*
* 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.
+ * http://www.gnu.org/licenses/gpl-2.0.html
*
* GPL HEADER END
*/
* Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
- * Copyright (c) 2011, 2013, Intel Corporation.
+ * Copyright (c) 2011, 2016, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
#define _GNU_SOURCE
#endif
+#include <mntent.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <stdarg.h>
#include <sys/stat.h>
#include <sys/statfs.h>
-#include <sys/types.h>
#include <sys/syscall.h>
+#include <sys/time.h>
+#include <sys/types.h>
#include <sys/xattr.h>
+#include <time.h>
#include <fnmatch.h>
-#include <glob.h>
#include <libgen.h> /* for dirname() */
#ifdef HAVE_LINUX_UNISTD_H
#include <linux/unistd.h>
#endif
#include <poll.h>
-#include <libcfs/libcfs.h>
+#include <libcfs/util/param.h>
+#include <libcfs/util/string.h>
#include <lnet/lnetctl.h>
#include <lustre/lustreapi.h>
+#include <lustre/lustre_ostid.h>
#include <lustre_ioctl.h>
#include "lustreapi_internal.h"
static int llapi_msg_level = LLAPI_MSG_MAX;
+char *mdt_hash_name[] = { "none",
+ LMV_HASH_NAME_ALL_CHARS,
+ LMV_HASH_NAME_FNV_1A_64 };
+
void llapi_msg_set_level(int level)
{
/* ensure level is in the good range */
int llapi_parse_size(const char *optarg, unsigned long long *size,
unsigned long long *size_units, int bytes_spec)
{
- char *end;
-
- if (strncmp(optarg, "-", 1) == 0)
- return -1;
-
- if (*size_units == 0)
- *size_units = 1;
-
- *size = strtoull(optarg, &end, 0);
-
- if (*end != '\0') {
- if ((*end == 'b') && *(end + 1) == '\0' &&
- (*size & (~0ULL << (64 - 9))) == 0 &&
- !bytes_spec) {
- *size_units = 1 << 9;
- } else if ((*end == 'b') &&
- *(end + 1) == '\0' &&
- bytes_spec) {
- *size_units = 1;
- } else if ((*end == 'k' || *end == 'K') &&
- *(end + 1) == '\0' &&
- (*size & (~0ULL << (64 - 10))) == 0) {
- *size_units = 1 << 10;
- } else if ((*end == 'm' || *end == 'M') &&
- *(end + 1) == '\0' &&
- (*size & (~0ULL << (64 - 20))) == 0) {
- *size_units = 1 << 20;
- } else if ((*end == 'g' || *end == 'G') &&
- *(end + 1) == '\0' &&
- (*size & (~0ULL << (64 - 30))) == 0) {
- *size_units = 1 << 30;
- } else if ((*end == 't' || *end == 'T') &&
- *(end + 1) == '\0' &&
- (*size & (~0ULL << (64 - 40))) == 0) {
- *size_units = 1ULL << 40;
- } else if ((*end == 'p' || *end == 'P') &&
- *(end + 1) == '\0' &&
- (*size & (~0ULL << (64 - 50))) == 0) {
- *size_units = 1ULL << 50;
- } else if ((*end == 'e' || *end == 'E') &&
- *(end + 1) == '\0' &&
- (*size & (~0ULL << (64 - 60))) == 0) {
- *size_units = 1ULL << 60;
- } else {
- return -1;
- }
- }
- *size *= *size_units;
- return 0;
+ char *end;
+ char *argbuf = (char *)optarg;
+ unsigned long long frac = 0, frac_d = 1;
+
+ if (strncmp(optarg, "-", 1) == 0)
+ return -1;
+
+ if (*size_units == 0)
+ *size_units = 1;
+
+ *size = strtoull(argbuf, &end, 0);
+ if (end != NULL && *end == '.') {
+ int i;
+
+ argbuf = end + 1;
+ frac = strtoull(argbuf, &end, 10);
+ /* count decimal places */
+ for (i = 0; i < (end - argbuf); i++)
+ frac_d *= 10;
+ }
+
+ if (*end != '\0') {
+ if ((*end == 'b') && *(end + 1) == '\0' &&
+ (*size & (~0ULL << (64 - 9))) == 0 &&
+ !bytes_spec) {
+ *size_units = 1 << 9;
+ } else if ((*end == 'b') &&
+ *(end + 1) == '\0' &&
+ bytes_spec) {
+ *size_units = 1;
+ } else if ((*end == 'k' || *end == 'K') &&
+ *(end + 1) == '\0' &&
+ (*size & (~0ULL << (64 - 10))) == 0) {
+ *size_units = 1 << 10;
+ } else if ((*end == 'm' || *end == 'M') &&
+ *(end + 1) == '\0' &&
+ (*size & (~0ULL << (64 - 20))) == 0) {
+ *size_units = 1 << 20;
+ } else if ((*end == 'g' || *end == 'G') &&
+ *(end + 1) == '\0' &&
+ (*size & (~0ULL << (64 - 30))) == 0) {
+ *size_units = 1 << 30;
+ } else if ((*end == 't' || *end == 'T') &&
+ *(end + 1) == '\0' &&
+ (*size & (~0ULL << (64 - 40))) == 0) {
+ *size_units = 1ULL << 40;
+ } else if ((*end == 'p' || *end == 'P') &&
+ *(end + 1) == '\0' &&
+ (*size & (~0ULL << (64 - 50))) == 0) {
+ *size_units = 1ULL << 50;
+ } else if ((*end == 'e' || *end == 'E') &&
+ *(end + 1) == '\0' &&
+ (*size & (~0ULL << (64 - 60))) == 0) {
+ *size_units = 1ULL << 60;
+ } else {
+ return -1;
+ }
+ }
+ *size = *size * *size_units + frac * *size_units / frac_d;
+
+ return 0;
}
/* XXX: llapi_xxx() functions return negative values upon failure */
stripe_size, page_size);
return rc;
}
- if (!llapi_stripe_offset_is_valid(stripe_offset)) {
+ if (!llapi_stripe_index_is_valid(stripe_offset)) {
rc = -EINVAL;
llapi_error(LLAPI_MSG_ERROR, rc, "error: bad stripe offset %d",
stripe_offset);
return 0;
}
-/* return the first file matching this pattern */
-static int first_match(char *pattern, char *buffer)
-{
- glob_t glob_info;
-
- if (glob(pattern, GLOB_BRACE, NULL, &glob_info))
- return -ENOENT;
-
- if (glob_info.gl_pathc < 1) {
- globfree(&glob_info);
- return -ENOENT;
- }
-
- strcpy(buffer, glob_info.gl_pathv[0]);
-
- globfree(&glob_info);
- return 0;
-}
-
-static int find_target_obdpath(char *fsname, char *path)
-{
- glob_t glob_info;
- char pattern[PATH_MAX + 1];
- int rc;
-
- snprintf(pattern, PATH_MAX,
- "/proc/fs/lustre/lov/%s-*/target_obd",
- fsname);
- rc = glob(pattern, GLOB_BRACE, NULL, &glob_info);
- if (rc == GLOB_NOMATCH)
- return -ENODEV;
- else if (rc)
- return -EINVAL;
-
- strcpy(path, glob_info.gl_pathv[0]);
- globfree(&glob_info);
- return 0;
-}
-
-static int find_poolpath(char *fsname, char *poolname, char *poolpath)
-{
- glob_t glob_info;
- char pattern[PATH_MAX + 1];
- int rc;
-
- snprintf(pattern, PATH_MAX,
- "/proc/fs/lustre/lov/%s-*/pools/%s",
- fsname, poolname);
- rc = glob(pattern, GLOB_BRACE, NULL, &glob_info);
- /* If no pools, make sure the lov is available */
- if ((rc == GLOB_NOMATCH) &&
- (find_target_obdpath(fsname, poolpath) == -ENODEV))
- return -ENODEV;
- if (rc)
- return -EINVAL;
-
- strcpy(poolpath, glob_info.gl_pathv[0]);
- globfree(&glob_info);
- return 0;
-}
-
/*
* Trim a trailing newline from a string, if it exists.
*/
return '\n';
}
-/**
- * return a parameter string for a specific device type or mountpoint
- *
- * \param param_path the path to the file containing parameter data
- * \param result buffer for parameter value string
- * \param result_size size of buffer for return value
- *
- * The \param param_path is appended to /proc/{fs,sys}/{lnet,lustre} to
- * complete the absolute path to the file containing the parameter data
- * the user is requesting. If that file exist then the data is read from
- * the file and placed into the \param result buffer that is passed by
- * the user. Data is only copied up to the \param result_size to prevent
- * overflow of the array.
- *
- * Return 0 for success, with a NUL-terminated string in \param result.
- * Return -ve value for error.
- */
-int get_param(const char *param_path, char *result,
- unsigned int result_size)
-{
- char file[PATH_MAX + 1], pattern[PATH_MAX + 1], buf[result_size];
- FILE *fp = NULL;
- int rc = 0;
-
- snprintf(pattern, PATH_MAX, "/proc/{fs,sys}/{lnet,lustre}/%s",
- param_path);
- rc = first_match(pattern, file);
- if (rc != 0 || result == NULL)
- return rc;
-
- fp = fopen(file, "r");
- if (fp != NULL) {
- while (fgets(buf, result_size, fp) != NULL)
- strcpy(result, buf);
- fclose(fp);
- } else {
- rc = -errno;
- }
- return rc;
-}
-
-#define DEVICES_LIST "/proc/fs/lustre/devices"
-
-/**
- * return a parameter string for a specific device type or mountpoint
- *
- * \param fsname Lustre filesystem name (optional)
- * \param file_path path to file in filesystem (optional, if fsname unset)
- * \param obd_type Lustre OBD device type
- * \param param_name parameter name to fetch
- * \param value return buffer for parameter value string
- * \param val_len size of buffer for return value
- *
- * If fsname is specified then the parameter will be from that filesystem
- * (if it exists). If file_path is given and it is in a mounted Lustre
- * filesystem, then the parameter will be otherwise the value may be
- * from any mounted filesystem (if there is more than one).
- *
- * If "obd_type" matches a Lustre device then the first matching device
- * (as with "lctl dl", constrained by \param fsname or \param mount_path)
- * will be used to provide the return value, otherwise the first such
- * device found will be used.
- *
- * Return 0 for success, with a NUL-terminated string in \param buffer.
- * Return -ve value for error.
- */
-static int get_param_obdvar(const char *fsname, const char *file_path,
- const char *obd_type, const char *param_name,
- char *value, unsigned int val_len)
-{
- char devices[PATH_MAX];
- char dev[PATH_MAX] = "*";
- char fs[PATH_MAX];
- FILE *fp = NULL;
- int rc = 0;
-
- fp = fopen(DEVICES_LIST, "r");
- if (fp == NULL) {
- rc = -errno;
- llapi_error(LLAPI_MSG_ERROR, rc, "error: opening "DEVICES_LIST);
- goto out;
- }
-
- if (fsname == NULL && file_path != NULL) {
- rc = llapi_search_fsname(file_path, fs);
- if (rc) {
- llapi_error(LLAPI_MSG_ERROR, rc,
- "'%s' is not on a Lustre filesystem",
- file_path);
- goto out;
- }
- } else if (fsname != NULL) {
- rc = strlcpy(fs, fsname, sizeof(fs));
- if (rc >= sizeof(fs)) {
- rc = -E2BIG;
- goto out;
- }
- }
-
- while (fgets(devices, sizeof(devices) - 1, fp) != NULL) {
- char *bufp = devices, *tmp;
-
- devices[sizeof(devices) - 1] = '\0';
- while (bufp[0] == ' ')
- ++bufp;
-
- tmp = strstr(bufp, obd_type);
- if (tmp != NULL) {
- tmp += strlen(obd_type) + 1;
- if (strcmp(tmp, fs))
- continue;
- rc = strlcpy(dev, tmp, sizeof(dev));
- if (rc >= sizeof(dev)) {
- rc = -E2BIG;
- goto out;
- }
-
- tmp = strchr(dev, ' ');
- if (tmp != NULL)
- *tmp = '\0';
- break;
- }
- }
-
- if (dev[0] == '*' && strlen(fs)) {
- rc = snprintf(dev, sizeof(dev), "%s-*", fs);
- if (rc >= sizeof(dev)) {
- rc = -E2BIG;
- goto out;
- }
- }
- rc = snprintf(devices, sizeof(devices), "%s/%s/%s", obd_type, dev,
- param_name);
- if (rc >= sizeof(devices)) {
- rc = -E2BIG;
- goto out;
- }
-
- fclose(fp);
- return get_param(devices, value, val_len);
-out:
- if (fp != NULL)
- fclose(fp);
- return rc;
-}
-
/*
- * TYPE one of llite, lmv, lov.
- * /proc/fs/lustre/TYPE/INST the directory of interest.
+ * Wrapper to grab parameter settings for lov.*-clilov-*.* values
*/
-static int get_param_cli(const char *type, const char *inst,
- const char *param, char *buf, size_t buf_size)
-{
- char param_path[PATH_MAX + 1];
- FILE *param_file = NULL;
- int rc;
-
- snprintf(param_path, sizeof(param_path),
- "/proc/fs/lustre/%s/%s/%s", type, inst, param);
-
- param_file = fopen(param_path, "r");
- if (param_file == NULL) {
- rc = -errno;
- goto out;
- }
-
- if (fgets(buf, buf_size, param_file) == NULL) {
- rc = -errno;
- goto out;
- }
-
- rc = 0;
-out:
- if (param_file != NULL)
- fclose(param_file);
-
- return rc;
-}
-
-static int get_param_llite(const char *path,
- const char *param, char *buf, size_t buf_size)
-{
- char inst[80];
- int rc;
-
- rc = llapi_getname(path, inst, sizeof(inst));
- if (rc != 0)
- return rc;
-
- return get_param_cli("llite", inst, param, buf, buf_size);
-}
-
-static int get_param_lov(const char *path,
- const char *param, char *buf, size_t buf_size)
+static int get_param_lov(const char *path, const char *param,
+ char *buf, size_t buf_size)
{
struct obd_uuid uuid;
int rc;
if (rc != 0)
return rc;
- return get_param_cli("lov", uuid.uuid, param, buf, buf_size);
+ return get_lustre_param_value("lov", uuid.uuid, FILTER_BY_EXACT, param,
+ buf, buf_size);
}
-static int get_param_lmv(const char *path,
- const char *param, char *buf, size_t buf_size)
+/*
+ * Wrapper to grab parameter settings for lmv.*-clilov-*.* values
+ */
+static int get_param_lmv(const char *path, const char *param,
+ char *buf, size_t buf_size)
{
struct obd_uuid uuid;
int rc;
if (rc != 0)
return rc;
- return get_param_cli("lmv", uuid.uuid, param, buf, buf_size);
+ return get_lustre_param_value("lmv", uuid.uuid, FILTER_BY_EXACT, param,
+ buf, buf_size);
}
static int get_mds_md_size(const char *path)
{
+ char buf[PATH_MAX], inst[PATH_MAX];
int md_size = lov_user_md_size(LOV_MAX_STRIPE_COUNT, LOV_USER_MAGIC_V3);
- char buf[80];
int rc;
- /* Get the max ea size from llite proc. */
- rc = get_param_llite(path, "max_easize", buf, sizeof(buf));
+ rc = llapi_getname(path, inst, sizeof(inst));
+ if (rc != 0)
+ return md_size;
+
+ /* Get the max ea size from llite parameters. */
+ rc = get_lustre_param_value("llite", inst, FILTER_BY_EXACT,
+ "max_easize", buf, sizeof(buf));
if (rc != 0)
- goto out;
+ return md_size;
rc = atoi(buf);
- if (rc > 0)
- md_size = rc;
-out:
- return md_size;
+ return rc > 0 ? rc : md_size;
}
int llapi_get_agent_uuid(char *path, char *buf, size_t bufsize)
*/
int llapi_search_ost(char *fsname, char *poolname, char *ostname)
{
- FILE *fd;
- char buffer[PATH_MAX + 1];
- int len = 0, rc;
+ char buffer[PATH_MAX];
+ size_t len = 0;
+ glob_t param;
+ FILE *fd;
+ int rc;
+
+ /* You need one or the other */
+ if (poolname == NULL && fsname == NULL)
+ return -EINVAL;
- if (ostname != NULL)
- len = strlen(ostname);
+ if (ostname != NULL)
+ len = strlen(ostname);
- if (poolname == NULL) {
- if (len == 0)
- rc = -EINVAL;
- else
- rc = find_target_obdpath(fsname, buffer);
+ if (poolname == NULL && len == 0)
+ return -EINVAL;
+
+ /* Search by poolname and fsname if is not NULL */
+ if (poolname != NULL) {
+ rc = poolpath(¶m, fsname, NULL);
+ if (rc == 0) {
+ snprintf(buffer, sizeof(buffer), "%s/%s",
+ param.gl_pathv[0], poolname);
+ }
+ } else if (fsname != NULL) {
+ rc = get_lustre_param_path("lov", fsname,
+ FILTER_BY_FS_NAME,
+ "target_obd", ¶m);
+ if (rc == 0) {
+ strncpy(buffer, param.gl_pathv[0],
+ sizeof(buffer));
+ }
} else {
- rc = find_poolpath(fsname, poolname, buffer);
+ return -EINVAL;
}
- if (rc)
- return rc;
+ cfs_free_param_data(¶m);
+ if (rc)
+ return rc;
fd = fopen(buffer, "r");
if (fd == NULL)
return 0;
}
-int llapi_file_open_pool(const char *name, int flags, int mode,
- unsigned long long stripe_size, int stripe_offset,
- int stripe_count, int stripe_pattern, char *pool_name)
+/**
+ * Open a Lustre file.
+ *
+ * \param name the name of the file to be opened
+ * \param flags access mode, see flags in open(2)
+ * \param mode permission of the file if it is created, see mode in open(2)
+ * \param param stripe pattern of the newly created file
+ *
+ * \retval file descriptor of opened file
+ * \retval negative errno on failure
+ */
+int llapi_file_open_param(const char *name, int flags, mode_t mode,
+ const struct llapi_stripe_param *param)
{
- struct lov_user_md_v3 lum = { 0 };
- int fd, rc = 0;
+ char fsname[MAX_OBD_NAME + 1] = { 0 };
+ char *pool_name = param->lsp_pool;
+ struct lov_user_md *lum = NULL;
+ size_t lum_size = sizeof(*lum);
+ int fd, rc;
+
+ /* Make sure we are on a Lustre file system */
+ rc = llapi_search_fsname(name, fsname);
+ if (rc) {
+ llapi_error(LLAPI_MSG_ERROR, rc,
+ "'%s' is not on a Lustre filesystem",
+ name);
+ return rc;
+ }
- /* Make sure we have a good pool */
- if (pool_name != NULL) {
- char fsname[MAX_OBD_NAME + 1], *ptr;
+ /* Check if the stripe pattern is sane. */
+ rc = llapi_stripe_limit_check(param->lsp_stripe_size,
+ param->lsp_stripe_offset,
+ param->lsp_stripe_count,
+ param->lsp_stripe_pattern);
+ if (rc != 0)
+ return rc;
- rc = llapi_search_fsname(name, fsname);
- if (rc) {
- llapi_error(LLAPI_MSG_ERROR, rc,
- "'%s' is not on a Lustre filesystem",
- name);
- return rc;
- }
+ /* Make sure we have a good pool */
+ if (pool_name != NULL) {
+ /* in case user gives the full pool name <fsname>.<poolname>,
+ * strip the fsname */
+ char *ptr = strchr(pool_name, '.');
+ if (ptr != NULL) {
+ *ptr = '\0';
+ if (strcmp(pool_name, fsname) != 0) {
+ *ptr = '.';
+ llapi_err_noerrno(LLAPI_MSG_ERROR,
+ "Pool '%s' is not on filesystem '%s'",
+ pool_name, fsname);
+ return -EINVAL;
+ }
+ pool_name = ptr + 1;
+ }
- /* in case user gives the full pool name <fsname>.<poolname>,
- * strip the fsname */
- ptr = strchr(pool_name, '.');
- if (ptr != NULL) {
- *ptr = '\0';
- if (strcmp(pool_name, fsname) != 0) {
- *ptr = '.';
- llapi_err_noerrno(LLAPI_MSG_ERROR,
- "Pool '%s' is not on filesystem '%s'",
- pool_name, fsname);
- return -EINVAL;
- }
- pool_name = ptr + 1;
- }
+ /* Make sure the pool exists and is non-empty */
+ rc = llapi_search_ost(fsname, pool_name, NULL);
+ if (rc < 1) {
+ char *err = rc == 0 ? "has no OSTs" : "does not exist";
- /* Make sure the pool exists and is non-empty */
- rc = llapi_search_ost(fsname, pool_name, NULL);
- if (rc < 1) {
- llapi_err_noerrno(LLAPI_MSG_ERROR,
- "pool '%s.%s' %s", fsname, pool_name,
- rc == 0 ? "has no OSTs" : "does not exist");
- return -EINVAL;
- }
- }
+ llapi_err_noerrno(LLAPI_MSG_ERROR, "pool '%s.%s' %s",
+ fsname, pool_name, err);
+ return -EINVAL;
+ }
+
+ lum_size = sizeof(struct lov_user_md_v3);
+ }
+
+ /* sanity check of target list */
+ if (param->lsp_is_specific) {
+ char ostname[MAX_OBD_NAME + 1];
+ bool found = false;
+ int i;
+
+ for (i = 0; i < param->lsp_stripe_count; i++) {
+ snprintf(ostname, sizeof(ostname), "%s-OST%04x_UUID",
+ fsname, param->lsp_osts[i]);
+ rc = llapi_search_ost(fsname, pool_name, ostname);
+ if (rc <= 0) {
+ if (rc == 0)
+ rc = -ENODEV;
+
+ llapi_error(LLAPI_MSG_ERROR, rc,
+ "%s: cannot find OST %s in %s",
+ __func__, ostname,
+ pool_name != NULL ?
+ "pool" : "system");
+ return rc;
+ }
+
+ /* Make sure stripe offset is in OST list. */
+ if (param->lsp_osts[i] == param->lsp_stripe_offset)
+ found = true;
+ }
+ if (!found) {
+ llapi_error(LLAPI_MSG_ERROR, -EINVAL,
+ "%s: stripe offset '%d' is not in the "
+ "target list",
+ __func__, param->lsp_stripe_offset);
+ return -EINVAL;
+ }
+
+ lum_size = lov_user_md_size(param->lsp_stripe_count,
+ LOV_USER_MAGIC_SPECIFIC);
+ }
+
+ lum = calloc(1, lum_size);
+ if (lum == NULL)
+ return -ENOMEM;
retry_open:
fd = open(name, flags | O_LOV_DELAY_CREATE, mode);
}
}
- if (fd < 0) {
- rc = -errno;
- llapi_error(LLAPI_MSG_ERROR, rc, "unable to open '%s'", name);
- return rc;
- }
+ if (fd < 0) {
+ rc = -errno;
+ llapi_error(LLAPI_MSG_ERROR, rc, "unable to open '%s'", name);
+ free(lum);
+ return rc;
+ }
- rc = llapi_stripe_limit_check(stripe_size, stripe_offset, stripe_count,
- stripe_pattern);
- if (rc != 0)
- goto out;
+ /* Initialize IOCTL striping pattern structure */
+ lum->lmm_magic = LOV_USER_MAGIC_V1;
+ lum->lmm_pattern = param->lsp_stripe_pattern;
+ lum->lmm_stripe_size = param->lsp_stripe_size;
+ lum->lmm_stripe_count = param->lsp_stripe_count;
+ lum->lmm_stripe_offset = param->lsp_stripe_offset;
+ if (pool_name != NULL) {
+ struct lov_user_md_v3 *lumv3 = (void *)lum;
- /* Initialize IOCTL striping pattern structure */
- lum.lmm_magic = LOV_USER_MAGIC_V3;
- lum.lmm_pattern = stripe_pattern;
- lum.lmm_stripe_size = stripe_size;
- lum.lmm_stripe_count = stripe_count;
- lum.lmm_stripe_offset = stripe_offset;
- if (pool_name != NULL) {
- strlcpy(lum.lmm_pool_name, pool_name,
- sizeof(lum.lmm_pool_name));
- } else {
- /* If no pool is specified at all, use V1 request */
- lum.lmm_magic = LOV_USER_MAGIC_V1;
- }
+ lumv3->lmm_magic = LOV_USER_MAGIC_V3;
+ strncpy(lumv3->lmm_pool_name, pool_name, LOV_MAXPOOLNAME);
+ }
+ if (param->lsp_is_specific) {
+ struct lov_user_md_v3 *lumv3 = (void *)lum;
+ int i;
+
+ lumv3->lmm_magic = LOV_USER_MAGIC_SPECIFIC;
+ if (pool_name == NULL) {
+ /* LOV_USER_MAGIC_SPECIFIC uses v3 format plus specified
+ * OST list, therefore if pool is not specified we have
+ * to pack a null pool name for placeholder. */
+ memset(lumv3->lmm_pool_name, 0, LOV_MAXPOOLNAME);
+ }
- if (ioctl(fd, LL_IOC_LOV_SETSTRIPE, &lum)) {
- char *errmsg = "stripe already set";
- rc = -errno;
- if (errno != EEXIST && errno != EALREADY)
- errmsg = strerror(errno);
+ for (i = 0; i < param->lsp_stripe_count; i++)
+ lumv3->lmm_objects[i].l_ost_idx = param->lsp_osts[i];
+ }
- llapi_err_noerrno(LLAPI_MSG_ERROR,
- "error on ioctl "LPX64" for '%s' (%d): %s",
- (__u64)LL_IOC_LOV_SETSTRIPE, name, fd,errmsg);
- }
-out:
- if (rc) {
- close(fd);
- fd = rc;
- }
+ if (ioctl(fd, LL_IOC_LOV_SETSTRIPE, lum) != 0) {
+ char *errmsg = "stripe already set";
+
+ rc = -errno;
+ if (errno != EEXIST && errno != EALREADY)
+ errmsg = strerror(errno);
+
+ llapi_err_noerrno(LLAPI_MSG_ERROR,
+ "error on ioctl %#jx for '%s' (%d): %s",
+ (uintmax_t)LL_IOC_LOV_SETSTRIPE, name, fd,
+ errmsg);
- return fd;
+ close(fd);
+ fd = rc;
+ }
+
+ free(lum);
+
+ return fd;
+}
+
+int llapi_file_open_pool(const char *name, int flags, int mode,
+ unsigned long long stripe_size, int stripe_offset,
+ int stripe_count, int stripe_pattern, char *pool_name)
+{
+ const struct llapi_stripe_param param = {
+ .lsp_stripe_size = stripe_size,
+ .lsp_stripe_count = stripe_count,
+ .lsp_stripe_pattern = stripe_pattern,
+ .lsp_stripe_offset = stripe_offset,
+ .lsp_pool = pool_name
+ };
+ return llapi_file_open_param(name, flags, mode, ¶m);
}
int llapi_file_open(const char *name, int flags, int mode,
lmu.lum_stripe_count = stripe_count;
lmu.lum_hash_type = stripe_pattern;
if (pool_name != NULL) {
- if (strlen(pool_name) >= LOV_MAXPOOLNAME) {
+ if (strlen(pool_name) > LOV_MAXPOOLNAME) {
llapi_err_noerrno(LLAPI_MSG_ERROR,
"error LL_IOC_LMV_SETSTRIPE '%s' : too large"
"pool name: %s", name, pool_name);
if (ioctl(fd, LL_IOC_REMOVE_ENTRY, filename)) {
char *errmsg = strerror(errno);
llapi_err_noerrno(LLAPI_MSG_ERROR,
- "error on ioctl "LPX64" for '%s' (%d): %s",
- (__u64)LL_IOC_LMV_SETSTRIPE, filename,
+ "error on ioctl %#jx for '%s' (%d): %s",
+ (uintmax_t)LL_IOC_LMV_SETSTRIPE, filename,
fd, errmsg);
}
out:
*/
int get_root_path(int want, char *fsname, int *outfd, char *path, int index)
{
- struct mntent mnt;
- char buf[PATH_MAX], mntdir[PATH_MAX];
- char *ptr;
- FILE *fp;
- int idx = 0, len = 0, mntlen, fd;
- int rc = -ENODEV;
+ struct mntent mnt;
+ char buf[PATH_MAX], mntdir[PATH_MAX];
+ char *ptr, *ptr_end;
+ FILE *fp;
+ int idx = 0, len = 0, mntlen, fd;
+ int rc = -ENODEV;
/* get the mount point */
- fp = setmntent(MOUNTED, "r");
- if (fp == NULL) {
- rc = -EIO;
- llapi_error(LLAPI_MSG_ERROR, rc,
- "setmntent(%s) failed", MOUNTED);
- return rc;
- }
+ fp = setmntent(PROC_MOUNTS, "r");
+ if (fp == NULL) {
+ rc = -EIO;
+ llapi_error(LLAPI_MSG_ERROR, rc,
+ "setmntent(%s) failed", PROC_MOUNTS);
+ return rc;
+ }
while (1) {
if (getmntent_r(fp, &mnt, buf, sizeof(buf)) == NULL)
break;
continue;
mntlen = strlen(mnt.mnt_dir);
- ptr = strrchr(mnt.mnt_fsname, '/');
+ ptr = strchr(mnt.mnt_fsname, '/');
+ while (ptr && *ptr == '/')
+ ptr++;
/* thanks to the call to llapi_is_lustre_mnt() above,
* we are sure that mnt.mnt_fsname contains ":/",
* so ptr should never be NULL */
if (ptr == NULL)
continue;
- ptr++;
+ ptr_end = ptr;
+ while (*ptr_end != '/' && *ptr_end != '\0')
+ ptr_end++;
- /* Check the fsname for a match, if given */
+ /* Check the fsname for a match, if given */
if (!(want & WANT_FSNAME) && fsname != NULL &&
- (strlen(fsname) > 0) && (strcmp(ptr, fsname) != 0))
+ (strlen(fsname) > 0) &&
+ (strncmp(ptr, fsname, ptr_end - ptr) != 0))
continue;
/* If the path isn't set return the first one we find */
- if (path == NULL || strlen(path) == 0) {
- strcpy(mntdir, mnt.mnt_dir);
- if ((want & WANT_FSNAME) && fsname != NULL)
- strcpy(fsname, ptr);
- rc = 0;
- break;
- /* Otherwise find the longest matching path */
- } else if ((strlen(path) >= mntlen) && (mntlen >= len) &&
- (strncmp(mnt.mnt_dir, path, mntlen) == 0)) {
- strcpy(mntdir, mnt.mnt_dir);
- len = mntlen;
- if ((want & WANT_FSNAME) && fsname != NULL)
- strcpy(fsname, ptr);
- rc = 0;
- }
- }
- endmntent(fp);
-
- /* Found it */
- if (rc == 0) {
- if ((want & WANT_PATH) && path != NULL)
- strcpy(path, mntdir);
- if (want & WANT_FD) {
- fd = open(mntdir, O_RDONLY | O_DIRECTORY | O_NONBLOCK);
- if (fd < 0) {
- rc = -errno;
- llapi_error(LLAPI_MSG_ERROR, rc,
- "error opening '%s'", mntdir);
+ if (path == NULL || strlen(path) == 0) {
+ strncpy(mntdir, mnt.mnt_dir, strlen(mnt.mnt_dir));
+ mntdir[strlen(mnt.mnt_dir)] = '\0';
+ if ((want & WANT_FSNAME) && fsname != NULL) {
+ strncpy(fsname, ptr, ptr_end - ptr);
+ fsname[ptr_end - ptr] = '\0';
+ }
+ rc = 0;
+ break;
+ /* Otherwise find the longest matching path */
+ } else if ((strlen(path) >= mntlen) && (mntlen >= len) &&
+ (strncmp(mnt.mnt_dir, path, mntlen) == 0)) {
+ strncpy(mntdir, mnt.mnt_dir, strlen(mnt.mnt_dir));
+ mntdir[strlen(mnt.mnt_dir)] = '\0';
+ len = mntlen;
+ if ((want & WANT_FSNAME) && fsname != NULL) {
+ strncpy(fsname, ptr, ptr_end - ptr);
+ fsname[ptr_end - ptr] = '\0';
+ }
+ rc = 0;
+ }
+ }
+ endmntent(fp);
- } else {
- *outfd = fd;
- }
- }
- } else if (want & WANT_ERROR)
- llapi_err_noerrno(LLAPI_MSG_ERROR,
- "can't find fs root for '%s': %d",
- (want & WANT_PATH) ? fsname : path, rc);
- return rc;
-}
+ /* Found it */
+ if (rc == 0) {
+ if ((want & WANT_PATH) && path != NULL) {
+ strncpy(path, mntdir, strlen(mntdir));
+ path[strlen(mntdir)] = '\0';
+ }
+ if (want & WANT_FD) {
+ fd = open(mntdir, O_RDONLY | O_DIRECTORY | O_NONBLOCK);
+ if (fd < 0) {
+ rc = -errno;
+ llapi_error(LLAPI_MSG_ERROR, rc,
+ "error opening '%s'", mntdir);
-/*
+ } else {
+ *outfd = fd;
+ }
+ }
+ } else if (want & WANT_ERROR)
+ llapi_err_noerrno(LLAPI_MSG_ERROR,
+ "can't find fs root for '%s': %d",
+ (want & WANT_PATH) ? fsname : path, rc);
+ return rc;
+}
+
+/*
* search lustre mounts
*
* Calling this function will return to the user the mount point, mntdir, and
* the value of the index will be ignored. The pathname will return data if
* the pathname is located on a lustre mount. Index is used to pick which
* mount point you want in the case of multiple mounted lustre file systems.
- * See function lfs_osts in lfs.c for a example of the index use.
+ * See function lfs_osts in lfs.c for an example of the index use.
*/
int llapi_search_mounts(const char *pathname, int index, char *mntdir,
char *fsname)
return rc;
}
-
-/*
- * find the pool directory path under /proc
- * (can be also used to test if a fsname is known)
- */
-static int poolpath(char *fsname, char *pathname, char *pool_pathname)
-{
- int rc = 0;
- char pattern[PATH_MAX + 1];
- char buffer[PATH_MAX];
-
- if (fsname == NULL) {
- rc = llapi_search_fsname(pathname, buffer);
- if (rc != 0)
- return rc;
- fsname = buffer;
- strcpy(pathname, fsname);
- }
-
- snprintf(pattern, PATH_MAX, "/proc/fs/lustre/lov/%s-*/pools", fsname);
- rc = first_match(pattern, buffer);
- if (rc)
- return rc;
-
- /* in fsname test mode, pool_pathname is NULL */
- if (pool_pathname != NULL)
- strcpy(pool_pathname, buffer);
-
- return 0;
-}
-
/**
* Get the list of pool members.
* \param poolname string of format \<fsname\>.\<poolname\>
{
char fsname[PATH_MAX];
char *pool, *tmp;
- char pathname[PATH_MAX];
- char path[PATH_MAX];
- char buf[1024];
- FILE *fd;
- int rc = 0;
- int nb_entries = 0;
- int used = 0;
+ glob_t pathname;
+ char buf[PATH_MAX];
+ FILE *fd;
+ int rc = 0;
+ int nb_entries = 0;
+ int used = 0;
- /* name is FSNAME.POOLNAME */
+ /* name is FSNAME.POOLNAME */
if (strlen(poolname) >= sizeof(fsname))
return -EOVERFLOW;
strlcpy(fsname, poolname, sizeof(fsname));
- pool = strchr(fsname, '.');
- if (pool == NULL)
- return -EINVAL;
+ pool = strchr(fsname, '.');
+ if (pool == NULL)
+ return -EINVAL;
- *pool = '\0';
- pool++;
+ *pool = '\0';
+ pool++;
- rc = poolpath(fsname, NULL, pathname);
- if (rc != 0) {
- llapi_error(LLAPI_MSG_ERROR, rc,
- "Lustre filesystem '%s' not found",
- fsname);
- return rc;
- }
+ rc = poolpath(&pathname, fsname, NULL);
+ if (rc != 0) {
+ llapi_error(LLAPI_MSG_ERROR, rc,
+ "Lustre filesystem '%s' not found",
+ fsname);
+ return rc;
+ }
- llapi_printf(LLAPI_MSG_NORMAL, "Pool: %s.%s\n", fsname, pool);
- rc = snprintf(path, sizeof(path), "%s/%s", pathname, pool);
- if (rc >= sizeof(path))
+ llapi_printf(LLAPI_MSG_NORMAL, "Pool: %s.%s\n", fsname, pool);
+ rc = snprintf(buf, sizeof(buf), "%s/%s", pathname.gl_pathv[0], pool);
+ cfs_free_param_data(&pathname);
+ if (rc >= sizeof(buf))
return -EOVERFLOW;
- fd = fopen(path, "r");
- if (fd == NULL) {
- rc = -errno;
- llapi_error(LLAPI_MSG_ERROR, rc, "Cannot open %s", path);
- return rc;
- }
+ fd = fopen(buf, "r");
+ if (fd == NULL) {
+ rc = -errno;
+ llapi_error(LLAPI_MSG_ERROR, rc, "cannot open %s", buf);
+ return rc;
+ }
rc = 0;
while (fgets(buf, sizeof(buf), fd) != NULL) {
int llapi_get_poollist(const char *name, char **poollist, int list_size,
char *buffer, int buffer_size)
{
- char fsname[PATH_MAX + 1], rname[PATH_MAX + 1], pathname[PATH_MAX + 1];
+ char rname[PATH_MAX];
+ glob_t pathname;
+ char *fsname;
char *ptr;
DIR *dir;
struct dirent pool;
unsigned int used = 0;
unsigned int i;
- /* initilize output array */
+ /* initialize output array */
for (i = 0; i < list_size; i++)
poollist[i] = NULL;
return rc;
}
- rc = poolpath(NULL, rname, pathname);
- if (rc != 0) {
- llapi_error(LLAPI_MSG_ERROR, rc, "'%s' is not"
- " a Lustre filesystem", name);
- return rc;
- }
- if (strlen(rname) > sizeof(fsname)-1)
- return -E2BIG;
- strncpy(fsname, rname, sizeof(fsname));
- } else {
- /* name is FSNAME */
- if (strlen(name) > sizeof(fsname)-1)
- return -E2BIG;
- strncpy(fsname, name, sizeof(fsname));
- rc = poolpath(fsname, NULL, pathname);
- }
- if (rc != 0) {
- llapi_error(LLAPI_MSG_ERROR, rc,
- "Lustre filesystem '%s' not found", name);
- return rc;
- }
+ fsname = strdup(rname);
+ if (!fsname)
+ return -ENOMEM;
- llapi_printf(LLAPI_MSG_NORMAL, "Pools from %s:\n", fsname);
- dir = opendir(pathname);
- if (dir == NULL) {
- rc = -errno;
- llapi_error(LLAPI_MSG_ERROR, rc,
- "Could not open pool list for '%s'",
- name);
- return rc;
- }
+ rc = poolpath(&pathname, NULL, rname);
+ } else {
+ /* name is FSNAME */
+ fsname = strdup(name);
+ if (!fsname)
+ return -ENOMEM;
+ rc = poolpath(&pathname, fsname, NULL);
+ }
+ if (rc != 0) {
+ llapi_error(LLAPI_MSG_ERROR, rc,
+ "Lustre filesystem '%s' not found", name);
+ goto free_path;
+ }
- while(1) {
- rc = readdir_r(dir, &pool, &cookie);
+ llapi_printf(LLAPI_MSG_NORMAL, "Pools from %s:\n", fsname);
+ dir = opendir(pathname.gl_pathv[0]);
+ if (dir == NULL) {
+ rc = -errno;
+ llapi_error(LLAPI_MSG_ERROR, rc,
+ "Could not open pool list for '%s'",
+ name);
+ goto free_path;
+ }
- if (rc != 0) {
- rc = -errno;
- llapi_error(LLAPI_MSG_ERROR, rc,
- "Error reading pool list for '%s'", name);
- goto out;
- } else if ((rc == 0) && (cookie == NULL)) {
- /* end of directory */
- break;
- }
+ while(1) {
+ rc = readdir_r(dir, &pool, &cookie);
+ if (rc != 0) {
+ rc = -errno;
+ llapi_error(LLAPI_MSG_ERROR, rc,
+ "Error reading pool list for '%s'", name);
+ goto free_path;
+ } else if ((rc == 0) && (cookie == NULL)) {
+ /* end of directory */
+ break;
+ }
/* ignore . and .. */
if (!strcmp(pool.d_name, ".") || !strcmp(pool.d_name, ".."))
/* check output bounds */
if (nb_entries >= list_size) {
rc = -EOVERFLOW;
- goto out;
+ goto free_dir;
}
/* +2 for '.' and final '\0' */
if (used + strlen(pool.d_name) + strlen(fsname) + 2
> buffer_size) {
rc = -EOVERFLOW;
- goto out;
+ goto free_dir;
}
sprintf(buffer + used, "%s.%s", fsname, pool.d_name);
nb_entries++;
}
-out:
- closedir(dir);
- return ((rc != 0) ? rc : nb_entries);
+free_dir:
+ closedir(dir);
+free_path:
+ cfs_free_param_data(&pathname);
+ if (fsname)
+ free(fsname);
+ return rc != 0 ? rc : nb_entries;
}
/* wrapper for lfs.c and obd.c */
int llapi_poollist(const char *name)
{
- /* list of pool names (assume that pool count is smaller
- than OST count) */
- char **list, *buffer = NULL, *path = NULL, *fsname = NULL;
- int obdcount, bufsize, rc, nb, i;
- char *poolname = NULL, *tmp = NULL, data[16];
+ /* list of pool names (assume that pool count is smaller
+ than OST count) */
+ char **list, *buffer = NULL, *fsname = (char *)name;
+ char *poolname = NULL, *tmp = NULL, data[16];
+ enum param_filter type = FILTER_BY_PATH;
+ int obdcount, bufsize, rc, nb, i;
if (name == NULL)
return -EINVAL;
if (fsname == NULL)
return -ENOMEM;
- poolname = strchr(fsname, '.');
- if (poolname)
- *poolname = '\0';
- } else {
- path = (char *) name;
- }
+ poolname = strchr(fsname, '.');
+ if (poolname)
+ *poolname = '\0';
+ type = FILTER_BY_FS_NAME;
+ }
- rc = get_param_obdvar(fsname, path, "lov", "numobd",
- data, sizeof(data));
- if (rc < 0)
- goto err;
- obdcount = atoi(data);
+ rc = get_lustre_param_value("lov", fsname, type, "numobd",
+ data, sizeof(data));
+ if (rc < 0)
+ goto err;
+ obdcount = atoi(data);
/* Allocate space for each fsname-OST0000_UUID, 1 per OST,
* and also an array to store the pointers for all that
err:
if (buffer)
free(buffer);
- if (fsname)
- free(fsname);
- return rc;
+ if (fsname != NULL && type == FILTER_BY_FS_NAME)
+ free(fsname);
+ return rc;
}
typedef int (semantic_func_t)(char *path, DIR *parent, DIR **d,
static int common_param_init(struct find_param *param, char *path)
{
- int lumlen = get_mds_md_size(path);
+ int lum_size = get_mds_md_size(path);
- if (lumlen < PATH_MAX + 1)
- lumlen = PATH_MAX + 1;
+ if (lum_size < PATH_MAX + 1)
+ lum_size = PATH_MAX + 1;
- param->lumlen = lumlen;
- param->lmd = malloc(sizeof(lstat_t) + param->lumlen);
- if (param->lmd == NULL) {
+ param->fp_lum_size = lum_size;
+ param->fp_lmd = calloc(1, sizeof(lstat_t) + param->fp_lum_size);
+ if (param->fp_lmd == NULL) {
llapi_error(LLAPI_MSG_ERROR, -ENOMEM,
"error: allocation of %zu bytes for ioctl",
- sizeof(lstat_t) + param->lumlen);
+ sizeof(lstat_t) + param->fp_lum_size);
return -ENOMEM;
}
- param->fp_lmv_count = 256;
- param->fp_lmv_md = malloc(lmv_user_md_size(256, LMV_MAGIC_V1));
+ param->fp_lmv_stripe_count = 256;
+ param->fp_lmv_md = calloc(1,
+ lmv_user_md_size(param->fp_lmv_stripe_count,
+ LMV_MAGIC_V1));
if (param->fp_lmv_md == NULL) {
llapi_error(LLAPI_MSG_ERROR, -ENOMEM,
"error: allocation of %d bytes for ioctl",
- lmv_user_md_size(256, LMV_MAGIC_V1));
+ lmv_user_md_size(param->fp_lmv_stripe_count,
+ LMV_MAGIC_V1));
return -ENOMEM;
}
- param->got_uuids = 0;
- param->obdindexes = NULL;
- param->obdindex = OBD_NOT_FOUND;
- if (!param->migrate)
- param->mdtindex = OBD_NOT_FOUND;
+ param->fp_got_uuids = 0;
+ param->fp_obd_indexes = NULL;
+ param->fp_obd_index = OBD_NOT_FOUND;
+ if (!param->fp_migrate)
+ param->fp_mdt_index = OBD_NOT_FOUND;
return 0;
}
static void find_param_fini(struct find_param *param)
{
- if (param->obdindexes)
- free(param->obdindexes);
+ if (param->fp_obd_indexes)
+ free(param->fp_obd_indexes);
- if (param->lmd)
- free(param->lmd);
+ if (param->fp_lmd)
+ free(param->fp_lmd);
if (param->fp_lmv_md)
free(param->fp_lmv_md);
}
/* set errno upon failure */
-static DIR *opendir_parent(char *path)
+static DIR *opendir_parent(const char *path)
{
- DIR *parent;
- char *fname;
- char c;
-
- fname = strrchr(path, '/');
- if (fname == NULL)
- return opendir(".");
-
- c = fname[1];
- fname[1] = '\0';
- parent = opendir(path);
- fname[1] = c;
- return parent;
+ char *path_copy;
+ char *parent_path;
+ DIR *parent;
+
+ path_copy = strdup(path);
+ if (path_copy == NULL)
+ return NULL;
+
+ parent_path = dirname(path_copy);
+ parent = opendir(parent_path);
+ free(path_copy);
+
+ return parent;
}
static int cb_get_dirstripe(char *path, DIR *d, struct find_param *param)
{
- struct lmv_user_md *lmv = (struct lmv_user_md *)param->fp_lmv_md;
- int ret = 0;
+ int ret;
- lmv->lum_stripe_count = param->fp_lmv_count;
- if (param->get_default_lmv)
- lmv->lum_magic = LMV_USER_MAGIC;
+again:
+ param->fp_lmv_md->lum_stripe_count = param->fp_lmv_stripe_count;
+ if (param->fp_get_default_lmv)
+ param->fp_lmv_md->lum_magic = LMV_USER_MAGIC;
else
- lmv->lum_magic = LMV_MAGIC_V1;
- ret = ioctl(dirfd(d), LL_IOC_LMV_GETSTRIPE, lmv);
+ param->fp_lmv_md->lum_magic = LMV_MAGIC_V1;
+ ret = ioctl(dirfd(d), LL_IOC_LMV_GETSTRIPE, param->fp_lmv_md);
+ if (errno == E2BIG && ret != 0) {
+ int stripe_count;
+ int lmv_size;
+
+ stripe_count = (__u32)param->fp_lmv_md->lum_stripe_count;
+ if (stripe_count <= param->fp_lmv_stripe_count)
+ return ret;
+
+ free(param->fp_lmv_md);
+ param->fp_lmv_stripe_count = stripe_count;
+ lmv_size = lmv_user_md_size(stripe_count, LMV_MAGIC_V1);
+ param->fp_lmv_md = malloc(lmv_size);
+ if (param->fp_lmv_md == NULL) {
+ llapi_error(LLAPI_MSG_ERROR, -ENOMEM,
+ "error: allocation of %d bytes for ioctl",
+ lmv_user_md_size(param->fp_lmv_stripe_count,
+ LMV_MAGIC_V1));
+ return -ENOMEM;
+ }
+ goto again;
+ }
return ret;
}
if (dir) {
ret = ioctl(dirfd(dir), LL_IOC_MDC_GETINFO, (void *)lmd);
} else if (parent) {
- char *fname = strrchr(path, '/');
+ char *fname = strrchr(path, '/');
- fname = (fname == NULL ? path : fname + 1);
- /* retrieve needed file info */
+ /* To avoid opening, locking, and closing each file on the
+ * client if that is not needed. The GETFILEINFO ioctl can
+ * be done on the patent dir with a single open for all
+ * files in that directory, and it also doesn't pollute the
+ * client dcache with millions of dentries when traversing
+ * a large filesystem. */
+ fname = (fname == NULL ? path : fname + 1);
+ /* retrieve needed file info */
strlcpy((char *)lmd, fname, lumlen);
- ret = ioctl(dirfd(parent), IOC_MDC_GETFILEINFO, (void *)lmd);
+ ret = ioctl(dirfd(parent), IOC_MDC_GETFILEINFO, (void *)lmd);
}
if (ret) {
while ((dent = readdir64(d)) != NULL) {
int rc;
- param->have_fileinfo = 0;
-
if (!strcmp(dent->d_name, ".") || !strcmp(dent->d_name, ".."))
continue;
strcat(path, dent->d_name);
if (dent->d_type == DT_UNKNOWN) {
- lstat_t *st = ¶m->lmd->lmd_st;
+ lstat_t *st = ¶m->fp_lmd->lmd_st;
- rc = get_lmd_info(path, d, NULL, param->lmd,
- param->lumlen);
+ rc = get_lmd_info(path, d, NULL, param->fp_lmd,
+ param->fp_lum_size);
if (rc == 0)
dent->d_type = IFTODT(st->st_mode);
else if (ret == 0)
int llapi_file_get_lov_uuid(const char *path, struct obd_uuid *lov_uuid)
{
- int fd, rc;
+ int fd, rc;
- fd = open(path, O_RDONLY);
- if (fd < 0) {
- rc = -errno;
- llapi_error(LLAPI_MSG_ERROR, rc, "error opening %s", path);
- return rc;
- }
+ fd = open(path, O_RDONLY | O_NONBLOCK);
+ if (fd < 0) {
+ rc = -errno;
+ llapi_error(LLAPI_MSG_ERROR, rc, "error opening %s", path);
+ return rc;
+ }
- rc = llapi_file_fget_lov_uuid(fd, lov_uuid);
+ rc = llapi_file_fget_lov_uuid(fd, lov_uuid);
- close(fd);
- return rc;
+ close(fd);
+ return rc;
}
int llapi_file_get_lmv_uuid(const char *path, struct obd_uuid *lov_uuid)
{
int fd, rc;
- fd = open(path, O_RDONLY);
+ fd = open(path, O_RDONLY | O_NONBLOCK);
if (fd < 0) {
rc = -errno;
llapi_error(LLAPI_MSG_ERROR, rc, "error opening %s", path);
LOV_TYPE = 1,
LMV_TYPE
};
+
/*
* If uuidp is NULL, return the number of available obd uuids.
* If uuidp is non-NULL, then it will return the uuids of the obds. If
- * there are more OSTs then allocated to uuidp, then an error is returned with
+ * there are more OSTs than allocated to uuidp, then an error is returned with
* the ost_count set to number of available obd uuids.
*/
static int llapi_get_target_uuids(int fd, struct obd_uuid *uuidp,
int *ost_count, enum tgt_type type)
{
+ char buf[PATH_MAX], format[32];
+ int rc = 0, index = 0;
struct obd_uuid name;
- char buf[1024];
- char format[32];
+ glob_t param;
FILE *fp;
- int rc = 0, index = 0;
- /* Get the lov name */
- if (type == LOV_TYPE) {
- rc = llapi_file_fget_lov_uuid(fd, &name);
- if (rc)
- return rc;
- } else {
- rc = llapi_file_fget_lmv_uuid(fd, &name);
- if (rc)
- return rc;
- }
+ /* Get the lov name */
+ if (type == LOV_TYPE)
+ rc = llapi_file_fget_lov_uuid(fd, &name);
+ else
+ rc = llapi_file_fget_lmv_uuid(fd, &name);
+ if (rc != 0)
+ return rc;
- /* Now get the ost uuids from /proc */
- snprintf(buf, sizeof(buf), "/proc/fs/lustre/%s/%s/target_obd",
- type == LOV_TYPE ? "lov" : "lmv", name.uuid);
- fp = fopen(buf, "r");
- if (fp == NULL) {
- rc = -errno;
- llapi_error(LLAPI_MSG_ERROR, rc, "error: opening '%s'", buf);
- return rc;
- }
+ /* Now get the ost uuids */
+ rc = get_lustre_param_path(type == LOV_TYPE ? "lov" : "lmv", name.uuid,
+ FILTER_BY_EXACT, "target_obd", ¶m);
+ if (rc != 0)
+ return -ENOENT;
+
+ fp = fopen(param.gl_pathv[0], "r");
+ if (fp == NULL) {
+ rc = -errno;
+ llapi_error(LLAPI_MSG_ERROR, rc, "error: opening '%s'",
+ param.gl_pathv[0]);
+ goto free_param;
+ }
snprintf(format, sizeof(format),
"%%d: %%%zus", sizeof(uuidp[0].uuid) - 1);
if (uuidp && (index > *ost_count))
rc = -EOVERFLOW;
- *ost_count = index;
- return rc;
+ *ost_count = index;
+free_param:
+ cfs_free_param_data(¶m);
+ return rc;
}
int llapi_lov_get_uuids(int fd, struct obd_uuid *uuidp, int *ost_count)
int llapi_get_obd_count(char *mnt, int *count, int is_mdt)
{
- DIR *root;
- int rc;
+ int root;
+ int rc;
- root = opendir(mnt);
- if (!root) {
- rc = -errno;
- llapi_error(LLAPI_MSG_ERROR, rc, "open %s failed", mnt);
- return rc;
- }
+ root = open(mnt, O_RDONLY | O_DIRECTORY);
+ if (root < 0) {
+ rc = -errno;
+ llapi_error(LLAPI_MSG_ERROR, rc, "open %s failed", mnt);
+ return rc;
+ }
- *count = is_mdt;
- rc = ioctl(dirfd(root), LL_IOC_GETOBDCOUNT, count);
- if (rc < 0)
- rc = -errno;
+ *count = is_mdt;
+ rc = ioctl(root, LL_IOC_GETOBDCOUNT, count);
+ if (rc < 0)
+ rc = -errno;
- closedir(root);
- return rc;
+ close(root);
+ return rc;
}
/* Check if user specified value matches a real uuid. Ignore _UUID,
return (strncmp(search_uuid, real_uuid, cmplen) == 0);
}
-/* Here, param->obduuid points to a single obduuid, the index of which is
- * returned in param->obdindex */
-static int setup_obd_uuid(DIR *dir, char *dname, struct find_param *param)
+/* Here, param->fp_obd_uuid points to a single obduuid, the index of which is
+ * returned in param->fp_obd_index */
+static int setup_obd_uuid(int fd, char *dname, struct find_param *param)
{
struct obd_uuid obd_uuid;
- char buf[1024];
+ char buf[PATH_MAX];
+ glob_t param_data;
char format[32];
- FILE *fp;
int rc = 0;
+ FILE *fp;
- if (param->got_uuids)
- return rc;
+ if (param->fp_got_uuids)
+ return rc;
- /* Get the lov/lmv name */
- if (param->get_lmv)
- rc = llapi_file_fget_lmv_uuid(dirfd(dir), &obd_uuid);
- else
- rc = llapi_file_fget_lov_uuid(dirfd(dir), &obd_uuid);
- if (rc) {
- if (rc != -ENOTTY) {
- llapi_error(LLAPI_MSG_ERROR, rc,
- "error: can't get lov name: %s", dname);
- } else {
- rc = 0;
- }
- return rc;
- }
+ /* Get the lov/lmv name */
+ if (param->fp_get_lmv)
+ rc = llapi_file_fget_lmv_uuid(fd, &obd_uuid);
+ else
+ rc = llapi_file_fget_lov_uuid(fd, &obd_uuid);
+ if (rc) {
+ if (rc != -ENOTTY) {
+ llapi_error(LLAPI_MSG_ERROR, rc,
+ "error: can't get %s name: %s",
+ param->fp_get_lmv ? "lmv" : "lov",
+ dname);
+ } else {
+ rc = 0;
+ }
+ return rc;
+ }
- param->got_uuids = 1;
+ param->fp_got_uuids = 1;
- /* Now get the ost uuids from /proc */
- snprintf(buf, sizeof(buf), "/proc/fs/lustre/%s/%s/target_obd",
- param->get_lmv ? "lmv" : "lov", obd_uuid.uuid);
- fp = fopen(buf, "r");
- if (fp == NULL) {
- rc = -errno;
- llapi_error(LLAPI_MSG_ERROR, rc, "error: opening '%s'", buf);
- return rc;
- }
+ /* Now get the ost uuids */
+ rc = get_lustre_param_path(param->fp_get_lmv ? "lmv" : "lov",
+ obd_uuid.uuid, FILTER_BY_EXACT,
+ "target_obd", ¶m_data);
+ if (rc != 0)
+ return -ENOENT;
- if (!param->obduuid && !param->quiet && !param->obds_printed)
- llapi_printf(LLAPI_MSG_NORMAL, "%s:\n",
- param->get_lmv ? "MDTS" : "OBDS:");
+ fp = fopen(param_data.gl_pathv[0], "r");
+ if (fp == NULL) {
+ rc = -errno;
+ llapi_error(LLAPI_MSG_ERROR, rc, "error: opening '%s'",
+ param_data.gl_pathv[0]);
+ goto free_param;
+ }
+
+ if (!param->fp_obd_uuid && !param->fp_quiet && !param->fp_obds_printed)
+ llapi_printf(LLAPI_MSG_NORMAL, "%s:\n",
+ param->fp_get_lmv ? "MDTS" : "OBDS");
snprintf(format, sizeof(format),
"%%d: %%%zus", sizeof(obd_uuid.uuid) - 1);
if (sscanf(buf, format, &index, obd_uuid.uuid) < 2)
break;
- if (param->obduuid) {
+ if (param->fp_obd_uuid) {
if (llapi_uuid_match(obd_uuid.uuid,
- param->obduuid->uuid)) {
- param->obdindex = index;
- break;
- }
- } else if (!param->quiet && !param->obds_printed) {
- /* Print everything */
- llapi_printf(LLAPI_MSG_NORMAL, "%s", buf);
- }
- }
- param->obds_printed = 1;
+ param->fp_obd_uuid->uuid)) {
+ param->fp_obd_index = index;
+ break;
+ }
+ } else if (!param->fp_quiet && !param->fp_obds_printed) {
+ /* Print everything */
+ llapi_printf(LLAPI_MSG_NORMAL, "%s", buf);
+ }
+ }
+ param->fp_obds_printed = 1;
fclose(fp);
- if (param->obduuid && (param->obdindex == OBD_NOT_FOUND)) {
- llapi_err_noerrno(LLAPI_MSG_ERROR,
- "error: %s: unknown obduuid: %s",
- __func__, param->obduuid->uuid);
- rc = -EINVAL;
- }
-
- return (rc);
+ if (param->fp_obd_uuid && (param->fp_obd_index == OBD_NOT_FOUND)) {
+ llapi_err_noerrno(LLAPI_MSG_ERROR,
+ "error: %s: unknown obduuid: %s",
+ __func__, param->fp_obd_uuid->uuid);
+ rc = -EINVAL;
+ }
+free_param:
+ cfs_free_param_data(¶m_data);
+ return rc;
}
-/* In this case, param->obduuid will be an array of obduuids and
+/* In this case, param->fp_obd_uuid will be an array of obduuids and
* obd index for all these obduuids will be returned in
- * param->obdindexes */
+ * param->fp_obd_indexes */
static int setup_indexes(DIR *dir, char *path, struct obd_uuid *obduuids,
int num_obds, int **obdindexes, int *obdindex,
enum tgt_type type)
if (ret != 0)
return ret;
- obdcount = atoi(buf);
- uuids = (struct obd_uuid *)malloc(obdcount *
- sizeof(struct obd_uuid));
- if (uuids == NULL)
- return -ENOMEM;
+ obdcount = atoi(buf);
+ uuids = malloc(obdcount * sizeof(struct obd_uuid));
+ if (uuids == NULL)
+ return -ENOMEM;
retry_get_uuids:
- ret = llapi_get_target_uuids(dirfd(dir), uuids, &obdcount, type);
- if (ret) {
- struct obd_uuid *uuids_temp;
+ ret = llapi_get_target_uuids(dirfd(dir), uuids, &obdcount, type);
+ if (ret) {
+ if (ret == -EOVERFLOW) {
+ struct obd_uuid *uuids_temp;
- if (ret == -EOVERFLOW) {
- uuids_temp = realloc(uuids, obdcount *
- sizeof(struct obd_uuid));
+ uuids_temp = realloc(uuids, obdcount *
+ sizeof(struct obd_uuid));
if (uuids_temp != NULL) {
uuids = uuids_temp;
- goto retry_get_uuids;
+ goto retry_get_uuids;
}
- else
- ret = -ENOMEM;
- }
+ ret = -ENOMEM;
+ }
llapi_error(LLAPI_MSG_ERROR, ret, "get ost uuid failed");
goto out_free;
{
int ret = 0;
- if (param->mdtuuid) {
- ret = setup_indexes(dir, path, param->mdtuuid, param->num_mdts,
- ¶m->mdtindexes, ¶m->mdtindex, LMV_TYPE);
- if (ret)
- return ret;
- }
- if (param->obduuid) {
- ret = setup_indexes(dir, path, param->obduuid, param->num_obds,
- ¶m->obdindexes, ¶m->obdindex, LOV_TYPE);
- if (ret)
- return ret;
- }
- param->got_uuids = 1;
- return ret;
-}
-
-int llapi_ostlist(char *path, struct find_param *param)
-{
- DIR *dir;
- int ret;
-
- dir = opendir(path);
- if (dir == NULL)
- return -errno;
-
- ret = setup_obd_uuid(dir, path, param);
- closedir(dir);
-
- return ret;
-}
-
-/*
- * Given a filesystem name, or a pathname of a file on a lustre filesystem,
- * tries to determine the path to the filesystem's clilov directory under /proc
- *
- * fsname is limited to MTI_NAME_MAXLEN in lustre_idl.h
- * The NUL terminator is compensated by the additional "%s" bytes. */
-#define LOV_LEN (sizeof("/proc/fs/lustre/lov/%s-clilov-*") + MTI_NAME_MAXLEN)
-static int clilovpath(const char *fsname, const char *const pathname,
- char *clilovpath)
-{
- int rc;
- char pattern[LOV_LEN];
- char buffer[PATH_MAX + 1];
-
- if (fsname == NULL) {
- rc = llapi_search_fsname(pathname, buffer);
- if (rc != 0)
- return rc;
- fsname = buffer;
- }
-
- snprintf(pattern, sizeof(pattern), "/proc/fs/lustre/lov/%s-clilov-*",
- fsname);
+ if (param->fp_mdt_uuid) {
+ ret = setup_indexes(dir, path, param->fp_mdt_uuid,
+ param->fp_num_mdts,
+ ¶m->fp_mdt_indexes,
+ ¶m->fp_mdt_index, LMV_TYPE);
+ if (ret)
+ return ret;
+ }
- rc = first_match(pattern, buffer);
- if (rc != 0)
- return rc;
+ if (param->fp_obd_uuid) {
+ ret = setup_indexes(dir, path, param->fp_obd_uuid,
+ param->fp_num_obds,
+ ¶m->fp_obd_indexes,
+ ¶m->fp_obd_index, LOV_TYPE);
+ if (ret)
+ return ret;
+ }
- strlcpy(clilovpath, buffer, sizeof(buffer));
+ param->fp_got_uuids = 1;
- return 0;
+ return ret;
}
-/*
- * Given the path to a stripe attribute proc file, tries to open and
- * read the attribute and return the value using the attr parameter
- */
-static int sattr_read_attr(const char *const fpath,
- unsigned int *attr)
+int llapi_ostlist(char *path, struct find_param *param)
{
+ int fd;
+ int ret;
- FILE *f;
- char line[PATH_MAX + 1];
- int rc = 0;
-
- f = fopen(fpath, "r");
- if (f == NULL) {
- rc = -errno;
- llapi_error(LLAPI_MSG_ERROR, rc, "Cannot open '%s'", fpath);
- return rc;
- }
+ fd = open(path, O_RDONLY | O_DIRECTORY);
+ if (fd < 0)
+ return -errno;
- if (fgets(line, sizeof(line), f) != NULL) {
- *attr = atoi(line);
- } else {
- llapi_error(LLAPI_MSG_ERROR, errno, "Cannot read from '%s'", fpath);
- rc = 1;
- }
+ ret = setup_obd_uuid(fd, path, param);
+ close(fd);
- fclose(f);
- return rc;
+ return ret;
}
/*
* using pathname.
*/
static int sattr_get_defaults(const char *const fsname,
- const char *const pathname,
unsigned int *scount,
unsigned int *ssize,
unsigned int *soffset)
{
- int rc;
- char dpath[PATH_MAX + 1];
- char fpath[PATH_MAX + 1];
+ char val[PATH_MAX];
+ int rc;
- rc = clilovpath(fsname, pathname, dpath);
- if (rc != 0)
- return rc;
+ if (scount) {
+ rc = get_lustre_param_value("lov", fsname, FILTER_BY_FS_NAME,
+ "stripecount", val, sizeof(val));
+ if (rc != 0)
+ return rc;
+ *scount = atoi(val);
+ }
- if (scount) {
- snprintf(fpath, PATH_MAX, "%s/stripecount", dpath);
- rc = sattr_read_attr(fpath, scount);
- if (rc != 0)
- return rc;
- }
+ if (ssize) {
+ rc = get_lustre_param_value("lov", fsname, FILTER_BY_FS_NAME,
+ "stripesize", val, sizeof(val));
+ if (rc != 0)
+ return rc;
+ *ssize = atoi(val);
+ }
- if (ssize) {
- snprintf(fpath, PATH_MAX, "%s/stripesize", dpath);
- rc = sattr_read_attr(fpath, ssize);
- if (rc != 0)
- return rc;
- }
-
- if (soffset) {
- snprintf(fpath, PATH_MAX, "%s/stripeoffset", dpath);
- rc = sattr_read_attr(fpath, soffset);
- if (rc != 0)
- return rc;
- }
+ if (soffset) {
+ rc = get_lustre_param_value("lov", fsname, FILTER_BY_FS_NAME,
+ "stripeoffset", val, sizeof(val));
+ if (rc != 0)
+ return rc;
+ *soffset = atoi(val);
+ }
- return 0;
+ return 0;
}
/*
* successfully retrieved and stored in tmp before writing to
* cache.
*/
- rc = sattr_get_defaults(fsname_buf, NULL, &tmp[0], &tmp[1],
- &tmp[2]);
+ rc = sattr_get_defaults(fsname_buf, &tmp[0], &tmp[1], &tmp[2]);
if (rc != 0)
return rc;
}
static void lov_dump_user_lmm_header(struct lov_user_md *lum, char *path,
- struct lov_user_ost_data_v1 *objects,
- int is_dir, int verbose, int depth,
- int raw, char *pool_name)
+ struct lov_user_ost_data_v1 *objects,
+ int is_dir, int verbose, int depth,
+ int raw, char *pool_name)
{
- char *prefix = is_dir ? "" : "lmm_";
- char *seperator = "";
- int rc;
+ char *prefix = is_dir ? "" : "lmm_";
+ char *separator = "";
+ int rc;
if (is_dir && lmm_oi_seq(&lum->lmm_oi) == FID_SEQ_LOV_DEFAULT) {
lmm_oi_set_seq(&lum->lmm_oi, 0);
llapi_printf(LLAPI_MSG_NORMAL, "(Default) ");
}
- if (depth && path && ((verbose != VERBOSE_OBJID) || !is_dir))
- llapi_printf(LLAPI_MSG_NORMAL, "%s\n", path);
+ if (depth && path && ((verbose != VERBOSE_OBJID) || !is_dir))
+ llapi_printf(LLAPI_MSG_NORMAL, "%s\n", path);
if ((verbose & VERBOSE_DETAIL) && !is_dir) {
llapi_printf(LLAPI_MSG_NORMAL, "lmm_magic: 0x%08X\n",
lum->lmm_magic);
- llapi_printf(LLAPI_MSG_NORMAL, "lmm_seq: "LPX64"\n",
- lmm_oi_seq(&lum->lmm_oi));
- llapi_printf(LLAPI_MSG_NORMAL, "lmm_object_id: "LPX64"\n",
- lmm_oi_id(&lum->lmm_oi));
+ llapi_printf(LLAPI_MSG_NORMAL, "lmm_seq: %#jx\n",
+ (uintmax_t)lmm_oi_seq(&lum->lmm_oi));
+ llapi_printf(LLAPI_MSG_NORMAL, "lmm_object_id: %#jx\n",
+ (uintmax_t)lmm_oi_id(&lum->lmm_oi));
+ }
+ if ((verbose & (VERBOSE_DETAIL | VERBOSE_DFID)) && !is_dir) {
+ if (verbose & ~VERBOSE_DFID)
+ llapi_printf(LLAPI_MSG_NORMAL, "lmm_fid: ");
+ /* This needs a bit of hand-holding since old 1.x lmm_oi
+ * have { oi.oi_id = mds_inum, oi.oi_seq = 0 } and 2.x lmm_oi
+ * have { oi.oi_id = mds_oid, oi.oi_seq = mds_seq } instead of
+ * a real FID. Ideally the 2.x code would have stored this
+ * like a FID with { oi_id = mds_seq, oi_seq = mds_oid } so the
+ * ostid union lu_fid { f_seq = mds_seq, f_oid = mds_oid }
+ * worked properly (especially since IGIF FIDs use mds_inum as
+ * the FID SEQ), but unfortunately that didn't happen.
+ *
+ * Print it to look like an IGIF FID, even though the fields
+ * are reversed on disk, so that it makes sense to userspace.
+ *
+ * Don't use ostid_id() and ostid_seq(), since they assume the
+ * oi_fid fields are in the right order. This is why there are
+ * separate lmm_oi_seq() and lmm_oi_id() routines for this.
+ *
+ * For newer layout types hopefully this will be a real FID. */
+ llapi_printf(LLAPI_MSG_NORMAL, DFID"\n",
+ lmm_oi_seq(&lum->lmm_oi) == 0 ?
+ lmm_oi_id(&lum->lmm_oi) :
+ lmm_oi_seq(&lum->lmm_oi),
+ lmm_oi_seq(&lum->lmm_oi) == 0 ?
+ 0 : (__u32)lmm_oi_id(&lum->lmm_oi),
+ (__u32)(lmm_oi_id(&lum->lmm_oi) >> 32));
}
- if (verbose & VERBOSE_COUNT) {
- if (verbose & ~VERBOSE_COUNT)
- llapi_printf(LLAPI_MSG_NORMAL, "%sstripe_count: ",
- prefix);
- if (is_dir) {
- if (!raw && lum->lmm_stripe_count == 0) {
- unsigned int scount;
- rc = sattr_cache_get_defaults(NULL, path,
- &scount, NULL,
- NULL);
- if (rc == 0)
+ if (verbose & VERBOSE_COUNT) {
+ if (verbose & ~VERBOSE_COUNT)
+ llapi_printf(LLAPI_MSG_NORMAL, "%sstripe_count: ",
+ prefix);
+ if (is_dir) {
+ if (!raw && lum->lmm_stripe_count == 0) {
+ unsigned int scount;
+ rc = sattr_cache_get_defaults(NULL, path,
+ &scount, NULL,
+ NULL);
+ if (rc == 0)
llapi_printf(LLAPI_MSG_NORMAL, "%d",
scount);
- else
- llapi_error(LLAPI_MSG_ERROR, rc,
- "Cannot determine default"
- " stripe count.");
- } else {
+ else
+ llapi_error(LLAPI_MSG_ERROR, rc,
+ "Cannot determine default"
+ " stripe count.");
+ } else {
llapi_printf(LLAPI_MSG_NORMAL, "%d",
- lum->lmm_stripe_count ==
- (typeof(lum->lmm_stripe_count))(-1)
+ lum->lmm_stripe_count ==
+ (typeof(lum->lmm_stripe_count))(-1)
? -1 : lum->lmm_stripe_count);
- }
- } else {
+ }
+ } else {
llapi_printf(LLAPI_MSG_NORMAL, "%hd",
(__s16)lum->lmm_stripe_count);
- }
- seperator = is_dir ? " " : "\n";
- }
+ }
+ separator = is_dir ? " " : "\n";
+ }
- if (verbose & VERBOSE_SIZE) {
- llapi_printf(LLAPI_MSG_NORMAL, "%s", seperator);
- if (verbose & ~VERBOSE_SIZE)
- llapi_printf(LLAPI_MSG_NORMAL, "%sstripe_size: ",
- prefix);
- if (is_dir && !raw && lum->lmm_stripe_size == 0) {
- unsigned int ssize;
- rc = sattr_cache_get_defaults(NULL, path, NULL, &ssize,
- NULL);
- if (rc == 0)
+ if (verbose & VERBOSE_SIZE) {
+ llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
+ if (verbose & ~VERBOSE_SIZE)
+ llapi_printf(LLAPI_MSG_NORMAL, "%sstripe_size: ",
+ prefix);
+ if (is_dir && !raw && lum->lmm_stripe_size == 0) {
+ unsigned int ssize;
+ rc = sattr_cache_get_defaults(NULL, path, NULL, &ssize,
+ NULL);
+ if (rc == 0)
llapi_printf(LLAPI_MSG_NORMAL, "%u", ssize);
- else
- llapi_error(LLAPI_MSG_ERROR, rc,
- "Cannot determine default"
- " stripe size.");
- } else {
+ else
+ llapi_error(LLAPI_MSG_ERROR, rc,
+ "Cannot determine default"
+ " stripe size.");
+ } else {
llapi_printf(LLAPI_MSG_NORMAL, "%u",
lum->lmm_stripe_size);
- }
- seperator = is_dir ? " " : "\n";
- }
+ }
+ separator = is_dir ? " " : "\n";
+ }
if ((verbose & VERBOSE_LAYOUT) && !is_dir) {
- llapi_printf(LLAPI_MSG_NORMAL, "%s", seperator);
+ llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
if (verbose & ~VERBOSE_LAYOUT)
llapi_printf(LLAPI_MSG_NORMAL, "%spattern: ",
prefix);
llapi_printf(LLAPI_MSG_NORMAL, "%.x", lum->lmm_pattern);
- seperator = "\n";
+ separator = "\n";
}
- if ((verbose & VERBOSE_GENERATION) && !is_dir) {
- llapi_printf(LLAPI_MSG_NORMAL, "%s", seperator);
- if (verbose & ~VERBOSE_GENERATION)
- llapi_printf(LLAPI_MSG_NORMAL, "%slayout_gen: ",
- prefix);
+ if ((verbose & VERBOSE_GENERATION) && !is_dir) {
+ llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
+ if (verbose & ~VERBOSE_GENERATION)
+ llapi_printf(LLAPI_MSG_NORMAL, "%slayout_gen: ",
+ prefix);
llapi_printf(LLAPI_MSG_NORMAL, "%u",
(int)lum->lmm_layout_gen);
- seperator = "\n";
- }
+ separator = "\n";
+ }
- if (verbose & VERBOSE_OFFSET) {
- llapi_printf(LLAPI_MSG_NORMAL, "%s", seperator);
- if (verbose & ~VERBOSE_OFFSET)
- llapi_printf(LLAPI_MSG_NORMAL, "%sstripe_offset: ",
- prefix);
- if (is_dir)
+ if (verbose & VERBOSE_OFFSET) {
+ llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
+ if (verbose & ~VERBOSE_OFFSET)
+ llapi_printf(LLAPI_MSG_NORMAL, "%sstripe_offset: ",
+ prefix);
+ if (is_dir)
llapi_printf(LLAPI_MSG_NORMAL, "%d",
- lum->lmm_stripe_offset ==
- (typeof(lum->lmm_stripe_offset))(-1) ? -1 :
+ lum->lmm_stripe_offset ==
+ (typeof(lum->lmm_stripe_offset))(-1) ? -1 :
lum->lmm_stripe_offset);
- else
+ else
llapi_printf(LLAPI_MSG_NORMAL, "%u",
objects[0].l_ost_idx);
- seperator = is_dir ? " " : "\n";
- }
+ separator = is_dir ? " " : "\n";
+ }
- if ((verbose & VERBOSE_POOL) && (pool_name != NULL)) {
- llapi_printf(LLAPI_MSG_NORMAL, "%s", seperator);
- if (verbose & ~VERBOSE_POOL)
- llapi_printf(LLAPI_MSG_NORMAL, "%spool: ",
- prefix);
+ if ((verbose & VERBOSE_POOL) && (pool_name != NULL)) {
+ llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
+ if (verbose & ~VERBOSE_POOL)
+ llapi_printf(LLAPI_MSG_NORMAL, "%spool: ",
+ prefix);
llapi_printf(LLAPI_MSG_NORMAL, "%s", pool_name);
- }
+ }
- if (!is_dir || (is_dir && (verbose != VERBOSE_OBJID)))
- llapi_printf(LLAPI_MSG_NORMAL, "\n");
+ if (!is_dir || (is_dir && (verbose != VERBOSE_OBJID)))
+ llapi_printf(LLAPI_MSG_NORMAL, "\n");
}
void lov_dump_user_lmm_v1v3(struct lov_user_md *lum, char *pool_name,
/* show all information default */
if (!verbose) {
if (lum->lum_magic == LMV_USER_MAGIC)
- verbose = VERBOSE_POOL | VERBOSE_COUNT | VERBOSE_OFFSET;
+ verbose = VERBOSE_POOL | VERBOSE_COUNT |
+ VERBOSE_OFFSET | VERBOSE_HASH_TYPE;
else
verbose = VERBOSE_OBJID;
}
llapi_printf(LLAPI_MSG_NORMAL, "lmv_stripe_offset: ");
llapi_printf(LLAPI_MSG_NORMAL, "%d",
(int)lum->lum_stripe_offset);
+ if (verbose & VERBOSE_HASH_TYPE)
+ separator = " ";
+ else
+ separator = "\n";
+ }
+
+ if (verbose & VERBOSE_HASH_TYPE) {
+ unsigned int type = lum->lum_hash_type;
+
+ llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
+ if (verbose & ~VERBOSE_HASH_TYPE)
+ llapi_printf(LLAPI_MSG_NORMAL, "lmv_hash_type: ");
+ if (type < LMV_HASH_TYPE_MAX)
+ llapi_printf(LLAPI_MSG_NORMAL, "%s",
+ mdt_hash_name[type]);
+ else
+ llapi_printf(LLAPI_MSG_NORMAL, "%d",
+ (int)type);
separator = "\n";
}
}
- if ((verbose & VERBOSE_POOL) && (pool_name[0] != '\0')) {
+ if ((verbose & VERBOSE_POOL) && pool_name != NULL &&
+ pool_name[0] != '\0') {
llapi_printf(LLAPI_MSG_NORMAL, "%s", separator);
if (verbose & ~VERBOSE_POOL)
llapi_printf(LLAPI_MSG_NORMAL, "%slmv_pool: ",
{
__u32 magic;
- if (param->get_lmv || param->get_default_lmv)
+ if (param->fp_get_lmv || param->fp_get_default_lmv)
magic = (__u32)param->fp_lmv_md->lum_magic;
else
- magic = *(__u32 *)¶m->lmd->lmd_lmm; /* lum->lmm_magic */
+ magic = *(__u32 *)¶m->fp_lmd->lmd_lmm; /* lum->lmm_magic */
switch (magic) {
case LOV_USER_MAGIC_V1:
- lov_dump_user_lmm_v1v3(¶m->lmd->lmd_lmm, NULL,
- param->lmd->lmd_lmm.lmm_objects,
- path, is_dir,
- param->obdindex, param->fp_max_depth,
- param->verbose, param->raw);
+ lov_dump_user_lmm_v1v3(¶m->fp_lmd->lmd_lmm, NULL,
+ param->fp_lmd->lmd_lmm.lmm_objects,
+ path, is_dir,
+ param->fp_obd_index, param->fp_max_depth,
+ param->fp_verbose, param->fp_raw);
break;
case LOV_USER_MAGIC_V3: {
char pool_name[LOV_MAXPOOLNAME + 1];
struct lov_user_ost_data_v1 *objects;
- struct lov_user_md_v3 *lmmv3 = (void *)¶m->lmd->lmd_lmm;
+ struct lov_user_md_v3 *lmmv3 = (void *)¶m->fp_lmd->lmd_lmm;
strlcpy(pool_name, lmmv3->lmm_pool_name, sizeof(pool_name));
- objects = lmmv3->lmm_objects;
- lov_dump_user_lmm_v1v3(¶m->lmd->lmd_lmm, pool_name,
- objects, path, is_dir,
- param->obdindex, param->fp_max_depth,
- param->verbose, param->raw);
+ objects = lmmv3->lmm_objects;
+ lov_dump_user_lmm_v1v3(¶m->fp_lmd->lmd_lmm,
+ pool_name[0] == '\0' ? NULL : pool_name,
+ objects, path, is_dir,
+ param->fp_obd_index, param->fp_max_depth,
+ param->fp_verbose, param->fp_raw);
break;
}
case LMV_MAGIC_V1:
lum = (struct lmv_user_md *)param->fp_lmv_md;
strlcpy(pool_name, lum->lum_pool_name, sizeof(pool_name));
- lmv_dump_user_lmm(lum, pool_name, path,
- param->obdindex, param->fp_max_depth,
- param->verbose);
+ lmv_dump_user_lmm(lum,
+ pool_name[0] == '\0' ? NULL : pool_name,
+ path, param->fp_obd_index,
+ param->fp_max_depth, param->fp_verbose);
break;
}
default:
llapi_printf(LLAPI_MSG_NORMAL, "unknown lmm_magic: %#x "
"(expecting one of %#x %#x %#x %#x)\n",
- *(__u32 *)¶m->lmd->lmd_lmm,
+ *(__u32 *)¶m->fp_lmd->lmd_lmm,
LOV_USER_MAGIC_V1, LOV_USER_MAGIC_V3,
LMV_USER_MAGIC, LMV_MAGIC_V1);
return;
int llapi_file_get_stripe(const char *path, struct lov_user_md *lum)
{
- const char *fname;
- char *dname;
- int fd, rc = 0;
-
- fname = strrchr(path, '/');
-
- /* It should be a file (or other non-directory) */
- if (fname == NULL) {
- dname = (char *)malloc(2);
- if (dname == NULL)
- return -ENOMEM;
- strcpy(dname, ".");
- fname = (char *)path;
- } else {
- dname = (char *)malloc(fname - path + 1);
- if (dname == NULL)
- return -ENOMEM;
- strncpy(dname, path, fname - path);
- dname[fname - path] = '\0';
- fname++;
- }
+ const char *fname;
+ char *dname;
+ int fd, rc = 0;
- fd = open(dname, O_RDONLY);
- if (fd == -1) {
- rc = -errno;
- free(dname);
- return rc;
- }
+ fname = strrchr(path, '/');
- strcpy((char *)lum, fname);
- if (ioctl(fd, IOC_MDC_GETFILESTRIPE, (void *)lum) == -1)
- rc = -errno;
+ /* It should be a file (or other non-directory) */
+ if (fname == NULL) {
+ dname = (char *)malloc(2);
+ if (dname == NULL)
+ return -ENOMEM;
+ strcpy(dname, ".");
+ fname = (char *)path;
+ } else {
+ dname = (char *)malloc(fname - path + 1);
+ if (dname == NULL)
+ return -ENOMEM;
+ strncpy(dname, path, fname - path);
+ dname[fname - path] = '\0';
+ fname++;
+ }
- if (close(fd) == -1 && rc == 0)
- rc = -errno;
+ fd = open(dname, O_RDONLY | O_NONBLOCK);
+ if (fd == -1) {
+ rc = -errno;
+ free(dname);
+ return rc;
+ }
- free(dname);
- return rc;
+ strcpy((char *)lum, fname);
+ if (ioctl(fd, IOC_MDC_GETFILESTRIPE, (void *)lum) == -1)
+ rc = -errno;
+
+ if (close(fd) == -1 && rc == 0)
+ rc = -errno;
+
+ free(dname);
+ return rc;
}
int llapi_file_lookup(int dirfd, const char *name)
*/
static int check_obd_match(struct find_param *param)
{
- lstat_t *st = ¶m->lmd->lmd_st;
- struct lov_user_ost_data_v1 *lmm_objects;
- int i, j;
+ lstat_t *st = ¶m->fp_lmd->lmd_st;
+ struct lov_user_ost_data_v1 *lmm_objects;
+ int i, j;
- if (param->obduuid && param->obdindex == OBD_NOT_FOUND)
- return 0;
+ if (param->fp_obd_uuid && param->fp_obd_index == OBD_NOT_FOUND)
+ return 0;
- if (!S_ISREG(st->st_mode))
- return 0;
+ if (!S_ISREG(st->st_mode))
+ return 0;
- /* Only those files should be accepted, which have a
- * stripe on the specified OST. */
- if (!param->lmd->lmd_lmm.lmm_stripe_count)
- return 0;
+ /* Only those files should be accepted, which have a
+ * stripe on the specified OST. */
+ if (!param->fp_lmd->lmd_lmm.lmm_stripe_count)
+ return 0;
- if (param->lmd->lmd_lmm.lmm_magic ==
- LOV_USER_MAGIC_V3) {
- struct lov_user_md_v3 *lmmv3 = (void *)¶m->lmd->lmd_lmm;
+ if (param->fp_lmd->lmd_lmm.lmm_magic ==
+ LOV_USER_MAGIC_V3) {
+ struct lov_user_md_v3 *lmmv3 = (void *)¶m->fp_lmd->lmd_lmm;
- lmm_objects = lmmv3->lmm_objects;
- } else if (param->lmd->lmd_lmm.lmm_magic == LOV_USER_MAGIC_V1) {
- lmm_objects = param->lmd->lmd_lmm.lmm_objects;
- } else {
- llapi_err_noerrno(LLAPI_MSG_ERROR, "%s:Unknown magic: 0x%08X\n",
- __func__, param->lmd->lmd_lmm.lmm_magic);
- return -EINVAL;
- }
+ lmm_objects = lmmv3->lmm_objects;
+ } else if (param->fp_lmd->lmd_lmm.lmm_magic == LOV_USER_MAGIC_V1) {
+ lmm_objects = param->fp_lmd->lmd_lmm.lmm_objects;
+ } else {
+ llapi_err_noerrno(LLAPI_MSG_ERROR, "%s:Unknown magic: 0x%08X\n",
+ __func__, param->fp_lmd->lmd_lmm.lmm_magic);
+ return -EINVAL;
+ }
- for (i = 0; i < param->lmd->lmd_lmm.lmm_stripe_count; i++) {
- for (j = 0; j < param->num_obds; j++) {
- if (param->obdindexes[j] ==
- lmm_objects[i].l_ost_idx) {
- if (param->exclude_obd)
- return 0;
- return 1;
- }
- }
- }
+ for (i = 0; i < param->fp_lmd->lmd_lmm.lmm_stripe_count; i++) {
+ for (j = 0; j < param->fp_num_obds; j++) {
+ if (param->fp_obd_indexes[j] ==
+ lmm_objects[i].l_ost_idx) {
+ if (param->fp_exclude_obd)
+ return 0;
+ return 1;
+ }
+ }
+ }
- if (param->exclude_obd)
+ if (param->fp_exclude_obd)
return 1;
- return 0;
+
+ return 0;
}
static int check_mdt_match(struct find_param *param)
{
- int i;
+ int i;
- if (param->mdtuuid && param->mdtindex == OBD_NOT_FOUND)
- return 0;
+ if (param->fp_mdt_uuid && param->fp_mdt_index == OBD_NOT_FOUND)
+ return 0;
- /* FIXME: For striped dir, we should get stripe information and check */
- for (i = 0; i < param->num_mdts; i++) {
- if (param->mdtindexes[i] == param->file_mdtindex)
- return !param->exclude_mdt;
+ /* FIXME: For striped dir, we should get stripe information and check */
+ for (i = 0; i < param->fp_num_mdts; i++) {
+ if (param->fp_mdt_indexes[i] == param->fp_file_mdt_index)
+ return !param->fp_exclude_mdt;
}
- if (param->exclude_mdt)
- return 1;
- return 0;
+ if (param->fp_exclude_mdt)
+ return 1;
+
+ return 0;
}
/**
{
struct obd_statfs stat_buf;
struct obd_uuid uuid_buf;
- int ret;
+ int ret;
- LASSERT(type == LL_STATFS_LOV || type == LL_STATFS_LMV);
+ if (type != LL_STATFS_LOV && type != LL_STATFS_LMV)
+ return -EINVAL;
memset(&stat_buf, 0, sizeof(struct obd_statfs));
memset(&uuid_buf, 0, sizeof(struct obd_uuid));
- ret = llapi_obd_statfs(path, type,
- param->obdindex, &stat_buf,
- &uuid_buf);
- if (ret) {
- llapi_printf(LLAPI_MSG_NORMAL,
- "obd_uuid: %s failed %s ",
- param->obduuid->uuid,
- strerror(errno));
- }
- return ret;
+ ret = llapi_obd_statfs(path, type,
+ param->fp_obd_index, &stat_buf,
+ &uuid_buf);
+ if (ret) {
+ llapi_printf(LLAPI_MSG_NORMAL,
+ "obd_uuid: %s failed %s ",
+ param->fp_obd_uuid->uuid,
+ strerror(errno));
+ }
+
+ return ret;
}
static int cb_find_init(char *path, DIR *parent, DIR **dirp,
struct find_param *param = (struct find_param *)data;
DIR *dir = dirp == NULL ? NULL : *dirp;
int decision = 1; /* 1 is accepted; -1 is rejected. */
- lstat_t *st = ¶m->lmd->lmd_st;
+ lstat_t *st = ¶m->fp_lmd->lmd_st;
int lustre_fs = 1;
int checked_type = 0;
int ret = 0;
- LASSERT(parent != NULL || dir != NULL);
+ if (parent == NULL && dir == NULL)
+ return -EINVAL;
- if (param->have_fileinfo == 0)
- param->lmd->lmd_lmm.lmm_stripe_count = 0;
+ param->fp_lmd->lmd_lmm.lmm_stripe_count = 0;
- /* If a regular expression is presented, make the initial decision */
- if (param->pattern != NULL) {
- char *fname = strrchr(path, '/');
- fname = (fname == NULL ? path : fname + 1);
- ret = fnmatch(param->pattern, fname, 0);
- if ((ret == FNM_NOMATCH && !param->exclude_pattern) ||
- (ret == 0 && param->exclude_pattern))
- goto decided;
- }
+ /* If a regular expression is presented, make the initial decision */
+ if (param->fp_pattern != NULL) {
+ char *fname = strrchr(path, '/');
+ fname = (fname == NULL ? path : fname + 1);
+ ret = fnmatch(param->fp_pattern, fname, 0);
+ if ((ret == FNM_NOMATCH && !param->fp_exclude_pattern) ||
+ (ret == 0 && param->fp_exclude_pattern))
+ goto decided;
+ }
/* See if we can check the file type from the dirent. */
if (param->fp_type != 0 && de != NULL && de->d_type != DT_UNKNOWN) {
}
}
- ret = 0;
+ ret = 0;
- /* Request MDS for the stat info if some of these parameters need
- * to be compared. */
- if (param->obduuid || param->mdtuuid ||
+ /* Request MDS for the stat info if some of these parameters need
+ * to be compared. */
+ if (param->fp_obd_uuid || param->fp_mdt_uuid ||
param->fp_check_uid || param->fp_check_gid ||
param->fp_atime || param->fp_mtime || param->fp_ctime ||
- param->check_pool || param->check_size ||
- param->check_stripecount || param->check_stripesize ||
- param->check_layout)
+ param->fp_check_pool || param->fp_check_size ||
+ param->fp_check_stripe_count || param->fp_check_stripe_size ||
+ param->fp_check_layout)
decision = 0;
if (param->fp_type != 0 && checked_type == 0)
decision = 0;
- if (param->have_fileinfo == 0 && decision == 0) {
- ret = get_lmd_info(path, parent, dir, param->lmd,
- param->lumlen);
- if (ret == 0) {
- if (dir) {
- ret = llapi_file_fget_mdtidx(dirfd(dir),
- ¶m->file_mdtindex);
- } else {
- int fd;
- lstat_t tmp_st;
-
- ret = lstat_f(path, &tmp_st);
- if (ret) {
- ret = -errno;
- llapi_error(LLAPI_MSG_ERROR, ret,
- "error: %s: lstat failed"
- "for %s", __func__, path);
- return ret;
- }
- if (S_ISREG(tmp_st.st_mode)) {
- fd = open(path, O_RDONLY);
- if (fd > 0) {
- ret = llapi_file_fget_mdtidx(fd,
- ¶m->file_mdtindex);
- close(fd);
- } else {
- ret = fd;
- }
- } else {
- /* For special inode, it assumes to
- * reside on the same MDT with the
- * parent */
- fd = dirfd(parent);
- ret = llapi_file_fget_mdtidx(fd,
- ¶m->file_mdtindex);
- }
- }
- }
- if (ret) {
- if (ret == -ENOTTY)
- lustre_fs = 0;
- if (ret == -ENOENT)
- goto decided;
- return ret;
- }
- }
+ if (decision == 0) {
+ ret = get_lmd_info(path, parent, dir, param->fp_lmd,
+ param->fp_lum_size);
+ if (ret == 0 && param->fp_lmd->lmd_lmm.lmm_magic == 0 &&
+ (param->fp_check_pool || param->fp_check_stripe_count ||
+ param->fp_check_stripe_size || param->fp_check_layout)) {
+ struct lov_user_md *lmm = ¶m->fp_lmd->lmd_lmm;
+
+ /* We need to "fake" the "use the default" values
+ * since the lmm struct is zeroed out at this point. */
+ lmm->lmm_magic = LOV_USER_MAGIC_V1;
+ lmm->lmm_pattern = 0xFFFFFFFF;
+ if (!param->fp_raw)
+ ostid_set_seq(&lmm->lmm_oi,
+ FID_SEQ_LOV_DEFAULT);
+ lmm->lmm_stripe_size = 0;
+ lmm->lmm_stripe_count = 0;
+ lmm->lmm_stripe_offset = -1;
+ }
+ if (ret == 0 && param->fp_mdt_uuid != NULL) {
+ if (dir != NULL) {
+ ret = llapi_file_fget_mdtidx(dirfd(dir),
+ ¶m->fp_file_mdt_index);
+ } else if (S_ISREG(st->st_mode)) {
+ int fd;
+
+ /* FIXME: we could get the MDT index from the
+ * file's FID in lmd->lmd_lmm.lmm_oi without
+ * opening the file, once we are sure that
+ * LFSCK2 (2.6) has fixed up pre-2.0 LOV EAs.
+ * That would still be an ioctl() to map the
+ * FID to the MDT, but not an open RPC. */
+ fd = open(path, O_RDONLY);
+ if (fd > 0) {
+ ret = llapi_file_fget_mdtidx(fd,
+ ¶m->fp_file_mdt_index);
+ close(fd);
+ } else {
+ ret = -errno;
+ }
+ } else {
+ /* For a special file, we assume it resides on
+ * the same MDT as the parent directory. */
+ ret = llapi_file_fget_mdtidx(dirfd(parent),
+ ¶m->fp_file_mdt_index);
+ }
+ }
+ if (ret != 0) {
+ if (ret == -ENOTTY)
+ lustre_fs = 0;
+ if (ret == -ENOENT)
+ goto decided;
+
+ return ret;
+ }
+ }
if (param->fp_type && !checked_type) {
if ((st->st_mode & S_IFMT) == param->fp_type) {
}
/* Prepare odb. */
- if (param->obduuid || param->mdtuuid) {
- if (lustre_fs && param->got_uuids &&
+ if (param->fp_obd_uuid || param->fp_mdt_uuid) {
+ if (lustre_fs && param->fp_got_uuids &&
param->fp_dev != st->st_dev) {
- /* A lustre/lustre mount point is crossed. */
- param->got_uuids = 0;
- param->obds_printed = 0;
- param->obdindex = param->mdtindex = OBD_NOT_FOUND;
- }
+ /* A lustre/lustre mount point is crossed. */
+ param->fp_got_uuids = 0;
+ param->fp_obds_printed = 0;
+ param->fp_mdt_index = OBD_NOT_FOUND;
+ param->fp_obd_index = OBD_NOT_FOUND;
+ }
- if (lustre_fs && !param->got_uuids) {
- ret = setup_target_indexes(dir ? dir : parent, path,
- param);
- if (ret)
- return ret;
+ if (lustre_fs && !param->fp_got_uuids) {
+ ret = setup_target_indexes(dir ? dir : parent, path,
+ param);
+ if (ret)
+ return ret;
param->fp_dev = st->st_dev;
- } else if (!lustre_fs && param->got_uuids) {
- /* A lustre/non-lustre mount point is crossed. */
- param->got_uuids = 0;
- param->obdindex = param->mdtindex = OBD_NOT_FOUND;
+ } else if (!lustre_fs && param->fp_got_uuids) {
+ /* A lustre/non-lustre mount point is crossed. */
+ param->fp_got_uuids = 0;
+ param->fp_mdt_index = OBD_NOT_FOUND;
+ param->fp_obd_index = OBD_NOT_FOUND;
}
}
- if (param->check_stripesize) {
- decision = find_value_cmp(param->lmd->lmd_lmm.lmm_stripe_size,
- param->stripesize,
- param->stripesize_sign,
- param->exclude_stripesize,
- param->stripesize_units, 0);
- if (decision == -1)
- goto decided;
- }
+ if (param->fp_check_stripe_size) {
+ decision = find_value_cmp(
+ param->fp_lmd->lmd_lmm.lmm_stripe_size,
+ param->fp_stripe_size,
+ param->fp_stripe_size_sign,
+ param->fp_exclude_stripe_size,
+ param->fp_stripe_size_units, 0);
+ if (decision == -1)
+ goto decided;
+ }
- if (param->check_stripecount) {
- decision = find_value_cmp(param->lmd->lmd_lmm.lmm_stripe_count,
- param->stripecount,
- param->stripecount_sign,
- param->exclude_stripecount, 1, 0);
- if (decision == -1)
- goto decided;
+ if (param->fp_check_stripe_count) {
+ decision = find_value_cmp(
+ param->fp_lmd->lmd_lmm.lmm_stripe_count,
+ param->fp_stripe_count,
+ param->fp_stripe_count_sign,
+ param->fp_exclude_stripe_count, 1, 0);
+ if (decision == -1)
+ goto decided;
}
- if (param->check_layout) {
+ if (param->fp_check_layout) {
__u32 found;
- found = (param->lmd->lmd_lmm.lmm_pattern & param->layout);
- if ((param->lmd->lmd_lmm.lmm_pattern == 0xFFFFFFFF) ||
- (found && param->exclude_layout) ||
- (!found && !param->exclude_layout)) {
+ found = (param->fp_lmd->lmd_lmm.lmm_pattern & param->fp_layout);
+ if ((param->fp_lmd->lmd_lmm.lmm_pattern == 0xFFFFFFFF) ||
+ (found && param->fp_exclude_layout) ||
+ (!found && !param->fp_exclude_layout)) {
decision = -1;
goto decided;
}
}
- /* If an OBD UUID is specified but none matches, skip this file. */
- if ((param->obduuid && param->obdindex == OBD_NOT_FOUND) ||
- (param->mdtuuid && param->mdtindex == OBD_NOT_FOUND))
- goto decided;
-
- /* If a OST or MDT UUID is given, and some OST matches,
- * check it here. */
- if (param->obdindex != OBD_NOT_FOUND ||
- param->mdtindex != OBD_NOT_FOUND) {
- if (param->obduuid) {
- if (check_obd_match(param)) {
- /* If no mdtuuid is given, we are done.
- * Otherwise, fall through to the mdtuuid
- * check below. */
- if (!param->mdtuuid)
- goto obd_matches;
- } else {
- goto decided;
- }
- }
- if (param->mdtuuid) {
- if (check_mdt_match(param))
- goto obd_matches;
- goto decided;
- }
- }
+ /* If an OBD UUID is specified but none matches, skip this file. */
+ if ((param->fp_obd_uuid && param->fp_obd_index == OBD_NOT_FOUND) ||
+ (param->fp_mdt_uuid && param->fp_mdt_index == OBD_NOT_FOUND))
+ goto decided;
+
+ /* If an OST or MDT UUID is given, and some OST matches,
+ * check it here. */
+ if (param->fp_obd_index != OBD_NOT_FOUND ||
+ param->fp_mdt_index != OBD_NOT_FOUND) {
+ if (param->fp_obd_uuid) {
+ if (check_obd_match(param)) {
+ /* If no mdtuuid is given, we are done.
+ * Otherwise, fall through to the mdtuuid
+ * check below. */
+ if (!param->fp_mdt_uuid)
+ goto obd_matches;
+ } else {
+ goto decided;
+ }
+ }
+
+ if (param->fp_mdt_uuid) {
+ if (check_mdt_match(param))
+ goto obd_matches;
+ goto decided;
+ }
+ }
+
obd_matches:
if (param->fp_check_uid) {
if (st->st_uid == param->fp_uid) {
if (param->fp_exclude_uid)
goto decided;
- } else {
+ } else {
if (!param->fp_exclude_uid)
goto decided;
- }
- }
+ }
+ }
if (param->fp_check_gid) {
if (st->st_gid == param->fp_gid) {
}
}
- if (param->check_pool) {
- struct lov_user_md_v3 *lmmv3 = (void *)¶m->lmd->lmd_lmm;
-
- /* empty requested pool is taken as no pool search => V1 */
- if (((param->lmd->lmd_lmm.lmm_magic == LOV_USER_MAGIC_V1) &&
- (param->poolname[0] == '\0')) ||
- ((param->lmd->lmd_lmm.lmm_magic == LOV_USER_MAGIC_V3) &&
- (strncmp(lmmv3->lmm_pool_name,
- param->poolname, LOV_MAXPOOLNAME) == 0)) ||
- ((param->lmd->lmd_lmm.lmm_magic == LOV_USER_MAGIC_V3) &&
- (strcmp(param->poolname, "*") == 0))) {
- if (param->exclude_pool)
- goto decided;
- } else {
- if (!param->exclude_pool)
- goto decided;
- }
- }
+ if (param->fp_check_pool) {
+ struct lov_user_md_v3 *lmmv3 = (void *)¶m->fp_lmd->lmd_lmm;
+
+ /* empty requested pool is taken as no pool search => V1 */
+ if (((param->fp_lmd->lmd_lmm.lmm_magic == LOV_USER_MAGIC_V1) &&
+ (param->fp_poolname[0] == '\0')) ||
+ ((param->fp_lmd->lmd_lmm.lmm_magic == LOV_USER_MAGIC_V3) &&
+ (strncmp(lmmv3->lmm_pool_name,
+ param->fp_poolname, LOV_MAXPOOLNAME) == 0)) ||
+ ((param->fp_lmd->lmd_lmm.lmm_magic == LOV_USER_MAGIC_V3) &&
+ (strcmp(param->fp_poolname, "*") == 0))) {
+ if (param->fp_exclude_pool)
+ goto decided;
+ } else {
+ if (!param->fp_exclude_pool)
+ goto decided;
+ }
+ }
/* Check the time on mds. */
decision = 1;
if (param->fp_atime || param->fp_mtime || param->fp_ctime) {
int for_mds;
- for_mds = lustre_fs ? (S_ISREG(st->st_mode) &&
- param->lmd->lmd_lmm.lmm_stripe_count)
- : 0;
+ for_mds = lustre_fs ? (S_ISREG(st->st_mode) &&
+ param->fp_lmd->lmd_lmm.lmm_stripe_count)
+ : 0;
decision = find_time_check(st, param, for_mds);
if (decision == -1)
goto decided;
The regular stat is almost of the same speed as some new
'glimpse-size-ioctl'. */
- if (param->check_size && S_ISREG(st->st_mode) &&
- param->lmd->lmd_lmm.lmm_stripe_count)
+ if (param->fp_check_size && S_ISREG(st->st_mode) &&
+ param->fp_lmd->lmd_lmm.lmm_stripe_count)
decision = 0;
- while (!decision) {
+ if (param->fp_check_size && S_ISDIR(st->st_mode))
+ decision = 0;
+
+ if (!decision) {
/* For regular files with the stripe the decision may have not
* been taken yet if *time or size is to be checked. */
- LASSERT((S_ISREG(st->st_mode) &&
- param->lmd->lmd_lmm.lmm_stripe_count) ||
- param->mdtindex != OBD_NOT_FOUND);
-
- if (param->obdindex != OBD_NOT_FOUND)
+ if (param->fp_obd_index != OBD_NOT_FOUND)
print_failed_tgt(param, path, LL_STATFS_LOV);
- if (param->mdtindex != OBD_NOT_FOUND)
+ if (param->fp_mdt_index != OBD_NOT_FOUND)
print_failed_tgt(param, path, LL_STATFS_LMV);
- if (dir) {
- ret = ioctl(dirfd(dir), IOC_LOV_GETINFO,
- (void *)param->lmd);
- } else if (parent) {
- ret = ioctl(dirfd(parent), IOC_LOV_GETINFO,
- (void *)param->lmd);
- }
+ if (dir != NULL)
+ ret = fstat_f(dirfd(dir), st);
+ else if (de != NULL)
+ ret = fstatat_f(dirfd(parent), de->d_name, st,
+ AT_SYMLINK_NOFOLLOW);
+ else
+ ret = lstat_f(path, st);
if (ret) {
if (errno == ENOENT) {
decision = find_time_check(st, param, 0);
if (decision == -1)
goto decided;
-
- break;
}
- if (param->check_size)
- decision = find_value_cmp(st->st_size, param->size,
- param->size_sign, param->exclude_size,
- param->size_units, 0);
+ if (param->fp_check_size)
+ decision = find_value_cmp(st->st_size, param->fp_size,
+ param->fp_size_sign,
+ param->fp_exclude_size,
+ param->fp_size_units, 0);
if (decision != -1) {
llapi_printf(LLAPI_MSG_NORMAL, "%s", path);
- if (param->zeroend)
+ if (param->fp_zero_end)
llapi_printf(LLAPI_MSG_NORMAL, "%c", '\0');
else
llapi_printf(LLAPI_MSG_NORMAL, "\n");
return 0;
}
-static int cb_mv_init(char *path, DIR *parent, DIR **dirp,
- void *param_data, struct dirent64 *de)
+static int cb_migrate_mdt_init(char *path, DIR *parent, DIR **dirp,
+ void *param_data, struct dirent64 *de)
{
struct find_param *param = (struct find_param *)param_data;
- DIR *dir = parent;
+ DIR *tmp_parent = parent;
char raw[OBD_MAX_IOCTL_BUFFER] = {'\0'};
char *rawbuf = raw;
struct obd_ioctl_data data = { 0 };
int fd;
int ret;
+ char *path_copy;
char *filename;
+ bool retry = false;
+
+ if (parent == NULL && dirp == NULL)
+ return -EINVAL;
- LASSERT(parent != NULL || dirp != NULL);
if (dirp != NULL)
closedir(*dirp);
if (parent == NULL) {
- dir = opendir_parent(path);
- if (dir == NULL) {
+ tmp_parent = opendir_parent(path);
+ if (tmp_parent == NULL) {
*dirp = NULL;
ret = -errno;
llapi_error(LLAPI_MSG_ERROR, ret,
}
}
- fd = dirfd(dir);
+ fd = dirfd(tmp_parent);
- filename = basename(path);
+ path_copy = strdup(path);
+ filename = basename(path_copy);
data.ioc_inlbuf1 = (char *)filename;
data.ioc_inllen1 = strlen(filename) + 1;
- data.ioc_inlbuf2 = (char *)¶m->mdtindex;
- data.ioc_inllen2 = sizeof(param->mdtindex);
+ data.ioc_inlbuf2 = (char *)¶m->fp_mdt_index;
+ data.ioc_inllen2 = sizeof(param->fp_mdt_index);
ret = obd_ioctl_pack(&data, &rawbuf, sizeof(raw));
if (ret != 0) {
llapi_error(LLAPI_MSG_ERROR, ret,
goto out;
}
+migrate:
ret = ioctl(fd, LL_IOC_MIGRATE, rawbuf);
if (ret != 0) {
+ if (errno == EBUSY && !retry) {
+ /* because migrate may not be able to lock all involved
+ * objects in order, for some of them it try lock, while
+ * there may be conflicting COS locks and cause migrate
+ * fail with EBUSY, hope a sync() could cause
+ * transaction commit and release these COS locks. */
+ sync();
+ retry = true;
+ goto migrate;
+ }
ret = -errno;
- fprintf(stderr, "%s migrate failed %d\n", path, ret);
+ fprintf(stderr, "%s migrate failed: %s (%d)\n",
+ path, strerror(-ret), ret);
goto out;
- } else if (param->verbose & VERBOSE_DETAIL) {
- fprintf(stdout, "migrate %s to MDT%d\n", path, param->mdtindex);
+ } else if (param->fp_verbose & VERBOSE_DETAIL) {
+ fprintf(stdout, "migrate %s to MDT%d\n",
+ path, param->fp_mdt_index);
}
out:
* on the client side, and re-open to get the
* new directory handle */
*dirp = opendir(path);
- if (dirp == NULL) {
+ if (*dirp == NULL) {
ret = -errno;
llapi_error(LLAPI_MSG_ERROR, ret,
"%s: Failed to open '%s'", __func__, path);
- return ret;
}
}
if (parent == NULL)
- closedir(dir);
+ closedir(tmp_parent);
+
+ free(path_copy);
return ret;
}
+int llapi_migrate_mdt(char *path, struct find_param *param)
+{
+ return param_callback(path, cb_migrate_mdt_init, cb_common_fini, param);
+}
+
int llapi_mv(char *path, struct find_param *param)
{
- return param_callback(path, cb_mv_init, cb_common_fini, param);
+#if LUSTRE_VERSION_CODE > OBD_OCD_VERSION(2, 9, 59, 0)
+ static bool printed;
+
+ if (!printed) {
+ llapi_error(LLAPI_MSG_ERROR, -ESTALE,
+ "llapi_mv() is deprecated, use llapi_migrate_mdt()\n");
+ printed = true;
+ }
+#endif
+ return llapi_migrate_mdt(path, param);
}
int llapi_find(char *path, struct find_param *param)
static int cb_get_mdt_index(char *path, DIR *parent, DIR **dirp, void *data,
struct dirent64 *de)
{
- struct find_param *param = (struct find_param *)data;
+ struct find_param *param = (struct find_param *)data;
DIR *d = dirp == NULL ? NULL : *dirp;
- int ret = 0;
- int mdtidx;
+ int ret;
+ int mdtidx;
- LASSERT(parent != NULL || d != NULL);
+ if (parent == NULL && d == NULL)
+ return -EINVAL;
- if (d) {
- ret = llapi_file_fget_mdtidx(dirfd(d), &mdtidx);
- } else if (parent) {
- int fd;
+ if (d != NULL) {
+ ret = llapi_file_fget_mdtidx(dirfd(d), &mdtidx);
+ } else /* if (parent) */ {
+ int fd;
- fd = open(path, O_RDONLY);
- if (fd > 0) {
- ret = llapi_file_fget_mdtidx(fd, &mdtidx);
- close(fd);
- } else {
- ret = -errno;
- }
- }
+ fd = open(path, O_RDONLY | O_NOCTTY);
+ if (fd > 0) {
+ ret = llapi_file_fget_mdtidx(fd, &mdtidx);
+ close(fd);
+ } else {
+ ret = -errno;
+ }
+ }
- if (ret) {
- if (ret == -ENODATA) {
- if (!param->obduuid)
- llapi_printf(LLAPI_MSG_NORMAL,
- "%s has no stripe info\n", path);
- goto out;
- } else if (ret == -ENOENT) {
- llapi_error(LLAPI_MSG_WARN, ret,
- "warning: %s: %s does not exist",
- __func__, path);
- goto out;
- } else if (ret == -ENOTTY) {
- llapi_error(LLAPI_MSG_ERROR, ret,
- "%s: '%s' not on a Lustre fs?",
- __func__, path);
- } else {
- llapi_error(LLAPI_MSG_ERROR, ret,
- "error: %s: LL_IOC_GET_MDTIDX failed for %s",
- __func__, path);
- }
- return ret;
- }
+ if (ret != 0) {
+ if (ret == -ENODATA) {
+ if (!param->fp_obd_uuid)
+ llapi_printf(LLAPI_MSG_NORMAL,
+ "'%s' has no stripe info\n", path);
+ goto out;
+ } else if (ret == -ENOENT) {
+ llapi_error(LLAPI_MSG_WARN, ret,
+ "warning: %s: '%s' does not exist",
+ __func__, path);
+ goto out;
+ } else if (ret == -ENOTTY) {
+ llapi_error(LLAPI_MSG_ERROR, ret,
+ "%s: '%s' not on a Lustre fs",
+ __func__, path);
+ } else {
+ llapi_error(LLAPI_MSG_ERROR, ret,
+ "error: %s: '%s' failed get_mdtidx",
+ __func__, path);
+ }
+ return ret;
+ }
- /* The 'LASSERT(parent != NULL || d != NULL);' guarantees
- * that either 'd' or 'parent' is not null.
- * So in all cases llapi_file_fget_mdtidx() is called,
- * thus initializing 'mdtidx'. */
- if (param->quiet || !(param->verbose & VERBOSE_DETAIL))
- /* coverity[uninit_use_in_call] */
- llapi_printf(LLAPI_MSG_NORMAL, "%d\n", mdtidx);
- else
- /* coverity[uninit_use_in_call] */
- llapi_printf(LLAPI_MSG_NORMAL, "%s\nmdt_index:\t%d\n",
- path, mdtidx);
+ if (param->fp_quiet || !(param->fp_verbose & VERBOSE_DETAIL))
+ llapi_printf(LLAPI_MSG_NORMAL, "%d\n", mdtidx);
+ else
+ llapi_printf(LLAPI_MSG_NORMAL, "%s\nmdt_index:\t%d\n",
+ path, mdtidx);
out:
- /* Do not get down anymore? */
+ /* Do not go down anymore? */
if (param->fp_depth == param->fp_max_depth)
return 1;
DIR *d = dirp == NULL ? NULL : *dirp;
int ret = 0;
- LASSERT(parent != NULL || d != NULL);
+ if (parent == NULL && d == NULL)
+ return -EINVAL;
- if (param->obduuid) {
- param->quiet = 1;
- ret = setup_obd_uuid(d ? d : parent, path, param);
- if (ret)
- return ret;
- }
+ if (param->fp_obd_uuid) {
+ param->fp_quiet = 1;
+ ret = setup_obd_uuid(d ? dirfd(d) : dirfd(parent), path, param);
+ if (ret)
+ return ret;
+ }
if (d) {
- if (param->get_lmv || param->get_default_lmv) {
+ if (param->fp_get_lmv || param->fp_get_default_lmv) {
ret = cb_get_dirstripe(path, d, param);
} else {
ret = ioctl(dirfd(d), LL_IOC_LOV_GETSTRIPE,
- (void *)¶m->lmd->lmd_lmm);
+ (void *)¶m->fp_lmd->lmd_lmm);
}
- } else if (parent && !param->get_lmv && !param->get_default_lmv) {
+ } else if (parent && !param->fp_get_lmv && !param->fp_get_default_lmv) {
char *fname = strrchr(path, '/');
fname = (fname == NULL ? path : fname + 1);
- strlcpy((char *)¶m->lmd->lmd_lmm, fname, param->lumlen);
+ strlcpy((char *)¶m->fp_lmd->lmd_lmm, fname,
+ param->fp_lum_size);
ret = ioctl(dirfd(parent), IOC_MDC_GETFILESTRIPE,
- (void *)¶m->lmd->lmd_lmm);
+ (void *)¶m->fp_lmd->lmd_lmm);
} else {
return 0;
}
* a check later on in the code path.
* The object_seq needs to be set for the "(Default)"
* prefix to be displayed. */
- if (param->get_default_lmv) {
+ if (param->fp_get_default_lmv) {
struct lmv_user_md *lum = param->fp_lmv_md;
lum->lum_magic = LMV_USER_MAGIC;
lum->lum_stripe_count = 0;
lum->lum_stripe_offset = -1;
goto dump;
- } else if (param->get_lmv) {
+ } else if (param->fp_get_lmv) {
struct lmv_user_md *lum = param->fp_lmv_md;
int mdtidx;
lum->lum_stripe_offset = mdtidx;
goto dump;
} else {
- struct lov_user_md *lmm = ¶m->lmd->lmd_lmm;
+ struct lov_user_md *lmm =
+ ¶m->fp_lmd->lmd_lmm;
+
lmm->lmm_magic = LOV_USER_MAGIC_V1;
- if (!param->raw)
+ if (!param->fp_raw)
ostid_set_seq(&lmm->lmm_oi,
FID_SEQ_LOV_DEFAULT);
lmm->lmm_stripe_count = 0;
goto dump;
}
} else if (errno == ENODATA && parent != NULL) {
- if (!param->obduuid && !param->mdtuuid)
+ if (!param->fp_obd_uuid && !param->fp_mdt_uuid)
llapi_printf(LLAPI_MSG_NORMAL,
"%s has no stripe info\n", path);
goto out;
}
dump:
- if (!(param->verbose & VERBOSE_MDTINDEX))
+ if (!(param->fp_verbose & VERBOSE_MDTINDEX))
llapi_lov_dump_user_lmm(param, path, d ? 1 : 0);
out:
int llapi_getstripe(char *path, struct find_param *param)
{
- return param_callback(path, (param->verbose & VERBOSE_MDTINDEX) ?
+ return param_callback(path, (param->fp_verbose & VERBOSE_MDTINDEX) ?
cb_get_mdt_index : cb_getstripe,
cb_common_fini, param);
}
-int llapi_obd_statfs(char *path, __u32 type, __u32 index,
- struct obd_statfs *stat_buf,
- struct obd_uuid *uuid_buf)
+int llapi_obd_fstatfs(int fd, __u32 type, __u32 index,
+ struct obd_statfs *stat_buf, struct obd_uuid *uuid_buf)
{
- int fd;
char raw[OBD_MAX_IOCTL_BUFFER] = {'\0'};
char *rawbuf = raw;
struct obd_ioctl_data data = { 0 };
return rc;
}
- fd = open(path, O_RDONLY);
- if (errno == EISDIR)
- fd = open(path, O_DIRECTORY | O_RDONLY);
+ rc = ioctl(fd, IOC_OBD_STATFS, (void *)rawbuf);
+
+ return rc < 0 ? -errno : 0;
+}
+int llapi_obd_statfs(char *path, __u32 type, __u32 index,
+ struct obd_statfs *stat_buf, struct obd_uuid *uuid_buf)
+{
+ int fd;
+ int rc;
+
+ fd = open(path, O_RDONLY);
if (fd < 0) {
- rc = errno ? -errno : -EBADF;
+ rc = -errno;
llapi_error(LLAPI_MSG_ERROR, rc, "error: %s: opening '%s'",
__func__, path);
/* If we can't even open a file on the filesystem (e.g. with
* -ESHUTDOWN), force caller to exit or it will loop forever. */
return -ENODEV;
}
- rc = ioctl(fd, IOC_OBD_STATFS, (void *)rawbuf);
- if (rc)
- rc = errno ? -errno : -EINVAL;
+
+ rc = llapi_obd_fstatfs(fd, type, index, stat_buf, uuid_buf);
close(fd);
+
return rc;
}
int llapi_ping(char *obd_type, char *obd_name)
{
- char path[MAX_STRING_SIZE];
- char buf[1];
- int rc, fd;
+ glob_t path;
+ char buf[1];
+ int rc, fd;
- snprintf(path, MAX_STRING_SIZE, "/proc/fs/lustre/%s/%s/ping",
- obd_type, obd_name);
+ rc = cfs_get_param_paths(&path, "%s/%s/ping",
+ obd_type, obd_name);
+ if (rc != 0)
+ return -errno;
- fd = open(path, O_WRONLY);
- if (fd < 0) {
- rc = -errno;
- llapi_error(LLAPI_MSG_ERROR, rc, "error opening %s", path);
- return rc;
- }
+ fd = open(path.gl_pathv[0], O_WRONLY);
+ if (fd < 0) {
+ rc = -errno;
+ llapi_error(LLAPI_MSG_ERROR, rc, "error opening %s",
+ path.gl_pathv[0]);
+ goto failed;
+ }
/* The purpose is to send a byte as a ping, whatever this byte is. */
/* coverity[uninit_use_in_call] */
- rc = write(fd, buf, 1);
- if (rc < 0)
- rc = -errno;
- close(fd);
+ rc = write(fd, buf, 1);
+ if (rc < 0)
+ rc = -errno;
+ close(fd);
- if (rc == 1)
- return 0;
- return rc;
+ if (rc == 1)
+ rc = 0;
+failed:
+ cfs_free_param_data(&path);
+ return rc;
}
int llapi_target_iterate(int type_num, char **obd_type,
void *args, llapi_cb_t cb)
{
- char buf[MAX_STRING_SIZE];
- FILE *fp = fopen(DEVICES_LIST, "r");
- int i, rc = 0;
+ char buf[MAX_STRING_SIZE];
+ int i, rc = 0;
+ glob_t param;
+ FILE *fp;
- if (fp == NULL) {
- rc = -errno;
- llapi_error(LLAPI_MSG_ERROR, rc, "error: opening "DEVICES_LIST);
- return rc;
- }
+ rc = cfs_get_param_paths(¶m, "devices");
+ if (rc != 0)
+ return -ENOENT;
+
+ fp = fopen(param.gl_pathv[0], "r");
+ if (fp == NULL) {
+ rc = -errno;
+ llapi_error(LLAPI_MSG_ERROR, rc, "error: opening '%s'",
+ param.gl_pathv[0]);
+ goto free_path;
+ }
while (fgets(buf, sizeof(buf), fp) != NULL) {
char *obd_type_name = NULL;
cb(obd_type_name, obd_name, obd_uuid, args);
}
- }
- fclose(fp);
- return 0;
+ }
+ fclose(fp);
+free_path:
+ cfs_free_param_data(¶m);
+ return 0;
}
static void do_target_check(char *obd_type_name, char *obd_name,
strstr(mnt->mnt_fsname, ":/") != NULL);
}
-int llapi_quotacheck(char *mnt, int check_type)
-{
- DIR *root;
- int rc;
-
- root = opendir(mnt);
- if (!root) {
- rc = -errno;
- llapi_error(LLAPI_MSG_ERROR, rc, "open %s failed", mnt);
- return rc;
- }
-
- rc = ioctl(dirfd(root), OBD_IOC_QUOTACHECK, check_type);
- if (rc < 0)
- rc = -errno;
-
- closedir(root);
- return rc;
-}
-
-int llapi_poll_quotacheck(char *mnt, struct if_quotacheck *qchk)
-{
- DIR *root;
- int poll_intvl = 2;
- int rc;
-
- root = opendir(mnt);
- if (!root) {
- rc = -errno;
- llapi_error(LLAPI_MSG_ERROR, rc, "open %s failed", mnt);
- return rc;
- }
-
- while (1) {
- rc = ioctl(dirfd(root), OBD_IOC_POLL_QUOTACHECK, qchk);
- if (!rc)
- break;
- sleep(poll_intvl);
- if (poll_intvl < 30)
- poll_intvl *= 2;
- }
-
- closedir(root);
- return 0;
-}
-
int llapi_quotactl(char *mnt, struct if_quotactl *qctl)
{
- DIR *root;
- int rc;
-
- root = opendir(mnt);
- if (!root) {
- rc = -errno;
- llapi_error(LLAPI_MSG_ERROR, rc, "open %s failed", mnt);
- return rc;
- }
-
- rc = ioctl(dirfd(root), OBD_IOC_QUOTACTL, qctl);
- if (rc < 0)
- rc = -errno;
-
- closedir(root);
- return rc;
-}
-
-static int cb_quotachown(char *path, DIR *parent, DIR **dirp, void *data,
- struct dirent64 *de)
-{
- struct find_param *param = (struct find_param *)data;
- DIR *d = dirp == NULL ? NULL : *dirp;
- lstat_t *st;
- int rc;
-
- LASSERT(parent != NULL || d != NULL);
-
- rc = get_lmd_info(path, parent, d, param->lmd, param->lumlen);
- if (rc) {
- if (rc == -ENODATA) {
- if (!param->obduuid && !param->quiet)
- llapi_error(LLAPI_MSG_ERROR, -ENODATA,
- "%s has no stripe info", path);
- rc = 0;
- } else if (rc == -ENOENT) {
- rc = 0;
- }
- return rc;
- }
-
- st = ¶m->lmd->lmd_st;
-
- /* libc chown() will do extra check, and if the real owner is
- * the same as the ones to set, it won't fall into kernel, so
- * invoke syscall directly. */
- rc = syscall(SYS_chown, path, -1, -1);
- if (rc)
- llapi_error(LLAPI_MSG_ERROR, errno,
- "error: chown %s", path);
-
- rc = chmod(path, st->st_mode);
- if (rc) {
- rc = -errno;
- llapi_error(LLAPI_MSG_ERROR, rc, "error: chmod %s (%hu)",
- path, st->st_mode);
- }
-
- return rc;
-}
-
-int llapi_quotachown(char *path, int flag)
-{
- struct find_param param;
-
- memset(¶m, 0, sizeof(param));
- param.recursive = 1;
- param.verbose = 0;
- param.quiet = 1;
-
- return param_callback(path, cb_quotachown, NULL, ¶m);
-}
-
-#include <pwd.h>
-#include <grp.h>
-#include <mntent.h>
-#include <sys/wait.h>
-#include <errno.h>
-#include <ctype.h>
-
-static int rmtacl_notify(int ops)
-{
- FILE *fp;
- struct mntent *mnt;
- int found = 0, fd = 0, rc = 0;
-
- fp = setmntent(MOUNTED, "r");
- if (fp == NULL) {
- rc = -errno;
- llapi_error(LLAPI_MSG_ERROR, rc,
- "error setmntent(%s)", MOUNTED);
- return rc;
- }
-
- while (1) {
- mnt = getmntent(fp);
- if (!mnt)
- break;
-
- if (!llapi_is_lustre_mnt(mnt))
- continue;
-
- fd = open(mnt->mnt_dir, O_RDONLY | O_DIRECTORY);
- if (fd < 0) {
- rc = -errno;
- llapi_error(LLAPI_MSG_ERROR, rc,
- "Can't open '%s'", mnt->mnt_dir);
- goto out;
- }
-
- rc = ioctl(fd, LL_IOC_RMTACL, ops);
- close(fd);
- if (rc < 0) {
- rc = -errno;
- llapi_error(LLAPI_MSG_ERROR, rc,
- "ioctl RMTACL on '%s' err %d",
- mnt->mnt_dir, rc);
- goto out;
- }
-
- found++;
- }
-
-out:
- endmntent(fp);
- return ((rc != 0) ? rc : found);
-}
-
-static char *next_token(char *p, int div)
-{
- if (p == NULL)
- return NULL;
-
- if (div)
- while (*p && *p != ':' && !isspace(*p))
- p++;
- else
- while (*p == ':' || isspace(*p))
- p++;
-
- return *p ? p : NULL;
-}
-
-static int rmtacl_name2id(char *name, int is_user)
-{
- if (is_user) {
- struct passwd *pw;
-
- pw = getpwnam(name);
- if (pw == NULL)
- return INVALID_ID;
- else
- return (int)(pw->pw_uid);
- } else {
- struct group *gr;
-
- gr = getgrnam(name);
- if (gr == NULL)
- return INVALID_ID;
- else
- return (int)(gr->gr_gid);
- }
-}
-
-static int isodigit(int c)
-{
- return (c >= '0' && c <= '7') ? 1 : 0;
-}
-
-/*
- * Whether the name is just digits string (uid/gid) already or not.
- * Return value:
- * 1: str is id
- * 0: str is not id
- */
-static int str_is_id(char *str)
-{
- if (str == NULL)
- return 0;
-
- if (*str == '0') {
- str++;
- if (*str == 'x' || *str == 'X') { /* for Hex. */
- if (!isxdigit(*(++str)))
- return 0;
-
- while (isxdigit(*(++str)));
- } else if (isodigit(*str)) { /* for Oct. */
- while (isodigit(*(++str)));
- }
- } else if (isdigit(*str)) { /* for Dec. */
- while (isdigit(*(++str)));
- }
-
- return (*str == 0) ? 1 : 0;
-}
-
-typedef struct {
- char *name;
- int length;
- int is_user;
- int next_token;
-} rmtacl_name_t;
-
-#define RMTACL_OPTNAME(name) name, sizeof(name) - 1
-
-static rmtacl_name_t rmtacl_namelist[] = {
- { RMTACL_OPTNAME("user:"), 1, 0 },
- { RMTACL_OPTNAME("group:"), 0, 0 },
- { RMTACL_OPTNAME("default:user:"), 1, 0 },
- { RMTACL_OPTNAME("default:group:"), 0, 0 },
- /* for --tabular option */
- { RMTACL_OPTNAME("user"), 1, 1 },
- { RMTACL_OPTNAME("group"), 0, 1 },
- { 0 }
-};
-
-static int rgetfacl_output(char *str)
-{
- char *start = NULL, *end = NULL;
- int is_user = 0, n, id;
- char c;
- rmtacl_name_t *rn;
-
- if (str == NULL)
- return -1;
-
- for (rn = rmtacl_namelist; rn->name; rn++) {
- if(strncmp(str, rn->name, rn->length) == 0) {
- if (!rn->next_token)
- start = str + rn->length;
- else
- start = next_token(str + rn->length, 0);
- is_user = rn->is_user;
- break;
- }
- }
-
- end = next_token(start, 1);
- if (end == NULL || start == end) {
- n = printf("%s", str);
- return n;
- }
-
- c = *end;
- *end = 0;
- id = rmtacl_name2id(start, is_user);
- if (id == INVALID_ID) {
- if (str_is_id(start)) {
- *end = c;
- n = printf("%s", str);
- } else
- return -1;
- } else if ((id == NOBODY_UID && is_user) ||
- (id == NOBODY_GID && !is_user)) {
- *end = c;
- n = printf("%s", str);
- } else {
- *end = c;
- *start = 0;
- n = printf("%s%d%s", str, id, end);
- }
- return n;
-}
-
-static int child_status(int status)
-{
- return WIFEXITED(status) ? WEXITSTATUS(status) : -1;
-}
-
-static int do_rmtacl(int argc, char *argv[], int ops, int (output_func)(char *))
-{
- pid_t pid = 0;
- int fd[2], status, rc;
- FILE *fp;
- char buf[PIPE_BUF];
-
- if (output_func) {
- if (pipe(fd) < 0) {
- rc = -errno;
- llapi_error(LLAPI_MSG_ERROR, rc, "Can't create pipe");
- return rc;
- }
-
- pid = fork();
- if (pid < 0) {
- rc = -errno;
- llapi_error(LLAPI_MSG_ERROR, rc, "Can't fork");
- close(fd[0]);
- close(fd[1]);
- return rc;
- } else if (!pid) {
- /* child process redirects its output. */
- close(fd[0]);
- close(1);
- if (dup2(fd[1], 1) < 0) {
- rc = -errno;
- llapi_error(LLAPI_MSG_ERROR, rc,
- "Can't dup2 %d", fd[1]);
- close(fd[1]);
- return rc;
- }
- } else {
- close(fd[1]);
- }
- }
-
- if (!pid) {
- status = rmtacl_notify(ops);
- if (status < 0)
- return -errno;
-
- exit(execvp(argv[0], argv));
- }
-
- /* the following is parent process */
- fp = fdopen(fd[0], "r");
- if (fp == NULL) {
- rc = -errno;
- llapi_error(LLAPI_MSG_ERROR, rc, "fdopen %d failed", fd[0]);
- kill(pid, SIGKILL);
- close(fd[0]);
- return rc;
- }
-
- while (fgets(buf, PIPE_BUF, fp) != NULL) {
- if (output_func(buf) < 0)
- fprintf(stderr, "WARNING: unexpected error!\n[%s]\n",
- buf);
- }
- fclose(fp);
- close(fd[0]);
-
- if (waitpid(pid, &status, 0) < 0) {
- rc = -errno;
- llapi_error(LLAPI_MSG_ERROR, rc, "waitpid %d failed", pid);
- return rc;
- }
-
- return child_status(status);
-}
-
-int llapi_lsetfacl(int argc, char *argv[])
-{
- return do_rmtacl(argc, argv, RMT_LSETFACL, NULL);
-}
-
-int llapi_lgetfacl(int argc, char *argv[])
-{
- return do_rmtacl(argc, argv, RMT_LGETFACL, NULL);
-}
-
-int llapi_rsetfacl(int argc, char *argv[])
-{
- return do_rmtacl(argc, argv, RMT_RSETFACL, NULL);
-}
-
-int llapi_rgetfacl(int argc, char *argv[])
-{
- return do_rmtacl(argc, argv, RMT_RGETFACL, rgetfacl_output);
-}
-
-int llapi_cp(int argc, char *argv[])
-{
- int rc;
-
- rc = rmtacl_notify(RMT_RSETFACL);
- if (rc < 0)
- return rc;
+ char fsname[PATH_MAX + 1];
+ int root;
+ int rc;
- exit(execvp(argv[0], argv));
-}
+ rc = llapi_search_fsname(mnt, fsname);
+ if (rc) {
+ llapi_err_noerrno(LLAPI_MSG_ERROR,
+ "'%s' isn't on Lustre filesystem", mnt);
+ return rc;
+ }
-int llapi_ls(int argc, char *argv[])
-{
- int rc;
+ root = open(mnt, O_RDONLY | O_DIRECTORY);
+ if (root < 0) {
+ rc = -errno;
+ llapi_error(LLAPI_MSG_ERROR, rc, "open %s failed", mnt);
+ return rc;
+ }
- rc = rmtacl_notify(RMT_LGETFACL);
- if (rc < 0)
- return rc;
+ rc = ioctl(root, OBD_IOC_QUOTACTL, qctl);
+ if (rc < 0)
+ rc = -errno;
- exit(execvp(argv[0], argv));
+ close(root);
+ return rc;
}
/* Print mdtname 'name' into 'buf' using 'format'. Add -MDT0000 if needed.
rc = -errno;
else
rc = 0;
- if (rc && want_error)
- llapi_error(LLAPI_MSG_ERROR, rc, "ioctl %d err %d", opc, rc);
-
close(fd);
return rc;
}
#define CHANGELOG_PRIV_MAGIC 0xCA8E1080
struct changelog_private {
- int magic;
- int flags;
- lustre_kernelcomm kuc;
+ int magic;
+ enum changelog_send_flag flags;
+ struct lustre_kernelcomm kuc;
};
/** Start reading from a changelog
* @param startrec Report changes beginning with this record number
* (just call llapi_changelog_fini when done; don't need an endrec)
*/
-int llapi_changelog_start(void **priv, int flags, const char *device,
- long long startrec)
+int llapi_changelog_start(void **priv, enum changelog_send_flag flags,
+ const char *device, long long startrec)
{
- struct changelog_private *cp;
- int rc;
+ struct changelog_private *cp;
+ static bool warned;
+ int rc;
- /* Set up the receiver control struct */
- cp = calloc(1, sizeof(*cp));
- if (cp == NULL)
- return -ENOMEM;
+ /* Set up the receiver control struct */
+ cp = calloc(1, sizeof(*cp));
+ if (cp == NULL)
+ return -ENOMEM;
- cp->magic = CHANGELOG_PRIV_MAGIC;
- cp->flags = flags;
+ cp->magic = CHANGELOG_PRIV_MAGIC;
+ cp->flags = flags;
- /* Set up the receiver */
+ /* Set up the receiver */
rc = libcfs_ukuc_start(&cp->kuc, 0 /* no group registration */, 0);
- if (rc < 0)
- goto out_free;
+ if (rc < 0)
+ goto out_free;
- *priv = cp;
+ *priv = cp;
- /* Tell the kernel to start sending */
- rc = changelog_ioctl(device, OBD_IOC_CHANGELOG_SEND, cp->kuc.lk_wfd,
- startrec, flags);
- /* Only the kernel reference keeps the write side open */
- close(cp->kuc.lk_wfd);
- cp->kuc.lk_wfd = LK_NOFD;
- if (rc < 0) {
- /* frees and clears priv */
- llapi_changelog_fini(priv);
- return rc;
- }
+ /* CHANGELOG_FLAG_JOBID will eventually become mandatory. Display a
+ * warning if it's missing. */
+ if (!(flags & CHANGELOG_FLAG_JOBID) && !warned) {
+ llapi_err_noerrno(LLAPI_MSG_WARN, "warning: %s() called "
+ "w/o CHANGELOG_FLAG_JOBID", __func__);
+ warned = true;
+ }
- return 0;
+ /* Tell the kernel to start sending */
+ rc = changelog_ioctl(device, OBD_IOC_CHANGELOG_SEND, cp->kuc.lk_wfd,
+ startrec, flags);
+ /* Only the kernel reference keeps the write side open */
+ close(cp->kuc.lk_wfd);
+ cp->kuc.lk_wfd = LK_NOFD;
+ if (rc < 0) {
+ /* frees and clears priv */
+ llapi_changelog_fini(priv);
+ return rc;
+ }
+
+ return 0;
out_free:
- free(cp);
- return rc;
+ free(cp);
+ return rc;
}
/** Finish reading from a changelog */
return 0;
}
-/** Convert a changelog_rec to changelog_ext_rec, in this way client can treat
- * all records in the format of changelog_ext_rec, this can make record
- * analysis simpler.
+/**
+ * Convert all records to a same format according to the caller's wishes.
+ * Default is CLF_VERSION | CLF_RENAME.
+ * Add CLF_JOBID if explicitely requested.
+ *
+ * \param rec The record to remap. It is expected to be big enough to
+ * properly handle the final format.
+ * \return 1 if anything changed. 0 otherwise.
*/
-static inline int changelog_extend_rec(struct changelog_ext_rec *ext)
-{
- if (!CHANGELOG_REC_EXTENDED(ext)) {
- struct changelog_rec *rec = (struct changelog_rec *)ext;
-
- memmove(ext->cr_name, rec->cr_name, rec->cr_namelen);
- fid_zero(&ext->cr_sfid);
- fid_zero(&ext->cr_spfid);
- return 1;
- }
-
- return 0;
-}
-
/** Read the next changelog entry
* @param priv Opaque private control structure
* @param rech Changelog record handle; record will be allocated here
* <0 error code
* 1 EOF
*/
-int llapi_changelog_recv(void *priv, struct changelog_ext_rec **rech)
+#define DEFAULT_RECORD_FMT (CLF_VERSION | CLF_RENAME)
+int llapi_changelog_recv(void *priv, struct changelog_rec **rech)
{
- struct changelog_private *cp = (struct changelog_private *)priv;
- struct kuc_hdr *kuch;
- int rc = 0;
+ struct changelog_private *cp = (struct changelog_private *)priv;
+ struct kuc_hdr *kuch;
+ enum changelog_rec_flags rec_fmt = DEFAULT_RECORD_FMT;
+ int rc = 0;
if (!cp || (cp->magic != CHANGELOG_PRIV_MAGIC))
return -EINVAL;
if (kuch == NULL)
return -ENOMEM;
+ if (cp->flags & CHANGELOG_FLAG_JOBID)
+ rec_fmt |= CLF_JOBID;
+
repeat:
rc = libcfs_ukuc_msg_get(&cp->kuc, (char *)kuch,
KUC_CHANGELOG_MSG_MAXSIZE,
}
}
- /* Our message is a changelog_ext_rec. Use pointer math to skip
- * kuch_hdr and point directly to the message payload.
- */
- *rech = (struct changelog_ext_rec *)(kuch + 1);
- changelog_extend_rec(*rech);
+ /* Our message is a changelog_rec. Use pointer math to skip
+ * kuch_hdr and point directly to the message payload. */
+ *rech = (struct changelog_rec *)(kuch + 1);
+ changelog_remap_rec(*rech, rec_fmt);
return 0;
}
/** Release the changelog record when done with it. */
-int llapi_changelog_free(struct changelog_ext_rec **rech)
+int llapi_changelog_free(struct changelog_rec **rech)
{
if (*rech) {
/* We allocated memory starting at the kuc_hdr, but passed
}
int llapi_fid2path(const char *device, const char *fidstr, char *buf,
- int buflen, long long *recno, int *linkno)
+ int buflen, long long *recno, int *linkno)
{
- struct lu_fid fid;
- struct getinfo_fid2path *gf;
- int rc;
+ const char *fidstr_orig = fidstr;
+ struct lu_fid fid;
+ struct getinfo_fid2path *gf;
+ int rc;
- while (*fidstr == '[')
- fidstr++;
+ while (*fidstr == '[')
+ fidstr++;
- sscanf(fidstr, SFID, RFID(&fid));
- if (!fid_is_sane(&fid)) {
- llapi_err_noerrno(LLAPI_MSG_ERROR,
- "bad FID format [%s], should be "DFID"\n",
- fidstr, (__u64)1, 2, 0);
- return -EINVAL;
- }
+ sscanf(fidstr, SFID, RFID(&fid));
+ if (!fid_is_sane(&fid)) {
+ llapi_err_noerrno(LLAPI_MSG_ERROR,
+ "bad FID format '%s', should be [seq:oid:ver]"
+ " (e.g. "DFID")\n", fidstr_orig,
+ (unsigned long long)FID_SEQ_NORMAL, 2, 0);
+ return -EINVAL;
+ }
- gf = malloc(sizeof(*gf) + buflen);
- if (gf == NULL)
- return -ENOMEM;
- gf->gf_fid = fid;
- gf->gf_recno = *recno;
- gf->gf_linkno = *linkno;
- gf->gf_pathlen = buflen;
+ gf = malloc(sizeof(*gf) + buflen);
+ if (gf == NULL)
+ return -ENOMEM;
- /* Take path or fsname */
- rc = root_ioctl(device, OBD_IOC_FID2PATH, gf, NULL, 0);
- if (rc) {
- if (rc != -ENOENT)
- llapi_error(LLAPI_MSG_ERROR, rc, "ioctl err %d", rc);
- } else {
- memcpy(buf, gf->gf_path, gf->gf_pathlen);
- if (buf[0] == '\0') { /* ROOT path */
- buf[0] = '/';
- buf[1] = '\0';
- }
- *recno = gf->gf_recno;
- *linkno = gf->gf_linkno;
- }
+ gf->gf_fid = fid;
+ gf->gf_recno = *recno;
+ gf->gf_linkno = *linkno;
+ gf->gf_pathlen = buflen;
- free(gf);
- return rc;
+ /* Take path or fsname */
+ rc = root_ioctl(device, OBD_IOC_FID2PATH, gf, NULL, 0);
+ if (rc)
+ goto out_free;
+
+ memcpy(buf, gf->gf_u.gf_path, gf->gf_pathlen);
+ if (buf[0] == '\0') { /* ROOT path */
+ buf[0] = '/';
+ buf[1] = '\0';
+ }
+ *recno = gf->gf_recno;
+ *linkno = gf->gf_linkno;
+
+out_free:
+ free(gf);
+ return rc;
}
static int fid_from_lma(const char *path, const int fd, lustre_fid *fid)
return rc;
}
-int llapi_get_connect_flags(const char *mnt, __u64 *flags)
+int llapi_fd2parent(int fd, unsigned int linkno, lustre_fid *parent_fid,
+ char *name, size_t name_size)
{
- DIR *root;
- int rc;
+ struct getparent *gp;
+ int rc;
- root = opendir(mnt);
- if (!root) {
- rc = -errno;
- llapi_error(LLAPI_MSG_ERROR, rc, "open %s failed", mnt);
- return rc;
- }
+ gp = malloc(sizeof(*gp) + name_size);
+ if (gp == NULL)
+ return -ENOMEM;
- rc = ioctl(dirfd(root), LL_IOC_GET_CONNECT_FLAGS, flags);
- if (rc < 0) {
- rc = -errno;
- llapi_error(LLAPI_MSG_ERROR, rc,
- "ioctl on %s for getting connect flags failed", mnt);
- }
- closedir(root);
- return rc;
+ gp->gp_linkno = linkno;
+ gp->gp_name_size = name_size;
+
+ rc = ioctl(fd, LL_IOC_GETPARENT, gp);
+ if (rc < 0) {
+ rc = -errno;
+ goto err_free;
+ }
+
+ *parent_fid = gp->gp_fid;
+
+ strncpy(name, gp->gp_name, name_size);
+ name[name_size - 1] = '\0';
+
+err_free:
+ free(gp);
+ return rc;
}
-int llapi_get_version(char *buffer, int buffer_size,
- char **version)
+int llapi_path2parent(const char *path, unsigned int linkno,
+ lustre_fid *parent_fid, char *name, size_t name_size)
{
- int rc;
- int fd;
- struct obd_ioctl_data *data = (struct obd_ioctl_data *)buffer;
+ int fd;
+ int rc;
- fd = open(OBD_DEV_PATH, O_RDONLY);
- if (fd == -1)
- return -errno;
+ fd = open(path, O_RDONLY | O_NONBLOCK | O_NOFOLLOW);
+ if (fd < 0)
+ return -errno;
- memset(buffer, 0, buffer_size);
- data->ioc_version = OBD_IOCTL_VERSION;
- data->ioc_inllen1 = buffer_size - cfs_size_round(sizeof(*data));
- data->ioc_inlbuf1 = buffer + cfs_size_round(sizeof(*data));
- data->ioc_len = obd_ioctl_packlen(data);
+ rc = llapi_fd2parent(fd, linkno, parent_fid, name, name_size);
+ close(fd);
+ return rc;
+}
- rc = ioctl(fd, OBD_GET_VERSION, buffer);
- if (rc == -1) {
- rc = -errno;
- close(fd);
- return rc;
- }
- close(fd);
- *version = data->ioc_bulk;
- return 0;
+int llapi_get_connect_flags(const char *mnt, __u64 *flags)
+{
+ int root;
+ int rc;
+
+ root = open(mnt, O_RDONLY | O_DIRECTORY);
+ if (root < 0) {
+ rc = -errno;
+ llapi_error(LLAPI_MSG_ERROR, rc, "open %s failed", mnt);
+ return rc;
+ }
+
+ rc = ioctl(root, LL_IOC_GET_CONNECT_FLAGS, flags);
+ if (rc < 0) {
+ rc = -errno;
+ llapi_error(LLAPI_MSG_ERROR, rc,
+ "ioctl on %s for getting connect flags failed", mnt);
+ }
+ close(root);
+ return rc;
}
/**
{
char file_path[PATH_MAX];
char filename[PATH_MAX];
+ int saved_errno = errno;
int fd;
- int random;
+ int rnumber;
int rc;
- fd = open("/dev/urandom", O_RDONLY);
- if (fd < 0) {
- llapi_error(LLAPI_MSG_ERROR, errno,
- "Cannot open /dev/urandom");
- return -errno;
- }
- rc = read(fd, &random, sizeof(random));
- close(fd);
- if (rc < sizeof(random)) {
- llapi_error(LLAPI_MSG_ERROR, errno,
- "cannot read %zu bytes from /dev/urandom",
- sizeof(random));
- return -errno;
- }
- if (idx == -1)
- snprintf(filename, sizeof(filename),
- LUSTRE_VOLATILE_HDR"::%.4X", random);
- else
- snprintf(filename, sizeof(filename),
- LUSTRE_VOLATILE_HDR":%.4X:%.4X", idx, random);
+ do {
+ rnumber = random();
+ if (idx == -1)
+ snprintf(filename, sizeof(filename),
+ LUSTRE_VOLATILE_HDR"::%.4X", rnumber);
+ else
+ snprintf(filename, sizeof(filename),
+ LUSTRE_VOLATILE_HDR":%.4X:%.4X", idx, rnumber);
+
+ rc = snprintf(file_path, sizeof(file_path),
+ "%s/%s", directory, filename);
+ if (rc >= sizeof(file_path))
+ return -E2BIG;
- rc = snprintf(file_path, sizeof(file_path),
- "%s/%s", directory, filename);
- if (rc >= sizeof(file_path))
- return -E2BIG;
+ fd = open(file_path,
+ O_RDWR | O_CREAT | O_EXCL | O_NOFOLLOW | open_flags,
+ S_IRUSR | S_IWUSR);
+ } while (fd < 0 && errno == EEXIST);
- fd = open(file_path, O_RDWR | O_CREAT | open_flags, S_IRUSR | S_IWUSR);
if (fd < 0) {
llapi_error(LLAPI_MSG_ERROR, errno,
"Cannot create volatile file '%s' in '%s'",
directory);
return -errno;
}
- /* unlink file in case this wasn't a Lustre filesystem, and the
- * magic volatile filename wasn't handled as intended. The effect
- * is the same. */
- unlink(file_path);
+
+ /* Unlink file in case this wasn't a Lustre filesystem and the
+ * magic volatile filename wasn't handled as intended. The
+ * effect is the same. If volatile open was supported then we
+ * expect unlink() to return -ENOENT. */
+ (void)unlink(file_path);
+
+ /* Since we are returning successfully we restore errno (and
+ * mask out possible EEXIST from open() and ENOENT from
+ * unlink(). */
+ errno = saved_errno;
return fd;
}
/**
* Swap the layouts between 2 file descriptors
- * the 2 files must be open in write
+ * the 2 files must be open for writing
* first fd received the ioctl, second fd is passed as arg
* this is assymetric but avoid use of root path for ioctl
*/
-int llapi_fswap_layouts(int fd1, int fd2, __u64 dv1, __u64 dv2, __u64 flags)
-{
- struct lustre_swap_layouts lsl;
- int rc;
-
- srandom(time(NULL));
+int llapi_fswap_layouts_grouplock(int fd1, int fd2, __u64 dv1, __u64 dv2,
+ int gid, __u64 flags)
+{
+ struct lustre_swap_layouts lsl;
+ struct stat st1;
+ struct stat st2;
+ int rc;
+
+ if (flags & (SWAP_LAYOUTS_KEEP_ATIME | SWAP_LAYOUTS_KEEP_MTIME)) {
+ rc = fstat(fd1, &st1);
+ if (rc < 0)
+ return -errno;
+
+ rc = fstat(fd2, &st2);
+ if (rc < 0)
+ return -errno;
+ }
lsl.sl_fd = fd2;
lsl.sl_flags = flags;
- lsl.sl_gid = random();
+ lsl.sl_gid = gid;
lsl.sl_dv1 = dv1;
lsl.sl_dv2 = dv2;
rc = ioctl(fd1, LL_IOC_LOV_SWAP_LAYOUTS, &lsl);
- if (rc)
- rc = -errno;
- return rc;
+ if (rc < 0)
+ return -errno;
+
+ if (flags & (SWAP_LAYOUTS_KEEP_ATIME | SWAP_LAYOUTS_KEEP_MTIME)) {
+ struct timeval tv1[2];
+ struct timeval tv2[2];
+
+ memset(tv1, 0, sizeof(tv1));
+ memset(tv2, 0, sizeof(tv2));
+
+ if (flags & SWAP_LAYOUTS_KEEP_ATIME) {
+ tv1[0].tv_sec = st1.st_atime;
+ tv2[0].tv_sec = st2.st_atime;
+ } else {
+ tv1[0].tv_sec = st2.st_atime;
+ tv2[0].tv_sec = st1.st_atime;
+ }
+
+ if (flags & SWAP_LAYOUTS_KEEP_MTIME) {
+ tv1[1].tv_sec = st1.st_mtime;
+ tv2[1].tv_sec = st2.st_mtime;
+ } else {
+ tv1[1].tv_sec = st2.st_mtime;
+ tv2[1].tv_sec = st1.st_mtime;
+ }
+
+ rc = futimes(fd1, tv1);
+ if (rc < 0)
+ return -errno;
+
+ rc = futimes(fd2, tv2);
+ if (rc < 0)
+ return -errno;
+ }
+
+ return 0;
+}
+
+int llapi_fswap_layouts(int fd1, int fd2, __u64 dv1, __u64 dv2, __u64 flags)
+{
+ int rc;
+ int grp_id;
+
+ do
+ grp_id = random();
+ while (grp_id == 0);
+
+ rc = llapi_fswap_layouts_grouplock(fd1, fd2, dv1, dv2, grp_id, flags);
+ if (rc < 0)
+ return rc;
+
+ return 0;
}
/**
snprintf(path, sizeof(path), "%s/.lustre/fid/"DFID, mntdir, PFID(fid));
return open(path, flags);
}
+
+/**
+ * Take group lock.
+ *
+ * \param fd File to lock.
+ * \param gid Group Identifier.
+ *
+ * \retval 0 on success.
+ * \retval -errno on failure.
+ */
+int llapi_group_lock(int fd, int gid)
+{
+ int rc;
+
+ rc = ioctl(fd, LL_IOC_GROUP_LOCK, gid);
+ if (rc < 0) {
+ rc = -errno;
+ llapi_error(LLAPI_MSG_ERROR, rc, "cannot get group lock");
+ }
+ return rc;
+}
+
+/**
+ * Put group lock.
+ *
+ * \param fd File to unlock.
+ * \param gid Group Identifier.
+ *
+ * \retval 0 on success.
+ * \retval -errno on failure.
+ */
+int llapi_group_unlock(int fd, int gid)
+{
+ int rc;
+
+ rc = ioctl(fd, LL_IOC_GROUP_UNLOCK, gid);
+ if (rc < 0) {
+ rc = -errno;
+ llapi_error(LLAPI_MSG_ERROR, rc, "cannot put group lock");
+ }
+ return rc;
+}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff