*/
/*
* This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
*
* lustre/utils/lfs.c
*
" [[!] --mirror-count|-N [+-]<n>]\n"
" [[!] --mirror-state <[^]state>]\n"
" [[!] --mdt-count|-T [+-]<stripes>]\n"
- " [[!] --mdt-hash|-H <hashtype>\n"
+ " [[!] --mdt-hash|-H <[^][blm],[^]fnv_1a_64,all_char,crush,...>\n"
" [[!] --mdt-index|-m <uuid|index,...>]\n"
"\t !: used before an option indicates 'NOT' requested attribute\n"
"\t -: used before a value indicates less than requested value\n"
"\t +: used before a value indicates more than requested value\n"
- "\thashtype: hash type of the striped directory.\n"
- "\t fnv_1a_64 FNV-1a hash algorithm\n"
- "\t all_char sum of characters % MDT_COUNT\n"},
+ "\t ^: used before a flag indicates to exclude it\n"},
{"check", lfs_check, 0,
"Display the status of MGTs, MDTs or OSTs (as specified in the command)\n"
"or all the servers (MGTs, MDTs and OSTs).\n"
return rc;
}
+static int mdthash_input(char *string, __u32 *inflags,
+ __u32 *exflags, __u32 *type)
+{
+ char *name;
+ struct mhf_list {
+ char *name;
+ __u32 flag;
+ } mhflist[] = {
+ {"migrating", LMV_HASH_FLAG_MIGRATION},
+ {"badtype", LMV_HASH_FLAG_BAD_TYPE},
+ {"lostlmv", LMV_HASH_FLAG_LOST_LMV},
+ };
+
+ if (string == NULL)
+ return -EINVAL;
+
+ *inflags = 0;
+ *exflags = 0;
+ *type = 0;
+ for (name = strtok(string, ","); name; name = strtok(NULL, ",")) {
+ bool found = false;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(mhflist); i++) {
+ if (strcmp(name, mhflist[i].name) == 0 ||
+ name[0] == mhflist[i].name[0]) {
+ *inflags |= mhflist[i].flag;
+ found = true;
+ } else if (name[0] == '^' &&
+ (strcmp(name + 1, mhflist[i].name) == 0 ||
+ name[1] == mhflist[i].name[0])) {
+ *exflags |= mhflist[i].flag;
+ found = true;
+ }
+ }
+ if (!found) {
+ i = check_hashtype(name);
+ if (i > 0) {
+ *type |= 1 << i;
+ continue;
+ }
+ llapi_printf(LLAPI_MSG_ERROR,
+ "%s: invalid mdt_hash value '%s'\n",
+ progname, name);
+ return -EINVAL;
+ }
+ }
+
+ /* don't allow to include and exclude the same flag */
+ if (*inflags & *exflags) {
+ llapi_printf(LLAPI_MSG_ERROR,
+ "%s: include and exclude same flag '%s'\n",
+ progname, string);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
static int mirror_str2state(char *string, __u16 *state, __u16 *neg_state)
{
if (!string)
__u32 mirror_id;
int mdt_index;
int fd, fdv;
+ bool purge = true; /* delete mirror by setting fdv=fd */
int rc;
+ if (victim_file && (strcmp(fname, victim_file) == 0)) {
+ fprintf(stderr,
+ "error %s: the source file '%s' and -f file are the same\n",
+ progname, fname);
+ return -EINVAL;
+ }
+
/* check fname contains mirror with mirror_id/comp_id */
layout = llapi_layout_get_by_path(fname, 0);
if (!layout) {
goto close_fd;
}
+again:
if (!victim_file) {
/* use a temp file to store the splitted layout */
if (mflags & MF_DESTROY) {
goto close_fd;
}
- fdv = llapi_create_volatile_idx(parent, mdt_index,
- O_LOV_DELAY_CREATE);
+ if (purge) {
+ /* don't use volatile file for mirror destroy */
+ fdv = fd;
+ } else {
+ /**
+ * try the old way to delete mirror using
+ * volatile file.
+ */
+ fdv = llapi_create_volatile_idx(parent,
+ mdt_index, O_LOV_DELAY_CREATE);
+ }
} else {
snprintf(victim, sizeof(victim), "%s.mirror~%u",
fname, mirror_id);
data->lil_ids[1] = mirror_id;
rc = llapi_lease_set(fd, data);
if (rc <= 0) {
+ if (rc == -EINVAL && purge) {
+ /* could be old MDS which prohibit fd==fdv */
+ purge = false;
+ goto again;
+
+ }
if (rc == 0) /* lost lease lock */
rc = -EBUSY;
fprintf(stderr,
free(data);
close_victim:
- close(fdv);
+ if (!purge)
+ close(fdv);
close_fd:
close(fd);
free_layout:
comp_id = mirror_id;
else
mirror_flags |= MF_COMP_ID;
+ if (has_m_file && !strcmp(fname, mirror_list->m_file)) {
+ fprintf(stderr,
+ "%s: the file specified by -f cannot be same as the source file '%s'\n",
+ progname, fname);
+ goto usage_error;
+ }
result = mirror_split(fname, comp_id, lsa.lsa_pool_name,
mirror_flags,
has_m_file ? mirror_list->m_file :
param.fp_check_gid = 1;
break;
case 'H':
- param.fp_hash_type = check_hashtype(optarg);
- if (param.fp_hash_type == 0) {
- fprintf(stderr, "error: bad hash_type '%s'\n",
- optarg);
+ rc = mdthash_input(optarg, ¶m.fp_hash_inflags,
+ ¶m.fp_hash_exflags,
+ ¶m.fp_hash_type);
+ if (rc) {
ret = -1;
goto err;
}
- param.fp_check_hash_type = 1;
+ if (param.fp_hash_inflags || param.fp_hash_exflags)
+ param.fp_check_hash_flag = 1;
param.fp_exclude_hash_type = !!neg_opt;
break;
case 'l':