@@ -220,7 +220,7 @@ filelayout_read_pagelist(struct nfs_read_data *data)
struct pnfs_layout_segment *lseg = data->lseg;
struct nfs4_pnfs_ds *ds;
loff_t offset = data->args.offset;
- u32 idx;
+ u32 j, idx;
struct nfs_fh *fh;
dprintk("--> %s ino %lu pgbase %u req %Zu@%llu\n",
@@ -228,7 +228,8 @@ filelayout_read_pagelist(struct nfs_read_data *data)
data->args.pgbase, (size_t)data->args.count, offset);
/* Retrieve the correct rpc_client for the byte range */
- idx = nfs4_fl_calc_ds_index(lseg, offset);
+ j = nfs4_fl_calc_j_index(lseg, offset);
+ idx = nfs4_fl_calc_ds_index(lseg, j);
ds = nfs4_fl_prepare_ds(lseg, idx);
if (!ds) {
/* Either layout fh index faulty, or ds connect failed */
@@ -241,7 +242,7 @@ filelayout_read_pagelist(struct nfs_read_data *data)
/* No multipath support. Use first DS */
data->ds_clp = ds->ds_clp;
- fh = nfs4_fl_select_ds_fh(lseg, offset);
+ fh = nfs4_fl_select_ds_fh(lseg, j);
if (fh)
data->args.fh = fh;
@@ -84,12 +84,13 @@ FILELAYOUT_LSEG(struct pnfs_layout_segment *lseg)
}
extern struct nfs_fh *
-nfs4_fl_select_ds_fh(struct pnfs_layout_segment *lseg, loff_t offset);
+nfs4_fl_select_ds_fh(struct pnfs_layout_segment *lseg, u32 j);
extern void nfs4_fl_free_deviceid_callback(struct pnfs_deviceid_node *);
extern void print_ds(struct nfs4_pnfs_ds *ds);
extern void print_deviceid(struct nfs4_deviceid *dev_id);
-u32 nfs4_fl_calc_ds_index(struct pnfs_layout_segment *lseg, loff_t offset);
+u32 nfs4_fl_calc_j_index(struct pnfs_layout_segment *lseg, loff_t offset);
+u32 nfs4_fl_calc_ds_index(struct pnfs_layout_segment *lseg, u32 j);
struct nfs4_pnfs_ds *nfs4_fl_prepare_ds(struct pnfs_layout_segment *lseg,
u32 ds_idx);
extern struct nfs4_file_layout_dsaddr *
@@ -517,8 +517,8 @@ nfs4_fl_find_get_deviceid(struct nfs_client *clp, struct nfs4_deviceid *id)
* Want res = (offset - layout->pattern_offset)/ layout->stripe_unit
* Then: ((res + fsi) % dsaddr->stripe_count)
*/
-static u32
-_nfs4_fl_calc_j_index(struct pnfs_layout_segment *lseg, loff_t offset)
+u32
+nfs4_fl_calc_j_index(struct pnfs_layout_segment *lseg, loff_t offset)
{
struct nfs4_filelayout_segment *flseg = FILELAYOUT_LSEG(lseg);
u64 tmp;
@@ -530,16 +530,13 @@ _nfs4_fl_calc_j_index(struct pnfs_layout_segment *lseg, loff_t offset)
}
u32
-nfs4_fl_calc_ds_index(struct pnfs_layout_segment *lseg, loff_t offset)
+nfs4_fl_calc_ds_index(struct pnfs_layout_segment *lseg, u32 j)
{
- u32 j;
-
- j = _nfs4_fl_calc_j_index(lseg, offset);
return FILELAYOUT_LSEG(lseg)->dsaddr->stripe_indices[j];
}
struct nfs_fh *
-nfs4_fl_select_ds_fh(struct pnfs_layout_segment *lseg, loff_t offset)
+nfs4_fl_select_ds_fh(struct pnfs_layout_segment *lseg, u32 j)
{
struct nfs4_filelayout_segment *flseg = FILELAYOUT_LSEG(lseg);
u32 i;
@@ -551,11 +548,12 @@ nfs4_fl_select_ds_fh(struct pnfs_layout_segment *lseg, loff_t offset)
/* Use the MDS OPEN fh set in nfs_read_rpcsetup */
return NULL;
else
- i = nfs4_fl_calc_ds_index(lseg, offset);
+ i = nfs4_fl_calc_ds_index(lseg, j);
} else
- i = _nfs4_fl_calc_j_index(lseg, offset);
+ i = j;
return flseg->fh_array[i];
}
+
void
filelayout_mark_devid_negative(struct nfs_client *mds_clp,
struct pnfs_deviceid_node *devid,