@@ -503,6 +503,7 @@ filelayout_free_lseg(struct pnfs_layout_segment *lseg)
dprintk("--> %s\n", __func__);
nfs4_fl_put_deviceid(fl->dsaddr);
+ kfree(fl->commit_buckets);
_filelayout_free_lseg(fl);
}
@@ -524,6 +525,27 @@ filelayout_alloc_lseg(struct pnfs_layout_hdr *layoutid,
_filelayout_free_lseg(fl);
return NULL;
}
+
+ /* This assumes there is only one IOMODE_RW lseg. What
+ * we really want to do is have a layout_hdr level
+ * dictionary of <multipath_list4, fh> keys, each
+ * associated with a struct list_head, populated by calls
+ * to filelayout_write_pagelist().
+ * */
+ if ((!fl->commit_through_mds) && (lgr->range.iomode == IOMODE_RW)) {
+ int i;
+ int size = (fl->stripe_type == STRIPE_SPARSE) ?
+ fl->dsaddr->ds_num : fl->dsaddr->stripe_count;
+
+ fl->commit_buckets = kcalloc(size, sizeof(struct list_head), GFP_KERNEL);
+ if (!fl->commit_buckets) {
+ filelayout_free_lseg(&fl->generic_hdr);
+ return NULL;
+ }
+ fl->number_of_buckets = size;
+ for (i = 0; i < size; i++)
+ INIT_LIST_HEAD(&fl->commit_buckets[i]);
+ }
return &fl->generic_hdr;
}
@@ -79,6 +79,8 @@ struct nfs4_filelayout_segment {
struct nfs4_file_layout_dsaddr *dsaddr; /* Point to GETDEVINFO data */
unsigned int num_fh;
struct nfs_fh **fh_array;
+ struct list_head *commit_buckets; /* Sort commits to ds */
+ int number_of_buckets;
};
static inline struct nfs4_filelayout_segment *