int compare(struct obd_uuid *puuid, struct lov_user_md *lum_dir,
struct lov_user_md *lum_file1, struct lov_user_md *lum_file2)
{
int stripe_count = 0, min_stripe_count = 0, def_stripe_count = 1;
int stripe_size = 0;
int stripe_offset = -1;
int ost_count;
char buf[128];
glob_t path;
int i;
if (cfs_get_param_paths(&path, "lov/%s/stripecount", puuid->uuid) != 0)
return 2;
if (read_proc_entry(path.gl_pathv[0], buf, sizeof(buf)) < 0) {
cfs_free_param_data(&path);
return 5;
}
cfs_free_param_data(&path);
def_stripe_count = (short)atoi(buf);
if (cfs_get_param_paths(&path, "lov/%s/numobd", puuid->uuid) != 0)
return 2;
if (read_proc_entry(path.gl_pathv[0], buf, sizeof(buf)) < 0) {
cfs_free_param_data(&path);
return 6;
}
cfs_free_param_data(&path);
ost_count = atoi(buf);
if (lum_dir == NULL) {
stripe_count = def_stripe_count;
min_stripe_count = -1;
} else {
stripe_count = (signed short)lum_dir->lmm_stripe_count;
printf("dir stripe %d, ", stripe_count);
min_stripe_count = 1;
}
printf("default stripe %d, ost count %d\n",
def_stripe_count, ost_count);
if (stripe_count == 0) {
min_stripe_count = -1;
stripe_count = 1;
}
stripe_count = (stripe_count > 0 && stripe_count <= ost_count) ?
stripe_count : ost_count;
min_stripe_count = min_stripe_count > 0 ? stripe_count :
((stripe_count + 1) / 2);
if (lum_file1->lmm_stripe_count != stripe_count ||
lum_file1->lmm_stripe_count < min_stripe_count) {
llapi_err_noerrno(LLAPI_MSG_ERROR,
"file1 stripe count %d != dir %d\n",
lum_file1->lmm_stripe_count, stripe_count);
return 7;
}
if (lum_file1->lmm_stripe_count < stripe_count)
llapi_err_noerrno(LLAPI_MSG_WARN,
"warning: file1 used fewer stripes"
" %d < dir %d (likely due to bug 4900)\n",
lum_file1->lmm_stripe_count, stripe_count);
if (lum_dir != NULL)
stripe_size = (int)lum_dir->lmm_stripe_size;
if (stripe_size == 0) {
if (cfs_get_param_paths(&path, "lov/%s/stripesize",
puuid->uuid) != 0)
return 2;
if (read_proc_entry(path.gl_pathv[0], buf, sizeof(buf)) < 0) {
cfs_free_param_data(&path);
return 5;
}
cfs_free_param_data(&path);
stripe_size = atoi(buf);
}
if (lum_file1->lmm_stripe_size != stripe_size) {
llapi_err_noerrno(LLAPI_MSG_ERROR,
"file1 stripe size %d != dir %d\n",
lum_file1->lmm_stripe_size, stripe_size);
return 8;
}
if (lum_dir != NULL)
stripe_offset = (short int)lum_dir->lmm_stripe_offset;
if (stripe_offset != -1) {
for (i = 0; i < stripe_count; i++)
if (lum_file1->lmm_objects[i].l_ost_idx !=
(stripe_offset + i) % ost_count) {
llapi_err_noerrno(LLAPI_MSG_WARN,
"warning: file1 non-sequential "
"stripe[%d] %d != %d\n", i,
lum_file1->lmm_objects[i].l_ost_idx,
(stripe_offset + i) % ost_count);
}
} else if (lum_file2 != NULL) {
int next, idx, stripe = stripe_count - 1;
next = (lum_file1->lmm_objects[stripe].l_ost_idx + 1) %
ost_count;
idx = lum_file2->lmm_objects[0].l_ost_idx;
if (idx != next) {
llapi_err_noerrno(LLAPI_MSG_WARN,
"warning: non-sequential "
"file1 stripe[%d] %d != file2 stripe[0] %d\n",
stripe, lum_file1->lmm_objects[stripe].l_ost_idx,
idx);
}
}
return 0;
}
int compare(struct lov_user_md *lum_dir, struct lov_user_md *lum_file1,
struct lov_user_md *lum_file2)
{
int stripe_count = 0, min_stripe_count = 0, def_stripe_count = 1;
int stripe_size = 0;
int stripe_offset = -1;
int ost_count;
char buf[128];
char lov_path[PATH_MAX];
char tmp_path[PATH_MAX];
int i;
FILE *fp;
fp = popen("\\ls -d /proc/fs/lustre/lov/*clilov* | head -1", "r");
if (!fp) {
llapi_err(LLAPI_MSG_ERROR,
"open(lustre/lov/*clilov*) failed: %s\n");
return 2;
}
if (fscanf(fp, "%s", lov_path) < 1) {
llapi_err(LLAPI_MSG_ERROR,
"read(lustre/lov/*clilov*) failed: %s\n");
pclose(fp);
return 3;
}
pclose(fp);
snprintf(tmp_path, sizeof(tmp_path) - 1, "%s/stripecount",
lov_path);
if (read_proc_entry(tmp_path, buf, sizeof(buf)) < 0)
return 5;
def_stripe_count = (short)atoi(buf);
snprintf(tmp_path, sizeof(tmp_path) - 1, "%s/numobd", lov_path);
if (read_proc_entry(tmp_path, buf, sizeof(buf)) < 0)
return 6;
ost_count = atoi(buf);
if (lum_dir == NULL) {
stripe_count = def_stripe_count;
min_stripe_count = -1;
} else {
stripe_count = (signed short)lum_dir->lmm_stripe_count;
printf("dir stripe %d, ", stripe_count);
min_stripe_count = 1;
}
printf("default stripe %d, ost count %d\n",
def_stripe_count, ost_count);
if (stripe_count == 0) {
min_stripe_count = -1;
stripe_count = 1;
}
stripe_count = (stripe_count > 0 && stripe_count <= ost_count) ?
stripe_count : ost_count;
min_stripe_count = min_stripe_count > 0 ? stripe_count :
((stripe_count + 1) / 2);
if (lum_file1->lmm_stripe_count != stripe_count ||
lum_file1->lmm_stripe_count < min_stripe_count) {
llapi_err(LLAPI_MSG_ERROR, "file1 stripe count %d != dir %d\n",
lum_file1->lmm_stripe_count, stripe_count);
return 7;
}
if (lum_file1->lmm_stripe_count < stripe_count)
llapi_err(LLAPI_MSG_WARN, "warning: file1 used fewer stripes"
" %d < dir %d (likely due to bug 4900)\n",
lum_file1->lmm_stripe_count, stripe_count);
if (lum_dir != NULL)
stripe_size = (int)lum_dir->lmm_stripe_size;
if (stripe_size == 0) {
snprintf(tmp_path, sizeof(tmp_path) - 1, "%s/stripesize",
lov_path);
if (read_proc_entry(tmp_path, buf, sizeof(buf)) < 0)
return 5;
stripe_size = atoi(buf);
}
if (lum_file1->lmm_stripe_size != stripe_size) {
llapi_err(LLAPI_MSG_ERROR, "file1 stripe size %d != dir %d\n",
lum_file1->lmm_stripe_size, stripe_size);
return 8;
}
if (lum_dir != NULL)
stripe_offset = (short int)lum_dir->lmm_stripe_offset;
if (stripe_offset != -1) {
for (i = 0; i < stripe_count; i++)
if (lum_file1->lmm_objects[i].l_ost_idx !=
(stripe_offset + i) % ost_count) {
llapi_err(LLAPI_MSG_WARN,
"warning: file1 non-sequential "
"stripe[%d] %d != %d\n", i,
lum_file1->lmm_objects[i].l_ost_idx,
(stripe_offset + i) % ost_count);
}
} else if (lum_file2 != NULL) {
int next, idx, stripe = stripe_count - 1;
next = (lum_file1->lmm_objects[stripe].l_ost_idx + 1) %
ost_count;
idx = lum_file2->lmm_objects[0].l_ost_idx;
if (idx != next) {
llapi_err(LLAPI_MSG_WARN, "warning: non-sequential "
"file1 stripe[%d] %d != file2 stripe[0] %d\n",
stripe, lum_file1->lmm_objects[stripe].l_ost_idx,
idx);
}
}
return 0;
}