Commit 523412b9 authored by Olga Kornievskaia's avatar Olga Kornievskaia Committed by Trond Myklebust
Browse files

pNFS/filelayout: check layout segment range 



Before doing the IO, check that we have the layout covering the range of
IO.

Signed-off-by: default avatarOlga Kornievskaia <kolga@netapp.com>
Reviewed-by: default avatarBenjamin Coddington <bcodding@redhat.com>
Signed-off-by: default avatarTrond Myklebust <trond.myklebust@hammerspace.com>
parent 3ebcb246

fs/nfs/filelayout/filelayout.c

+2 −0
Original line number Diff line number Diff line
@@ -868,6 +868,7 @@ filelayout_pg_init_read(struct nfs_pageio_descriptor *pgio, 
			struct nfs_page *req)

{

	pnfs_generic_pg_check_layout(pgio);

	pnfs_generic_pg_check_range(pgio, req);

	if (!pgio->pg_lseg) {

		pgio->pg_lseg = fl_pnfs_update_layout(pgio->pg_inode,

						      nfs_req_openctx(req),
@@ -892,6 +893,7 @@ filelayout_pg_init_write(struct nfs_pageio_descriptor *pgio, 
			 struct nfs_page *req)

{

	pnfs_generic_pg_check_layout(pgio);

	pnfs_generic_pg_check_range(pgio, req);

	if (!pgio->pg_lseg) {

		pgio->pg_lseg = fl_pnfs_update_layout(pgio->pg_inode,

						      nfs_req_openctx(req),