-/* -*- 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.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 only,
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License version 2 for more details (a copy is included
+ * 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
+ * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
+ *
+ * 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.
+ *
+ * GPL HEADER END
+ */
+/*
+ * Copyright (c) 2004, 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/
+ * Lustre is a trademark of Sun Microsystems, Inc.
+ *
+ * lustre/tests/ll_dirstripe_verify.c
*
* ll_dirstripe_verify <dir> <file>:
* - to verify if the file has the same lov_user_md setting as the parent dir.
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
+#include <ctype.h>
#include <sys/ioctl.h>
#include <unistd.h>
#include <fcntl.h>
#include <dirent.h>
#include <liblustre.h>
-#include <linux/obd.h>
-#include <linux/lustre_lib.h>
-#include <lustre/lustre_user.h>
-#include <linux/obd_lov.h>
+#include <obd.h>
+#include <lustre_lib.h>
+#include <lustre/lustreapi.h>
+#include <obd_lov.h>
-#include <portals/ptlctl.h>
+#include <lnet/lnetctl.h>
#define MAX_LOV_UUID_COUNT 1000
+union {
+ struct obd_uuid uuid;
+ char name[0];
+} lov;
+#define lov_uuid lov.uuid
+#define lov_name lov.name
+
+/* Returns bytes read on success and a negative value on failure.
+ * If zero bytes are read it will be treated as failure as such
+ * zero cannot be returned from this function.
+ */
+int read_proc_entry(char *proc_path, char *buf, int len)
+{
+ int rc, fd;
+
+ memset(buf, 0, len);
+
+ fd = open(proc_path, O_RDONLY);
+ if (fd == -1) {
+ llapi_error(LLAPI_MSG_ERROR, -errno, "open('%s') failed: %s\n",
+ proc_path);
+ return -2;
+ }
+
+ rc = read(fd, buf, len - 1);
+ if (rc < 0) {
+ llapi_error(LLAPI_MSG_ERROR, -errno,
+ "read('%s') failed: %s\n", proc_path);
+ rc = -3;
+ } else if (rc == 0) {
+ llapi_err_noerrno(LLAPI_MSG_ERROR,
+ "read('%s') zero bytes\n", proc_path);
+ rc = -4;
+ } else if (/* rc > 0 && */ buf[rc - 1] == '\n') {
+ buf[rc - 1] = '\0'; /* Remove trailing newline */
+ }
+ close(fd);
+
+ return (rc);
+}
int compare(struct lov_user_md *lum_dir, struct lov_user_md *lum_file1,
struct lov_user_md *lum_file2)
{
- int stripe_count;
- int stripe_size;
- int stripe_offset;
+ int stripe_count = 0, min_stripe_count = 0, def_stripe_count = 1;
+ int stripe_size = 0;
+ int stripe_offset = -1;
int ost_count;
- int fd;
- char buf[32];
+ char buf[128];
+ char lov_path[PATH_MAX];
+ char tmp_path[PATH_MAX];
int i;
+ FILE *fp;
+
+ fp = popen("\\ls -d /proc/fs/lustre/lov/*clilov* | head -1", "r");
+ if (!fp) {
+ llapi_error(LLAPI_MSG_ERROR, -errno,
+ "open(lustre/lov/*clilov*) failed: %s\n");
+ return 2;
+ }
+ if (fscanf(fp, "%s", lov_path) < 1) {
+ llapi_error(LLAPI_MSG_ERROR, -EINVAL,
+ "read(lustre/lov/*clilov*) failed: %s\n");
+ pclose(fp);
+ return 3;
+ }
+ pclose(fp);
+
+ snprintf(tmp_path, sizeof(tmp_path) - 1, "%s/stripecount",
+ lov_path);
+ if (read_proc_entry(tmp_path, buf, sizeof(buf)) < 0)
+ return 5;
+ def_stripe_count = (short)atoi(buf);
+
+ snprintf(tmp_path, sizeof(tmp_path) - 1, "%s/numobd", lov_path);
+ if (read_proc_entry(tmp_path, buf, sizeof(buf)) < 0)
+ return 6;
+ ost_count = atoi(buf);
+
+ if (lum_dir == NULL) {
+ stripe_count = def_stripe_count;
+ min_stripe_count = -1;
+ } else {
+ stripe_count = (signed short)lum_dir->lmm_stripe_count;
+ printf("dir stripe %d, ", stripe_count);
+ min_stripe_count = 1;
+ }
+
+ printf("default stripe %d, ost count %d\n",
+ def_stripe_count, ost_count);
- stripe_count = (int)lum_dir->lmm_stripe_count;
if (stripe_count == 0) {
- fd = open("/proc/fs/lustre/lov/lov1/stripecount", O_RDONLY);
- if (fd == -1) {
- fprintf(stderr, "open proc file error: %s\n",
- strerror(errno));
- return -1;
- }
- if (read(fd, buf, sizeof(buf)) == -1) {
- fprintf(stderr, "read proc file error: %s\n",
- strerror(errno));
- close(fd);
- return -1;
- }
-
- stripe_count = atoi(buf);
- stripe_count = stripe_count ? stripe_count : 1;
- close(fd);
+ min_stripe_count = -1;
+ stripe_count = 1;
+ }
+
+ stripe_count = (stripe_count > 0 && stripe_count <= ost_count) ?
+ stripe_count : ost_count;
+ min_stripe_count = min_stripe_count > 0 ? stripe_count :
+ ((stripe_count + 1) / 2);
+
+ if (lum_file1->lmm_stripe_count != stripe_count ||
+ lum_file1->lmm_stripe_count < min_stripe_count) {
+ llapi_err_noerrno(LLAPI_MSG_ERROR,
+ "file1 stripe count %d != dir %d\n",
+ lum_file1->lmm_stripe_count, stripe_count);
+ return 7;
}
- stripe_size = (int)lum_dir->lmm_stripe_size;
+ if (lum_file1->lmm_stripe_count < stripe_count)
+ llapi_err_noerrno(LLAPI_MSG_WARN,
+ "warning: file1 used fewer stripes"
+ " %d < dir %d (likely due to bug 4900)\n",
+ lum_file1->lmm_stripe_count, stripe_count);
+
+ if (lum_dir != NULL)
+ stripe_size = (int)lum_dir->lmm_stripe_size;
if (stripe_size == 0) {
- fd = open("/proc/fs/lustre/lov/lov1/stripesize", O_RDONLY);
- if (fd == -1) {
- fprintf(stderr, "open proc file error: %s\n",
- strerror(errno));
- return -1;
- }
- if (read(fd, buf, sizeof(buf)) == -1) {
- fprintf(stderr, "read proc file error: %s\n",
- strerror(errno));
- close(fd);
- return -1;
- }
+ snprintf(tmp_path, sizeof(tmp_path) - 1, "%s/stripesize",
+ lov_path);
+ if (read_proc_entry(tmp_path, buf, sizeof(buf)) < 0)
+ return 5;
stripe_size = atoi(buf);
- close(fd);
}
- fd = open("/proc/fs/lustre/lov/lov1/numobd", O_RDONLY);
- if(fd == -1) {
- fprintf(stderr, "open proc file error: %s\n",
- strerror(errno));
- return -1;
- }
- if (read(fd, buf, sizeof(buf)) == -1) {
- fprintf(stderr, "read proc file error: %s\n",
- strerror(errno));
- close(fd);
- return -1;
+ if (lum_file1->lmm_stripe_size != stripe_size) {
+ llapi_err_noerrno(LLAPI_MSG_ERROR,
+ "file1 stripe size %d != dir %d\n",
+ lum_file1->lmm_stripe_size, stripe_size);
+ return 8;
}
- ost_count = atoi(buf);
- close(fd);
-
- if ((lum_file1->lmm_stripe_count != stripe_count) ||
- (lum_file1->lmm_stripe_size != stripe_size))
- return -1;
-
- stripe_offset = (short int)lum_dir->lmm_stripe_offset;
+ if (lum_dir != NULL)
+ stripe_offset = (short int)lum_dir->lmm_stripe_offset;
if (stripe_offset != -1) {
for (i = 0; i < stripe_count; i++)
- if (lum_file1->lmm_objects[i].l_ost_idx !=
- (stripe_offset + i) % ost_count)
- return -1;
+ if (lum_file1->lmm_objects[i].l_ost_idx !=
+ (stripe_offset + i) % ost_count) {
+ llapi_err_noerrno(LLAPI_MSG_WARN,
+ "warning: file1 non-sequential "
+ "stripe[%d] %d != %d\n", i,
+ lum_file1->lmm_objects[i].l_ost_idx,
+ (stripe_offset + i) % ost_count);
+ }
} else if (lum_file2 != NULL) {
- int next, idx;
- next = (lum_file1->lmm_objects[stripe_count-1].l_ost_idx + 1)
- % ost_count;
+ int next, idx, stripe = stripe_count - 1;
+ next = (lum_file1->lmm_objects[stripe].l_ost_idx + 1) %
+ ost_count;
idx = lum_file2->lmm_objects[0].l_ost_idx;
- if (idx != next)
- return -1;
+ if (idx != next) {
+ llapi_err_noerrno(LLAPI_MSG_WARN,
+ "warning: non-sequential "
+ "file1 stripe[%d] %d != file2 stripe[0] %d\n",
+ stripe, lum_file1->lmm_objects[stripe].l_ost_idx,
+ idx);
+ }
}
- return 0;
+ return 0;
}
int main(int argc, char **argv)
{
DIR * dir;
- struct lov_user_md *lum_dir, *lum_file1, *lum_file2=NULL;
+ struct lov_user_md *lum_dir, *lum_file1 = NULL, *lum_file2 = NULL;
int rc;
int lum_size;
- char *fname;
if (argc < 3) {
- fprintf(stderr, "Usage: %s <dirname> <filename1> [filename2]\n",
- argv[0]);
- exit(1);
+ llapi_err_noerrno(LLAPI_MSG_ERROR,
+ "Usage: %s <dirname> <filename1> [filename2]\n",
+ argv[0]);
+ return 1;
}
dir = opendir(argv[1]);
- if (dir == NULL) {
- fprintf(stderr, "%s opendir failed\n", argv[1]);
- return errno;
+ if (dir == NULL) {
+ rc = -errno;
+ llapi_error(LLAPI_MSG_ERROR, rc,
+ "error: %s opendir failed\n", argv[1]);
+ return rc;
}
- lum_size = lov_mds_md_size(MAX_LOV_UUID_COUNT);
- if ((lum_dir = (struct lov_user_md *)malloc(lum_size)) == NULL) {
- fprintf(stderr, "unable to allocate memory for ioctl's");
- return errno;
- }
+ lum_size = lov_user_md_size(MAX_LOV_UUID_COUNT, LOV_USER_MAGIC);
+ lum_dir = (struct lov_user_md *)malloc(lum_size);
+ if (lum_dir == NULL) {
+ rc = -ENOMEM;
+ llapi_error(LLAPI_MSG_ERROR, rc,
+ "error: can't allocate %d bytes "
+ "for dir EA", lum_size);
+ goto cleanup;
+ }
- rc = ioctl(dirfd(dir), LL_IOC_LOV_GETSTRIPE, lum_dir);
+ rc = llapi_file_get_stripe(argv[1], lum_dir);
if (rc) {
- if (errno == ENODATA) {
- lum_dir->lmm_stripe_size = 0;
- lum_dir->lmm_stripe_count = 0;
- lum_dir->lmm_stripe_offset = -1;
+ if (rc == -ENODATA) {
+ free(lum_dir);
+ lum_dir = NULL;
} else {
- rc = errno;
+ llapi_error(LLAPI_MSG_ERROR, rc,
+ "error: can't get EA for %s\n", argv[1]);
goto cleanup;
- }
+ }
+ }
+
+ /* XXX should be llapi_lov_getname() */
+ rc = llapi_file_get_lov_uuid(argv[1], &lov_uuid);
+ if (rc) {
+ llapi_error(LLAPI_MSG_ERROR, rc,
+ "error: can't get lov name for %s\n",
+ argv[1]);
+ return rc;
}
if ((lum_file1 = (struct lov_user_md *)malloc(lum_size)) == NULL) {
- fprintf(stderr, "unable to allocate memory for ioctl's");
- rc = errno;
+ rc = -ENOMEM;
+ llapi_error(LLAPI_MSG_ERROR, rc,
+ "error: can't allocate %d bytes for EA\n",
+ lum_size);
goto cleanup;
}
- fname = strrchr(argv[2], '/');
- fname++;
- strncpy((char *)lum_file1, fname, lum_size);
- rc = ioctl(dirfd(dir), IOC_MDC_GETSTRIPE, lum_file1);
+ rc = llapi_file_get_stripe(argv[2], lum_file1);
if (rc) {
- rc = errno;
+ llapi_error(LLAPI_MSG_ERROR, rc,
+ "error: unable to get EA for %s\n", argv[2]);
goto cleanup;
}
if (argc == 4) {
- if ((lum_file2 = (struct lov_user_md *)malloc(lum_size))
- == NULL) {
- fprintf(stderr,
- "unable to allocate memory for ioctl's");
- rc = errno;
+ lum_file2 = (struct lov_user_md *)malloc(lum_size);
+ if (lum_file2 == NULL) {
+ rc = -ENOMEM;
+ llapi_error(LLAPI_MSG_ERROR, rc,
+ "error: can't allocate %d "
+ "bytes for file2 EA\n", lum_size);
goto cleanup;
}
- fname = strrchr(argv[3], '/');
- fname++;
- strncpy((char *)lum_file2, fname, lum_size);
- rc = ioctl(dirfd(dir), IOC_MDC_GETSTRIPE, lum_file2);
+ rc = llapi_file_get_stripe(argv[3], lum_file2);
if (rc) {
- rc = errno;
+ llapi_error(LLAPI_MSG_ERROR, rc,
+ "error: can't get EA for %s\n", argv[3]);
goto cleanup;
}
}
rc = compare(lum_dir, lum_file1, lum_file2);
cleanup:
+ closedir(dir);
if (lum_dir != NULL)
free(lum_dir);
if (lum_file1 != NULL)
git://git.whamcloud.com / fs / lustre-release.git / blobdiff