nfs/flexfiles: Use the layout segment for reading unless it a IOMODE_RW and reading is disabled
Signed-off-by: Tom Haynes <loghyr@primarydata.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
diff --git a/fs/nfs/flexfilelayout/flexfilelayout.c b/fs/nfs/flexfilelayout/flexfilelayout.c
index 40bccb2..a7aeb74 100644
--- a/fs/nfs/flexfilelayout/flexfilelayout.c
+++ b/fs/nfs/flexfilelayout/flexfilelayout.c
@@ -830,7 +830,8 @@
int ds_idx;
/* Use full layout for now */
- if (!pgio->pg_lseg) {
+ if (!pgio->pg_lseg || ff_layout_avoid_read_on_rw(pgio->pg_lseg)) {
+ pnfs_put_lseg(pgio->pg_lseg);
pgio->pg_lseg = pnfs_update_layout(pgio->pg_inode,
req->wb_context,
0,
@@ -840,9 +841,9 @@
if (IS_ERR(pgio->pg_lseg)) {
pgio->pg_error = PTR_ERR(pgio->pg_lseg);
pgio->pg_lseg = NULL;
- return;
}
}
+
/* If no lseg, fall back to read through mds */
if (pgio->pg_lseg == NULL)
goto out_mds;