk = NULL;
        }
    }

    if (!upcall_received) {
        fprintf(stderr, "Error: Upcall not received\n");
        exit(1);
    }

    ret = glfs_fini(fs);
    LOG_ERR("glfs_fini", ret);

    fprintf(stderr, "End of libgfapi_fini\n");

    exit(0);
}
示例#27
0
文件: glfs.c 项目: rootfs/tcmu-runner
static bool glfs_check_config(const char *cfgstring, char **reason)
{
	char *path;
	char *servername = NULL;
	char *volname = NULL;
	char *pathname = NULL;
	glfs_t *fs = NULL;
	glfs_fd_t *gfd = NULL;
	struct stat st;
	int ret;
	bool result = true;

	path = strchr(cfgstring, '/');
	if (!path) {
		if (asprintf(reason, "No path found") == -1)
			*reason = NULL;
		result = false;
		goto done;
	}
	path += 1; /* get past '/' */

	if (parse_imagepath(path, &servername, &volname, &pathname) == -1) {
		if (asprintf(reason, "Invalid imagepath") == -1)
			*reason = NULL;
		result = false;
		goto done;
	}

	/* Actually attempt to open the volume to verify things are working */
	/* TODO: consolidate this with v. similar tcmu_glfs_open code? */
	fs = glfs_new(volname);
	if (!fs) {
		if (asprintf(reason, "glfs_new failed") == -1)
			*reason = NULL;
		result = false;
		goto done;
	}

	ret = glfs_set_volfile_server(fs, "tcp", servername,
				      GLUSTER_PORT);
	if (ret) {
		if (asprintf(reason, "glfs_set_volfile_server failed: %m") == -1)
			*reason = NULL;
		result = false;
		goto done;
	}

	ret = glfs_init(fs);
	if (ret) {
		if (asprintf(reason, "glfs_init failed: %m") == -1)
			*reason = NULL;
		result = false;
		goto done;
	}

	gfd = glfs_open(fs, pathname, ALLOWED_BSOFLAGS);
	if (!gfd) {
		if (asprintf(reason, "glfs_open failed: %m") == -1)
			*reason = NULL;
		result = false;
		goto done;
	}

	ret = glfs_lstat(fs, pathname, &st);
	if (ret) {
		if (asprintf(reason, "glfs_lstat failed: %m") == -1)
			*reason = NULL;
		result = false;
		goto done;
	}

done:
	if (gfd)
		glfs_close(gfd);
	if (fs)
		glfs_fini(fs);
	free(servername);
	free(volname);
	free(pathname);

	return result;
}
示例#28
0
int
main(int argc, char *argv[])
{
    int ret = -1;
    int flags = O_RDWR | O_SYNC;
    glfs_t *fs = NULL;
    glfs_fd_t *fd = NULL;
    char *volname = NULL;
    char *logfile = NULL;
    const char *filename = "file_tmp";
    struct glfs_object *object = NULL;
    acl_t acl = NULL;
    struct stat sb;

    if (argc != 3) {
        fprintf(stderr, "Invalid argument\n");
        return 1;
    }

    volname = argv[1];
    logfile = argv[2];

    fs = glfs_new(volname);
    if (!fs)
        VALIDATE_AND_GOTO_LABEL_ON_ERROR("glfs_new", ret, out);

    ret = glfs_set_volfile_server(fs, "tcp", "localhost", 24007);
    VALIDATE_AND_GOTO_LABEL_ON_ERROR("glfs_set_volfile_server", ret, out);

    ret = glfs_set_logging(fs, logfile, 7);
    VALIDATE_AND_GOTO_LABEL_ON_ERROR("glfs_set_logging", ret, out);

    ret = glfs_init(fs);
    VALIDATE_AND_GOTO_LABEL_ON_ERROR("glfs_init", ret, out);

    fd = glfs_creat(fs, filename, flags, 0044);
    if (fd == NULL) {
        ret = -1;
        VALIDATE_AND_GOTO_LABEL_ON_ERROR("glfs_creat", ret, out);
    }
    glfs_close(fd);

    object = glfs_h_lookupat(fs, NULL, filename, NULL, 0);
    if (object == NULL) {
        ret = -1;
        VALIDATE_AND_GOTO_LABEL_ON_ERROR("glfs_h_lookupat", ret, out);
    }

    ret = glfs_chown(fs, filename, 99, 99);
    VALIDATE_AND_GOTO_LABEL_ON_ERROR("glfs_chown", ret, out);

    ret = glfs_setfsuid(99);
    VALIDATE_AND_GOTO_LABEL_ON_ERROR("glfs_setfsuid", ret, out);

    ret = glfs_setfsgid(99);
    VALIDATE_AND_GOTO_LABEL_ON_ERROR("glfs_setfsgid", ret, out);

    acl = glfs_h_acl_get(fs, object, ACL_TYPE_ACCESS);
    if (acl == NULL) {
        ret = -1;
        VALIDATE_AND_GOTO_LABEL_ON_ERROR("glfs_h_acl_get", ret, out);
    }

    ret = glfs_h_acl_set(fs, object, ACL_TYPE_ACCESS, acl);
    VALIDATE_AND_GOTO_LABEL_ON_ERROR("glfs_h_acl_get", ret, out);
out:
    glfs_setfsuid(0);
    glfs_setfsgid(0);

    if (object)
        glfs_h_close(object);

    if (fs)
        glfs_fini(fs);

    return ret;
}
示例#29
0
int
main(int argc, char *argv[])
{
    int ret = 1;
    int opcode = -1;
    off_t offset = 0;
    size_t len = 0;
    glfs_t *fs = NULL;
    glfs_fd_t *fd = NULL;

    if (argc != 8) {
        fprintf(stderr,
                "Syntax: %s <host> <volname> <opcode> <offset> <len> "
                "<file-path> <log-file>\n",
                argv[0]);
        return 1;
    }

    fs = glfs_new(argv[2]);
    if (!fs) {
        fprintf(stderr, "glfs_new: returned NULL\n");
        return 1;
    }

    ret = glfs_set_volfile_server(fs, "tcp", argv[1], 24007);
    if (ret != 0) {
        fprintf(stderr, "glfs_set_volfile_server: returned %d\n", ret);
        goto out;
    }

    ret = glfs_set_logging(fs, argv[7], 7);
    if (ret != 0) {
        fprintf(stderr, "glfs_set_logging: returned %d\n", ret);
        goto out;
    }

    ret = glfs_init(fs);
    if (ret != 0) {
        fprintf(stderr, "glfs_init: returned %d\n", ret);
        goto out;
    }

    opcode = atoi(argv[3]);
    opcode = get_fallocate_flag(opcode);
    if (opcode < 0) {
        fprintf(stderr, "get_fallocate_flag: invalid flag \n");
        goto out;
    }

    offset = atoi(argv[4]);
    len = atoi(argv[5]);

    fd = glfs_open(fs, argv[6], O_RDWR);
    if (fd == NULL) {
        fprintf(stderr, "glfs_open: returned NULL\n");
        goto out;
    }

    ret = glfs_fallocate(fd, opcode, offset, len);
    if (ret <= 0) {
        fprintf(stderr, "glfs_fallocate: returned %d\n", ret);
        goto out;
    }

    ret = 0;

out:
    if (fd)
        glfs_close(fd);
    glfs_fini(fs);
    return ret;
}
示例#30
0
文件: glfs.c 项目: rootfs/tcmu-runner
static int tcmu_glfs_open(struct tcmu_device *dev)
{
	struct glfs_state *gfsp;
	int ret = 0;
	char *config;
	struct stat st;
	int attribute;

	gfsp = calloc(1, sizeof(*gfsp));
	if (!gfsp)
		return -ENOMEM;

	tcmu_set_dev_private(dev, gfsp);

	attribute = tcmu_get_attribute(dev, "hw_block_size");
	if (attribute == -1) {
		errp("Could not get hw_block_size setting\n");
		goto fail;
	}
	gfsp->block_size = attribute;

	config = strchr(tcmu_get_dev_cfgstring(dev), '/');
	if (!config) {
		errp("no configuration found in cfgstring\n");
		goto fail;
	}
	config += 1; /* get past '/' */

	if (parse_imagepath(config, &gfsp->servername, &gfsp->volname, &gfsp->pathname) == -1) {
		errp("servername, volname, or pathname not set\n");
		goto fail;
	}

	gfsp->fs = glfs_new(gfsp->volname);
	if (!gfsp->fs) {
		errp("glfs_new failed\n");
		goto fail;
	}

	ret = glfs_set_volfile_server(gfsp->fs, "tcp", gfsp->servername,
				      GLUSTER_PORT);
	if (ret) {
		errp("glfs_set_volfile_server failed: %m\n");
		goto fail;
	}


	ret = glfs_init(gfsp->fs);
	if (ret) {
		errp("glfs_init failed: %m\n");
		goto fail;
	}

	gfsp->gfd = glfs_open(gfsp->fs, gfsp->pathname, ALLOWED_BSOFLAGS);
	if (!gfsp->gfd) {
		errp("glfs_open failed: %m\n");
		goto fail;
	}

	ret = glfs_lstat(gfsp->fs, gfsp->pathname, &st);
	if (ret) {
		errp("glfs_lstat failed: %m\n");
		goto fail;
	}

	if (st.st_size != tcmu_get_device_size(dev)) {
		errp("device size and backing size disagree: "
		       "device %lld backing %lld\n",
		       tcmu_get_device_size(dev),
		       (long long) st.st_size);
		goto fail;
	}

	return 0;

fail:
	if (gfsp->gfd)
		glfs_close(gfsp->gfd);
	if (gfsp->fs)
		glfs_fini(gfsp->fs);
	free(gfsp->volname);
	free(gfsp->pathname);
	free(gfsp->servername);
	free(gfsp);

	return -EIO;
}