RETURN(rc);
}
-#if 0
-static int lmv_all_chars_policy(int count, const char *name,
- int len)
-{
- unsigned int c = 0;
-
- while (len > 0)
- c += name[--len];
- c = c % count;
- return c;
-}
-
-static int lmv_nid_policy(struct lmv_obd *lmv)
-{
- struct obd_import *imp;
- __u32 id;
-
- /*
- * XXX: To get nid we assume that underlying obd device is mdc.
- */
- imp = class_exp2cliimp(lmv->tgts[0].ltd_exp);
- id = imp->imp_connection->c_self ^ (imp->imp_connection->c_self >> 32);
- return id % lmv->desc.ld_tgt_count;
-}
-
-static int lmv_choose_mds(struct lmv_obd *lmv, struct md_op_data *op_data,
- placement_policy_t placement)
-{
- switch (placement) {
- case PLACEMENT_CHAR_POLICY:
- return lmv_all_chars_policy(lmv->desc.ld_tgt_count,
- op_data->op_name,
- op_data->op_namelen);
- case PLACEMENT_NID_POLICY:
- return lmv_nid_policy(lmv);
-
- default:
- break;
- }
-
- CERROR("Unsupported placement policy %x\n", placement);
- return -EINVAL;
-}
-#endif
-
/**
* This is _inode_ placement policy function (not name).
*/
lmv->desc.ld_active_tgt_count = 0;
lmv->max_def_easize = 0;
lmv->max_easize = 0;
- lmv->lmv_placement = PLACEMENT_CHAR_POLICY;
spin_lock_init(&lmv->lmv_lock);
mutex_init(&lmv->lmv_init_mutex);
}
LPROC_SEQ_FOPS_RO(lmv_numobd);
-static const char *placement_name[] = {
- [PLACEMENT_CHAR_POLICY] = "CHAR",
- [PLACEMENT_NID_POLICY] = "NID",
- [PLACEMENT_INVAL_POLICY] = "INVAL"
-};
-
-static placement_policy_t placement_name2policy(char *name, int len)
-{
- int i;
-
- for (i = 0; i < PLACEMENT_MAX_POLICY; i++) {
- if (!strncmp(placement_name[i], name, len))
- return i;
- }
- return PLACEMENT_INVAL_POLICY;
-}
-
-static const char *placement_policy2name(placement_policy_t placement)
-{
- LASSERT(placement < PLACEMENT_MAX_POLICY);
- return placement_name[placement];
-}
-
-static int lmv_placement_seq_show(struct seq_file *m, void *v)
-{
- struct obd_device *dev = (struct obd_device *)m->private;
- struct lmv_obd *lmv;
-
- LASSERT(dev != NULL);
- lmv = &dev->u.lmv;
- seq_printf(m, "%s\n", placement_policy2name(lmv->lmv_placement));
- return 0;
-}
-
-#define MAX_POLICY_STRING_SIZE 64
-
-static ssize_t lmv_placement_seq_write(struct file *file,
- const char __user *buffer,
- size_t count, loff_t *off)
-{
- struct obd_device *dev = ((struct seq_file *)file->private_data)->private;
- char dummy[MAX_POLICY_STRING_SIZE + 1];
- int len = count;
- placement_policy_t policy;
- struct lmv_obd *lmv;
-
- if (copy_from_user(dummy, buffer, MAX_POLICY_STRING_SIZE))
- return -EFAULT;
-
- LASSERT(dev != NULL);
- lmv = &dev->u.lmv;
-
- if (len > MAX_POLICY_STRING_SIZE)
- len = MAX_POLICY_STRING_SIZE;
-
- if (dummy[len - 1] == '\n')
- len--;
- dummy[len] = '\0';
-
- policy = placement_name2policy(dummy, len);
- if (policy != PLACEMENT_INVAL_POLICY) {
- spin_lock(&lmv->lmv_lock);
- lmv->lmv_placement = policy;
- spin_unlock(&lmv->lmv_lock);
- } else {
- CERROR("Invalid placement policy \"%s\"!\n", dummy);
- return -EINVAL;
- }
- return count;
-}
-LPROC_SEQ_FOPS(lmv_placement);
-
static int lmv_activeobd_seq_show(struct seq_file *m, void *v)
{
struct obd_device *dev = (struct obd_device *)m->private;
struct lprocfs_vars lprocfs_lmv_obd_vars[] = {
{ .name = "numobd",
.fops = &lmv_numobd_fops },
- { .name = "placement",
- .fops = &lmv_placement_fops },
{ .name = "activeobd",
.fops = &lmv_activeobd_fops },
{ .name = "uuid",