static int osc_wr_cur_grant_bytes(struct file *file, const char *buffer,
unsigned long count, void *data)
{
struct obd_device *obd = data;
struct client_obd *cli = &obd->u.cli;
int rc;
__u64 val;
if (obd == NULL)
return 0;
rc = lprocfs_write_u64_helper(buffer, count, &val);
if (rc)
return rc;
/* this is only for shrinking grant */
client_obd_list_lock(&cli->cl_loi_list_lock);
if (val >= cli->cl_avail_grant) {
client_obd_list_unlock(&cli->cl_loi_list_lock);
return 0;
}
client_obd_list_unlock(&cli->cl_loi_list_lock);
LPROCFS_CLIMP_CHECK(obd);
if (cli->cl_import->imp_state == LUSTRE_IMP_FULL)
rc = osc_shrink_grant_to_target(cli, val);
LPROCFS_CLIMP_EXIT(obd);
if (rc)
return rc;
return count;
}
/**
* Set default stripe offset.
*
* Usually contains -1 allowing Lustre to balance objects among OST
* otherwise may cause severe OST imbalance.
*
* \param[in] file proc file
* \param[in] buffer string describing starting OST index for new files
* \param[in] count @buffer length
* \param[in] off unused for single entry
*
* \retval @count on success
* \retval negative error code if failed
*/
static ssize_t
lod_stripeoffset_seq_write(struct file *file, const char __user *buffer,
size_t count, loff_t *off)
{
struct seq_file *m = file->private_data;
struct obd_device *dev = m->private;
struct lod_device *lod;
__u64 val;
int rc;
LASSERT(dev != NULL);
lod = lu2lod_dev(dev->obd_lu_dev);
rc = lprocfs_write_u64_helper(buffer, count, &val);
if (rc)
return rc;
lod->lod_desc.ld_default_stripe_offset = val;
return count;
}
int lprocfs_osd_wr_readcache(struct file *file, const char *buffer,
unsigned long count, void *data)
{
struct osd_device *osd = osd_dt_dev(data);
__u64 val;
int rc;
LASSERT(osd != NULL);
if (unlikely(osd->od_mnt == NULL))
return -EINPROGRESS;
rc = lprocfs_write_u64_helper(buffer, count, &val);
if (rc)
return rc;
osd->od_readcache_max_filesize = val > OSD_MAX_CACHE_SIZE ?
OSD_MAX_CACHE_SIZE : val;
return count;
}
ssize_t
ldiskfs_osd_readcache_seq_write(struct file *file, const char *buffer,
size_t count, loff_t *off)
{
struct seq_file *m = file->private_data;
struct dt_device *dt = m->private;
struct osd_device *osd = osd_dt_dev(dt);
__u64 val;
int rc;
LASSERT(osd != NULL);
if (unlikely(osd->od_mnt == NULL))
return -EINPROGRESS;
rc = lprocfs_write_u64_helper(buffer, count, &val);
if (rc)
return rc;
osd->od_readcache_max_filesize = val > OSD_MAX_CACHE_SIZE ?
OSD_MAX_CACHE_SIZE : val;
return count;
}